# Signal Converter, Current, Voltage, Current, Voltage, 1 Channels, 0.05 %, 300 VDC

![Product image](https://novapart.co/image/farnell:4199597/)

**URL**: https://novapart.co/products/DRST-DC/signal-converter-current-voltage-1-channels-005
**SKU**: DRST-DC
**Manufacturer**: OMEGA
**Category**: Automation & Process Control || Signal Conditioning || Signal Converters
**Price**: €303.1300
**Stock**: 10+
**Lead Time**: 50 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Accuracy % | 0.05% |
| Product Range | - |
| Supply Voltage | 300VDC |
| Isolation Input | Isolated |
| No. Of Channels | 1 Channel |
| Output Accuracy | - |
| No. Of Output Channels | 1Channels |
| Signal Conditioner Input | Current, Voltage |
| Signal Conditioner Output | Current, Voltage |
| Signal Conditioner Mounting | DIN Rail |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4199597/)

## **User’s Guide** 

_**Shop online at omega.com**_ 

_**e-mail: info@omega.com For latest product manuals: www.omegamanual.info**_ 

## **DRST-DC Universal Uni-/Bipolar Signal Transmitter** 

## **omega.com   info@omega.com** 

||**omega.com   info@omega.com**||
|---|---|---|
||**Servicing North America:**||
|**U.S.A.**|Omega Engineering, Inc.||
|**Headquarters:**|800 Connecticut Ave. Suite 5N01 Norwalk, CT|06854|
||Toll-Free: 1-800-826-6342 (USA & Canada only) Customer||
||Service: 1-800-622-2378 (USA & Canada only) Engineering||
||Service: 1-800-872-9436 (USA & Canada only)||
||Tel: (203) 359-1660|Fax: (203) 359-7700|
||e-mail: info@omega.com||



## **For Other Locations Visit omega.com/worldwide** 

The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice. 

## Universal Uni-/bipolar signal transmitter DRST-DC 

## Table of contents 

|Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4|
|---|---|
|Symbol identifcation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|4|
|Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|5|
|How to demount systemDRST-DC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6||
|When front LED flashes red orDRSL-DISPLAYshows AO.ER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|6|
|Advanced features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Mounting / installation / programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|7|
|Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|8|
|DRSL-DISPLAY/ programming front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|9|
|Mounting / demounting theDRSL-DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|<br>9|
|Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|10|
|Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|10|
|Electrical specifcations . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|10|
|Configurable input error indication and input limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|14|
|Square root function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|17|
|DRSL-DISPLAYreadout of input error detection and signal ”outside range”. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|19|
|Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|20|
|Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|21|
|Confguration / operating the function keys .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|22|
|Routing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|24|
|Routing diagram, advanced settings (ADV.SET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|28|
|Help text overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|30|
|Document history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .|32|



3 

## Warning 

This device is designed for connection to hazardous electric voltages. Ignoring this warning can result in severe personal injury or mechanical damage. 

To avoid the risk of electric shock and fire, the safety instructions of this guide must be observed and the guidelines followed. The specifications must not be exceeded, and the device must only be applied as described in the following. 

## GENERAL 

Prior to the commissioning of the device, this installation guide must be examined carefully. 

Only qualified personnel (technicians) should install this device. If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. 

## Warning 

## HAZARDOUS VOLTAGE 

Until the device is fixed, do not connect hazardous voltages to the device. The following operations should only be carried out on a disconnected device and under ESD safe conditions: General mounting, connection and disconnection of wires. Troubleshooting the device. 

Repair of the device and replacement of circuit breakers must be done by Omega Engineering o nly. 

## Warning 

Do not open the front plate of the device as this will cause damage to the connector for the display / programming front DRSL-DISPLAY. 

This device contains no DIP-switches or jumpers. 

CAUTION 

SYSTEM DRST-DC must be mounted on a DIN rail according to DIN EN 60715. 

## Symbol identification 

Triangle with an exclamation mark: Warning / demand. Potentially lethal situations. Read the manual before installation and commissioning of the device in order to avoid incidents that could lead to personal injury or mechanical damage. 

The CE mark proves the compliance of the device with the essential requirements of the directives. 

The double insulation symbol shows that the device is protected by double or reinforced insulation. 

4 

## Safety instructions 

## Definitions 

Hazardous voltages have been defined as the ranges: 75 to 1500 Volt DC, and 50 to 1000 Volt AC. Technicians are qualified persons educated or trained to mount, operate, and also trouble-shoot technically correct and in accordance with safety regulations. 

Operators, being familiar with the contents of this manual, adjust and operate the knobs or potentiometers during normal operation. 

## Receipt and unpacking 

Unpack the device without damaging it and check whether the device type corresponds to the one ordered. The packing should always follow the device until this has been permanently mounted. 

## Environment 

Avoid direct sun light, dust, high temperatures, mechanical vibrations and shock, and rain and heavy moisture. If necessary, heating in excess of the stated limits for ambient temperatures should be avoided by way of ventilation. The device must be installed in pollution degree 2 or better. 

## Mounting 

Only technicians, who are familiar with the technical terms, warnings, and instructions in the manual and who are able to follow these, should connect the device. Should there be any doubt as to the correct handling of the device, please contact your local distributor or, alternatively, 

Mounting and connection of the device should comply with national legislation for mounting of electric materials, i.e. wire cross section, protective fuse, and location. 

Descriptions of input / output and supply connections are shown in the block diagram and side label. 

The following apply to fixed hazardous voltages-connected devices: 

The max. size of the protective fuse is 10 A and, together with a power switch, it should be easily accessible and close to the device. The power switch should be marked with a label indicating that it will switch off the voltage to the device. 

Year of manufacture can be taken from the first two digits in the serial number. 

## UL installation requirements 

Use 60/75°C copper conducters only For use only in pollution degree 2 or better Max. ambient temperature .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  60°C Max. wire size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  AWG 26-14 UL file number  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  E248256 

## Calibration and Adjustment 

During calibration and adjustment, the measuring and connection of external voltages must be carried out according to the specifications of this manual. The technician must use tools and instruments that are safe to use. 

## Normal operation 

Operators are only allowed to adjust and operate devices that are safely fixed in panels, etc., thus avoiding the danger of personal injury and damage. This means there is no electrical shock hazard, and the device is easily accessible. 

## Cleaning 

When disconnected, the device may be cleaned with a cloth moistened with distilled water. 

## Liability 

To the extent the instructions in this manual are not strictly observed, the custom er cannot advance a demand against Omega Engineering that would otherwise exist according to the concluded sales agreement. 

5 

How to demount system DRST-DC 

Picture 1: 

The device is detached from the DIN rail by moving the bottom lock down. 

## When front LED flashes red or DRSL-DISPLAY shows AO.ER 

The DRST-DC is designed with a high safety level. Therefore, the device continuously measures the output current. If "S4-20" is selected during configuration, and output current drops to 0 mA, the DRSL-DISPLAY will indicate "AO.ER" and the front LED will turn red. (A 0 mA output can be caused by an open output loop). The error mode can be reset by power cycling the device or stepping through the menu. 

6 

## Universal uni-/bipolar signal transmitter DRST-DC 

- Measures uni-/bipolar DC current and voltage signals 

- Passive/active current output and buffered voltage output 

- Extremely good signal dynamics for spans from 25 mV to 300 VDC 

- Programming, process monitoring and diagnostics via DRSL-DISPLAY 

- Fast < 20 ms response time and excellent < 0.05% accuracy 

- Configurable input limits 

- Universally powered by 21.6…253 VAC / 19.2...300 VDC 

## Application 

- Fast < 20 ms response time for measuring signals produced by torque, position, current & acceleration sensors. 

- User configurable bipolar or unipolar I/O means DRST-DC is suitable for nearly any DC voltage or current conversion. 

- • Freely programmable between ±300 VDC and ±100 mA. 

- The excitation source allows measurement of a 2-wire or 3-wire transmitter, or a potentiometer. 

- The active or passive I/O makes the DRST-DC perfect for power matching current loops. 

- Converts narrow bipolar inputs to wide bipolar or unipolar outputs, e.g., ±1 volt input = ±10 volt or 4...20 mA output. 

- Selectable direct or inverse I/O makes the DRST-DC suitable for proportional control applications. 

- Configurable input limits control the output value for increased safety. 

- ±20 VDC buffered voltage output for controlling devices like the PVG 32 valve (6...18 VDC). 

- Connection for both passive and active inputs and outputs. 

- The detachable DRSL-DISPLAY provides enhanced diagnostics. 

## Technical characteristics 

- The latest analog and digital techniques are used to obtain maximum accuracy and immunity to interference. 

- Possibility of output safety readback by selecting S4...20 mA output. 

- The current output can drive up to 1000 Ohms, with an adjustable response time of 0.0…60.0 seconds. 

- Exceptional mA output load stability of < 0.001% of span / 100 Ohm. 

- Meets the NAMUR NE21 recommendations, ensuring high accuracy in harsh EMC environments. 

- Meets the NAMUR NE43 recommendations, allowing the control system to easily detect a sensor error. 

- Each unit is tested to a high 2.3 kVAC, 3-port galvanic isolation level. 

- Excellent signal to noise ratio of > 60 dB. 

## Mounting / installation / programming 

- Very low power consumption means units can be mounted side by side without an air gap – even at 60°C ambient temperature. 

- Configuration, monitoring, 2-point process calibration and more are accomplished using either the DRSL- detachable display or the DRST-CM detachable digital communication enabler. 

- All programming can be password-protected. 

7 

## Applications 

## Input signals: 

**==> picture [321 x 189] intentionally omitted <==**

**----- Start of picture text -----**<br>
Potentio-<br>meter Current 2-wire Tx 3-wire Tx Voltage<br>44<br>+<br>+<br>43<br>+<br>100 mA<br>(±)<br>42<br>300 V<br>(±)<br>+<br>41<br>**----- End of picture text -----**<br>


**==> picture [106 x 138] intentionally omitted <==**

## Output signals: 

**==> picture [107 x 139] intentionally omitted <==**

**==> picture [308 x 212] intentionally omitted <==**

**----- Start of picture text -----**<br>
+ V supply<br>Buffered  3.5...28.8 V<br>Current & voltage voltage 2-wire<br>12<br>+<br>14<br>+ 10 V 10 V +<br>(±)<br>1 V 1 V<br>13<br>+ +<br>11 }<br>**----- End of picture text -----**<br>


## Power connection: 

**==> picture [62 x 133] intentionally omitted <==**

**----- Start of picture text -----**<br>
21.6...253 VAC<br>or<br>19.2...300 VDC<br>33<br>32<br>31<br>**----- End of picture text -----**<br>


**==> picture [107 x 130] intentionally omitted <==**

8 

## DRSL-DISPLAY & DRST-CM / programming front 

## Functionality 

The simple and easily understandable menu structure and the explanatory help texts guide you effortlessly and automatically through the configuration steps, thus making the product very easy to use. Functions and configuration options are described in the section ”Configuration / operating the function keys”. 

## Application 

- Communications interface for modification of operational parameters in DRST-DC. 

- Can be moved from one DRST-DC device to another and download the configuration of the first unit to subsequent units. 

- When mounted in the process, the display shows process values and device status. 

## Technical characteristics 

- LCD display with 4 lines: Line 1 (H=5.57 mm) shows the scaled process value - OK or error. Line 2 (H=3.33 mm) shows the selected engineering unit. Line 3 (H=3.33 mm) shows analog output or TAG no. 

   - Line 4 shows status for communication and signal trending. 

- Programming access can be blocked by assigning a password. The password is saved in the device in order to ensure a high degree of protection against unauthorized modifications to the configuration. 

## Mounting / demounting the DRSL-DISPLAY & DRST-CM 

- 1: Insert the tabs of the DRSL-DISPLAY & DRST-CM the holes at the top of the device. 

- 2: Hinge the DRSL-DISPLAY & DRST-CM  down until it snaps into place. 

## Demounting of the DRSL-DISPLAY & DRST-CM 

- 3: Push the release button on the bottom of the DRSL-DISPLAY & DRST-CM  and hinge the the DRSL-DISPLAY & DRSTCM  out and up. 

- 4: With the DRSL-DISPLAY & DRST-CM  hinged up, remove from holes at the top of the device. 

**==> picture [274 x 169] intentionally omitted <==**

**----- Start of picture text -----**<br>
foosel SN [esse<br>1 _ a 4<br>2<br>3<br>oa =<br><br>**----- End of picture text -----**<br>


9 

Order 

## DRST-DC = Universal uni-/bipolar signal 

## transmitter Accessories 

## DRSL-DISPLAY = Display / programming front 

## DRST-CM = Communication enabler 

## Electrical specifications Environmental conditions: 

Operating temperature  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  -20°C to +60°C Storage temperature  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -20°C to +85°C Calibration temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20...28°C Relative humidity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  < 95% RH (non-cond.) Protection degree  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  IP20 Installation in pollution degree 2 & measurement / overvoltage category II. 

## Mechanical specifications: 

Dimensions (HxWxD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  109 x 23.5 x 104 mm Dimensions (HxWxD) w/DRSL-DISPLAY.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  109 x 23.5 x 116 / 131 mm Weight approx. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  250 g Weight incl. DRSL-DISPLAY(approx.) .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  285 g / 350 g DIN rail type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  DIN EN 60715 - 35 mm Wire size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.13...2.08 mm[2] / AWG 26...14 stranded wire Screw terminal torque. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 Nm Common electrical specifications: Supply voltage, universal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21.6...253 VAC, 50...60 Hz or 19.2...300 VDC Max. required power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ≤ 2.5 W Max. power dissipation  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ≤ 2.0 W Isolation voltage - test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2.3 kVAC Isolation voltage - working . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  250 VAC (reinforced) / 500 VAC (basic) Programming .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Communication enabler DRST-CM / Programming front DRSL-DISPLAY Signal dynamics, input / output .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  24 bit / 18 bit Signal / noise ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  > 60 dB Bandwidth (3 dB)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  > 40 Hz Response time (0...90%, 100...10%) . . . . . . . . . . . . . . . . . . . . . . . .  < 20 ms Auxiliary supplies: 2-wire loop supply (terminal 43,  44). . . . . . . . . . . . . . . . . . . . . . . .  > 16 V @ 20 mA 3-wire loop supply (terminal 42, 44) .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  > 18...< 28 V @ 23...0 mA Loop supply limitation (terminal 42, 44) . . . . . . . . . . . . . . . . . . . . . .  27...35 mA avg., < 80 mA peak Reference voltage .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  2,5V ±0.5% Reference voltage, load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0...15 mA Current limit, reference voltage .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  < 60 mA 

10 

Accuracy, the greater of general and basic values: 

|Accuracy, the greater of general and basic values:|Accuracy, the greater of general and basic values:|Accuracy, the greater of general and basic values:|
|---|---|---|
|General values*|||
|Input type|Absolute accuracy|Temperature coefcient|
|All|≤ ±0.05% of span|≤ ±0.01% of span / °C|



|Basic values|Basic values||
|---|---|---|
|Type|Basic accuracy|Temperature coefcient|
|Current input|±0.334 µA|±0.067 µA / °C|
|Voltage input|±8.33 µV|±1.67 µV / °C|
|Current output|±1.33 µA|±0.266 µA / °C|
|Bufered<br>voltage output|±267µV|±53.4µV / °C|
|Shunted voltage<br>output(±1 V)|±267µV|±53.4µV / °C|
|Shunted voltage<br>output(±10 V)|±1333µV|±0.267µV / °C|
||||
|EMC - immunity infuence. . . . . . . . . . . . . . . . . .<br>Extended EMC immunity:<br>NAMUR NE 21, A criterion, burst  . . . . . . . . . . . . .<br>Conducted emission, class A .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .||. . . . . . . < ±0.5% of span<br>. . . . . . . < ±1% of span<br>.  .  .  .  .  .  . 150 kHz...10 MHz|



## of span = of selected standard range 

* For custom input and output ranges, values for accuracy, temperature coefficient and EMC performance are valid with a maximum input offset of 50% and a maximum output offset of 20%. 

## Input specifications: 

Current input: Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±100 mA Programmable measurement ranges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0...1, 0...5, 1...5, 0...20, 4...20, ±1, ±5, ±10, ±20, ±50, ±100 mA Custom configurable signal range . . . . . . . . . . . . . . . . . . . . . . . . . .  ±100 mA Min. span  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5 mA Input resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Nom. 20 Ω + PTC 10 Ω Input voltage drop, nom. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.6 V @ 20 mA Voltage input: Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±300 VDC Programmable measurement ranges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0...0.1, 0...1, 0.2...1, 0...2.5, 0...5, 1...5, 0...10, 2...10, 0...100, 0...300, ±0.1, ±1, ±2.5, ±5, ±10, ±100, ±300 V Custom configurable signal range . . . . . . . . . . . . . . . . . . . . . . . . . .  ±300 V Min. span  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25 mV Input resistance, nom. > 2.5 V input .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . .  3 MΩ nom. ≤ 2.5 V input  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . .  > 10 MΩ Potentiometer input: 3-wire potentiometer input (terminal 41, 42 & 44) . . . . . . . . . . . . . . .  0...100% Reference voltage (terminal 42, 44)  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . .  2.5 V Calibration resistance .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . .  5 kΩ Min. potentiometer resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . .  200 Ω 

11 

## Configurable input limits: 

Error detection .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Enable / disable Configurable input limits, low: 

VOLT .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  'Minimum selected input’ to -300 V CURR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ‘Minimum selected input’ to -100 mA POTM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  'Minimum selected input' to 0% Configurable input limits, high: VOLT .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ‘Maximum selected input’ to 300 V CURR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ‘Maximum selected input’ to 100 mA POTM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  'Maximum selected input' to 100% Input limit low/high, error indication levels: UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  See tables on pages 15-16 DOWN  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  See tables on pages 15-16 ZERO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  See tables on pages 15-16 NONE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  See tables on pages 15-16 Hysteresis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.5% of ‘Max. input’ Error detection release delay  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   0.7...0.8 s 

## Output specifications 

## Common specifications current output: 

All standard and custom ranges can be selected as Direct or Inverted action or V-Function. 

Active / passive output range .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ±23 mA / 0...23 mA Programmable standard ranges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0...5, 1...5, 0...10, 2...10, 0...20, 4...20, S4-20 mA ±5, ±10, ±20 mA Custom configurable output range  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ±20 mA Min. span  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  4 mA Load, max.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ≤ 1000 Ω / ± 20 V @ ±20 mA Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ≤ 28 mA (unipolar) / ±28 mA (bipolar) Load stability .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0.001% of span / 100 Ω Response time, programmable. . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.0...60.0 s Output limitation at outside range  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  See tables on pages 15-16 Passive 2-wire mA: Programmable ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0...20 and 4...20 mA Direct or Inverted action External 2-wire loop supply  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  3.5...28.8 V 

## Voltage output specifications: 

All standard and custom ranges can be selected as Direct or Inverted action or V-Function. 

Programmable ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0/0.2...1, 0/1...5, 0/2...10, ±1, ±5 and ±10 V Direct or Inverted action Load, min . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  > 500 kΩ Response time, programmable. . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.0...60.0 s Output limitation at outside range  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  See tables on pages 15-16 Shunted voltage output: Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ± 1.2 V / ± 12 V Programmable standard ranges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0...1, 0...2.5, 0...5, 1...5, 0...10, 2...10 V ±1, ±2.5, ±5, ±10 V Custom configurable output range  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ±10 V Min. span  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.8 V Load, min. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  > 500 kΩ 

12 

Buffered voltage output: Signal range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ± 23 V Programmable standard ranges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  0...1, 0.2...1, 0...2.5, 0...5, 1...5, 0...10, 2...10, 0...20, 4...20 V ±1, ±2.5, ±5, ±10, ±20 V Custom configurable output range  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  ±20 V Min. span  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  0.8 V Current limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  < 50 mA Load, min. .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  > 2 kΩ Observed authority requirements: EMC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2014/30/EU LVD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2014/35/EU RoHS .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  2011/65/EU Approvals: c UL us, Standard for Safety  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  UL 508 / C22.2 No. 14 

13 

## Configurable input error indication and input limits 

## Configurable input error detection 

To increase system safety and integrity, users can program a high and low input error detection level. Input signals outside the selected error indication levels will cause the  output of the device to go to the programmed error state. The error is indicated in display line 1 as IN.ER and at the same time the backlight flashes. 

The two configurable input error detection levels can be set and enabled individually, just as it is possible to individually set the output error indication for each of the two detection levels. This allows users to differentiate process faults, broken input wires, etc. 

Available output error states for each of the two detection levels are: UP, DOWN, ZERO and NONE. 

Output error indication uses the error states defined by NAMUR NE43 for 4...20 mA output span, and for all other output spans equivalent output error indications are used (see tables on pages 15-16). 

Example - 4..20 mA output span and both high and low configurable input error limit enabled with output error indication set to ZERO: 

**==> picture [472 x 480] intentionally omitted <==**

**----- Start of picture text -----**<br>
Device Configurable input Configurable input Device<br>Min. input limit, low Normal measuring range limit, high Max. input<br>Extended measuring range<br>20.5 mA<br>20.0 mA<br>4.0 mA<br>3.8 mA<br>Error current Error current Input:<br>mA, mV etc.<br>Output error indication = ZERO<br>Output error current can be  Output error current can be<br>individually set to: individually set to:<br>ZERO:  0 mA  ZERO:  0 mA<br>UP:  23 mA  UP:  23 mA<br>DOWN:  3.5 mA  DOWN:  3.5 mA<br>DISABLED: No error indication, DISABLED: No error indication,<br> output limited to 3.8 mA  output limited to 20.5 mA<br>Example - Error indication set to NONE:<br>‘Min. selected ‘Max. selected<br>input’ - 15% Normal measuring range input’ + 15%<br>Extended measuring range<br>20.5 mA<br>20.0 mA<br>4.0 mA<br>3.8 mA<br>Input:<br>mA, mV etc.<br>Normal range<br>Extended working range<br>Normal range<br>Extended working range<br>**----- End of picture text -----**<br>


Example - Error indication set to NONE: 

Output error indication = NONE 

14 

Output limits and error indications – current output: 

||Input error indication<br>disabled|Input error indication<br>disabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|
|---|---|---|---|---|---|---|---|---|
|Output<br>span|Output limit<br>low|Output limit<br>high|Output limit<br>low|Output limit<br>high|Output error<br>indication,<br>UP|Output error<br>indication,<br>DOWN|Output error<br>indication,<br>ZERO|Output error<br>indication,<br>NONE|
|4...20 mA|0 mA|23 mA|3.8 mA|20.5 mA|23 mA|3.5 mA|0 mA|No error<br>indication|
|0...20 mA|0 mA|23 mA|0 mA|20.5 mA|23 mA|0 mA|0 mA|No error<br>indication|
|2...10 mA|0 mA|11.5 mA|0.195 mA|10.25 mA|11.5 mA|0 mA|0 mA|No error<br>indication|
|0...10 mA|0 mA|11.5 mA|0 mA|10.25 mA|11.5 mA|0 mA|0 mA|No error<br>indication|
|0...5 mA|0 mA|5.75 mA|0 mA|5.125 mA|5.75 mA|0 mA|0 mA|No error<br>indication|
|1...5 mA|0 mA|5.75 mA|0.975 mA|5.125 mA|5.75 mA|0.875 mA|0 mA|No error<br>indication|
|±5 mA|-5.75mA|5.75 mA|-5.125 mA|5.125 mA|5.75 mA|5.75 mA|0 mA|No error<br>indication|
|±10 mA|-11.5 mA|11.5 mA|-10.25 mA|10.25 mA|11.5 mA|-11.5 mA|0 mA|No error<br>indication|
|±20 mA|-23 mA|23 mA|-20.5 mA|20.5 mA|23 mA|-23 mA|0 mA|No error<br>indication|



Output limits and error indications – shunted voltage output: 

||Input error indication<br>disabled|Input error indication<br>disabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|
|---|---|---|---|---|---|---|---|---|
|Output<br>span|Output limit<br>low|Output limit<br>high|Output limit<br>low|Output limit<br>high|Output error<br>indication,<br>UP|Output error<br>indication,<br>DOWN|Output error<br>indication,<br>ZERO|Output error<br>indication,<br>NONE|
|0...1 V|0 V|1.15 V|0 V|1.025 V|1.15 V|0 V|0 V|No error<br>indication|
|0.2...1 V|0 V|1.15 V|0.195 V|1.025 V|1.15 V|0.175 V|0 V|No error<br>indication|
|0...5 V|0 V|5.75 V|0 V|5.125 V|5.75 V|0 V|0 V|No error<br>indication|
|1...5 V|0 V|5.75 V|0.975 V|5.125 V|5.75 V|0.875 V|0 V|No error<br>indication|
|0...10 V|0 V|11.5 V|0 V|10.25 V|11.5 V|0 V|0 V|No error<br>indication|
|2...10 V|0 V|11.5 V|1.95 V|10.25 V|11.5 V|1.75 V|0 V|No error<br>indication|
|±1 V|-1.15 V|1.15 V|-1.025 V|1.025 V|1.15 V|-1.15 V|0 V|No error<br>indication|
|±5 V|-5.75 V|5.75 V|-5.125 V|5.125 V|5.75 V|-5.75 V|0 V|No error<br>indication|
|±10 V|-11.5 V|11.5 V|-10.25 V|10.25 V|11.5 V|-11.5 V|0 V|No error<br>indication|



15 

Output limits and error indications – buffered voltage output: 

||Input error indication<br>disabled|Input error indication<br>disabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|
|---|---|---|---|---|---|---|---|---|
|Output<br>span|Output limit<br>low|Output limit<br>high|Output limit<br>low|Output limit<br>high|Output error<br>indication,<br>UP|Output error<br>indication,<br>DOWN|Output error<br>indication,<br>ZERO|Output error<br>indication,<br>NONE|
|0...1 V|0 V|1.15 V|0 V|1.025 V|1.15 V|0 V|0 V|No error<br>indication|
|0.2...1 V|0 V|1.15 V|0.195 V|1.025 V|1.15 V|0.175 V|0 V|No error<br>indication|
|0...2.5 V|0 V|2.875 V|0 V|2.5625 V|2.875 V|0 V|0 V|No error<br>indication|
|0...5 V|0 V|5.75 V|0 V|5.125 V|5.75 V|0 V|0 V|No error<br>indication|
|1...5 V|0 V|5.75 V|0.975 V|5.125 V|5.75 V|0.875 V|0 V|No error<br>indication|
|0...10 V|0 V|11.5 V|0 V|10.25 V|11.5 V|0 V|0 V|No error<br>indication|
|2...10 V|0 V|11.5 V|1.95 V|10.25 V|11.5 V|1.75 V|0 V|No error<br>indication|
|0...20 V|0 V|> 21 V|0 V|20.5 V|> 21 V|0 V|0 V|No error<br>indication|
|4... 20 V|0 V|> 21 V|3.8 V|20.5 V|> 21 V|3.5 V|0 V|No error<br>indication|
|±1 V|-1.15 V|1.15 V|-1.025 V|1.025 V|1.15 V|-1.15 V|0 V|No error<br>indication|
|±2.5 V|-2.875 V|2.875 V|-2.5625 V|2.5625 V|2.875 V|-2.875 V|0 V|No error<br>indication|
|±5 V|-5.75 V|5.75 V|-5.125 V|5.125 V|5.75 V|-5.75 V|0 V|No error<br>indication|
|±10 V|-11.5 V|11.5 V|-10.25 V|10.25 V|11.5 V|-11.5 V|0 V|No error<br>indication|
|±20 V|< -21 V|> 21 V|-20.5 V|20.5 V|> 21 V|< -21 V|0 V|No error<br>indication|



Output limits and error indications – custom outputs (applies to both voltage and current outputs): 

||Input error indication<br>disabled|Input error indication<br>disabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|Configurable input limits low or high enabled|
|---|---|---|---|---|---|---|---|---|
|Output<br>span|Output limit<br>low|Output limit<br>high|Output limit<br>low|Output limit<br>high|Output error<br>indication,<br>UP|Output error<br>indication,<br>DOWN|Output error<br>indication,<br>ZERO|Output error<br>indication,<br>NONE|
|Outputs<br>starting at<br>zero|0 V / 0 mA|‘Max.<br>output’*<br>115%|0 V / 0 mA|‘Max.<br>output’*<br>102.5%|‘Max.<br>output’*<br>115%|0 V / 0 mA|0 V / 0 mA|No error<br>indication|
|Offset<br>output<br>span *)|0 V / 0 mA|‘Max.<br>output’*<br>115%|‘Min.<br>output’*<br>95%|‘Max.<br>output’*<br>102.5%|‘Max.<br>output’*<br>115%|‘Min.<br>output’*<br>87.5%|0 V / 0 mA|No error<br>indication|
|Bipolar<br>output<br>span|‘Min.<br>output’*<br>115%|‘Max.<br>output’*<br>115%|‘Min.<br>output’*<br>102.5%|‘Max.<br>output’*<br>102.5%|‘Max.<br>output’*<br>115%|‘Min.<br>output’*<br>115%|0 V / 0 mA|No error<br>indication|



*) An output is considered offset if the span does not include zero or a zero crossing. 

16 

## Square root function 

The DRST-DC features the possibility of configuring a square root relationship between the input and output. 

It is possible to use the full square root relationship, or to select a fraction of the square root function, by manually choosing ‘Input min.’ and ‘input max.’ of the square root function, as shown in the figure below: 

**==> picture [428 x 230] intentionally omitted <==**

**----- Start of picture text -----**<br>
Output max. 1<br>0.8<br>√x<br>0.6<br>0.4<br>Output min.<br>0.2<br>Config. Config.<br>0 min. point max. point<br>0 0.2 0.4 0.6 0.8<br>Input x Input<br>min. max.<br>**----- End of picture text -----**<br>


## Low cut-off function: 

As a part of the square root function of the DRST-DC  is possible to manually configure a low cut-off point. The feature is often used to suppress noise in the system. 

The low cut off point defines a point where the input/output relationship either changes to a linear relationship or the output is truncated to zero. The two principles are illustrated below: 

## Linear cut-off: 

**==> picture [350 x 205] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.15 in_min<br>1.006<br>0.863<br>0.719<br>0.575<br>0<br>0.431 Input range<br>0<br>Low cut-off point<br>0.288<br>0.144<br>0<br>0 0.1<br>Input range<br>sqrt(x)<br>Output range<br>Output range<br>**----- End of picture text -----**<br>


17 

Truncation to zero: 

**==> picture [350 x 204] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.15 in_min<br>1.006<br>Fixed hysteresis:<br>0.5% of input<br>0.863 range<br>0.719<br>0.575<br>0<br>0.431 Input range<br>0<br>Low cut-off point<br>0.288<br>0.144<br>0<br>0 0.1<br>Input range<br>sqrt(x)<br>Output range<br>Output range<br>**----- End of picture text -----**<br>


|Configuration|Parameter|Specification|Condition|
|---|---|---|---|
|Low cut-off point|Linear cut-off|0.0 to 50.0% of<br>selected input range|Independent of square root<br>settings|
||Truncation to zero|0.0 to 50.0% of<br>selected input range<br>Fixed hysteresis of 0.5% of<br>the selected input range||



## Over range / under range operation: 

|Configuration|Parameter|Specification|Condition|
|---|---|---|---|
|Normal square root<br>action|Input low limit|‘Minimum of selected input<br>range’|‘Square root point max.‘<br>><br>‘Square root point min.‘|
||Input high limit|‘Maximum of selected input<br>range’ + 20%||
|Inverted square<br>root operation|Input low limit|‘Minimum of selected input<br>range’ – 20%|‘Square root point max.‘<br><<br>‘Square root point min.‘|
||Input high limit|‘Maximum of selected input<br>range’||



18 

## DRSL-DISPLAY & DRST-CM readout of input error detection and signal ”outside range” 

|DRSL-DISPLAY & DRST-CMreadout of input error detection and signal<br>”outside range”|DRSL-DISPLAY & DRST-CMreadout of input error detection and signal<br>”outside range”|DRSL-DISPLAY & DRST-CMreadout of input error detection and signal<br>”outside range”|DRSL-DISPLAY & DRST-CMreadout of input error detection and signal<br>”outside range”|
|---|---|---|---|
|Configurable input error detection - readout (IN.ER):||||
|Input|Range|Readout|Limit|
|CURR|All|IN.ER|See tables on pages 15-16|
|VOLT|All|IN.ER|See tables on pages 15-16|
|POTM|All|IN.ER|See tables on pages 15-16|



|Display readout at ”outside range” limits|Display readout at ”outside range” limits|Display readout at ”outside range” limits|Display readout at ”outside range” limits|Display readout at ”outside range” limits|Display readout at ”outside range” limits|
|---|---|---|---|---|---|
|Input|Range|||Readout|Limit|
|All|All|||IN.LO|Depending on input type|
|||||IN.HI|Depending on input type|
|||||||
|Display readout below min. / above max. (-1999, 9999):||||||
|Input|Range|||Readout|Limit|
|All|All|||-1999|Display readout <-1999|
|||||9999|Display readout >9999|
|||||||
|Readout at hardware error||||||
|Error search||Readout|Cause|||
|Check measurement of analog output||AO.ER|No load on the current output (only S4...20 mA)*|||
|Communications test between<br>DRSL-DISPLAYandDRST-DC||NO.CO|Connection error|||
|Configuration error||CO.ER|Default configuration is loaded|||
|Configuration error||CO.ER|Invalid configuration**|||
|Check that saved configuration inDRSL-<br>DISPLAYmatches device||TY.ER|Invalid type or rev. no.|||
|Hardware error||RA.ER|RAM error*|||
|Hardware error||AD.ER|A/D converter error*|||
|Hardware error||AO.SU|Analog output supply error*|||
|Hardware error||EF.ER|External flash error*|||
|Hardware error||IF.ER|Internal flash error*|||



||All error indications in the display flash once per second. The help text explains the error. If the error is an|
|---|---|
|!|input loop error, the display backlight flashes as well - this is acknowledged (stopped) by pushing the3|
||button.|
|*|Error is acknowledged by either stepping through the basic setup, or by resetting the device power.|
||Some types of errors can only be acknowledged by resetting the device power.|
|**|Error is acknowledged by stepping through the basic setup.|



19 

Connections 

## Supply 

31 32 33 

## Inputs: 

**==> picture [344 x 185] intentionally omitted <==**

**----- Start of picture text -----**<br>
3-wire current 3-wire voltage<br>Current 2-wire transmitter transmitter transmitter<br>41 42 43 44 41 42 43 44 41 42 43 44 41 42 43 44<br>QOOADW BQOOY BDYOA GOYAOPS<br>- + - Tx + - Tx + - Tx [+]<br>(±)<br>Voltage Potentiometer<br>41 42 43 44 41 42 43 44<br>COOMD BAAOOY<br>+ -<br>(±)<br>**----- End of picture text -----**<br>


## Outputs: 

**==> picture [345 x 190] intentionally omitted <==**

**----- Start of picture text -----**<br>
Current 2-wire transmitter<br>(Active output) (Passive output) Voltage, 1 V Voltage, 10 V<br>11 12 13 14 11 12 13 14 11 12 13 14 11 12 13 14<br>CAOS - mA + p mA an + 2OAD - V + AOOYP - V +<br>(±) - (±) (±)<br>Buffered voltage<br>11 12 13 14<br>2ZOAAS<br>- V +<br>(±)<br>**----- End of picture text -----**<br>


20 

Block diagram 

**==> picture [220 x 594] intentionally omitted <==**

**----- Start of picture text -----**<br>
mA<br>±<br>}<br>+ -<br>+ - + -<br>+ -<br>+ -<br>-<br>mA<br>+ V supply 3.5...28.8 V<br>2-wire<br>V<br>Buffered voltage<br>mA V<br>10 V 1 V<br>V<br>10 V 1 V<br>Current & voltage<br>21.6...253 VAC or 19.2...300 VDC<br>33 31 12 14 13 11<br>Buffer<br>D / A<br>Green<br>DRST-DC<br>HW CPU 1<br>Watchdog EEPROM<br>Red<br>2<br>CPU A/D<br>Vloop Vref.<br>44 43 42 41<br>+ -<br>± 100 mA<br>- +<br>+ - ± 300 V<br>2-wire<br>transmitter<br>(Current)<br>+ -<br>(Voltage)<br>3-wire<br>transmitter<br>meter + -<br>Potentio-<br>    <br>**----- End of picture text -----**<br>


21 

## Configuration / operating the function keys 

Documentation for routing diagram. 

## In general 

When configuring the DRST-DC, you will be guided through all parameters and you can choose the settings which fit the application. For each menu there is a scrolling help text which is automatically shown in line 3 on the display. 

Configuration is carried out by use of the 3 function keys: 

   - 1 will increase the numerical value or choose the next parameter 

   - 2 will decrease the numerical value or choose the previous parameter 

- 3 will save the chosen value and proceed to the next menu 

- When configuration is completed, the display will return to the default state 1.0. Pressing and holding 3 will return to the previous menu or return to the default state (1.0) without saving the changed values or parameters. 

If no key is activated for 1 minute, the display will return to the default state (1.0) without saving the changed values or parameters. 

## Further explanations 

Password protection: Programming access can be blocked by assigning a password. The password is saved in the device in order to ensure a high degree of protection against unauthorised modifications to the configuration. Default password 2008 allows access to all configuration menus. 

## Signal error indication via display front DRSL-DISPLAY & DRST-CM 

Signal error is displayed as LO.ER (see table page 19). Input signals outside the selected range are displayed as IN.LO indicating low input signal or IN.HI indicating high input signal (see table page 19). Error indication is displayed in line 1 as text and at the same time the backlight flashes. A flashing bullet in line 4 is indicating correct functioning of DRSL-DISPLAY & DRST-CM. 

## Signal error indication without display front 

Status of the unit can also be read from the red/green LED in the front of the device. 

Green flashing LED 13 Hz indicates normal operation. Green flashing LED 1 Hz indicates configurable input limit error. Steady green LED indicates internal error. Steady red LED indicates fatal error. 

## Advanced functions 

The unit gives access to a number of advanced functions which can be reached by answering “Yes” to the point “ADV.SET”. 

Memory (MEM): In the memory menu you can save the configuration of the device in the DRSL-DISPLAY & DRST-CM, and then move the DRSL-DISPLAY & DRST-CM onto another device of the same type and download the configuration in the new device. 

Display setup (DISP): Here you can adjust the brightness contrast and the backlight. Setup of TAG numbers with 6 alphanumerics. Selection of functional readout in line 3 of the display - choose between readout of analogue output or tag no. 

Two-point process calibration (CAL): The device can be process-calibrated in 2 points to fit a given input signal . A low input signal (not necessarily 0%) is applied and the actual value is entered via DRSL-DISPLAY & DRST-CM. Then a high signal (not necessarily 100%) is applied and the actual value is entered via DRSL-DISPLAY & DRST-CM. If you accept to use the calibration, the device will work according to this new adjustment. If you later reject this menu point or choose another type of input signal the device will return to factory calibration. 

Process simulation function (SIM): In the menu point “EN.SIM” it is possible to simulate an input signal by means of the arrow keys and thus control the output signal up or down. You must exit the menu by pressing 3 (no time-out). The simulation function exits automatically, if the DRSL-DISPLAY & DRST-CM is detached. 

Password (PASS): Here you can choose a password between 0000 and 9999 in order to protect the unit against unauthorized modifications to the configuration. The unit is delivered default without password. 

22 

Language (LANG): In the menu ”LANG” you can choose between 7 different language versions of help texts that will appear in the menu. You can choose between UK, DE, FR, IT, ES, SE and DK. 

Output function (OFUN): Here the output characteristics can be set to either Direct (DIR) or Inverted (INV) function. Output type and range are set in the normal programming menu. If the selected output range is starting at zero, V-curved output function (VFUN) can also be selected. The output characteristics will then be 100-0-100% on the basis of a linear 0-100% input signal. 

Square root and low cut-off function (IFUN): Here it is possible to choose a square root relationship between input and output and decide which section of the square root function that has to be used. The function includes a low cut-off point for limiting "small" input signals. Cut-off type and cut-off value are also selected in this menu point. 

## Auto diagnostics 

The device performs an advanced auto diagnosis of the internal circuits - check tables on page 19. 

23 

## Routing diagram 

If no key is activated for 1 minute, the display will return to the default state 1.0 without saving configuration changes. 1 Increase value / choose next parameter 

- 2 Decrease value / choose previous parameter 

- 3 Save the chosen value and proceed to the next menu 

Hold 3 Back to previous menu / return to menu 1.0 without saving. 

**==> picture [528 x 459] intentionally omitted <==**

**----- Start of picture text -----**<br>
-/+100 4-20<br>-/+50 0-20<br>Power up -/+20 1-5<br>POTM -/+10 0-5<br>0 NO VOLT -/+5 0-1 99.9 100.0<br>9999 YES CURR -/+1 CUST -100.0 -99.9<br>40.0 1 2 1 2 1 2 1 2 1 2 1 2<br>% 3 Correct  No CURR<br>0 3 NO 3 CURR 3 4-20 3 -100.0 3 100.0 3<br>10.4 mA PASSW. ADV.SET IN TYPE I.RANGE IN.LO IN.HI<br>Txt 1 Txt 2 Txt 3 Txt 4 Txt 48 Txt 49<br>*0 *1 Yes *7 *11 *7 *9 *11<br>12<br>1 and 2 held:<br>Toggle line 3 function<br>A.Out / TAG.<br>(Setting is volatile - use<br>DISP setup menu to<br>change and store line 3<br>function). -/+300 2-10<br>-/+100 0-10<br>-/+10 1-5<br>-/+5 0-5<br>-/+2.5 0-2.5<br>-/+1 0.2-1<br>-/+0.1 0-1<br>0-300 0-0.1<br>0-100 CUST<br>1 2<br>VOLT<br>3 0-10 3<br>V.RANGE<br>Txt 5<br>POTM<br>3 --- 3<br>---<br>---<br>**----- End of picture text -----**<br>


**==> picture [505 x 159] intentionally omitted <==**

**----- Start of picture text -----**<br>
NO<br>YES<br>1 2<br>YES 3<br>Continued on the page<br>ADV.SET<br>Routing diagram ADV.SET<br>Txt 2<br>*0 Default state. *7 Only displayed if  CUST input range or POTM  *11 Limits are dependent on input type:<br>Line 1 shows the scaled process value - OK or error.  is selected.  CURR limits are: ±100.0<br>Line 2 shows the selected engineering unit. This menu will change range automatically. VOLT limits are: ±300<br>Line 3 shows analogue output or TAG no. POTM limits are: 0 and 100.0<br>Line 4 shows status for communication and signal trending.<br>*1 Only displayed if password is enabled. *9 Value will be forced to be greater than xx.LO.<br>**----- End of picture text -----**<br>


24 

|[blank]<br>:<br>:<br>%<br>@F<br>@C<br>(69 units)|[blank]<br>:<br>:<br>%<br>@F<br>@C<br>(69 units)|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|111.1<br>11.11<br>1.111<br>1111<br>9999<br>-1999<br>9999<br>-1999|~~3~~<br>C|ontinued on the next page|
|---|---|---|---|---|---|---|---|---|---|
|||111.1<br>11.11<br>1.111<br>1111||||||||
|||||9999<br>-1999||9999<br>-1999||||
|~~1~~|~~2~~<br>~~1~~||~~2~~<br>~~1~~||~~2~~<br>~~1~~||~~2~~|||
|UNIT||11.11||4.00||20.00||||
|mA||DEC.P||DISP.LO||DISP.HI||||
|Txt 6||Txt 7||Txt 8||Txt 9||||
|||||||||||
|@C<br>@F<br>%<br>A<br>bar<br>cm<br>ft<br>ft/h<br>ft/min<br>ft/s<br>g<br>gal/h<br>gal/min<br>GW<br>hp<br>hPa<br>Hz<br>in<br>in/h<br>in/min<br>in/s<br>ips<br>K<br>kA<br>kg<br>kJ<br>kPa<br>kV<br>kW<br>kWh<br>l<br>l/h<br>l/min<br>l/s<br>m<br>m/h<br>m/min<br>m/s<br>m/s2<br>m3<br>m3/h<br>m3/min<br>mA<br>mbar<br>mils<br>min<br>mm<br>mm/s<br>mol<br>Mpa<br>mV<br>MW<br>MWh<br>N<br>Ohm<br>Pa<br>pH<br>rpm<br>s<br>S<br>t<br>t/h<br>uA<br>um<br>uS<br>V<br>W<br>Wh<br>yd<br>[blank]<br>SelectableUNITS:||||||||||



|||||||
|---|---|---|---|---|---|
|||SelectableUNITS:||||
|@C||hp|kW|mA|pH|
|@F||hPa|kWh|mbar|rpm|
||%|Hz|l|mils|s|
||A|in|l/h|min|S|
|bar||in/h|l/min|mm|t|
|cm||in/min|l/s|mm/s|t/h|
|ft||in/s|m|mol|uA|
|ft/h||ips|m/h|Mpa|um|
|ft/min||K|m/min|mV|uS|
|ft/s||kA|m/s|MW|V|
||g|kg|m/s2|MWh|W|
|gal/h||kJ|m3|N|Wh|
|gal/min||kPa|m3/h|Ohm|yd|
|GW||kV|m3/min|Pa|[blank]|



25 

**==> picture [399 x 476] intentionally omitted <==**

**----- Start of picture text -----**<br>
-/+20 2-10<br>-/+10 0-10<br>-/+5 1-5<br>S4-20 0-5<br>CURR PASS 4-20 CUST 19.9 20.0<br>VOLT ACTI 0-20 -20.0 -19.9<br>1 2 1 2 1 2 1 2 1 2<br>CURR<br>CURR 3 ACTI 3 4-20 3 -20.0 3 20.0 3<br>ANA.OUT OUT.MOD O.RANGE OUT.LO OUT.HI<br>Txt 10 Txt 13 Txt 11 Txt 50 Txt 51<br>*2 *2 *8 *2 *8 *9<br>-/+20 2-10<br>-/+10 0-10<br>-/+5 1-5<br>-/+2.5 0-5<br>-/+1 0-2.5<br>4-20 0.2-1<br>VSHU 0-20 0-1 19.9 20.0<br>VBUF CUST -20.0 -19.9<br>1 2 1 2 1 2 1 2<br>VOLT VBUF<br>3 VBUF 3 0-10 3 -20.0 3 20.0 3<br>OUT.MOD O.RANGE OUT.LO OUT.HI<br>Txt 52 Txt 12 Txt 50 Txt 51<br>*8 *12 *8 *9 *12<br>-/+10 1-5<br>-/+5 0-5<br>-/+1 0.2-1<br>2-10 0-1<br>0-10 CUST<br>1 2<br>VSHU<br>3 0-10 3<br>O.RANGE<br>Txt 12<br>**----- End of picture text -----**<br>


- _*2_ If passive is selected, the values are limited to only positive span. 

   - _*9_ Value will be forced to be greater than xx.LO. 

- _*8_ Only displayed if CUST output range is selected. This menu will change range automatically. 

- _*12_ Limits are dependent on output type: VBUF limits are: ±20.0 VSHU limits are: ±10.0 

26 

**==> picture [520 x 134] intentionally omitted <==**

**----- Start of picture text -----**<br>
NONE NONE<br>UP UP<br>YES 4.00 ZERO YES 100.00 ZERO 60.0<br>NO -100.0 DOWN NO 20.00 DOWN 0.0<br>1 2 1 2 1 2 1 2 1 2 1 2 1 2<br>YES 3 3.80 3 UP 3 YES 3 20.5 3 UP 3 0.0 3<br>ILIM.L mA OUT.ERR ILIM.H mA OUT.ERR RESP.<br>Txt 58 Txt 59 Txt 14 Txt 60 Txt 61 Txt 14 Txt 15<br>*14 *15 *17 *14 *16 *17<br>NO NO<br>To default state<br>1.0<br>**----- End of picture text -----**<br>


- _*14_ Selectable in engineering units, i.e. Volt (V), Current (mA) or _*16_ Limits are dependent on input type and the selected input Potentiometer (%). range: Low Limit: Maximum input' High limit, CURR: 100.0 mA 

- _*15_ Limits are dependent on input type and the selected input High limit, VOLT: 300 V High limit, POTM: 100.0 % 

- range: High Limit: 'Minimum input' Low limit, CURR: -100.0 mA Low limit, VOLT:  -300 V _*17_ If the selected input range is changed to 4...20 mA the Low limit, POTM: 0 % configurable limits are initially set to the following: Range limit, Low 3.6 mA Range limit, High 21 mA 

27 

## Routing diagram, advanced settings (ADV.SET) 

**==> picture [562 x 502] intentionally omitted <==**

**----- Start of picture text -----**<br>
MEM, DISP,<br>CAL, SIM,<br>PASS, LANG, SAVE<br>OFUN, IFUN LOAD<br>1 2 1 2<br>MEM 3 SAVE 3<br>SETUP MEMORY<br>Txt 16/1 Txt 17<br>9 9 9 TAG<br>0 0 A A.OUT<br>1 2 1 2 1 2 1 2<br>DISP 3 3 3 9 3 3 A.OUT 3<br>SETUP CONTRA LIGHT TAGNO_ LINE 3<br>Txt 16/2 Txt 18 Txt 19 Txt 20 Txt 21<br>YES 20.00 YES 20.00 YES<br>NO 4.00 NO 4.00 NO<br>1 2 1 2 1 2 1 2 1 2<br>To default state<br>CAL 3 NO 3 4.00 3 NO 3 16.00 3 NO 3 1.0<br>SETUP CAL.LO mA CAL.HI mA USE.CAL<br>Txt 16/3 Txt 22 Txt 23 Txt 24 Txt 25 Txt 26<br>*5 *5<br>NO NO<br>YES 20.00<br>NO 4.00<br>1 2 1 2<br>SIM 3 NO 3 12.0 3<br>SETUP ENA.SIM mA<br>Txt 16/4 Txt 27 Txt 28 In the sub-menu simulation (SIM) you must press 3 or remove the<br>*5 DRSL-DISPLAY & DRST-CM to return to the default state 1.0.<br>NO<br>YES 9999<br>NO 0<br>1 2 1 2<br>PASS 3 NO 3 0 3<br>SETUP EN.PASS NEW.PAS<br>Txt 16/5 Txt 29 Txt 30<br>NO<br>**----- End of picture text -----**<br>


Continued on the next page 

_*5_ Selectable range as defined by DEC.P, DISP.LO and DISP.HI. 

28 

**==> picture [524 x 329] intentionally omitted <==**

**----- Start of picture text -----**<br>
DE, DK, ES, FR,<br>IT, SE, UK<br>1 2<br>LANG 3 UK 3<br>SETUP LANGUA.<br>Txt 16/6 Txt 31<br>VFUN<br>INV<br>DIR<br>1 2<br>OFUN 3 DIR 3<br>To default state<br>SETUP O.FUNC 1.0<br>Txt 16/7 Txt 32<br>ZERO<br>LIN 0.000 0.000 LIN 0.0<br>SQRT 1.000 1.000 NONE 50.0<br>1 2 1 2 1 2 1 2 1 2<br>IFUN 3 LIN 3 0.000 3 1.000 3 ZERO 3 5.0 3<br>SETUP I.FUNC SQRT.LO SQRT.HI CUT.TYP LO.CUT<br>Txt 16/8 Txt 55 Txt 53 Txt 54 Txt 56 Txt 57<br>*10 *10 *10 *13<br>**----- End of picture text -----**<br>


- _*10_ Only displayed if SQRT is selected! SQRT.LO and SQRT.HI must not be equal. 

- _*13_ Only shown if CUT.TYP is NOT set to NONE. 

29 

## Help text overview 

[1] Set correct password Select -1...1 V output range [2] Enter advanced setup menu? Select 4...20 V output range [3] Select current input Select 0...20 V output range Select voltage input Select 2...10 V output range Select potmeter input Select 0...10 V output range [4] Select -100...100 mA input range Select 1...5 V output range Select -50...50 mA input range Select 0...5 V output range Select -20...20 mA input range Select 0...2.5 V output range Select -10...10 mA input range Select 0.2...1 V output range Select -5...5 mA input range Select 0...1 V output range Select -1...1 mA input range Select custom voltage output range Select 4...20 mA input range [13] Select active output mode Select 0...20 mA input range Select passive output mode Select 1...5 mA input range [14] Select downscale at error Select 0...5 mA input range Select zero output at error Select 0...1 mA input range Select upscale at error Select custom current input range Select no error action - output undefined at error [5] Select -300...300 V input range [15] Set analog output response time in seconds Select -100...100 V input range [16] Select analog output function Select -10...10 V input range Enter Language setup Select -5...5 V input range Enter Password setup Select -2.5...2.5 V input range Enter Simulation  mode Select -1...1 V input range Perform Process calibration Select -100...100 mV input range Enter Display setup Select 0...300 V input range Perform Memory operations Select 0...100 V input range Select analog input function Select 2...10 V input range [17] Load saved configuration into module Select 0...10 V input range Save configuration in display front Select 1...5 V input range [18] Adjust LCD contrast Select 0...5 V input range [19] Adjust LCD backlight Select 0...2.5 V input range [20] Write a 6-character device TAG Select 0.2...1 V input range [21] Analog output value is shown in display line 3 Select 0...1 V input range Device TAG is shown in display line 3 Select 0...100 mV input range [22] Calibrate Input low to process value? Select custom voltage input range [23] Set value for low calibration point [6] Select display unit [24] Calibrate Input high to process value? [7] Select decimal point position [25] Set value for high calibration point [8] Set display range low [26] Use process calibration values? [9] Set display range high [27] Enable simulation mode? [10] Select current as analog output type [28] Set the input simulation value Select voltage as analog output type [29] Enable password protection? [11] Select -20...20 mA output range [30] Set new password Select -10...10 mA output range [31] Select language Select -5...5 mA output range [32] Select direct output mode Select 4...20 mA output range with safety readback Select inverted output mode Select 4...20 mA output range Select V-function output mode Select 0...20 mA output range [33] Display underrange Select 2...10 mA output range [34] Display overrange Select 0...10 mA output range [35] Input underrange Select 1...5 mA output range [36] Input overrange Select 0...5 mA output range [37] Analog output supply error Select custom current output range [38] Analog output error - check output connections and [12] Select -20...20 V output range reset power Select -10...10 V output range [39] Configuration error - default configuration is loaded Select -5...5 V output range [40] RAM memory error Select -2.5...2.5 V output range [41] Invalid configuration 

30 

[42] A/D converter error 

- [43] No communication 

- [44] Input range limit error - Input outside configurable input range limit 

- [45] Invalid configuration type or version [46] External flash error [47] Internal flash error [48] Set input range low [49] Set input range high [50] Set output range low [51] Set output range high [52] Select buffered voltage output Select shunted voltage output 

- [53] Select low value of square root [54] Select high value of square root [55] Select linear input function Select square root input function 

- [56] Set low cut-off type to zero Set low cut-off type to linear Disable low cut-off 

- [57] Select low cut-off point in % of input range [58] Enable configurable input error limit, low [59] Set configurable input limit, low [60] Enable configurable input error limit, high [61] Set configurable input limit, high 

31 

## **WARRANTY/DISCLAIMER** 

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of **13 months** from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to the normal **one (1) year product warranty** to cover handling and shipping time. This ensures that OMEGA’s customers receive maximum coverage on each product. 

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are not limited to contact points, fuses, and triacs. 

**OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of OMEGA with respect to this order, whether based on contract, warranty, negligence, indemnification, strict liability or otherwise, shall not exceed the purchase price of the component upon which liability is based. In no event shall OMEGA be liable for consequential, incidental or special damages.** 

CONDITIONS:  Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a manner. 

## **RETURN REQUESTS/INQUIRIES** 

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return package and on any correspondence. 

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent breakage in transit. 

FOR **WARRANTY** RETURNS, please have the following information available BEFORE contacting OMEGA: 

1. Purchase Order number under which the product was PURCHASED, 

2. Model and serial number of the product under warranty, and 

3. Repair instructions and/or specific problems relative to the product. 

- FOR **NON-WARRANTY** REPAIRS, consult OMEGA for current repair charges. Have the following information available BEFORE contacting OMEGA: 

1. Purchase Order number to cover the COST of the repair, 

2. Model and serial number of the product, and 

3. Repair instructions and/or specific problems relative to the product. 

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our customers the latest in technology and engineering. 

OMEGA is a trademark of OMEGA ENGINEERING, INC. 

© Copyright 2018 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC. 

# **Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course!** _**Shop online at omega.com**_ 

## **TEMPERATURE** 

MU  Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies MU  Wire: Thermocouple, RTD & Thermistor MU  Calibrators & Ice Point References MU  Recorders, Controllers & Process Monitors MU  Infrared Pyrometers 

## **PRESSURE, STRAIN AND FORCE** 

MU  Transducers & Strain Gages MU  Load Cells & Pressure Gages MU  Displacement Transducers MU  Instrumentation & Accessories 

## **FLOW/LEVEL** 

MU  Rotameters, Gas Mass Flowmeters & Flow Computers MU  Air Velocity Indicators MU  Turbine/Paddlewheel Systems MU  Totalizers & Batch Controllers 

## **pH/CONDUCTIVITY** 

MU  pH Electrodes, Testers & Accessories MU  Benchtop/Laboratory Meters MU  Controllers, Calibrators, Simulators & Pumps MU  Industrial pH & Conductivity Equipment 

## **DATA ACQUISITION** 

MU Communications-Based Acquisition Systems MU Data Logging Systems MU Wireless Sensors, Transmitters, & Receivers MU Signal Conditioners MU Data Acquisition Software 

## **HEATERS** 

MU  Heating Cable MU  Cartridge & Strip Heaters MU  Immersion & Band Heaters MU  Flexible Heaters MU  Laboratory Heaters 

## **ENVIRONMENTAL MONITORING AND CONTROL** 

MU  Metering & Control Instrumentation MU  Refractometers MU  Pumps & Tubing MU  Air, Soil & Water Monitors MU  Industrial Water & Wastewater Treatment MU  pH, Conductivity & Dissolved Oxygen Instruments 

M5723/1118 



## Links

- [View this product on Novapart](https://novapart.co/products/DRST-DC/signal-converter-current-voltage-1-channels-005)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/omega/drst-dc/signal-conditioner-300vdc-din/dp/4199597)
---

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