CW10 Clamp-on

  • YOKOGAWA

CW10 Series Clamp-on Power Meter

600kW Clamp-On Power Meter
for Electrical and Maintenance Applications

Yokogawa CW10 Clamp-on Power Meters

Features

  • AC / DC Power up to 600 kW
  • True RMS for AC
  • Harmonics 1st to 25th order
  • Power fluctuation using the ACA Inrush and Peak hold functions
  • AC / DC Voltage max. 1000 V
  • AC / DC Current max. 600 A
  • Frequency, Resistance, Continuity, Diode check, Power factor
  • Up to 9999 counts, approx. 37mm max. diameter of measurable conductor (the jaw opens approx. 45mm max.)
  • CATIV 600V and CATIII 1000V compliant
  • Backlight on the display area turns on and a white LED automatically illuminates the front of jaw when clamping
  • Non-contact Voltage Detection (Red LED lights up on detection)
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Functions

  • Backlight on the display area turns on and a white LED automatically illuminates the front of jaw when clamping
  • Non-contact Voltage Detection (Red LED lights up on detection).
  • Easy Operation with the Navigator key
  • Low Pass Filter, Phase Detection, AC / DC Auto Sense.

Description

The CW10 Series combines the basic functionality of a standard clamp on tester, digital multimeter, and power monitor to initially diagnose maintenance and electrical issues. Quickly analyze the performance of motors, generators and other power related equipment. Use the Yokogawa WT series of power meters to further diagnose applications and components with greater detail.

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The CW10 allows the technician or maintenance personnel to measure 600 A AC/DC, 1000 V AC/DC, 600 kW AC/DC, power factor, total harmonic distortion, harmonics from 1st to 25th order, resistance, and frequency. Other measurement and diagnostic capabilities include phase rotation, voltage detection, continuity check, diode test, inrush current and low pass filter.

The CW10 possesses a joystick that allows the user to easily select the preferred diagnostic function. The display is backlit when clamping and contains a 3.5 digit and bar graph display. The CW10 meets CAT IV 600 V and CAT III 1000V safety standards and is CE rated. Standard accessories provided with the unit are (1) 9V battery, test leads, soft case, and instruction manual. Optional accessory is alligator test leads.

  • Product Literature
  • General Specifications
Literature and Technical Information
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Test and Measurement
++ CW10 CLamp-On Power Meter Specification sheet
   
Model: Yokogawa CW10
Accuracy
Accuracy: Accuracy: ±(% of reading + digits) @ 23± 5°C, 80%RH or less
Specific Accuracies Range Reading Accuracy
Voltage      
DC Voltage: 100 V -1000 DCV 99.99 – 999.9 DCV 0.7% + 2
AC Voltage: 100 V -1000 ACV 99.99 – 999.9 ACV 1.0% + 5
(1000 V 999.9 V 50 ~ 500Hz)
LPF AC Voltage: 100 V -1000 ACV 99.99 – 999.9 ACV 50 ≤ f ≤ 60Hz: 1.0% + 5"
60 < f ≤ 400Hz: 5.0% + 5"
Current     0-100 0-600
DC Voltage: 100 V – 600 DCA 99.99 – 600.0 DCA 1.5% + 20 1 1.5% + 5*
AC Voltage: 100 V – 600 ACA 99.99 – 600.0 ACA 50 ≤ f ≤ 60Hz : 1.5% + 5*
60 < f ≤ 400Hz : 2.0% + 5*
LPF AC Voltage: 100 V – 600 ACA 99.99 – 600.0 ACA 50 ≤ f ≤ 60Hz : 1.5% + 5"
60 < f ≤ 400Hz: 5.0% + 5"
Frequency    
100 Hz: 20.00 to 99.99 Hz 0.5% + 3
1000 Hz: 20.0 to 999.9 Hz
10 kHz: 0.020 to 9.999 kHz
Harmonic Measurement    
1st to 12th (h01- h12) 99.9 % Resolution of max. reading 5% + 10
1000 Hz: 99.9 % Resolution of max. reading 10% + 10
Inrush Current      
AC Voltage: 100 ACV 99.99 ACV 2.5% + 20
600 ACV 999.9 ACV 2.5% + 5
Active Power      
ACW
DCW		 10 kW 9.999 kW ACW: 2.5% + 11"
DCW: 2.2% + 22"
100 kW 99.99 kW
1000 kW 999.9 kW
Resistance/Continuity check      
1000 Ω 999.9 Ω 1.0% + 5
10 kΩ 9.999 kΩ 1.0% + 3
100 kΩ 99.99 kΩ
1000 Ω 999.9 Ω 1.0% + 5
Continuity check The buzzer turns on for resistances lower than approx. 30Ω. (Response time: approx. 100msec)
Power Factor    
Power Factor: -1.00~0.00~1.00 (Resolution) ±(3°+2digits)
Diode Test    
Diode Test: 0.40~0.80 V (Resolution) ±(3°+2digits)
General specifications
Display Count: 9999 / 6000
Measuring rate: 3 times / sec.
Over range indicator: “OL” or “-OL”
Auto Power Off: Approx. 15 minute
Low-battery indicator: (four steps)
Power supply: 9V alkaline battery (6LR61)
Battery life: When using alkaline battery, backlight off – Approx. 20 hours
Withstand voltage: AC 6880 Vrms 5 sec. (between the core and the case) –
AC 4300 Vrms 5 sec. (between the core and the voltage input terminals)
AC 6880 Vrms 5 sec. (between the voltage input terminals and the case)
Insulation resistance: 100MΩ or greater at 1000 VDC
(between the core and the case, the core and the voltage input
terminals and the voltage input terminals and the case)
Magnetic Shielding: DC, self-shielding
AC, soft iron shielding
Insulation Level: Operating — 600 volts
Hi-pot — 5000 volts rms terminals to case for
one minute
Compliant standards:
Safety standards: EN 61010-1, EN 61010-2-032
1000V CAT.III, 600V CAT.IV
EN 61010-031 (the test leads)
Pollution degree 2, Indoor use, Altitude 2000m or less
EMC standards: EN 61326-1, EN 61326-2-1, EN 61326-2-2,
EN 55011
Environment
Operating Temp.: 0 ~ 50 °C (with no condensation
Storage Temp: -10 to 50 °C, 80% RH or less (remove the battery)
Relative Humidity: ≤ 80% RH (0 ~ 30 °C)
≤ 75% RH (30 ~ 40 °C)
≤ 45% RH (40 ~ 50 °C)
Case Dimensions
Dimensions: Approx 87.5 mm(W) x 242 mm(L) x 51 mm(D)
Dia. of mea. conductors: ϕ37mm (Maximum)
Weight: Approx. 435g (including the battery)
Accessories: Test leads 1set (Red and Black)
Carrying case
9V alkaline battery (6LR61)
User’s Manual