• Compact and light weight body with large back-lit LCD.
• Current clamps in a range of sizes (50 A, 200 A, 500 A, 700 A,
  and 1000–3000 A current clamps).
• Support for large capacity ATA flash memory (equipped with PC card slot).
• Data can be saved at from 1 second.
• Wiring error check function.
• Two or Three load system.
• Simultaneous measurement of multiple use possible by external control terminal.
• The CW120 Series can be connected to a PC's RS-232 port to analyze data.
• Parameters setting tool (Toolbox) is included to set measurement conditions through a PC.
• Support for a variety of connection types and CAT III 600V. The CW120 covers single-phase 2-wire to three-phase 3-wire, single-phase 2-wire to three-phase 4-wire and measurements possible on systems up to 495 V.

CW120 and CW140 Series Datasheet (PDF)
(documents are in PDF format and will open in a new window)

General Information

Measurement Function

V/A/Active power/Reactive power/Power factor (lead lag) /Frequency/  Active electric energy/Regenerative electric energy (only on data saving)

Input Voltage

150/300/450V Range (CAT III 600V) Max: 450V +10%

Current

5/10/20/50/100/200/500/1000/3000A (dependant on clamp probe used)

Wiring Method

CW120: Single-phase 2-wire, Single-phase 3-wire, 3-phase 3-wire, and

Single-phase 2-wire 2-load system

CW121: Single-phase 2-wire, Single-phase 3-wire, 3-phase 3-wire, and

3-phase 4-wire, Single-phase 2-wire 2 or 3-load system

Accuracy

1.2% (0.8% of reading + 0.4% range) (dependant on clamp probe used)

External Dimensions

117mm (W) x 161mm (H) x 51mm (D)

Weight

Approx 600g

Power

100V to 240V AC (CAT II)