www.murata-ps.com DMS-40PC Series 4 Digit, LED Display Digital Panel Voltmeters FEATURES DMS-40PC Series, 4 Digit, LED Display, Miniature DPMs are fully self-contained, Precision, autozeroing, factory-calibrated A/D converter component-like, plug-in meters that provide scienti c-grade accuracy (typically 2 counts or 0.005% of full scale) and outstanding reliability at a very affordable price. Scienti c-grade accuracy, 2 counts Within its miniature (2.17 x 0.92 x 0.56), epoxy-encapsulated package, each meter Miniature size: 2.17 x 0.92 x 0.56 contains a precision reference circuit a high-resolution, autozeroing, factory-calibrated 55mm x 23mm x 14mm A/D converter and a large (0.52/13.2mm), easy-to-read, LED display. LEDs are available Large (0.52 /13.2mm) LED display in red, yellow and green colors. Red LEDs are also offered in high-intensity or low-power Choice of red, green or yellow colors versions. High-intensity or low-power red LED s optional The versatile design of the DMS-40PC Series assures trouble-free installation and long-term operation. Differential input voltage ranges include 2V, 20V and 200V. Input Single +5V supply (175mW for low-power models) impedance is a minimum 800k. Non-inverting inputs are overvoltage protected to 250V, Epoxy-encapsulated, 12-pin DIP with built-in color lter and CMRR is typically 86dB (dc to 60Hz). and bezel The DMS-40PC s epoxy-encapsulated package has an integral bezel and color lter. 3 differential input voltage ranges The moisture and vibration-proof package is extremely rugged and well suited for harsh DISPLAY HOLD and TEST functions environments and extended temperatures. Devices are fully speci ed for 0 to +50C operation. Optional BCD data outputs for CPU interface All models operate from a single +5V supply and typically consume 500mW. Low- 0 to +50C temperature range power models, whose display is just as bright as standard models, typically consume 175mW. DISPLAY TEST and HOLD functions are standard on each meter, and a complete set of BCD outputs are optional for sending data to CPU s or remote displays. +5V 1 12 V+ +5V SUPPLY () INPUT LO 1 R2 0.01F 5V R1 2 11 DC/DC DISPLAY TEST (+) INPUT HI CONVERTER V 909k 10 ANALOG 3 A/D COMMON 5V RETURN CONVERTER 0 Vdc 2.5V DATA 4 REF. DP 3 9 5 DISPLAY HOLD DP 2 8 DP4 6 +5V DP 1 7 REFERENCE IN/OUT 1 R2 is not used on 2V (-1) models. R2 = 101k on 20V (-2) models and 9.2k on 200V (-3) models. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support MPM DMS-40PC.D03 Page 1 of 6DMS-40PC Series 4 Digit, LED Display Digital Panel Voltmeters Performance/Functional Speci cations Typical at TA = +25C and supply voltage = +5V using the single-ended input circuit, unless otherwise noted. Humidity (non-condensing) 0 95 % Analog Inputs Min. Typ. Max. Units Case Material Polycarbonate Full Scale Input Range: Weight 0.75 ounces (21 grams) DMS-40PC-1 2 Volts DMS-40PC-2 20 Volts Applies for transient or continuous overvoltages applied to (+) INPUT HI (pin 11) with () INPUT LO (pin 12) properly connected. Pin 12 is not overvoltage protected (see Figure 1). DMS-40PC-3 200 Volts Voltages applied to pin 12 should not exceed the supply voltage. See Technical Notes. Input Impedence: BCD outputs are optional and must be speci ed in the part number. DMS-40PC-1 100 1000 M See Ordering Information. Includes high-intensity and BCD-output models. DMS-40PC-2, -3 0.8 1 M 250 Volts Overvoltage Protection Ordering Information Common Mode Voltage Range 2 Volts DMS-40PC - 1 - R S - C * The DMS-40PC-3-R L-C is CMRR (dc to 60Hz) 86 dB To Be Discontinued. Last RoHS Control Inputs time buy date is 3/31/2019. Input Range: LED Color: Please click here to view the 1 = 2V Decimal Pt. Placement (Pins 4-6, 8) Tie to pin 3 to activate GS = Standard Green Discontinuance Notice. 2 = 20V RH = High-Intensity Red Display Test (Pin 2) Tie to pin 3 to activate all segments 3 = 200V RL = Low-Power Red Display Hold (Pin 9) Tie to pin 3 to hold last reading RS = Standard Red YS = Standard Yellow BCD Outputs See www.murata-ps.com/dpm-availability for model-speci c availability. Logic Levels (1 LSTTL load max.): BCD Output Models: Logic 1 +2.4 Volts BCD outputs are only available on the following red meters. Logic 2 +0.4 +0.8 Volts DMS-40PC-1-RS-BCD-C for 2V input range DMS-40PC-2-RS-BCD-C for 20V input range Performance DMS-40PC-3-RS-BCD-C for 200V input range Sampling Rate 2.5 reading per second DMS-40PC-1-RL-BCD-C for 2V input range DMS-40PC-2-RL-BCD-C for 20V input range Accuracy (3 minute warm-up): DMS-40PC-3-RL-BCD-C for 200V input range DMS-40PC-1 (Vin = +1.9V) 2 3 Counts Accessories: DMS-40PC-2 (Vin = +19V) 3 4 Counts DMS-30-CP Panel cutout punch DMS-BZL1-C DMS-40 bezel assembly DMS-40PC-3 (Vin = +190V) 3 4 Counts DMS-BZL2-C DMS-40 bezel assembly with sealing gasket Zero Reading (Vin = 0 Volts) 001 000 001 DMS-EB-C Application/evaluation board with standard MOLEX connector, decimal point solder pads Temperature Drift (0 = +50C) and attenuation resistor pads. DMS-40PC-1 0.4 1 Cnts/C A panel-mount retaining clip is supplied with each model. DMS-40PC-2, -3 0.4 1.5 Cnts/C TECHNICAL NOTES Power Supply Requirements Supply Voltage +4.75 +5.00 +5.25 Volts 1. ANALOG COMMON (Pin 10): This pin is an internal, low-noise ground for the DMS-40PC. It is internally connected to pin 3 Supply Current: (5V RETURN). Do not connect pin 10 to either pin 3 or your system +100 +140 mA Standard Models ground as this will create a ground loop and possibly result in errone- Low-Power Models +35 +50 mA ous readings. Display 2. REFERENCE INPUT/OUTPUT (Pin 7): This pin accesses the meters Display Type and Size 4 digit, 0.52 /13.2mm high LED internal reference and is used during the factory calibration proce- Polarity Indication Autopolarity for negative Vin) dure. Pin 7 should be left open in most common applications. It can be used in certain ratiometric applications in which it is desirable Overrange Indication0000 ( ashing) for negative Vin0000 ( ashing) for positive Vin for the meters reference to track an external reference. See Ap Note DMS-AN3 at