Description:
The AcuDC 243 is a 72 x 72mm panel-mount DC power and energy meter for monitoring and controlling DC systems in renewable energy, EV charging, battery, telecom, transportation and power-distribution applications. It measures DC voltage, current, power, energy and ampere-hours bi-directionally, with 0.2% voltage/current and 0.5% power/energy accuracy. Current can be measured directly up to ±10A or through external shunts or Hall-effect sensors up to ±50,000A. Options include RS485 Modbus-RTU (C), data logging (D) and plug-in I/O modules with digital inputs plus analog, relay or digital outputs.
Key Features:
Measures DC voltage, current, power, energy and ampere-hours; bi-directional for solar PV net metering
0.2% accuracy on voltage and current, 0.5% on power and energy (0.2% power/energy available on request)
Direct voltage input to 1000Vdc, or via Hall-effect sensor
Current direct input 0–±10A, or via shunt (50–100mV) or Hall-effect sensor up to ±50,000A
Cable loss compensation for current, voltage, power and energy
Multi-function LCD display
Optional RS485 Modbus-RTU communications (option C)
Optional data logging (option D): three log files, 1-minute intervals, about 4 months of storage
Plug-in I/O modules X1–X5: 2 digital inputs plus analog, relay, digital or ±15Vdc outputs
Compact 72 x 72mm DIN panel mount format
Technical Specifications:
Model: AcuDC 243-1000V-A0-P1-X1-C-D – as above plus X1 I/O module: 2 digital inputs + 2 analogue outputs (4-20mA / 0-20mA)
Voltage input: 0–1000V direct (options 1000V/600V/300V/60V), or 0–9999V via Hall-effect sensor (5V option); 2MΩ input impedance
Current input: A0 direct 0–±10A (0.01A pickup); A1 shunt 50–100mV; A2 Hall sensor 4–20mA; A3 Hall sensor 0–±5V/±4V; range to ±50,000A
Accuracy: voltage 0.2%, current 0.2%, power 0.5%, energy 0.5%
Resolution: 0.001V, 0.001A, 0.001kW, 0.0001kWh
Power supply: P1 100–240Vac 50/60Hz or 100–300Vdc; P2 20–60Vdc; 3W typical
Communications (C): RS485 Modbus-RTU, 2-wire shielded twisted pair, 1200–38400bps, 2500Vac isolation
Digital inputs (I/O modules): 2 x dry contact, 20–160Vac/dc, 100Hz max, SOE 2ms, 2500Vac isolation
Relay output (X3): Form A, 250Vac/30Vdc, 5A resistive, 10ms, 2500Vac isolation
Digital output (X4): Photo-MOS, 0–250Vac/dc, 100mA, 25Hz max
Analog output (X1/X2): 0–20mA/4–20mA or 0–5V/1–5V, 0.5% accuracy, 500Vdc isolation
Data logging (D): voltage, current, power, energy, Ah, DI count at 1-minute intervals, approx. 4 months
Display: LCD
Lead Time:
1 - 3 Days.
