DC Energy Meter

The DC Energy Meter provided by us is used for measuring electrical energy consumed by multiple loads that are connected to D.C. Voltage source. Furthermore, the DC Energy Meter is ideal for measuring the drop of voltage across current shunt, input voltage and observing Current, Voltage, KW & KWH with the usage of push button switches.

Features
7 digit LCD display of KWH
User selectable Shunt rating
Reset of KWH for every channel protected by password
Individual channel can be enabled or disabled
Shunt can be placed either in +VE or -VE side of the DC Power Source
Energy values & settings retained after power failure
Remote Monitoring of parameters
Display of DC Current, Voltage, Power (KW) & KWHr for 7 channels
Soft calibration - no trimpots
Optional Real Time Clock
Operates from battery being monitored (optionally it can be operated from a different auxiliary power supply)
Optional- RS 485 Modbus link for PC connectivity
Data on Modbus protocol can be in "Integer" format or IEEE 754
User friendly LCD display messages

Technical Specifications
Electrical
Input Voltage : Nominal Voltage Range
12V (10 to 19V), 24V (20 to 38V)
48V (40 to 76V), 96V (80 to 152V)
110V (90 to175V), 220V (180 to 350V)
Input Current : Nominal Shunt value 75mV (50 to 100)
Operating range 5mV to 100mV
Auxiliary Supply : Same as input voltage or optionally any Voltage noted in the voltage range above
Measurement : 7 Channel DC KWHr
Accuracy : +/- 1 (10 % to 120 % of range)
Resolution : 0.1 KWHr
Indication
Display : 16 x 2 Character backlit LCD character size 2.95 x 4.35mm
Display parameter (four channels)
KWHr -XXXXXX.X
CURRENT- XXX.X
POWER ( KW) -XX.X
VOLTAGE -XX.X
Configurable parameters
Shunt rating- 75 mv = 10 to 1000 AMP
Baud Rate -9600 to 19200
Device/ Unit address -01 to 255
Calibration for each channel and reset of energy count provided with password protection
Protection : Reverse input polarity protection
Isolation
Between Aux-Supply and Electronics: 500 V DC for 1min
Between Current (Shunt) and Input DC potential: 500 V C for 1 min
Communication
RS 485 2 wire communication
Protocol MODBUS RTU integer, or IEEE 754
Baud rate : Settable either 9600 or 19200
Address : Settable 01 to 255
Data Retention: Energy values and settings retained after power failure
Calibration: Soft Calibration through Software
Real Time clock (RTC) : Optional
Power Consumption : < 2 Watt
Security
Password for editing of settings
Password for calibration
Environmental
Normal operating conditions. Temperature: Operating temperature: 10 C to 55 C
Relative humidity: 55% to 85%.
Dimensions
Housing : Plastic or Metal Housing 96 X 96 X 65 mm (cut out 92 x 92 mm)