MI 2140 MI 2140 Omega &BetaPAT Instrument description
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3. 3. Technical specification
3.1 Earth bond test
Earth bond resistance (4 A, 10 A, 25 A)
Range R Resolution Accuracy (after calibration)
0.00 –1.99 Ω 0.01 Ω ±(5 % of reading + 3 digit)
2.00 –19.99 Ω 0.01 Ω ±10 % of reading
Earth bond resistance (100 mA)
Range R Resolution Accuracy (after calibration)
0.00 –1.99 Ω 0.01 Ω ±(5 % of reading + 3 digit)
Indication range: 2.00 –19.9 Ω
Test currents: 100 mA, 4 A, 10 A, 25 A into 100 mΩ at mains voltage of 240 V
AC
Open circuit voltage: <6 V
AC
, (2.2 V
AC
at 100 mA) at U
mains
= 240 V
AC
Limits: 0.01 - 0.09 Ω, 0.10 - 0.90 Ω, 1.00 - 9.00 Ω
Timer: 2 s, 3 s, 5 s, 10 s, 30 s
Output: EARTH BOND clip, 115 V or 230 V socket
3.2 Insulation test
Insulation resistance readout
Range Resolution Accuracy
0.000 – 0.500 MΩ 0.001 MΩ ±(10 % of reading + 5 digit)
0.500 –1.999 MΩ 0.001 MΩ
2.00 –19.99 MΩ 0.01 MΩ ±(5 % of reading + 3 digit)
20.0 – 199.9 MΩ 0.1 MΩ
Nominal voltage: 250 V
DC
, 500 V
DC
(-0 % / +10 %)
Nominal current: 1 mA @ 250 kΩ (250 V)
1 mA @ 500 kΩ (500 V)
Short circuit current: 2 mA max.
Limits: 0.50 MΩ, 1.00 MΩ, 2.00 MΩ, 4.00 MΩ, 7.00 MΩ, 10.0 MΩ, 50.0 MΩ
Auto discharging after test
Timer: 2 s, 3 s, 5 s, 10 s, 30 s
Output: 115 V or 230 V socket
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