8
AC/DC Current Probe Model J93
4.3 Variations in the Range of Use
Quantity of influence
Range of influence
Accuracy
Temperature
14° to 131°F (-10° to 55°C)
< 0.7% / 18°F (10°C)
Relative humidity
10 to 90% RH
< 0.7%
Frequency response
DC at 2kHz
See curve in §4.4.4
Phase shift
DC at 2kHz
See curve in §4.4.5
Position of the conductor
in the sensor
Any position
1
< ± 2%
Conductor adjacent
Conductor touching the jaws
2
Rejection > 35 dB
Battery voltage
J93: from 6.5 to 10V
± 2.25A typical
Remanence
at 5000A
dc
< 2A
Earth's magnetic field
< 0.5A
1: Test performed with a 40x30 mm² cable and a current of 3500A at 50Hz. The accuracy % is the ratio of
the maximum variation to the mean value.
2: Test performed with a current of 300A at 50Hz.
4.4 Typical Curves
4.4.1 Typical Linearity Error in AC vs Current at 50Hz
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
0.2
0.4
0
1000
2000
3000
4000
Current (A)
Error (%)
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