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Chapter 1 Unit's Outline
KW2G Eco-POWER METER is the wattmeter that can measure electric power, current, voltage, PF and
so on with combination of one main unit and expansion units (power measurement, power
measurement + pulse output).
By connecting main unit and expansion unit (power measurement, power measurement + pulse output),
it can measure up to 8-circuit (16-circuit of single-phase two-wire system).
By connecting expansion unit of pulse input type, it can measure pulse signal from a sensor.
By connecting expansion unit of analog input type, it can measure digital conversion value
(voltage/current) from a sensor.
1.1 Unit's Name and Model Numbers
●Main unit
Product name
KW2G Eco-POWER METER
Main unit
KW2G-H Eco-POWER METER
Main unit SD card type
Note) AKW20x0GB and AKW20x0G (without B) are not compatible.
Please be aware that only AKW20x0GB and AKW4x0xB (CT) can be used together.
Connecting method (common)
●Expansion unit
Product name
Expansion unit
(Power measurement)
Note)
It is impossible to measure by only the expansion unit.
Be sure to connect expansion units to the main unit.
AKW2110GB and AKW2110G are not compatible.
Please be aware that only AKW2110GB and AKW48xxB (CT) can be used together.
1.2 Combination devices
Product name
Expansion unit
(Power measurement
+ Pulse output)
Expansion unit
(Pulse input)
Expansion unit
(Analog input)
Note) AKW2160GB and AKW216 0G are not compatible.
Please be aware that only AKW2160GB and AKW4x0xB (CT) can be used together.
*In this manual, we explain the usage of 'KW2G Main unit', 'KW2G-H Main unit' and 'Expansion
unit (Power measurement)'.
CT Connector color
Blue
White
Blue
White
・Power supply terminal
(Voltage input terminal)
・Pulse I/O terminal
・RS485 communication terminal
・Current transformer(CT)
・USB communication
Model No.
AKW2110GB
(connector color; Blue)
AKW2110G
(connector color; White)
Model No.
AKW2160GB
(connector color; Blue)
AKW2160G
(connector color; White)
AKW2152G
AKW2182G
Model No.
AKW2010GB
AKW2010G
AKW2020GB
AKW2020G
M3.5＋screw
M3＋screw
M3＋screw
Connector
Connector
Connecting method
Current transformer (CT)
*Connect to main unit with the connector.
Connecting method
Current transformer (CT)
Pulse output terminal
*Connect to main unit with the connector.
Pulse input terminal
*Connect to main unit with the connector.
Analog input terminal
*Connect to main unit with the connector.
1
KW2G / KW2G-H Eco-POWER METER
Log function
Not available
Available
Connector
Connector
M3＋ screw
M3＋ screw
M3＋ screw
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