SEM1720

SEM1720 DUAL CHANNEL CONDITIONER FOR TEMPERATURE SENSORS 

- **TWO RTD, THERMOCOUPLE OR POTENTIOMETER** 

- > ~~[a]~~ **ISOLATED mA or VOLTAGE OUTPUTS** 

   - **ISOLATED UNIVERSAL AC/DC POWER SUPPLY** 

**MATHS AND PROFILING TOOLS IN SOFTWARE** 

- **DIRECT USB CONFIGURATION** 

- ~~FS~~ **INTRODUCTION** 

SEM1720 is a dual channel signal conditioner designed to accept RTD, Thermocouple or Potentiometer sensors and provide isolated, industrial process output signals in mA or Volts. Each output channel may be linked to either an input sensor or to a maths function of both sensor signals. This powerful feature allows the device to operate in several different modes. 

The output signal can also be adjusted over the full working ranges (0 to 20) mA or (0 to 10) V, to provide common or custom process signals, examples (4 to 20) mA, (0 to 1) mA, (1 to 5) V. 

SEM1720 is configured using the free software that allows the user to configure the device without requiring calibration equipment. Maths functions on each channel can be set up using the software as well as a 22-segment profile tool. Input/output simulation tools for diagnostic purposes are also available. 

## **FEATURE HIGHLIGHTS** 

## **FLEXIBLE** 

The SEM1720, with its wide range of temperature input options (including potentiometer and mV ranges), with comparison functions between channels, paired with the configuration functionality it has to offer, is a flexible and versatile tool for many varied temperature applications. Live readings can be displayed to a PC via the configuration software. 

## **UNIVERSAL SUPPLY** 

Supply: From 20 VDC to 240 VAC and everything in-between, the auto-detecting power supply is simple but effective, giving the SEM1720 the capability to be powered from a variety of supplies. 

## **MULTIPLE CONFIGURATIONS** 

The device offers the user eight programable pre-set configuration set-ups, selected by removing the front panel and setting a three-position switch. This allows the user to store configurations in the device rather than programme the device on-site. 

D2571-01-06, Page 1 of 5 

SEM1720 DUAL CHANNEL CONDITIONER FOR TEMPERATURE SENSORS 

|**RTD SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|**RTD SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|**RTD SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|
|---|---|---|
|**Type RTD**|**Range**|**Accuracy/Stability/Notes**|
|Pt100~0.00385 (IEC)|(-200 to 850)°C (-320 to 1560)°F|1 Reading/Second<br>± 0.15 °C + (0.05 % of FSR)|
|Pt100~0.00391 (IPTS-68)|(-200 to 630) °C (-320 to 1160) °F||
|<br>Pt100~0.00392 (IPTS-68)|||
|Pt100~0.00393 (ITS-90)|(-200 to 960)°C (-320 to 1760)°F||
|<br>Ni 100~0.00618 (DIN)|<br>(-60 to 180)°C (-76 to 320)°F||
|<br>Ni120~0.00672 (Nickel A)|<br>(-80 to 260) °C (-112 to 460) °F||
|<br>Cu100~0.00427|||
|Cu 53 (GOST)|(-50 to 180)°C (-58 to 320)°F||
|RTDConnection||2or3 wire|
|RTD LeadResistance||20ΩMaximum|
|RTD Lead effect||0.015°C/ Ω|
|FSR = Full Scalerange|||
|Temperature stability overtherange (-10 to 50)°C ±0.015 %FSR / °C|||



|**THERMOCOUPLE SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|**THERMOCOUPLE SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|**THERMOCOUPLE SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|**THERMOCOUPLE SENSOR INPUTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)**|
|---|---|---|---|
|**Type**|**Range**|**Stability**|**Accuracy/Notes**|
|K|(-200 to 1370)°C (-320 to 2498)°F|±0.05 °C/°C|1 Reading/Second<br>± 0.5 °C + (0.1 % of FSR)|
|J|(-200 to 1200)°C (-320 to 2190)°F|||
|E|(-200 to 1000)°C (-320 to 1832)°F|||
|N|(-180 to 1300)°C (-292 to 2372)°F|±0.08°C/°C||
|T|<br>(-200 to 400)°C (-320 to 750)°F|±0.15°C/°C||
|R***1 *2**|<br>(-10 to 1760) °C (-148 to 3200) °F|±0.10 °C/°C||
|S***1 *2**||||
|L|(-100 to 600)°C (-148 to 1100)°F|±0.08°C/°C||
|B|(0 to 1600)°C (32 to 3000)°F|±0.10°C/°C||
|U|(0 to 600)°C (32 to 1100)°F|±0.08°C/°C||
|C(W5)***2**|(0 to 2300) °C (32 to 4200) °F|±0.05 °C/°C||
|D(W3)***2**||||
|G(W)***2**||||
|||||
|Impedance (Thermocouple)|||1MΩ|
|OpenCircuit sensorbias|||0.2uA|
|Cold junctionautomatic tracking (-20 to70)°C||± 0.05°C|± 0.5°C|
|FSR = Full ScaleRange||||
|***1** Only overtherange (800 to1600)°C,***2**Cold junctiontrackingrange (0 to70)°C||||



|**PROCESS INPUTSSPECIFICATIONS @20°C**|**PROCESS INPUTSSPECIFICATIONS @20°C**|**PROCESS INPUTSSPECIFICATIONS @20°C**|**PROCESS INPUTSSPECIFICATIONS @20°C**|
|---|---|---|---|
|**Type**|**Range**|**Stability**|**Accuracy**|
|mV|±200 mV(Max ± 230 mV)|± 0.04 % FSR/°C|±0.1% of FSR|
|Potentiometer***1**|(0 to 100) % of pot travel|± 0.05 %/°C||
|FSR = Full Scalerange||||
|*1(0 to1)KOhm minimum; (0 to100)KOhm maximum||||



D2571-01-06, Page 2 of 5 

SEM1720 DUAL CHANNEL CONDITIONER FOR TEMPERATURE SENSORS 

|**OUTPUT ANALOGUE mA CURRENTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|**OUTPUT ANALOGUE mA CURRENTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|**OUTPUT ANALOGUE mA CURRENTSPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|
|---|---|---|
|**Type/Function**|**Range/Description**|**Accuracy/Notes**|
|Two wire current<br>Sink or source|(0 to 20) mA<br>(4 to 20) mA<br>User mA, any within full range|(mA output /2000) or 5 uA (Whichever is<br>the greater)|
|Calibration Accuracy||± 5 uA|
|Supplyinsink mode|(11to 30) VDC,24Vnominal|SLEV|
|Maximum load current source|(0 to 20) mA|Maximumload 550Ω|
|Maximum load current sink|Supply voltage @24 Vdc|Maximumload 650Ω|
|Response time|<500ms toreach95 % of final value; Start-up time<3 s||
|Loop voltage effect||Loopripple 0.03 % of FSR;|
|Supply sensitivity|Supplyripplerejection <± 5 uAerror@1Vrms 50Hz ripple||
|Protection|Reverse connection and over-voltage protection. Maximum over-voltage<br>current100mA||
|Current OutputDamping|Programmablerise andfall (0 to250) seconds,fora (0 to20)mAswing.||
|Thermal stability|Zero at 20°C|±2uA/°C typically|
|The mA output range can be set to anywhere within the maximum capability|||



|**OUTPUT ANALOGUE VOLTAGESPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|**OUTPUT ANALOGUE VOLTAGESPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|**OUTPUT ANALOGUE VOLTAGESPECIFICATIONS @20°C**<br>**(Channels 1& 2)  **|
|---|---|---|
|**Type/Function**|**Range/Description**|**Accuracy/Stability/Notes**|
|Two wire voltage|(0 to 10) VDC<br>User V, any within full range|± 5 mV|
|Calibration Accuracy||± 5mV|
|Maximum output||10.1VDC|
|Min Load|10KΩUserConfigurable correction for Load||
|Response time|<500ms toreach95 % of final value; Start-up time<3 s||
|Current drive||±2 mA,minimumload 5KΩ@10 VDC|
|Thermal stability|Zero at 20°C|±1 mV/°C|
|Voltage generated across 500Ω resistor|||
|The voltage output range can be set to anywhere within the maximum capability|||



## **USB CONFIGURATION USER INTERFACE** 

|**USB CONFIGURATION USER INTERFACE**|**USB CONFIGURATION USER INTERFACE**|**USB CONFIGURATION USER INTERFACE**|**USB CONFIGURATION USER INTERFACE**|
|---|---|---|---|
||**Type/Options/Function**|**Description**|**Notes**|
||Configuration hardware|USB mini B|Cable not included|
||Configuration software|USBSpeedLink|Download www.status.co.uk|
||Operating system|Microsoft Windows|Windows 7 or later|



D2571-01-06, Page 3 of 5 

SEM1720 DUAL CHANNEL CONDITIONER FOR TEMPERATURE SENSORS 

|**USB CONFIGURATION USER INTERFACE**<br>**(Channels 1& 2)  **|**USB CONFIGURATION USER INTERFACE**<br>**(Channels 1& 2)  **|**USB CONFIGURATION USER INTERFACE**<br>**(Channels 1& 2)  **|
|---|---|---|
|**Type/Options/Function**|**Description**|**Notes**|
|Configuration: basic or<br>advanced|Select mode on<br>connectiontoinstrument|Some options only available in advanced mode|
|Input Type<br>Scale|High, low|RTD list, T/C list, mV, Slide wire<br>Any within range|
|Output configuration<br>Type<br>Scale<br>Fixed output<br>Error signal<br>Load correction<br>Output dampingmA, V|Output signal<br>High, low<br>For diagnostics<br>Up, down, user<br>For voltage output<br>Rise/fallfor fullrange|mA, V<br>mA, V any value within output range<br>mA, V any value within output range<br>User = any value within output range<br>In ohms<br>(0 to250) s|
|Maths functions<br>Profile tool (interpolation)<br>Output source selection|Derived from CH1, CH2<br>Probe fail options<br>CH1, CH2<br>CH1, CH2|A+B, average, track (high or low)<br>On fail swap input, on fail go to setpoint<br>Up to 22 segments X, Y data<br>Comparisonoptions|
|Live data|Input Signal<br>Output signal<br>Cold junction<br>Record live data<br>Store configurationtoPC|Value<br>mA, V value<br>°C<br>Save data to CSV file<br>Save data tofile|
|Multiple configurations|Eight configurations can be saved to the instrument. Select by using the<br>DIPswitchbehindfront cover||
|Otherdevice options|Tagnumber|20 Characters|



|**GENERAL**||
|---|---|
|**Function**|**Description**|
|Power supply|(20 to240) VDC SELV, (20 to240) VAC 50/60Hz|
|Power|3 Wmax|
|Protection|Internalfuse, over-voltage, external protection recommended|
|Galvanic Isolation Supply to<br>I/Pand O/Pports|4000 VDC test, 253 VAC working|
|Galvanic Isolation I/P to O/P|3750 VDC test, 250 VAC working|
|||
|Start-up time|4 s|
|Response time|200ms|
|Indication (State LED)|Green = OK<br>Red= input/output/configurationerror indication|
|Note|USBterminal shares the same GNDas CH1output|



## **MECHANICAL** 

|**MECHANICAL**|**MECHANICAL**|**MECHANICAL**|
|---|---|---|
||**Function**|**Description**|
||Dimensions|120 mm (from back of rail) x 22.5 mm wide x 106 mm high|
||Enclosure colour|Grey|
||Material|BlendPC/ABS self-extinguishing|
||Connections|Two-part screw connectorsforpower,inputs, outputs|
||Weight|145 g approximate|
||Rail mount|DIN 60715|



D2571-01-06, Page 4 of 5 

SEM1720 DUAL CHANNEL CONDITIONER FOR TEMPERATURE SENSORS 

## **ENVIRONMENTAL** 

**Function Description** Ambient temperature Operating/Storage (-30 to 70) °C Ambient Humidity Operating/Storage (10 to 90) %RH non-condensing Protection requirement Device must be installed in an enclosure offering >IP65 Protection USB configuration ambient (10 to 30) °C 

## **APPROVALS** 

EMC BS EN 61326: Note - Sensor input wires to be less than 30 m to comply Electrical Safety BS EN 61010-1 Ingress protection BS EN 60529 RoHS Directive 2011/65/EU 

## **MECHANICAL** 

## **ORDER CODE** 

## **SEM1720** 

## **ACCESSORIES** 

USB configuration software USBSpeedLink free of charge from www.status.co.uk Loop powered display Refer to www.status.co.uk 48-200-0001-01 Standard USB A to USB mini B cable for configuration 

To maintain full accuracy, annual calibration is required. Contact support@status.co.uk for details The data in this document is subject to change. Status Instruments Ltd. assumes no responsibility for errors 

Status Instruments Ltd Tel: +44 (0)1684 296818 Status Business Park Fax: +44 (0)1684 293746 Gannaway Lane, Tewkesbury Email: sales@status.co.uk Gloucestershire, UK ~~STATUS~~ Website: www.status.co.uk GL20 8FD D2571-01-06, Page 5 of 5 > INSTRUMENTS