22
Power Quality Analyzer Model 3945-B
Accuracy
Primarycurrent(AAC) 10 to 100A 100 to 6500A
Accuracy(%oftheoutputsignal)
≤3% ± 1ct ≤2%
Phaseshift(°)
≤0.5° ≤0.5°
Factors affecting accuracy (% of the output signal)
Conditions Range Error
Temperature -4to140°F(-20to60°C) 0.2% per 10°C
Relative humidity 10 to 90% RH 0.5%
Frequency response 10Hz to 20kHz 0.5%
Position of conductor
in clamp
Any position on internal
perimeter of the
undeformed sensor
2%
(4%nearlatchingsystem)
Adjacent conductor
carrying an AC current
Conductor in contact with
the sensor
1%
(2%nearlatchingsystem)
3.10 AC Current Probe MR193 Probe (3945-B accuracy included)
NOTE: When installing probes, face the arrow on the probe in the direction of
the load.
Nominal Range: 1000AAC, 1400ADCmax
Measurement Range: 10A to 1000AAC, 10A to 1300APEAKAC+DC
NOTE: Currents <1AAC/DC will be displayed as zero with this probe.
Probe Output Signal: 1mV/A
Maximum Cable Diameter: One1.6"(42mm)ortwo0.98"(25.4mm)or
twobusbars1.96x0.19"(50x5mm)
Safety: EN 61010-2-032, Pollution Degree 2, 300V Cat. IV, 600V Cat. III,
Reference Conditions:
Ambient temperature 64to82°F(18to28°C)
Humidity 20 to 75% of RH
Battery voltage 9V ±0.1V
Position of conductor in the sensor
Centered
Magneticeld DCmagneticeld
ACExternalmagneticeld
None
Externalelectriceld
None
Frequency ≤65Hz
Type of signal measured
Sinusoidal