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The Yokogawa CW120/ CW121 power meter is a low-cost tool to support your energy conservation efforts. Yokogawa CW120/ CW121 power meters are designed to meet user needs for simple tools capable of measuring power values and instantaneous values. Data can be saved as low as 1-second interval. This capability allows the Yokogawa CW120/ CW121 power meter to respond quickly to load fluctuations and measure transient responses in equipment.

The Yokogawa CW120/ CW121 power meter has an instantaneous value filing function ( enabling multiple data records to be saved in a single file when multiple measurements are taken) which is useful for determining equipment operating conditions. There is a wiring error check function which helps ensure that measurement operations are correct. Multiple CW120 Series units can start and stop integration simultaneously through externally controlled I/ O. The Yokogawa CW120/ CW121 power meter works even with small electric energy values. The decimal position ( number of digits following the decimal point) and the display unit ( Wh, kwh, MWh, GWh) are featured on the electric energy display.

The setting software allows you to set the Yokogawa CW120/ CW121 power meter' s measurement conditions through a PC and save measurement data on a PC when the unit is connected to the PC through an RS-232 or RS-485 port. The Yokogawa CW120/ CW121 power meter, in addition to proprietary communication, also supports MODBUS, PC-link, and Power Monitor protocols. PC-link is a protocol for Yokogawa' s temperature controllers and PLCs.

Features:
Compact& Light weight body with large back-lit LCD
Current clamps in a range of sizes( small to large diameter)
Support for large-capacity ATA flash memory
( equipped with PC card slot)
Data can be saved at from 1 second
Wiring error check function
2 or 3-load system
Simultaneous measurement of multiple use possible by external control terminal
Parameters setting tool is included to set measurement conditions through PC