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Yokogawa Digital Power Meter Heading

Model CW120 and CW121 Clamp-On Digital Power Meter
Specifications
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General Specifications
Environmental Requirements
  Indoor usage at an altitude of 2000 meters or less.
Usage Temperature and Humidity Ranges
  0–50°C, 5–85% RH (no condensation).
Storage Temperature and Humidity Ranges
  -20–60°C, 90% RH (no condensation).
Insulation Resistance

 

 500 V DC, 50 MΩ or greater
Between voltage input terminals and case.
Between voltage input terminals and current input terminals, communication terminals, and control I/O terminals.
Between power line and case.
Between power line and current input terminals, communication terminals, and control I/O terminals.
Insulation Withstand Voltage
  5550 V AC for one minute
Between voltage input terminals and case.
3250 V AC for one minute
Between voltage input terminals and current input terminals,
communication terminals, and control I/O terminals.
2300 V AC for one minute
Between power line and case.
Between power line and current input terminals, communication terminals, and control I/O terminals.
Power Supply
  100–240 V AC ±10%, 50/60 Hz
Consumed Power
  8 VA maximum.
External Magnetic Field Effects
  Within accuracy levels at 400 A/m.
External Dimensions
  117 x 161 x 51 mm (W...H...D)
Weight
  0.6 kg
Terminals

Voltage Input

 CW120: 3 terminals Banana terminals (safety terminals)
  CW121: 4 terminals Banana terminals (safety terminals)

Current terminals (HL)

 CW120: 2 pairs Banana terminals (safety terminals)
  CW121: 3 pairs Banana terminals (safety terminals)

External control
 I/O terminals RS-485

 3 terminals (H/L/H)
4 terminals (+/-/SG/TM)M3		 Screwless terminals
Screw terminals
Connectors
  RS-232: Mini DIN 8-pin
AC power supply: 2-pin
Accessories

Voltage input probes:

 3 for CW120, 4 for CW121
  Power cord, user's manual, operation guide, Toolbox (setting software).
Safety Standards

-Voltage input line:
 

 Compliant with EN61010-1, EN61010-2-031
Overvoltage category III (Max. input voltage : 600 Vrms).

-Power line:

 

 Compliant with EN61010-1, EN61010-2-031
Overvoltage category II (Max. input voltage : 264 Vrms)
Pollution degree 2
EMC Emission
  Compliant with
EN55011, Group1, ClassA; EN61326; EN61000-3-2; EN61000-3-3
EMC Immunity
  Compliant with EN61326
 
 
Communication Functions

Electrical specifications:

 Conforms to EIA RS-232 or EIA RS-485.

Synchronization system:

Start stop synchronization.

Baud rates:

 1200, 2400, 4800, 9600, 19,200 bps.
PC Card Interface

Slot:

PC card slot TYPE II.

Compatible card:

 ATA flash memory card.

Function specifications:

 Saving measurement data, saving and reading settings data.
Faulty Wiring Checking Functions

Check details:


 

 Presence/absence of power input; check for frequency measurement range; voltage phase sequence;
presence/absence of power input; whether current clamp is reverse-connected.
Scaling Function

Settings ranges:

 

 The VT ratio and CT ratio can be set.
VT ratio: 1–10,000
CT ratio: 1–10,000 (in increments of 0.01)
External Control I/O (for RS-232 only) (RS-485 not provided for)
These input and output can be used as signals for starting and stopping integrating measurement.

Control input:
Control output:

 TTL level or contact.
TTL level.
Other Functions

 

 Clock (typical precision:±100 ppm), key lock, system reset.
 
 
Saving Items

Saving Items:
 

 Voltage, current, active power, reactive power, power factor, frequency, active electric energy, regenerative electric energy.
 
 
Display Functions

Display screen:

 Backlit segmented LCD.
Maximum number of displayed digits:

Electric energy:
Other parameters:

 6 digits.
4 digits
 
 
Range Makeup: (rated values) Current Clamp-on Probe 96030
Voltage Wiring 20.00 A 50.00 A 100.0 A 200.0 A

150.0V

 1ø2W 3.000 kW 7.500 kW 15.00 kW 30.00 kW
1ø3W

6.000 kW

15.00 kW

30.00 kW

60.00 kW
3ø3W 6.000 kW 15.00 kW 30.00 kW 60.00 kW
3ø4W 9.000 kW 22.50 kW 45.00 kW 90.00 kW

300.0V

 1ø2W 6.000 kW 15.00 kW 30.00 kW 60.00 kW
1ø3W 12.00 kW 30.00 kW 60.00 kW 120.0 kW
3ø3W 12.00 kW 30.00 kW 60.00 kW 120.0 kW
3ø4W 18.00 kW 45.00 kW 90.00 kW 180.0 kW

450.0V

1ø2W

 9.000 kW 22.50 kW 45.00 kW 90.00 kW

1ø3W

 18.00 kW 45.00 kW 90.00 kW 180.0 kW

3ø3W

 18.00 kW 45.00 kW 90.00 kW 180.0 kW

3ø4W

 27.00 kW 67.50 kW 135.0 kW 270.0 kW
 
 
Range Makeup: (rated values) Current Clamp-on Probe 96031

Voltage

Wiring

 50.00 A

100.0 A

 200.0 A 500.0 A
150.0V 1ø2W 7.500 kW 15.00 kW 30.00 kW 75.00 kW
1ø3W 15.00 kW 30.00 kW 60.00 kW 150.0 kW
3ø3W 15.00 kW 30.00 kW 60.00 kW 150.0 kW
3ø4W 22.50 kW 45.00 kW 90.00 kW 225.0 kW
300.0V 1ø2W 15.00 kW 30.00 kW 60.00 kW 150.0 kW
1ø3W 30.00 kW 60.00 kW 120.0 kW 300.0 kW
3ø3W 30.00 kW 60.00 kW 120.0 kW 300.0 kW
3ø4W 45.00 kW 90.00 kW 180.0 kW 450.0 kW
450.0V 1ø2W 22.50 kW 45.00 kW 90.00 kW 225.0 kW
1ø3W 45.00 kW 90.00 kW 180.0 kW 450.0 kW
3ø3W 45.00 kW 90.00 kW 180.0 kW 450.0 kW
3ø4W 67.50 kW 135.0 kW 270.0 kW 675.0 kW
 
 

Range Makeup: (rated values) Current Clamp-on Probe 96032
Voltage Wiring 200.0 A 500.0 A 1.000 kA  
150.0V 1ø2W 30.00 kW 75.00 kW 150.0 kW  
1ø3W 60.00 kW 150.0 kW 300.0 kW  
3ø3W 60.00 kW 150.0 kW 300.0 kW  
3ø4W 90.00 kW 225.0 kW 450.0 kW  
300.0V 1ø2W 60.00 kW 150.0 kW 300.0 kW  
1ø3W 120.0 kW 300.0 kW 600.0 kW  
3ø3W 120.0 kW 300.0 kW 600.0 kW  
3ø4W 180.0 kW 450.0 kW 900.0 kW  
450.0V 1ø2W 90.00 kW 225.0 kW 450.0 kW  
1ø3W 180.0 kW 450.0 kW 900.0 kW  
3ø3W 180.0 kW 450.0 kW 900.0 kW  
3ø4W 270.0 kW 675.0 kW 1.350 MW  
 
 
Range Makeup: (rated values) Current Clamp-on Probe 96033

Voltage

Wiring

5000 A

10.00 A

20.00 A

50.00 A

150.0V

 1ø2W 750.0 W 1.500 kW 3.000 kW 7.500 kW
1ø3W 1.500 kW 3.000 kW 6.000 kW 15.00 kW
3ø3W 1.500 kW 3.000 kW 6.000 kW 15.00 kW
3ø4W 2.250 kW 4.500 kW 9.000 kW 22.50 kW

300.0V

 1ø2W 1.500 kW 3.000 kW 6.000 kW 15.00 kW
1ø3W 3.000 kW 6.000 kW 12.00 kW 30.00 kW
3ø3W 3.000 kW 6.000 kW 12.00 kW 30.00 kW
3ø4W 4.500 kW 9.000 kW 18.00 kW 45.00 kW

450.0V

 1ø2W 2.250 kW 4.500 kW 9.000 kW 22.50 kW
1ø3W 4.500 kW 9.000 kW 18.00 kW 45.00 kW
3ø3W 4.500 kW 9.000 kW 18.00 kW 45.00 kW
3ø4W 6.750 kW 13.50 kW 27.00 kW 67.50 kW

 


 

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