The DP301AN-AC is a low-cost, compact 3-1/2 digit
panel meter for AC power line monitoring. It uses a
half-wave rectifier calibrated to read the RMS value of
Two input ranges are jumper-selectable: 50.0 to
199.9 Vac with 100 mV resolution and accuracy
optimized for 115 Vac, and 50 to 650V with 1V
resolution and accuracy optimized for 230 Vac. The
meter fits a standard ¹/8 DIN panel cutout 92 x 45 mm
(3.62 x 1.77") and requires a depth of less than 104 mm
(4.1") behind the panel. A screw-terminal barrier strip
for signal and power is standard.
Mechanical options include a board-edge connector
display TEST, display HOLD, +4.7V and -4.7V outputs
splash-proof lens cover which meets NEMA 4 (IP65)
requirement is available for industrial environments.
Power options isolated 9 to 32 Vdc and 26 to 56 Vdc.
SPECIFICATIONS Noise Rejection (AC GND to SIG GND) CMR: 120 dB, DC to 60 Hz CMV: 1500 Vp per HV test, 354 Vp per IEC spacing
Accuracy at 25°C (10 to 100% of Full-Scale Range) Maximum Error (Reading–Actual):
50.0 to 199.9 V range: ±0.006 (R-115 V)
±0.1 V and 50 to 650 V range: ±0.006 (R-230 V) ±1 V Span Tempco: ±0.01% of reading/°C Step Response: 1 s Warmup to Rated Accuracy: 10 min
Signal Input Configuration: Half-wave average, RMS-calibrated Zero: Automatic Frequency: 49 to 440 Hz
Display Type: 7-segment, red LED Height: 14.2 mm (0.56") Symbols: 22.214.171.124 Decimal Points: Three positions programmable internally or at connector, 10 mA average sink Overrange Indication: Three least-significant digits blank
Power AC Voltages: 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
Environmental 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 Read Rate: 2.5/s Integration Period: 100 ms
Digital Controls HOLD and TEST Inputs: TTL or 5 V CMOS compatible
Mechanical 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
† All prices on this site are shown in Singapore Dollars.
Part Number Builder
Model select from: DP301AN for 3-1/2 digit AC power line monitor
Input Range select from: -AC5 for 50 to 199.9 Vac (includes D4 connector) -AC6 for 50 to 650 Vac (includes D4 connector)
Power options select from: Nothing(leave field blank) for 115 Vac 50/60 Hz power -C1 for 230 Vac 50/60 Hz -C3C for Isolated 9 to 32 Vdc -C3E for Isolated 26 to 56 Vdc
Add-On Option select from: Nothing(leave field blank) for red LED display -G for Green LED display
Note: All combinations may not be valid, check spec sheet for valid part numbers.