DMS01-CL

DMS01-CL MURATA-PS | Alldatasheet

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Technical content

Features

 Measures 4-20mA or 0- 20mA current loop process signals  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  Two-year warranty For full details go to www.murata -ps.com/rohs

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 2 of 9 www.murata -ps.com/support DC ELECTRICAL CHARACTERISTICS (Typical @ 25C, +12VDC supply unless otherwise noted ) Parameter Min Typ Max Units 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 input current) Display Color Red (627nm pk) Over-range indication Flashing Display 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 table Gain Trim Range variable, see span range selection table Temperature Drift (0 to +50˚C) 0.8 count/°C Absolute Maximum Input Current (-IIN to +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 Parameter 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 Dipswitch configuration setting for: - Input current range - Digital filter enable - Span (display) range - Unipolar / Bipolar mode - Trim enable QTY 2 6-position Dipswitches (S1 & S2) Overall Dimensions 5.86 (149) L x 3.36 (86) W x 1.43 (37) H inch (mm) Terminal Blocks 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)

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 3 of 9 www.murata -ps.com/support 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 Terminal # Name Function 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. CONNECTION EXAMPLE S: This example illustrates an application where the Current sensor is connected to terminals 3 and 4, where terminal 3 is the negative input terminal (-IN) and terminal 4 is the positive input terminal (+IN). The 12V power supply (not included) connects to terminals 1 and 2, where terminal 1 is the negative power supply terminal (-VS) and terminal 2 is the positive power supply terminal (+VS) and the sensor is powered from a separate external power supply. Note: it is possible to power both the sensor and the meter from the same power supply provided the sensor can operate from +12VDC. 1 2 3 4 Terminal Block 12VDC Power Supply (meter) +VS -VS +IN -IN Sensor Power Supply B A Note: The voltage between point A and point B must be within +/- 48V Sensor - SENSOR (Current Loop) Sensor +

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 4 of 9 www.murata -ps.com/support 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: Input Range Selection Input Range SW1 Dipswitch S1 Description 4-20mA OFF ON 1 2 3 4 5 6 SW1 on S1 controls the meter’s input range. In the OFF position the input range is 4-20 mA, while in the ON position the meter’s range is 0-20 mA. 0-20mA ON ON 1 2 3 4 5 6 Digital Filter On/Off Slection Digital Filter SW2 Dipswitch S1 Description OFF OFF ON 1 2 3 4 5 6 SW2 on S1 controls the meter’s digital filter. In the OFF position, the filter is disabled and readings are updated at maximum speed. In the ON position, the filter is enabled, and readings are processed through a moving average filter, which results in more stable readings, but a slower response. ON ON ON 1 2 3 4 5 6 Unipolar/Bipolar Mode Selection Mode SW2 Dipswitch S2 Description Unipolar OFF ON 1 2 3 4 5 6 Bipolar mode allows the user to display negative values. For example, if the meter is set to 0-20 mA input, span of 6000 and set in unipolar mode, then 0 mA input results in a count of 0 on the display, while 20 mA input results in a count of 6000 on the display. If the meter is set to bipolar mode with the same settings, 0 mA input results in a count of -6000 on the display, while 20 mA results in a count of +6000 on the display. SW2 on S2 controls whether the meter is in unipolar or bipolar mode. Unipolar mode can display values between 0 to +20000 depending on the span range setting. Bipolar mode can display values between -9500 to +9500 depending on the span range setting. The bipolar range is not offered beyond ±9500 because of display limitations. Bipolar ON ON 1 2 3 4 5 6 Span Range Selection Span Range Gain Adjustment Offset Adjustment S2 S1 Dipswitch S2 Dipswitch S1 SW1 SW3 SW4 SW5 SW6 Input Current (mA) N/A N/A OFF OFF OFF OFF OFF 2000 220 ±2 100 ±2 OFF ON OFF OFF OFF 2500 288 ±2 125 ± 1 OFF OFF ON OFF OFF 3000 255 ±2 150 ±2 OFF ON ON OFF OFF 3500 263 ±2 175 ±2 OFF OFF OFF ON OFF ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 5 of 9 www.murata -ps.com/support Span Range Selection continued Span Range Gain Adjustment Offset Adjustment S2 S1 Dipswitch S2 Dipswitch S1 SW1 SW3 SW4 SW5 SW6 4000 260 ±2 200 ±2 OFF ON OFF ON OFF 4500 270 ±2 225 ±2 OFF OFF ON ON OFF 5000 250 ±2 250 ±2 OFF ON ON ON OFF 5500 275 ±2 275 ±2 OFF OFF OFF OFF ON 6000 270 ±2 300 ±2 OFF ON OFF OFF ON 6500 260 ±2 325 ±2 OFF OFF ON OFF ON 7000 280 ±2 350 ±2 OFF ON ON OFF ON 7500 263 ±2 375 ±2 OFF OFF OFF ON ON 8000 280 ±2 400 ±2 OFF ON OFF ON ON 8500 298 ±2 425 ±2 OFF OFF ON ON ON 9000 270 ±2 450 ±2 OFF ON ON ON ON 9500 285 ±2 475 ±2 ON OFF OFF OFF OFF 10000 250 ±2 500 ±2 ON ON OFF OFF OFF 10500 263 ±2 525 ±2 ON OFF ON OFF OFF 11000 275 ±2 550 ±2 ON ON ON OFF OFF 11500 288 ±2 575 ±2 ON OFF OFF ON OFF 12000 300 ±2 600 ±2 ON ON OFF ON OFF 12500 250 ±2 625 ±2 ON OFF ON ON OFF ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 6 of 9 www.murata -ps.com/support 13000 260 ±2 650 ±2 ON ON ON ON OFF Span Range Selection continued Span Range Gain Adjustment Offset Adjustment S2 S1 Dipswitch S2 Dipswitch S1 SW1 SW3 SW4 SW5 SW6 13500 270 ±2 675 ±2 ON OFF OFF OFF ON 14000 280 ±2 700 ±2 ON ON OFF OFF ON 15000 750 ±2 750 ±2 ON OFF ON OFF ON 16000 320 ±2 800 ±2 ON ON ON OFF ON 17000 765 ±2 850 ±2 ON OFF OFF ON ON 18000 270 ±2 900 ±2 ON ON OFF ON ON 19000 760 ±2 950 ±2 ON OFF ON ON ON 20000 300 ±2 1000 ±2 ON ON ON ON ON Decimal Point Selection Decimal Placement SW3 SW4 SW5 Dipswitch S2 When measuring the physical current the decimal placement is fixed at 00.00. When any of the span range switches are turned ON the decimal point placement has to be manually selected. SW3 through SW5 on S2 control the decimal point placement options as shown in the table.

0000 OFF OFF OFF

0.000 ON OFF OFF

00.00 OFF ON OFF

000.0 OFF OFF ON

Trim Enable SW6 Dipswitch S2 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. OFF OFF ON ON ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6 ON 1 2 3 4 5 6

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 7 of 9 www.murata -ps.com/support 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

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 8 of 9 www.murata -ps.com/support 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. MECHANICAL SPECIFICATIONS

Large Format Digital Current-Loop Process Meter DMS01-CL-RS12-C.A02.D01 Page 9 of 9 www.murata -ps.com/support APPLICATION NOTES Document Number Description URL Link to Document 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: https://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. ©2020 Murata Power Solutions, Inc..