ELECTRICAL SPECIFICATIONS
REFERENCE CONDITIONS
Accuracies are given in the following domains of reference :
- Temperature : + 23°C ± 5°C
- Relative humidity : 45% to 75% RH
- Battery voltage : 8.5 V to 9 V
- Position of the conductor : centred in the clamp
- DC magnetic field : the earth’s field
- external AC magnetic field : none
- external electric field : none
- signal frequency : 45Hz to 65Hz
- crest factor of the signal :
√
2 (sinusoidal current)
The accuracy is expressed as a % of the reading (± %R) and in measurement counts (± count)
AC CURRENTS
Digital display
39
40
A RMS or PEAK
1st range
2nd range
Measurement
Auto
0.05A to 66.00A
60.0A to 999.9A
extent of
the display
Manual
0.05A to 99.99A
0.1A to 999.9A
Resolution
10mA
100mA
- Response time: every 500ms
Range overload
. Above 999.9A, the display indicates "OL" and the warning signal is emitted.
. On manual mode, same overload indication as above, if the current exceeds 99.99A
on the 1st range.
Analogue display
- Range 0 to 60A, resolution: 2A
Range 0 to 600A, resolution: 20A
- Response time: every 100ms
Accuracy on RMS current
A RMS
Specified measu-
0.30A to 99.99A
100.0 to 399.9A
400.0A to 700.0A
rement range
Accuracy
2%R + 20 counts
2% R
5% R
- Frequency range: from 15Hz to 10kHz
- Additional error with the crest factor CF:
.CF from 1.5 to 3: +1.5%
.CF from 3 to 5:
+2.5%
.CF from 5 to 7:
+5%
Accuracy on PEAK current on 1ms
- Frequency range: from 10Hz to 500Hz
Permitted overload : 3kA PEAK
LIMITING CURRENT MEASUREMENTS OVER TIME
- zone 1: permanent operation.
- zone 2: 10 minutes of measurements, 10 minutes Off.
- zone 3: 5 minutes of measurement, 20 minutes Off.
- zone 4: operation prohibited (accidental).
A PEAK
Specified measu-
0.40A to 99.99A
100.0 to 599.9A
600.0A to 999.9A
rement range
Accuracy
3%R + 30 counts
3% R
8% R
temperature in °C
1100A
1000A
900A
700A
800A
600A
500A
400A
300A
200A
100A
0A
1200A
3
4
2
1
70°
60°
50°
40°
30°
20°
10°
0°
-10°
-20°
current in A RMS
www.motralec.com / [email protected] / 01.39.97.65.10
