Low cost, 3-1/2 Digit Voltmeters, 1/8 DIN


Low cost, DC Voltmeter | DP301AN

Low cost, DC Voltmeter

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  • ±1999 Count Display Span
  • ±200 mV to ±200 Vdc Ranges
  • True-Differential Input with 80 dB CMR
  • 3-Wire Ratio Input
  • Bright, 14 mm (0.56") LED Display
  • Automatic Zero and Polarity
  • Display Hold and Test
  • 115/230 Vac Power
  • 1/8 DIN Case

  • Isolated 9 to 32 Vdc Power
  • Isolated 26 to 56 Vdc Power
  • Screw-Terminal Barrier Strip
  • NEMA 4 (IP65) Splash-Proof Lens Cover
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The DP301AN is a low-cost 3-1/2 digit DC voltmeter. It fits in a standard 1/8 DIN panel cutout and require a depth of less than 104 mm (4.1") behind the panel. With the addition of a screw-terminal barrier strip, it becomes a low-cost, pin-compatible alternative to the DP2000A and DP2000B in applications where indication-only is required.

The DP301AN offer voltage ranges of ±0.1999V, ±1.999V, ±19.99V and ±199.9 Vdc. The input is true-differential, with excellent common-mode noise rejection (CMR). By using an external DC voltage reference, any of these ranges can further be configured for 3-wire ratio measurement with readout from 0 to 1.999.

The DP301AN can be configured for four voltage input ranges, three decimal-point positions, and high-impedance 3-wire ratio input. Mechanical options include a screw-terminal barrier strip for signal and power and a splash-proof lens cover which meets NEMA 4 (IP65) standards.

Noise Rejection
NMR: 56 dB, 50/60 Hz
CMR, AC GND to SIG GND: 120 dB, DC to 60 Hz
CMR, SIG LO to SIG GND: 80 dB, DC to 60 Hz
CMV, AC GND to SIG GND: 1500 Vp per HV test, 354 Vp per IEC spacing
AC Voltage: 115 or 230 Vac, ±15%
AC Frequency: 49 to 440 Hz
DC Voltages: 9 to 32 Vdc, isolated to 300 Vp; 26 to 56 Vdc, isolated to 300 Vp
Power Consumption: 2.4 W (nominal)
Output Voltages: 4.7 Vdc and -4.6 Vdc ±5%, 10 mA max
Type: 7-segment, red LED
Height: 14 mm (0.56")
Symbols: -
Decimal Points: Three positions programmable internally or at connector
Overrange Indication: Three least-significant digits blank
Operating Temperature: 0 to 60°C
Storage Temperature: - 40 to 85°C
Relative Humidity: 95% at 40°C (non-condensing)
Analog-To-Digital Conversion
Technique: Dual-slope, average-value
Polarity: Automatic
Signal integration period: 100 ms Signals
HOLD and TEST Inputs: TTL or 5V CMOS compatible
Bezel: 96 W x 48 H x 5.1 mm D (3.78 x 1.89 x 0.20")
Depth Behind Bezel: 104 mm (4.09")
Panel Cutout: 92 W x 45 mm H (3.62 x 1.77")
Weight: 14 oz (400 g)
Case Material: 94V-0 UL-rated polycarbonate
Accuracy at 25°C
Maximum Error: ±0.05% of reading ±1 count
Span Tempco: ±0.01% of reading/°C
Step Response: 1 s
Warmup to Rated Accuracy: 10 min
Input Configuration
Configuration: Differential, bipolar
Zero: Automatic
Span Adjustment: ±5%
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