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6
TRMS Clamp-on Meter Model 502
CHAPTER 3
SPECIFICATIONS
Accuracy is provided under the following reference conditions:
23°C ±5°C, 45 to 80% RH, True RMS for ACV and ACA accuracy
are specified from 5% to 100% of range, crest factor 1.4 <CF <3
at full scale & CF <6 at half scale.
3.1 Electrical Specifications
AC Amperes
(Auto-ranging)
Range
Res
Accuracy
40A
0.01A
50 to 60Hz: 1.9% of Rdg ± 5cts
60 to 500Hz: 2.5% of Rdg ± 5cts
400A
0.1A
Overload Protection:
600Arms
AC Volts
(Auto-ranging)
Range
Res
Accuracy
Input Impedance
400V
0.1V
50 to 500Hz:
1.5% of Rdg ± 5cts
1MΩ
600V
1V
Overload Protection:
600Vrms
DC Volts
(Auto-ranging)
Range
Res
Accuracy
Input Impedance
400V
0.1V
1% Rdg
± 2cts
1MΩ
600V
1V
Overload Protection:
600Vrms
Resistance
(Ω)
Range
Res
Accuracy
Max Test Voltage
400Ω
0.1Ω
1% Rdg ± 2cts
1.5V
DC
Overload Protection:
600Vrms
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