AC/DC voltage measurement
Accuracy
Range Resolution
50 Hz to 400 Hz
± (% of Rdg + Digits)
600.0 V 0.1 V ± (2 % + 3)
Input impedance: 3 MΩ (nominal), < 100 pF
Common mode rejection ratio (1 kΩ unbalanced): > 60 dB at dc, 50 or 60 Hz
Overload protection: 600 V rms or dc
Earth bond resistance measurement
Range Resolution
Accuracy
1
+ (% of Rdg + Digits)
20.00 Ω 0.01 Ω
200.0 Ω 0.1 Ω
± (1.5 % + 3)
2000 Ω 1 Ω
20.00 kΩ 0.01 kΩ
1
Ac
curacies apply from 0 to 100 % of range.
Overload protection: 2 V rms or dc
Open circuit test voltage: > 4.0 V, < 8 V
Short circuit current: > 200.0 mA
Insulation specifications
Measurement range: 0.01 MΩ to 10 GΩ model 1507, 0.01 MΩ to 2000 MΩ model 1503
Test voltages: 50 V, 100 V, 250 V, 500 V, 1000 V
Test voltage accuracy: + 20 %, - 0 %
Short-circuit test current: 1 mA nominal
Auto discharge: Discharge time < 0.5 second for C = 1 µF or less
Live circuit detection: Inhibit test if terminal voltage > 30 V prior to initialization of test
Maximum capacitive load: Operable with up to 1 µF load
1507/1503 Specifications
Accuracy (Model 1507)
Output Voltage Display Range Resolution Test Current
Accurac
y
±
(% of Rdg + Digits)
50 V
0.01 MΩ to 20.00 MΩ 0.01 MΩ
1 mA @ 50 kΩ ±
(3 % + 5)
(0 % to + 20 %)
20.0 M
Ω to 50.0 MΩ 0.1 MΩ
100 V
0.0
1 M
Ω to 20.00 MΩ 0.0
1 M
Ω
1 mA @ 100 kΩ ± (3 % + 5)
(0 % to + 20 %)
20.0 MΩ to 100.0 MΩ 0.1 MΩ
250 V
0.01 MΩ to 20.00 MΩ 0.01 MΩ
1 mA @ 250 kΩ ± (1.5 % + 5)
(0 % to + 20 %)
20.0 MΩ to 200.0 MΩ 0.1 MΩ
500 V
0.0
1 M
Ω to 20.00 MΩ 0.0
1 M
Ω
(0 % to + 20 %)
20.0 M
Ω to 200.0 MΩ 0.1 MΩ 1 mA @ 500 kΩ ± (1.5 % + 5)
200 MΩ to 500 MΩ 1 MΩ
1000 V
0.
1 M
Ω to 200.0 MΩ 0.
1 M
Ω
±
(
1.5 % + 5)
(0 % to + 20 %)
200 M
Ω to 2000 MΩ 1 MΩ 1 mA @ 1 MΩ
2.0 GΩ to 1
0.0 G
Ω 0.
1 G
Ω ±
(
1
0 % + 3)
2 Fluke Corporation 1507/1503 Insulation Testers