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DMS-30LCD Datasheet(PDF) 2 Page - Murata Power Solutions Inc. |
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DMS-30LCD Datasheet(HTML) 2 Page - Murata Power Solutions Inc. |
2 / 6 page DMS-30LCD Series 3½ Digit, LCD Display Digital Panel Voltmeters Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 www.murata-ps.com MPM_DMS30LCD.D01 Page 2 of 6 TECHNICAL NOTES Performance/Functional Specifications Typical at TA = +25°C and supply voltage = +5V (using the single-ended input circuit) or +9V (using the differential input circuit), unless otherwise noted. 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). Voltages applied to pin 12 should not exceed the supply voltage. Listed spec applies to 5V-powered models only. For 9V-powered models, both (–) INPUT LO (pin 12) and (+) INPUT HIGH (pin 11) must always be at least 1.5V above –BATTERY (pin 3) and at least 1.5V below +BATTERY (pin 1). See Technical Notes. DMS-30LCD - 1 - 5 - C Input Range: 0 = ±200mV 1 = ±2V 2 = ±20V 3 = ±200V Accessories: DMS-30-CP Panel cutout punch DMS-BZL1-C DMS-30 bezel assembly DMS-BZL2-C DMS-30 bezel assembly with sealing gasket RN-DMS Gain/offset potentiometer kit for DMS-EB, DMS-EB-AC/DC and DMS-EB-DC/DC Add-On Application Boards: DMS-EB-C Multi-purpose (gain/offset, 4-20mA, etc.) DMS-EB-HTB-C High-accuracy temperature probe sensing for ±200mV models DMS-EB-DC/DC-C Provides isolated +5V power DMS-EB-TCJ-C J-type thermocouple inputs for ±2V models DMS-EB-TCK-C K-type thermocouple inputs for ±2V models DMS-EB-RMS-C For true rms measurements of ac voltages DMS-EB-AC/DC-C For ac line-powered applications Leave blank for standard models. Add B for backlit models. Power Source: 5 = +5V 9 = +9V 1. +1.23V REFERENCE OUTPUT (Pin 9): This pin is the output of the meter’s precision +1.23V internal reference, and it is referenced to ANALOG COMMON (pin 10) which sits at a potential of approximately +2V. This output should be buffered if used to drive external loads since sourcing more than 15μA from pin 9 can affect both the initial accuracy and temperature drift of the meter. 2. ANALOG COMMON (Pin 10): This pin is connected to an internal, low-noise, “relative” ground. It is used in certain differential and “float- ing” measurements as described in the Applications section of this data sheet and Ap Note 3 of the DATEL Panel Meter Catalog. Pin 10 A panel-mount retaining clip is supplied with each model. Analog Inputs Min. Typ. Max. Units Full Scale Input Range: DMS-30LCD-0 – ±200 – mV DMS-30LCD-1 – ±2 – Volts DMS-30LCD-2 – ±20 – Volts DMS-30LCD-3 – ±200 – Volts Input Impedence: DMS-30LCD-0, -1 100 1000 – M DMS-30LCD-2, -3 0.8 1 – M Overvoltage Protection – – ±250 Volts DMS-30LCD-0, -1 – – ±100 Volts DMS-30LCD-2, -3 – – ±250 Volts Common Mode Voltage Range – – ±2 Volts CMRR (dc to 60Hz) – 86 – dB Control Inputs Decimal Pt. Placement (Pins 4-6): Functionality Logic Compatibility Tie to pin 3 to activate TTL (on 5V-powered models) Display Test (Pin 2) Tie to pin 1 to activate Backlight (Pin 2) Tie to pin 3 to turn on backlight Performance Sampling Rate 2.5 reading per second Accuracy (1 minute warm-up): DMS-30LCD-0 (Vin = +0.19V) – ±1 ±2 Counts DMS-30LCD-1 (Vin = +1.9V) – ±1 ±2 Counts DMS-30LCD-2 (Vin = +19V) – ±2 ±3 Counts DMS-30LCD-3 (Vin = +190V) – ±2 ±3 Counts Zero Reading (Vin = 0 Volts) “–001” “000” “001” Temperature Drift (0 = +60°C) – ±0.2 ±0.4 Cnts/°C +1.23V Reference Out (Pin 9) +1.20 +1.23 +1.25 Volts Power Supply Requirements (5V Models) Supply Voltage +4.75 +5.00 +5.25 Volts Supply Current: Standard Models – 800 1200 μA Backlit Models – 45 60 mA Power Supply Requirements (9V Models) Supply Voltage +7.5 +9.00 +14.0 Volts Supply Current: Standard Models – 350 600 μA Backlit Models – 45 60 mA Display Display Type and Size 3½ digit, 0.4"/10.2mm high LCD Polarity Indication Autopolarity ("–" for negative Vin) Overrange Indication "–1_ _ _ " for negative inputs "1_ _ _ " for positive inputs Ordering Information Physical/Environmental Operating Temperature 0 – +60 °C Storage Temperature –20 – +75 °C Humidity (non-condensing) 0– 95 % Case Material Polycarbonate Weight 0.75 ounces (21 grams) Add -C for RoHS |
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