DMR30-PM1 Series DC Process Meter PRODUCT OVERVIEW The DMR30-PM1 digital panel meter performs precision process signal measurements, supporting 0-5V and 0-10V voltage, and 0-20mA and 4-20mA current signals. This meter features a highly visible, 0.45 (11.4mm) high, 5 character+sign alphanumeric LED display which can provide up to 4.5 digits of measurement resolution. Configuration is made easy by a contactless touch-sensor front-panel user interface, eliminating the need for jumpers, potentiometers, or DIP switches. The meter is powered from an external 9-32VDC supply and typically requires only 40mA when operated at 12V. The measurement inputs provide +/-48V of common mode input range, simplifying its use in a wide range of applications. An isolated solid- state relay can be set to close at user-defined trip-points, providing external signaling capability. The meter features a rugged polycarbonate housing that is mountable in a round hole using the supplied nut and gasket, or by using 3 4-40 (M3) screws. The DMR30-PM1 s features make it ideal for use in laboratory instrumentation, factory automation, and other applications requiring precise process monitoring. Features ORDERING INFORMATION: Measures 0-5V, 0-10V, 0-20mA and DMR30-PM1-1-DC4-R-C DC process meter, alarm output, red display 4-20mA process signals DMR30-PM1-1-DC4-G-C * DC process meter, alarm output, green display Supports physical units, percentage DMR30-PM1-1-DC4-B-C * DC process meter, alarm output, blue display full-scale and arbitrary user display *Contact factory for availability. scales Bright 0.45 (11.4mm) LED display visible up to 20 feet (6 meters) SIMPLIFIED BLOCK DIAGRAM Long-life contactless touch-sensor controls Peak and valley measurement modes Digital filter option for measurements DMR30-PM1 PROCESS ALPHANUMERIC DISPLAY in noisy environments VOLTAGE AND ANNUNCIATORS Solid-state alarm relay with INPUTS ALARM MAX MIN programmable trip-point and +VIN (5) hysteresis -VIN (6) Convenient mounting options Operates from 9 to 32 VDC ADC CURRENT LOOP Low current consumption 40mA INPUTS TOUCH SENSOR KEYPAD typical at 12VDC +ILOOP (7) Two year warranty 50 MICROCONTROLLER -ILOOP (8) RESET MENU MODE RELAY Solid State OUTPUTS POWER Relay INPUTS (1) RELAYB PTC Fuse +VS (3) 3.3V DC-DC -3.3V (2) RELAYA -VS (4) For full details go to www.murata-ps.com/rohs www.murata-ps.com/support DMR30-PM1.A01 Page 1 of 11 DMR30-PM1 Series DC Process Meter PERFORMANCE AND FUNCTIONAL SPECIFICATIONS (TA= 25C UNLESS OTHERWISE NOTED) Measurement Min Typ Max Units Voltage Measurement (+VIN,-VIN inputs) Ranges 0-5, 0-10 V Accuracy 0.05 0.2 %F.S. Absolute Maximum Input Voltage -30 30 V Current Loop Measurement (+ILOOP, -ILOOP inputs) Ranges 0-20 , 4-20 mA Accuracy 0.05 0.2 %FS Absolute Maximum Input Current -100 +100 mA Operating Supply Voltage 9 32 V DC Operating Supply Current 12V operation - 40 - mA 24V operation 25 USER INTERFACE 5 Digit Alphanumeric LED, 11.4mm (0.45in) Height Display Type and Size 3 LED Annunciators (Alarm,Max,Min) Four capacitive touch sensors User Controls <UP> <DOWN> <LEFT> <RIGHT> Display Modes Normal, Min reading, Max reading Over-range Indication Flashing Value Display Update Rate 2.5 updates/sec. Decimal Point Selection Automatically Set Main Menu Password <RIGHT> <UP> <RIGHT> <UP> <RIGHT> RELAY OUTPUT Min. Typ. Max. Units Off-state voltage (measured across RELAYA to RELAYB) terminals -40 +40 V On-state current -250 +250 mA On state resistance 1 TERMINAL BLOCKS (TB1, TB2, TB3) Wire Size 14-24 AWG Insulation Strip Length 6mm (0.24 in.) Screw Tightening Torque 0.4 N-m (3.5 lb-in) PHYSICAL/ENVIRONMENTAL Min. Typ. Max. Units Operating Temperature 0 +50 C Storage Temperature -40 +75 C Humidity (non-condensing) 0 85 % Dimensions See Mechanical Specifications Drawing Weight 65g (2.3 oz.) OPERATION: Measurement Type and Capabilities DMR30-PM1 series digital process meters employ precision ADCs and a low-power microcontroller to measure and display DC process voltage and process loop current. User-selectable input measurement ranges of 0-5V, 0-10V, 4-20mA and 0-20mA. Measurement inputs support a common-mode input voltage range of up to +/-48V in relation to the power supply return (-VS connector), simplifying applications where the meters power supply return is not suitable for a VIN reference. User-selectable number of display digits supports applications where additional digits may cause excessive visual distraction. Arbitrary scale modes provide the ability to map an electrical input signal range (such as 0-5V) onto a user-defined range (for example, -40 to +200). A digital filter option with three selectable settings (OFF, FAST, SLOW) help optimize for operations in electrically noisy environments. www.murata-ps.com/support DMR30-PM1.A01 Page 2 of 11