Clamp-on Meter Models 501 and 503
9
CHAPTER 3
SPECIFICATIONS
Accuracy is provided under the following reference conditions: 23°C ±5°C, 45
to 75% RH, 3V supply, conductor centered, earth’s magnetic field, no exter
-
nal magnetic or electrical field, sine wave 50/60 Hz. Accuracy is expressed
as ± [% of reading (Rdg) ± counts (cts)]
3.1 Electrical Specifications
3.1.1 Model 501
AC Amperes
(Auto-ranging)
Range
Measurement Resolution
Accuracy
40A
0.05 to 39.99A
0.01A
50 to 60Hz: 1.9% of Rdg ± 5cts
60 to 500Hz: 2.5% of Rdg ± 5cts
400A 40.0 to 400.0A
0.1A
Overload protection: 600Arms
AC Volts
(Auto-ranging)
Range Measurement Resolution
Accuracy
Protection
400V
0.5 to 399.9V
0.1V
50 to 60Hz:
0.8% of Rdg ± 5cts
60 to 500Hz:
1.5% of Rdg ± 5cts
600Vrms
600V
400 to 600V
1V
Input Impedance: 1MΩ
DC Volts
(Auto-ranging)
Range Measurement Resolution
Accuracy
Protection
400V
0.2 to 399.9V
0.1V
1% Rdg ± 2cts
600Vrms
600V
400 to 600V
1V
Input Impedance: 1MΩ
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