Sonel MPI-540 - Measurement of insulation resistance

MPI-540 – USER MANUAL
177
10.1.8 Measurement of insulation resistance
Measurement range, according to IEC 61557-2 for U
N
= 50 V: 50 kΩ…250 MΩ
Display range for
U
N
= 50 V
Resolution
Basic uncertainty
0 k...1999 k
1 k
(3% m.v. + 8 digits),
[(5% m.v. + 8 digits)] *
2.00 M...19.99 M
0.01 M
20.0 M...199.9 M
0.1 M
200 M...250 M
1 M
* – for WS-03 and WS-04 leads
Test range according to IEC 61557-2 for U
N
= 100 V: 100 kΩ…500 MΩ
Display range for
U
N
= 100 V
Resolution
Basic uncertainty
0 k...1999 k
1 k
(3% m.v. + 8 digits)
[(5% m.v. + 8 digits)] *
2.00 M...19.99 M
0.01 M
20.0 M...199.9 M
0.1 M
200 M...500 M
1 M
* – for WS-03 and WS-04 leads
Test range according to IEC 61557-2 for U
N
= 250 V: 250 kΩ…999 MΩ
Display range for
U
N
= 250 V
Resolution
Basic uncertainty
0 k...1999 k
1 k
(3% m.v. + 8 digits)
[(5% m.v. + 8 digits)] *
2.00 M...19.99 M
0.01 M
20.0 M...199.9 M
0.1 M
200 M...999 M
1 M
* – for WS-03 and WS-04 leads
Test range according to IEC 61557-2 dla U
N
= 500 V: 500 kΩ…2.00 GΩ
Display range for
U
N
= 500 V
Resolution
Basic uncertainty
0...1999 kΩ
1 kΩ
(3% m.v. + 8 digits)
[(5% m.v. + 8 digits)] *
2.00...19.99 MΩ
0.01 MΩ
20.0...199.9 MΩ
0.1 MΩ
200...999 MΩ
1 MΩ
1.00…2.00 GΩ
0.01 GΩ
(4% m.v. + 6 digits)
[(6% m.v. + 6 digits)] *
* – for WS-03 and WS-04 leads
Test range according to IEC 61557-2 for U
N
= 1000 V: 1000 kΩ…4,99 G
Display range for
U
N
= 1000 V
Resolution
Basic uncertainty
0...1999 kΩ
1 kΩ
(3% m.v. + 8 digits)
2.00...19.99 MΩ
0.01 MΩ
20.0...199.9 MΩ
0.1 MΩ
200...999 MΩ
1 MΩ
1.00...4.99 GΩ
0.01 GΩ
(4% m.v. + 6 digits)
5.00...9.99 GΩ
0.01 GΩ
unspecified
 Test voltage: 50 V, 100 V, 250 V, 500 V i 1000 V
 Accuracy of generated voltage (Robc []  1000*U
N
[V]): -0% +10% from the set value
 Detection of a dangerous voltage before commencing a measurement