METREL TeraOhm - Technical Specifications; Measurement Specifications

TeraOhm 5kV
33
8. Specifications
8.1. Measurements
Insulation resistance
Nominal test voltage: Any within 250 and 5000 V
Current capability of test generator: >1 m A
Short-circuit test current: 1.4 m A max.
Automatic discharge of tested object: yes
Measuring range Riso: 0.12 M Ω up to 5 T Ω *
)
Display range Riso Resolution Accuracy
0 ÷ 999 k Ω 1 k Ω
1.00 ÷ 9.99 M Ω 10 k Ω
10.0 ÷ 99.9 M Ω 100 k Ω
100 ÷ 999 M Ω 1 M Ω ± (5 % of reading + 3 digits)
1.00 ÷ 9.99 G Ω 10 M Ω
10.0 ÷ 99.9 G Ω 100 M Ω
100 ÷ 999 G Ω 1 G Ω
1.00 ÷ 5.00 T Ω 10 G Ω
*
Full-scale value of insulation resistance is defined according the following equation:
R
FS
= 1T Ω * 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 µ A
100 ÷ 999 µ A 1 µ A
10 ÷ 99.9 µ A
100 nA
1 ÷ 9.99 µ A
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