Spec Sheet


CW240
Clamp-on Power Meter



2004.10.18 2nd (MC)
V Range
: 150/300/600/1000
A Range
: Minimum 200.0mA96036

Maximum 3000A (96034/35)
Measuring Mode
: All items can be measured at the same time
Instantaneous Value (Wave form) / Electric Energy /Demand / Harmonics / Voltage Fluctuation
Wiring : 1 phase 2W, 1 phase 3W, 1 phase 3W3i (Neutral line current)

3 phase 3W2i, 3 phase 3W3i (3-wattmeter method), 3 phase 4W,

3 phase 4W4i (Neutral line current)
Multiple System Load Measurement :

1 phase 2W X2/ X3/ X4, 1 phase 3W X2, 3 phase 3W X2,

SCOTT Wiring (1 phase 3W +3 phase 3W)
Data Saving : PC Card, Internal Memory (1MB)
Data Saving Interval :Standard 1/2/5/10/15/30 sec 1/2/5/10/15/30/60 min

Short time 1 Cycle/0.1/0.2/0.5 sec (Only for Instantaneous Value)
Function : Leak Current

Analog I/O

Wiring & Setting Check

Display Hard Copy, Instantaneous Value Data Saving

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Input

Item
Voltage (V)
Input type
Resistive potential division
Rated Value (Range)
150.0/300.0/600.0/1000V
96036 (2A)
200.0/500.0mA/1.000/2.000A
96033 (50A)
5.000/10.00/20.00/50.00 A
96030 (200A)
20.00/50.00/100.0/200.0 A
96031 (500A)
50.00/100.0/200.0/500.0 A
96032 (1000A)
200.0/500.0 A/1.000 kA
96034 3000A range
300.0/750.0 A/1.500/3.000 kA
2000A range
200.0/500.0 A/1.000/2.000 kA 1000A range
100.0/200.0/500.0 A/1.000 kA
96035 3000A range
300.0/750.0 A/1.500/3.000 kA 300A range
30.00/75.00/150.0/300.0 A
Phase/Wiring Measurement
Number on measurement system
Input resistance
Approximately 1.3M
Maximum allowed
1000Vrms
96036 (2A)
20Arms
continuous input
96033 (50A)
130Arms
96030 (200A)
250Arms
96031 (500A)
625Arms
96032 (1000A)
700Arms
96034 3000A range
2400Arms
2000A range
2400Arms 1000A range
1200Arms
96035 3000A range
3600Arms 300A range
360Arms
AD conversion
Common Voltage
1P2W: 4 system load/ 1P3W: 2 system load/ 3P3W2i: 2 system load
Approximately 100kCW240
Simultaneous inversion of Voltage/Current input, PPL synchronism
Current (A)
Clamp detection

1P2W/1P3W/1P3W3i(Nutral line current)/3P3W2i2-wattmeter method/3P3W3i3-
wattmeter method),3P4W/3P4W4i(Nutral line current, SCOTT wiring 1P3W + 3P3W)

Measurement function

Parameter
Voltage
Method
Frequency range
Crest factor
Accuracy
±0.2%rdg.±0.1%rng. 96030, 96031, 96033, 96036 ±0.6%rdg.±0.4%rng.
96032, 96034, 96035
±1.0%rdg.±0.8%rng.
Power factor effects 96030 ±1.0%rng.45 to 65HzPower factor = ±0.5
Except 96030
±2.0%rng.(45 to 65HzPower factor = ±0.5
Effect of reactive factor 96030 ±1.0%rng.45 to 65HzPower factor = ±0.5
Except 96030
±2.0%rng.(45 to 65HzReactive factor= ±0.5
Valid input range
Display Range
Temperature coefficient
±0.03%rng/
Display update period
rdg: reading rng: range
Current/Active Power/Reactive Power1Use reactive-power meter method
Voltage/Current: 0.4 to 130% for each range Zero suppress less than 0.4%)
Electric PowerActive, Reactive, Apparent: 0 to 130% for each range Zero suppress if less
than 0.17% of range rating)
Harmonics Level: 0 to 130% for each range
±0.05%rng/
Approximately 0.5 second
Digital sampling
45Hz to 65HzSelect measurement element from U1, U2 or U3)
3 for rated input(1.8 for 1000 range)
5 to 110% for each range Max 100% for 1000 range




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Frequency measurement

Measurement input : Voltage input: Select from U1,U2 and U3
Measurement frequency range : 45 to 65 Hz
Display Range : 40.00 to 70.00 Hz
Accuracy : ±0.1%rdg.±1dgt. When sine wave input is 10 to 130% of voltage range
Low-pass filter function : Cutoff frequency : 300Hz / On/Off setting
Electric energy measurement
Measuring element : Active power, Recursive power, Lag reactive power and Lead reactive power
Measurement accuracy : Measurement Accuracy is +/- 1dgt for Active Power & Reactive Power
Measuring range : Active power
(By setting of Range, Consumption 0.00000 mWh to 999999 GWh
VT ratio and CT ratio) Regenerative -0.00000 mWh to -999999 GWh
Reactive power
Lag 0.00000 mvarh to 999999 GVarh

Lead -0.00000 mvarh to -999999 Gvarh"
Display digit setting function : Auto setting by rated electric energy, Set minimum resolution, Select from minimum resolution
movement by integrated value
Integration time accuracy : ±20ppm(Typ. , 23

Demand mode
Measurement element : Active Power consumption, Reactive PowerLag,
Power factor Demand value within each interval time,
Active electric energy Consumption, Regenerative,
Reactive electric energy Lag/Lead Electric energy within each interval time

Max demand (Electric power consumption demand
value from beginning of logging measurement and its occurrence time
Measurement accuracy : Active power, each measurement accuracy Reactive power = +/- 1 dgt.

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Harmonics mode

Method : PLL synchronization
Measurement frequency range : Fundamental wave frequency 45 to 65
Number of analysis order : 1st - 50th
Window width : 1 period
Window function : Rectangular
Number of data analysis : 128 points
Analysis rate : 1 time / every 16 period
Analysis item : Harmonics level: Each harmonic level of Voltage, Current and Electric power

Relative harmonic content : Each relative harmonic content of Voltage, Current and Electric power

Harmonic phase angle: Each harmonic phase angle of Voltage, Current and Electric energy


Select fundamental wave for Voltage and Current or select fundamental wave against U1
Total value : Total value up to 50th harmonic of Voltage, Current, Electric energy and Power factor

Total harmonic content : Voltage and Current (THD-F or THD-R)
Accuracy
: Harmonics level
Current / Electric Power
1 to 20th : ±1.5%rdg.±1.5%rng.
16th or later order for 96031 21 to 30th : ±2.0%rdg.±1.5%rng.
All order for 96032
31 to 50th : ±3.0%rdg.±1.5%rng.
Reference value : Relative harmonic content




+/- 2 dgt by computing from the harmonic level

: Harmonic phase angle

Accuracy assurance range is more than 5% of the range for both harmonic voltage of each
order and current level


1to 20th order±5°


20 to 50th order: +/-20 0.3°×k+1° k order
Display data
: List, Bar graph (linear or log) and Vector
Waveform measurement function

Measurement elements
: Voltage/Current waveform at inphase, All voltage waveform, Select from all current waveform
Change of magnification
: 1/3 to 20 times against the rating
Display data
: 1 waveform
Voltage fluctuation measurement function

Measurement elements
: Voltage Dip/Voltage Swell/Voltage failure
Measurement method
: Detect from voltage RMS value of 1 waveform
Threshold value/ Hysteresis
: Set % against to reference voltage
Accuracy
: Same as voltage RMS accuracy
Detection period : Period that exceeded threshold value
Display data
: Data, Time, Voltage RMS value and detection period
number of event : 100


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Display function

Display : 5.7 inches STN monochrome LCD (320 x 240 pixels) with backlight
Backlight
: Auto off, ON/OFF
Contrast
: Automatic compensation and 8 level setting by ambient temperature
Display digits
: Except electric power: 4 digits
Electric energy: 6 digits
Languages
: English/French/German/Italian/Spanish/Korean/Japanese
French,German,Italian,Spanish and Korean languages will be added soon.
Averaging function : Moving average method/ select from 2/5/10/20 times
Display hold function
: Hold/Release
Save and Print function
Manually or Automatically save/print

Memory
: Internal memory: 1MB or PC card
Print : Dedicated printer (RS-232 )
Save and print data : All measurement item, /Set value/Screen
Save and print interval : Standard interval:


1/2/5/10/15/30sec. /1/2/5/10/15/30/60min.

Less than 30 second interval, it impossible to output/print for harmonics measurement and waveform data.

Short time interval:

0.1/0.2/0.5second for each waveform

Data