ACREL DIN Rail DC Power Meter 1000V with RS485
ACREL DIN Rail DC Power Meter 1000V with RS485 is a compact DIN rail DC energy meter for measuring voltage, current, power and positive and negative energy in DC systems. It supports shunt and Hall sensor current inputs, DC voltage measurement up to 1000 V, RS485 communication and Modbus-RTU. The meter is designed for DC charging infrastructure, telecommunications base stations, solar photovoltaic systems and other DC power monitoring applications.
DJSF1352-RN-2/S:
Power Supply: Standard auxiliary power supply of AC/DC 85–265V.
Suffix Meanings: -2 indicates dual DC input channels (common for 2-gun EV chargers); /S indicates enhanced accuracy specifications or specific current input configurations (0–75mV shunt). [1, 2, 3]
DJSF1352-RN-2/S-P1:
Power Supply: Low-voltage auxiliary power supply of DC 24V or 48V (denoted by the -P1 suffix).
Shared Features: Retains the dual-channel input (-2) and specific accuracy/input configuration (/S) of the base model, but is built to run on telecommunication or industrial low-voltage auxiliary power rails instead of standard mains AC/DC voltage. [1, 2]
The ACREL DIN Rail DC Power Meter 1000V with RS485 is designed for monitoring and measuring electrical parameters in DC power systems. It can measure DC voltage, current, power and positive and negative energy, providing information for both local observation and integration into a wider measurement and control system.
The meter accepts current measurement through a 0-75 mV shunt input or compatible Hall sensor inputs. Voltage measurement supports DC 0-100 V and DC 0-1000 V input ranges. A Class 0.5 accuracy rating is specified by Acrel for the meter.
RS485 communication provides connection to monitoring and control equipment, with support for Modbus-RTU, DL/T 645-2007 and DLT698 communication protocols. The unit also provides one power pulse output.
How it works
- The meter receives DC voltage and current measurement signals from the monitored circuit.
- Current can be measured using a 0-75 mV shunt or supported Hall sensor inputs.
- The meter calculates and displays electrical parameters including voltage, current, power and energy.
- Positive and negative DC energy can be measured for systems where energy flow direction needs to be monitored.
- Measured information can be accessed through the RS485 interface for connection to industrial control equipment and computers.
Why choose this product
- Provides measurement of key DC electrical parameters in a single DIN rail mounted instrument.
- Supports both shunt and Hall sensor current measurement methods.
- Offers DC voltage measurement up to 1000 V.
- Provides RS485 communication for integration with monitoring and control systems.
- Compact 2-pole format is suitable for space-conscious electrical panels.
- Designed for DC charging, telecommunications and solar photovoltaic monitoring applications.
Benefits
- Helps operators monitor DC power consumption and energy flow.
- Provides local measurement through the integrated LCD display.
- Allows measured information to be incorporated into a larger monitoring or control system.
- Supports applications where positive and negative DC energy need to be distinguished.
- DIN rail installation simplifies integration into compatible electrical panels.