150X Series
Calibration Manual
4
Electrical Specifications
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
2000 Ω 1 Ω
20.00 kΩ 0.01 kΩ
+
(1.5 % + 3)
[1] Accuracies 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 models 1507 and 1508, 0.01 MΩ to 2000 MΩ model
1503
Test Voltages .................................................... 50, 100, 250, 500, 1000 V models 1507 and 1508, 500 and 1000 V
model 1503
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.
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