Power Quality Analyzer Model 3945-B
25
Accuracy
Primary current (A
AC
)
10 to 100A
100 to 6500A
Accuracy (% of the output signal)
≤
3% ± 1ct
≤
2%
Phase shift (°)
≤
0.5°
≤
0.5°
Factors affecting accuracy
(% of the output signal)
Conditions
Range
Error
Temperature
-4 to 140°F (-20 to 60°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
2%
(4% near latching system)
Adjacent conductor
carrying an AC current
Conductor in contact with
the sensor
1%
(2% near latching system)
3.10 AC Current Probe MiniFlex
®
Sensor
(3945-B accuracy included)
When installing probes, face the arrow on the probe in the direction of
the load.
Nominal Range:
1000A
AC
Measurement Range:
10A to 1000A
AC
max
Currents below 10A will be displayed as zero with this probe.
Probe Output Signal:
47µV
AC
/1000A
AC
at 60Hz
NOTE:
Output is proportional to the amplitude and frequency of the measured current.
Sensor:
Length = 10" (250mm); Ø = 2.75" (70mm)
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