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Accuracy
Primary current (A
Accuracy (% of the output signal)
Phase shift (°)
Factors affecting accuracy
Conditions
Temperature
Relative humidity
Frequency response
Position of conductor
in clamp
Adjacent conductor
carrying an AC current
3.11 AC Current Probe MR193 Probe
When installing probes, face the arrow on the probe in the direction of
the load.
Nominal Range: 1000A
Measurement Range: 10A to 1000A
Currents <1A
Probe Output Signal: 1mV/A
Maximum Cable Diameter: One 1.6" (42mm) or two 0.98" (25.4mm) or
two bus bars 1.96 x 0.19" (50 x 5mm)
Safety: EN 61010-2-032, Pollution Degree 2, 300V CAT IV, 600V CAT III
Reference Conditions:
Ambient temperature
Humidity
Battery voltage
Position of conductor in the sensor
Magnetic field
AC External magnetic field
External electric field
Frequency
Type of signal measured
26
)
AC
(% of the output signal)
-4 to 140°F (-20 to 60°C)
10 to 90% RH
10Hz to 20kHz
Conductor in contact with
, 1400A
AC
will be displayed as zero with this probe.
AC/DC
20 to 100A
≤3%
Range
Any position
the sensor
(3945-B accuracy included)
max
DC
10A to 1300A
,
AC
64 to 82°F (18 to 28°C)
Power Quality Analyzer Model 3945-B
100 to 1000A
-90° ±0.5°
Error
0.2% per 10°C
0.5%
0.5%
< 2%
(6% near latching system)
<0.7%
(6% near latching system)
PEAK AC+DC
20 to 75% of RH
9V ±0.1V
Centered
DC magnetic field
None
None
≤65Hz
Sinusoidal
≤2%
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