Intro

Features

Communication with Host

Communication with Host

This latest generation of revenue meters supports the Modbus protocol over the RS485 interface for remote auto meter reading, some units even have a built-in relay for remote power disconnection and restoration

Pass-through and external CT wiring

Load Wiring

Pass-through: The live wire of the load is directly connected into the meter, this type of connection is limited to 80 amperes.

External CT: For loads greater than 80 amperes, external CTs are used. The load is passed through the primary, while the secondary 5A output of the CT is connected to the meter.

Comparison

Every submeter can communicate through the Modbus/RTU protocol over an RS485 communication interface.
Energy submeters-single phase, three-phase with or without built-in relays

DEM720

DEM730 revenue meter
Model: DEM720
Description: Digital kWh Meter with Communication (pass-through)
Phase/Wire: Single Phase Two Wire
Rated Voltage: 110Vac or 220Vac (options)
Rated Current: 50A
Communication: RS485 Modbus 8/n/1
Applications: Manual meter reading, remote auto meter reading

DEM510

DEM510C revenue meter
Model: DEM510
Description: Digital kWh Meter with Communication (pass-through)
Phase/Wire: Single Phase Two Wire
Rated Voltage: 110Vac or 220Vac (options)
Rated Current: 50A or 80A (options)
with built-in relay
Communication: RS485 Modbus 8/n/1
Optional Features: Prepaid card reader, remote power control, stored value meter
Applications: Remote auto meter reading, remote power control, prepaid meter, stored value meter

DEM730

DEM730 revenue meter
Model: DEM730
Description: Digital kWh meter with communication (pass-through)
Phase/Wire: Single Phase Three Wire
Voltage Rating: 110/220Vac
Current Rating: 50A
Communication: RS485 Modbus 8/n/1
Applications: Manual meter reading, remote auto meter reading

DEM540

DEM540 revenue meter
Model: DEM540
Description: Digital kWh meter with communication (pass-through)
Phase/Wire: Single Phase Three Wire
Voltage Rating: 110/220Vac
Current Rating: 50A or 80A (options)
with built-in relay
Communication: RS485 Modbus 8/n/1
Optional Features: Prepaid card reader, remote power control, stored value meter
Applications: Remote auto meter reading, remote power control, prepaid meter, stored value meter

DEM610

DEM600 revenue meter
Model: DEM610
Description: Digital kWh meter with communication
Voltage Rating: 3 Phase 4 Wire 120/208Vac (option)
3 Phase 4 Wire 220/380Vac (option)
3 Phase 3 Wire 220Vac (common 3 phase 3 wire 220Vac/380Vac)
Current Rating: 10A for use with external regular 5A output CT (option)
80A pass-through (option)
Communication: RS485 Modbus 8/n/1
Applications: Manual meter reading, remote auto meter reading

DFM630

DFM630 revenue meter
Model: DFM630
Description: Digital kWh meter with communication
Phase/Wire: 3 Phase 4 Wire 120/208Vac (option)
3 Phase 4 Wire 220/380Vac (option)
3 Phase 3 Wire 220Vac (common 3 phase 4 wire 220/380Vac)
Current Rating: 10A for use with external regular 5A output CT (option)
80A pass-through, built-in relay (option)
100A pass-through, built-in relay (option)
Communication: RS485 Modbus 8/n/1
Optional Features: Prepaid card reader, remote power control
Application: Remote auto meter reading, remote power control, prepaid meter, demand response

Remote Display Unit

Since every bit of floor space in a stall is precious, the meter is installed in an out the way place like the ceiling, hence the need for a separate display unit to show the meter reading.

Remote Display Unit

Reliability

Test Reports