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4.4 VARIATIONS IN THE RANGE OF USE
Quantity of
influence
Temperature
Relative humidity (10 to 85) % RH
Frequency
Position of the
conductor 0.79 in
(20 mm) in
diameter
Adjacent
conductor
carrying a 50 Hz
AC current
External 400 A/m
field at 50 Hz
Common mode
rejection
Remanence
AC/DC Current Probes MR417 & MR527
Range of influence
(14 to 131) °F
(-10 to +55) °C
(10 to 400) Hz
400 Hz to 7 kHz
(7 to 30) kHz
Conductor 0.91 in
(23 mm) from the
clamp
Cable centered
600 V between
jacket and
secondary
Error in % of reading
Typical
MR417:
50 Adc: 1.2 A
100 Adc: 2.3 A
200 Adc: 3.4 A
400 Adc: 4.8 A
600 Adc: 5.5 A
800 Adc: 5.8 A
MR527:
100 Adc: 2.8 A
200 Adc: 3.5 A
400 Adc: 5 A
800 Adc: 5.3 A
1200 Adc: 5.7 A
1400 Adc: 5.8 A
Maximum
Drift of the zero
± 100 mA/°C
Drift of the gain
3 %
0.5 %
1 %
3.5 %
see curves
0.5 %
10 mA/A
1.3 A
90 dB A/V at 50 Hz
27
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