24
Power Quality Analyzer Model 3945-B
Factors affecting accuracy
(% of the output signal)
Conditions
Range
Error
Ambient temperature
14° to 131°F (-10° to 55°C)
≤
200 ppm/K or
0.2% per 10K
Relative humidity
10° to 35°C 85%
< 0.2%
Frequency response
40Hz to 3kHz
40Hz to 1kHz: <0.7%
1 to 3kHz: <2%
Positions of the cable in the jaws
–
<0.5% to 50/60Hz
Adjacent conductor carrying a
60Hz AC current
Conductor in contact with
the sensor
≤
15mA/A
3.9 AC Current Probe AmpFlex
®
Probe
(3945-B accuracy included)
When installing probes, face the arrow on the probe in the direction of
the load.
Nominal Range:
3000A
AC
Measurement Range:
10A to 6500A
AC
max
Currents below 9A will be displayed as zero with this probe.
Probe Output Signal:
140mV
AC
/3000A
AC
at 50Hz
NOTE:
Output is proportional to the amplitude and frequency of the measured current.
Sensor:
Length = 24" (610mm); Ø = 7.64" (190mm)
Length = 36" (910mm); Ø = 11.46" (290mm)
Safety:
EN 61010-1 and 2, Pollution Degree 2,
600V CAT IV, 1000V CAT III
Reference Conditions:
Ambient temperature
64 to 82°F (18 to 28°C)
Humidity
20 to 75% of RH
Position of conductor in the sensor
Centered
Continuous magnetic field
<40A/m (earth’s magnetic field)
External alternative magnetic field
None present
External electric field
None present
Frequency
10 to 100Hz
Type of signal measured
Sinusoidal