Atec cw240 User Manual

Spec Sheet

CW240 Clamp-on Power Meter

Characteristics 1

Electric power analysis and power

supply quality control in a single unit.

Characteristics 2

V Range : 150/300/600/1000Ｖ A Range : Minimum 200.0mA（96036）

Maximum 3000A (96034/35)

Measuring Mode : All items can be measured at the same time

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

Instantaneous Value (Wave form) / Electric Energy /Demand / Harmonics / Voltage Fluctuation

2004.10.18 2nd (MC)

g.(

Input

Item Voltage (V) Input type Resistive potential division Rated Value (Range) 150.0/300.0/600.0/1000V

Phase/Wiring Measurement

1P2W/1P3W/1P3W3i(Nutral line current)/3P3W2i（2-wattmeter method）/3P3W3i（3- wattmeter method),3P4W/3P4W4i(Nutral line current）, SCOTT wiring （1P3W + 3P3W)

Current (A)

Clamp detection

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 ran 96035 3000A range 300.0/750.0 A/1.500/3.000 kA

　　　　 300A ran

100.0/200.0/500.0 A/1.000 kA

30.00/75.00/150.0/300.0 A

Number on measurement system

Input resistance

Common Voltage 1P2W: 4 system load/ 1P3W: 2 system load/ 3P3W2i: 2 system load

roximately 1.3MΩ

Approximately 100kΩ（CW240）

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 ran

1200Arms

96035 3000A range 3600Arms

360Arms

AD conversion

　　　　 300A ran

Simultaneous inversion of Voltage/Current input, PPL synchronism

Measurement function

Method

Parameter Voltage

Frequency range Crest factor Accuracy ±0.2%rdg.±0.1%rng. 96030, 96031, 96033, 96036 ±0.6%rdg.±0.4%rng.

Power factor effects

Effect of reactive factor －

Valid input range

Display Range

Temperature coefficient Display update period

Digital sampling 45Hz to 65Hz　（Select 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） Voltage/Current: 0.4 to 130% for each range （Zero suppress less than 0.4%) Electric Power（Active, 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 ±0.03%rn

Approximately 0.5 second

℃

Current/Active Power/Reactive Power1（Use reactive-power meter method）

96032, 96034, 96035 ±1.0%rdg.±0.8%rng.

Except 96030

±0.05%rng/

℃

96030 ±1.0%rn

±2.0%rn

96030 ±1.0%rn

±2.0%rn

.（45 to 65Hz，Power factor = ±0.5

45 to 65Hz，Power factor = ±0.5）

.（45 to 65Hz，Power factor = ±0.5

45 to 65Hz，Reactive factor= ±0.5）

: reading 　 rng: range

）

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 Power（Lag）,

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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