Operation Manual

TeraOhm 5kV
34
8. Specifications
8.1. Measurements
Insulation resistance
Nominal test voltage: Any within 250 and 5000 V
Current capability of test generator: >1 mA
Short-circuit test current: 1.4 mA max.
Automatic discharge of tested object: yes
Measuring range Riso: 0.12 MΩ up to 5 TΩ*
)
Display range Riso Resolution Accuracy
0 ÷ 999 kΩ 1 kΩ
1.00 ÷ 9.99 MΩ 10 kΩ
10.0 ÷ 99.9 MΩ 100 kΩ
100 ÷ 999 MΩ 1 MΩ ±(5 % of reading + 3 digits)
1.00 ÷ 9.99 GΩ 10 MΩ
10.0 ÷ 99.9 GΩ 100 MΩ
100 ÷ 999 GΩ 1 GΩ
1.00 ÷ 5.00 TΩ 10 GΩ
*
Full-scale value of insulation resistance is defined according the following equation:
R
FS
= 1TΩ * U
test
[kV]
DC test voltage:
Voltage value: Any value within 250 V and 5000 V, steps by 50 V.
Accuracy: -0 / +10 % + 20 V.
Output power: 5 W max.
Display range Test voltage (V) Resolution Accuracy
0 ÷ 5000
1 V
±(3 % of reading + 3 V)
Current:
Display range I (mA) Resolution Accuracy
1 ÷ 1.4 mA 10 μA
100 ÷ 999 μA 1 μA
10 ÷ 99.9 μA
100 nA
1 ÷ 9.99 μA
10 nA
±(5 % of reading + 0.05 nA)
100 ÷ 999 nA
1 nA
10 ÷ 99.9 nA
0.1 nA
0 ÷ 9.99 nA
0.01 nA
Noise current rejection (resistive load)
Filter option Maximum current @ 50Hz (mA r.m.s).
OFF 1.5
Fil1 2.5
Fil2 4.5
Fil3 5