Atec Yokogawa-cw240 - Manual (Page 3)

3
All Rights Reserved. Copyright © 2004, Yokogawa M&C Corporation
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.