34
19. Specification
All quoted accuracies are at +20 °C.
Insulation
Nominal test voltages
MIT400, 405
250 V, 500 V, 1000 V
MIT410, 420,430 50 V, 100 V, 250 V, 500 V, 1000 V
MIT480
50 V, 100 V
MIT481, 485
50 V, 100 V, 250 V, 500 V, 1000 V
MIT40X
10 V to 100 V variable (1 V increments)
Range full scale accuracy (Model dependant)
All ranges ±2% ±2 digits up to 100 M
.
Then:
1000 volts
±3% ±2 digits ±0.2% per G
500 volts.
±3% ±2 digits ±0.4% per G
250 volts.
±3% ±2 digits ±0.8% per G
100 volts.
±3% ±2 digits ±2.0% per G
50 volts.
±3% ±2 digits ±4.0% per G
Analogue range
1 G
full scale
Analogue range:
1 G
full scale
Short circuit current:
2 mA +0% -50%
Terminal voltage:
-0% +20% ±1 V (Ii <1 mA)
Test current on load:
1 mA at min. pass value of insulation specified in BS7671,
HD384 and IEC364, EN61152-2, 2 mA max.
EN61557 operating range:
0,10
M
to 1,00 G
Leakage current range:
10 μA to 2000 μA
Leakage current:
10% ±3 digits
Voltage display:
3% ±3 digits ±0.5% of rated voltage
Polarisation Index (PI):
10min / 1minute ratio
Dielectric absorption Ratio (DAR):
60sec / 30sec ratio
Notes:
(1)
All ranges measure from 0,00 M
upwards.
(2)
Above specifications only apply when high quality silicone leads are being used.
Continuity
EN61557 operating range:
0,01
to 99,9
(0 to 100
on analogue scale)
Accuracy:
± 2% ± 2 digits (0 to 100
)
Open circuit voltage:
5 V ± 1 V
Test current:
205 mA (±5 mA) (0.01
to 9.99
)
20 mA (±1 mA) (10.0
to 99.9
)
Zero offset at probe tips:
0,10
typical
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