DMS01-CL-RS12-C

**DMS01-CL Series** 

## Murata Power Solutions 

## Large Format Digital Current-Loop Process Meter 

## **PRODUCT OVERVIEW** 

DMS01-CL-RS12-C  is a robust digital panel meter that provides precise measurement and display of current loop process signals on a highly visible red 1” (25mm) tall, 4 1/2 digit seven-segment LED display with adjustable brightness. It provides selectable 4-20 mA or 0-20 mA current range, up to 32 display ranges and choice of user calibration or factory calibration modes. An external 12VDC power source provides power to the meter. An internal DC-DC converter accommodates a +/-48V commonmode measurement range with respect to the power supply input, simplifying a wide range of measurement applications and an internal digital filter enhances performance in electrically noisy environments making this digital panel meter is ideal for laboratory instrumentation, factory automation, and any application requiring precision measurement. 

## **Features** 

- Measures 4-20mA or 0- 20mA current loop process signals 

**==> picture [357 x 47] intentionally omitted <==**

**----- Start of picture text -----**<br>
ORDERING INFORMATION:<br>DMS01-CL-RS12-C  Digital Current Loop Process Meter, 1” Red Display, 12VDC Power<br>SIMPLIFIED BLOCK DIAGRAM<br>**----- End of picture text -----**<br>


- 32 user-selectable span (display) ranges 

- Bright 1” red LED display, readable at distance of 80 ~ 

- feet ( 24 m) 

- Adjustable display brightness 

- Wide common-mode input range (±48V) 

- Digital filter for optimizing measurements in electrically noisy environments 

- Operates from an external 12VDC power supply 

- Mounts with  adhesive strips (supplied) or screws 

- 0.1% typical accuracy 

For full details go to **www.murata-ps.com/rohs** 

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DMS01-CL-RS12-C.A01.D05 Page 1 of 8 

**DMS01-CL Series** 

Large Format Digital Current-Loop Process Meter 

## Murata Power Solutions 

|DC ELECTRICAL CHARACTERISTICS(Typical @ 25C,+12VDC supplyunless otherwise noted)<br>~~CO~~|DC ELECTRICAL CHARACTERISTICS(Typical @ 25C,+12VDC supplyunless otherwise noted)<br>~~CO~~|DC ELECTRICAL CHARACTERISTICS(Typical @ 25C,+12VDC supplyunless otherwise noted)<br>~~CO~~|DC ELECTRICAL CHARACTERISTICS(Typical @ 25C,+12VDC supplyunless otherwise noted)<br>~~CO~~|DC ELECTRICAL CHARACTERISTICS(Typical @ 25C,+12VDC supplyunless otherwise noted)<br>~~CO~~|
|---|---|---|---|---|
|**Parameter**<br>~~CO~~|**Min**<br>~~CO~~|**Typ**<br>~~CO~~|**Max**<br>~~CO~~|**Units**<br>~~CO~~|
|Supply Voltage (Operating)|11|12|13|V|
|Absolute Maximum Supply Voltage|-1||+14|V|
|Supply Current1(Operating at maximum intensity)|||100|mA|
|(Operating at minimum intensity)|||60|mA|
|Digits (Displayed)|3.5–4.5, depending on display range||||
|Digit Height|1 (25.4)|||inch (mm)|
|Display Update Rate|3.5|||Sa/s|
|Decimal Selection|Manual, (fixed at 00.00 when displaying physical<br>input current)||||
|Display Color|Red (627nm pk)||||
|Over-range indication|FlashingDisplay||||
|Measurement range (0-20mA range)|0||20|mA|
|Display Span Range (unipolar mode)|2000 to 20,000, 32 codes||||
|(bipolar mode)|-9500 to +9500||||
|Accuracy||0.1%|1%||
|Zero-Offset  (0-20mA  range)|-2||+2|count|
|Input Impedance||50||Ω|
|Offset Trim Range|±5% of span range, see span range selection<br>table||||
|Gain Trim Range|variable, see span range selection table||||
|Temperature Drift (0 to +50˚C)||0.8||count/°C|
|Absolute Maximum Input Current (-IINto +IIN)|-40||+40|mA|
|Common-Mode Input Range (-VIN) to (-VS)|-48||+48|V|



1 based on a display value of “1.888” 

|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|PHYSICAL/ENVIRONMENTAL<br>~~CO~~|
|---|---|---|---|---|---|---|
|**Parameter**|**Min**|**Min**|**Typ**|**Max**||**Units**|
|Operating Temperature|0|||+50||°C|
|Storage Temperature|-40|||+75||°C|
|Humidity (Non-condensing)||||85||%RH|
|Weight|||6.14 (174)|||oz (g)|
||||||||
|**User Controls**|||||||
|Brightness|||single-turn potentiometer||||
|Offset and Gain Adjustment|||QTY 2 12-turn trim potentiometers||turn trim potentiometers||
|Dipswitch configuration setting for:|||||||
|-<br>Input current range|||||||
|-<br>Digital filter enable<br>-<br>Span (display) range||QTY 2  6-position Dipswitches (S1 & S2)|||||
|-<br>Unipolar / Bipolar mode|||||||
|-<br>Trim enable|||||||
|Overall Dimensions|5.86 (149) L x 3.36 (86) W x 1.43 (37) H|5.86 (149) L x 3.36 (86) W x 1.43 (37) H||5.86 (149) L x 3.36 (86) W x 1.43 (37) H||inch (mm)|
||||||||
|**Terminal Blocks**|**Min**|**Min**|**Typ**|**Max**||**Units**|
|Wire Size|24|||14||AWG|
|Insulation Strip Length|||0.25 (6)|||inch (mm)|
|Screw Tightening torque|||56.6 (0.4)|||oz-in (N-m)|



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DMS01-CL-RS12-C.A01.D05 Page 2 of 8 

**DMS01-CL Series** 

Large Format Digital Current-Loop Process Meter 

## Murata Power Solutions 

- ~~|~~ MEASUREMENT TYPE AND CAPABILITIES:  Measures 4-20 or 0-20 mADC current loop process signals with 32 user-selectable span ranges (via S1, S2), displaying 3-1/2 to 4 1/2 digits of resolution. 

- Two user-selectable modes of operation: unipolar (supporting only positive readings)  or bipolar (supports negative output readings). 

   - The meter’s measurement terminals are electrically isolated from the power terminals through a DC-DC converter, providing a high common-mode input range (+/-48V) for the input (relative to the power terminals), simplifying a wide range of measurement applications. 

   - Meter requires an external 12VDC power supply (not included). 

~~|~~ REAR PANEL LAYOUT: SCREW TERMINAL CONNECTIONS & CONTROLS 

|Terminal Block<br>~~PT~~|Terminal Block<br>~~PT~~|Terminal Block<br>~~PT~~|
|---|---|---|
|**Terminal #**<br>~~PT~~|**Name**<br>~~PT~~|**Function**<br>~~PT~~|
|1|-VS|Power Supply Terminals (+12VDC)|
|2|+VS||
|3|-IN|Measurement Input Terminals|
|4|+IN||



**Brightness Adjust** – This single-turn potentiometer supports adjustment of the meter’s LED display brightness for maximum readability. Turning the pot clockwise increases brightness, while turning it counterclockwise decreases brightness. 

**Offset Adjust** – This 12-turn potentiometer supports the offset adjustments of the span ranges. See the span range selection table for the maximum allowed offset for each span range. Turning the pot clockwise will give a negative offset, while turning it counterclockwise gives a positive offset. 

**Gain Scale Adjust** – This 12-turn potentiometer supports gain adjustments of the span ranges. This allows the user to select values between each of the span ranges, between 1780 to 20300 (unipolar mode) and -9785 to 9785 (bipolar mode). See the span range selection table for the maximum allowed gain for each span range. Turning the pot clockwise decreases (-) the gain, while turning it counterclockwise increases (+) the gain (see Span Ranges below). 

**S1 & S2** – 6-position dipswitches provided for configuration the meter’s various options. See Meter Configuration below for details. 

**==> picture [540 x 250] intentionally omitted <==**

**----- Start of picture text -----**<br>
CT CONNECTION EXAMPLES:<br>This example illustrates an application where the Current  sensor<br>is connected to terminals 3 and 4, where terminal 3 is the negative<br>input terminal (-IN) and terminal 4 is the positive input terminal<br>Terminal Block (+IN).<br>The 12V power supply (not included) connects to terminals 1 and<br>1 2 3 4 2, where terminal 1 is the negative power supply terminal (-VS)<br>and terminal 2 is the positive power supply terminal (+VS) and the<br>sensor is powered from a separate external power supply. Note: it<br>is possible to power both the sensor and the meter from the same<br>Note: The voltage between point A  power supply provided the sensor can operate from +12VDC.<br>and point B must be within +/- 48V +<br>12VDC<br>Power<br>Supply  B<br>(meter)<br>- A<br>+<br>Sensor<br>Sensor + Power<br>Supply<br>Sensor - -<br>SENSOR<br>(Current Loop)<br>-VS +VS -IN +IN<br>**----- End of picture text -----**<br>


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DMS01-CL-RS12-C.A01.D05 Page 3 of 8 

**DMS01-CL Series** 

Large Format Digital Current-Loop Process Meter 

## Murata Power Solutions 

~~|~~ METER CONFIGURATION 

This Meter is configured through two 6 position dipswitches S1 and S2 on the back of the meter. Each switch position is identified by SW#. For example, SW1 is switch 1 on S1, and controls the input range, while SW1 on S2 selects of one the span ranges. The following illustrate the possible configurations: 

|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|METER CONFIGURATION<br>~~|~~|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|This Meter is configured through two 6 position dipswitches S1 and S2 on the back of the meter. Each switch position is identified by SW#. For<br>example, SW1 is switch 1 on S1, and controls the input range, while SW1 on S2 selects of one the span ranges. The following illustrate the<br>possible configurations:<br>~~|~~|||||||||||||||
|Input Range Selection|||||||||||||||
|**Input Range**||**SW1**||**Dipswitch S1 **||**Description **|||||||||
|4-20mA||OFF||**ON**<br>**1**<br>**2 3 4 5 6**||SW1 on S1 controls the meter’s input range. In the OFF position the<br>input range is 4-20 mA, while in the ON position the meter’s range is 0-<br>20 mA.|||||||||
|0-20mA||ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~UUUUL|||||||||||
|Digital Filter On/Off Slection|||||||||||||||
|**Digital Filter **||**SW2**||**Dipswitch S1 **||**Description **|||||||||
|OFF||OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>U~~H~~UUUL||SW2 on S1 controls the meter’s digital filter. In the OFF position, the<br>filter is disabled and readings are updated at maximum speed. In the<br>ON position, the filter is enabled, and readings are processed through a<br>moving average filter, which results in more stable readings, but a<br>slower response.|||||||||
|ON||ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>U~~A~~UUUU|||||||||||
|Unipolar/Bipolar Mode Selection|||||||||||||||
|**Mode**||**SW2**||**Dipswitch S2 **||**Description **|||||||||
|Unipolar||OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>U~~E~~UUUL||Bipolar mode allows the user to display negative values. For example, if<br>the meter is set to 0-20 mA input, span of 6000 and set in unipolar<br>mode, then 0 mA input results in a count of 0 on the display, while 20<br>mA input results in a count of 6000 on the display. If the meter is set to<br>bipolar mode with the same settings, 0 mA input results in a count of -<br>6000 on the display, while 20 mA results in a count of +6000 on the<br>display. SW2 on S2 controls whether the meter is in unipolar or bipolar<br>mode. Unipolar mode can display values between 0 to +20000<br>depending on the span range setting. Bipolar mode can display values<br>between -9500 to +9500 depending on the span range setting. The<br>bipolar range is not offered beyond ±9500 because of display<br>limitations.|||||||||
|Bipolar||ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>U~~B~~UOUU|||||||||||
|Span Range Selection|||||||||||||||
|**Span Range**|**Gain**<br>**Adjustment**||**Offset**<br>**Adjustment**|**S2 **|**S1**||||**Dipswitch S2**|||**Dipswitch S1**|||
|||||**SW1**|**SW3**|**SW4**|**SW5**|**SW6**|||||||
|Input Current<br>(mA)|N/A||N/A|OFF|OFF|OFF|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~H~~OUCUL]|||**ON**<br>**1**<br>**2 3 4 5 6**<br>| ~~BBRE~~||
|2000|220 ±2||100 ±2|OFF|ON|OFF|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~H~~UCJUU))|||**ON**<br>**1**<br>**2 3 4 5 6**<br>JU~~UABHE~~||
|2500|288 ±2||125 ± 1|OFF|OFF|ON|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~H~~OUCUL)|||**ON**<br>**1**<br>**2 3 4 5 6**<br>| ~~BABE~~||
|3000|255 ±2||150 ±2|OFF|ON|ON|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~B~~UUUCU)|||**ON**<br>**1**<br>**2 3 4 5 6**<br>JI~~UBAEE~~||
|3500|263 ±2||175 ±2|OFF|OFF|OFF|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~H~~UUUUU)|||**ON**<br>**1**<br>**2 3 4 5 6**<br>JU~~UBBAE~~||



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DMS01-CL-RS12-C.A01.D05 Page 4 of 8 

**DMS01-CL Series** 

## |[mutRata] Es sutktata | Ps 

Large Format Digital Current-Loop Process Meter 

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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Span Range**|**Gain**<br>**Adjustment**|**Offset**<br>**Adjustment**|**S2 **|**S1 **||||**Dipswitch S2**|||**Dipswitch S1**|||
||||**SW1**|**SW3**|**SW4**|**SW5**|**SW6**|||||||
|4000|260 ±2|200 ±2|OFF|ON|OFF|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|4500|270 ±2|225 ±2|OFF|OFF|ON|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|5000|250 ±2|250 ±2|OFF|ON|ON|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|5500|275 ±2|275 ±2|OFF|OFF|OFF|OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|6000|270 ±2|300 ±2|OFF|ON|OFF|OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|6500|260 ±2|325 ±2|OFF|OFF|ON|OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|7000|280 ±2|350 ±2|OFF|ON|ON|OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|7500|263 ±2|375 ±2|OFF|OFF|OFF|ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|8000|280 ±2|400 ±2|OFF|ON|OFF|ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|8500|298 ±2|425 ±2|OFF|OFF|ON|ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|9000|270 ±2|450 ±2|OFF|ON|ON|ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|9500|285 ±2|475 ±2|ON|OFF|OFF|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|10000|250 ±2|500 ±2|ON|ON|OFF|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|10500|263 ±2|525 ±2|ON|OFF|ON|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|11000|275 ±2|550 ±2|ON|ON|ON|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|11500|288 ±2|575 ±2|ON|OFF|OFF|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|12000|300 ±2|600 ±2|ON|ON|OFF|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|12500|250 ±2|625 ±2|ON|OFF|ON|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||
|13000|260 ±2|650 ±2|ON|ON|ON|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**|||**ON**<br>**1**<br>**2 3 4 5 6**||



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DMS01-CL-RS12-C.A01.D05 Page 5 of 8 

**DMS01-CL Series** 

## Murata Power Solutions 

## Large Format Digital Current-Loop Process Meter 

|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|Span Range Selection continued|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**Span Range**|**Gain**<br>**Adjustment**|**Offset**<br>**Adjustment**|**S2 **|**S1 **||||||**Dipswitch S2**|||**Dipswitch S1**|||
||||**SW1**|**SW3**||**SW4**||**SW5**|**SW6**|||||||
|13500|270 ±2|675 ±2|ON|OFF||OFF||OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~U JUU;)|JUU;)||**ON**<br>**1**<br>**2 3 4 5 6**<br>UU ~~BBEA~~||
|14000|280 ±2|700 ±2|ON|ON||OFF||OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~JUUU0)|||**ON**<br>**1**<br>**2 3 4 5 6**<br>|J~~URBBA~~||
|15000|750 ±2|750 ±2|ON|OFF||ON||OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~JUUU0)|||**ON**<br>**1**<br>**2 3 4 5 6**<br>|J~~UBBEA~~||
|16000|320 ±2|800 ±2|ON|ON||ON||OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~U IU)|IU)||**ON**<br>**1**<br>**2 3 4 5 6**<br>|CUBA~~E~~A||
|17000|765 ±2|850 ±2|ON|OFF||OFF||ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~U JU)|JU)||**ON**<br>**1**<br>**2 3 4 5 6**<br>UU ~~BBBA~~||
|18000|270 ±2|900 ±2|ON|ON||OFF||ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~boUc]|Uc] [UU||**ON**<br>**1**<br>**2 3 4 5 6**<br>[UU ~~BBBE~~||
|19000|760 ±2|950 ±2|ON|OFF||ON||ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~U UU)|UU) 6}||**ON**<br>**1**<br>**2 3 4 5 6**<br>6} ~~BBBE~~||
|20000|300 ±2|1000 ±2|ON|ON||ON||ON|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>~~A~~U JUU))|JUU))||**ON**<br>**1**<br>**2 3 4 5 6**<br>UU ~~BBBA~~||
|Decimal Point Selection||||||||||||||||
|**Decimal**<br>**Placement**|**SW3**|**SW4**|**SW5**|**Dipswitch S2**||||When measuring the physical current the decimal placement<br>is fixed at 00.00. When any of the span range switches are<br>turned ON the decimal point placement has to be manually<br>selected. SW3 through SW5 on S2 control the decimal point<br>placement options as shown in the table.||||||||
|0000|OFF|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>H~~HH~~|||||||||||
|0.000|ON|OFF|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>| ~~/BBH~~||||||||||||
|00.00|OFF|ON|OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>JU ~~BAB~~E|||||||||||
|000.0|OFF|OFF|ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>JU~~BHA~~|||||||||||
|Trim Enable Selection||||||||||||||||
|**Trim Enable**||**SW6**||**Dipswitch S2 **||||QTY 2 potentiometers for adjusting gain and offset are<br>enabled by SW6 on S2. In the “OFF” position, the trim is<br>disabled and the meter runs from factory calibrated span<br>ranges. In the “ON” position the trim is enabled, allowing user<br>to vary the gain and offset of the span range. The gain<br>adjustment allows the user to adjust the span of the meter to<br>any number between 1780 and 20300 (unipolar mode) and -<br>9785 to +9785 (bipolar mode) with the span range setting<br>(see span range table above). If the meter is out of calibration<br>the operator can use the gain or offset adjustment for<br>correction only when one of the span range settings is set, not<br>when displaying the physical input voltage.||||||||
|OFF||OFF||**ON**<br>**1**<br>**2 3 4 5 6**<br>JUUUC~~E~~||||||||||||
|ON||ON||**ON**<br>**1**<br>**2 3 4 5 6**<br>UUUUU~~E~~||||||||||||



QTY 2 potentiometers for adjusting gain and offset are enabled by SW6 on S2. In the “OFF” position, the trim is disabled and the meter runs from factory calibrated span ranges. In the “ON” position the trim is enabled, allowing user to vary the gain and offset of the span range. The gain adjustment allows the user to adjust the span of the meter to any number between 1780 and 20300 (unipolar mode) and - 9785 to +9785 (bipolar mode) with the span range setting (see span range table above). If the meter is out of calibration the operator can use the gain or offset adjustment for correction only when one of the span range settings is set, not when displaying the physical input voltage. 

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DMS01-CL-RS12-C.A01.D05 Page 6 of 8 

**DMS01-CL Series** 

Large Format Digital Current-Loop Process Meter 

## Murata Power Solutionsse 

## TECHNICAL NOTES 

## **1. Calibration** 

This meter is calibrated at the factory at the time of manufacture. If the meter is out of calibration, the operator can use the gain or offset adjustment (Trim Enable) for correction, only when one of the span range settings is set, not when displaying the physical input voltage. However, calibration may no long be within datasheet specifications. 

## **2. Protection and Fusing** 

This meter contains an internal PTC fuse as well as other protective elements that are intended for protection against brief electrical transients and misconnect conditions. Additional external protective components such as fuses and transient suppressors may be required depending on the application in which the meter is deployed. 

## **3. Noisy Power Supplies** 

In systems with noisy power supplies, connecting an external, non-polarized capacitor across the +VS and -VS inputs can help reduce measurement errors. In certain situations, the use of twisted pair or shield wiring may be required. 

## **4. Installation** 

**IMPORTANT!** To ensure safe and reliable operation, this meter must be installed and serviced by qualified technical personnel. Contact Murata Power Solutions if there is any doubt regarding their installation or operation. 

## **5. Over-range Limit** 

The meter will flash on and off when the meter exceeds its minimum or maximum input current. For example, if the meter is set in the 0-20 mA range, any input current below 0 mA or above 20 mA will cause the display to flash on and off. 

## PANEL INSTALLATION Panel Cutout 

Note: When mounting panel meter with hardware, a four hole pattern (four outermost holes) or the six hole pattern may be used at the customer’s option. 

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**DMS01-CL Series** Large Format Digital Current-Loop Process Meter 

## Murata Power Solutionsse 

## MECHANICAL SPECIFICATIONS 

Murata Power Solutions, Inc. 129 Flanders Rd. Westborough, Ma  01581, USA. ISO 9001  and 14001  REGISTERED 

**This product is subject to the following operating requirements and the Life and Safety Critical Application Sales Policy: Refer to: http://www.murata-ps.com/requirements/** 

Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. _**© 2019 Murata Power Solutions, Inc..**_ 

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