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wattmeter & nbsp; D5064 & nbsp; for active power measurement in single-phase ac electrical circuits and & nbsp; DC. . The moving part of the instrument is attached on extensions Calm & ndash; liquid.
Maximum permissible wattmeter additional error caused by the deviation of the voltage at 20% of its nominal value at a constant value of the measured power is equal to 0.5% of the final value of the measuring range.
Maximum permissible wattmeter additional error caused by the frequency deviation from the upper limit of the normal range of frequencies to any frequency value in the operating frequency range is + 0.5% of the final value of the measurement range.
Maximum permissible additional wattmeters error caused by a change in temperature from normal ambient (20 + 2) C and any temperature within the operating range is + 0.5% of the final value of the measurement range for every 10 C temperature measurement.
Settling time wattmeter readings does not exceed 4 seconds at a temperature (20 + 2)
product Characteristics:.
accuracy 0,5
Nominal voltage, V 30; 75; 150; 300; 450; 600
Rated current 0.5 A; 1
Normal frequency region of 45 Hz - 65
Working frequency region of 65 Hz - 500
Rated power factor of 1
Nominal parallel circuit current, mA 3
serial circuit power consumption in the normal region frequently in & middot; a 0.415
