Electrical Measurement Specifications - Fluke 1662 User Manual

1662/1663/1664 FC
Users Manual

Electrical Measurement Specifications

The accuracy specification is defined as ±(% reading +digit counts) at 23 °C ±5 °C, ≤80 %
RH. Between -10 °C and 18 °C and between 28 °C and 40 °C, accuracy specifications
may degrade by 0.1 x (accuracy specification) per °C. The calibration cycle is 1 year.
AC Voltage Measurement (V)
Range Resolution
500 V 0.1 V
Insulation Resistance Measurement (R
Model 1662
100-250-500-1000 V
Test Insulation
Voltage Resistance Range
50 V 10 kΩ to 50 MΩ
100 kΩ to 20 MΩ
100 V
20 MΩ to 100 MΩ
10 kΩ to 20 MΩ
250 V
20 MΩ to 200 MΩ
10 kΩ to 20 MΩ
500 V 20 MΩ to 200 MΩ
200 MΩ to 500 MΩ
100 kΩ to 200 MΩ
1000 V
200 MΩ to 1000 MΩ
Note: The number of insulation tests with a new set of batteries is >2000.
80
Accuracy
Input Impedance
45 Hz – 66 Hz
0.8 % + 3
Test Voltages
Model 1663
Model 1664
50-100-250-500-1000 V
Resolution
0.01 MΩ
0.01 MΩ
0.1 MΩ
0.01 MΩ
0.1 MΩ
0.01 MΩ
0.1 MΩ
1 MΩ
0.1 MΩ
1 MΩ
320 kΩ
)
ISO
Test Current
±(3 % + 3 digits)
1 mA @ 50 kΩ
±(3 % + 3 digits)
1 mA @ 100 kΩ
±(3 % + 3 digits)
±(1.5 % + 3 digits)
1 mA @ 250 kΩ
±(1.5 % + 3 digits)
±(1.5 % + 3 digits)
±(1.5 % + 3 digits)
1 mA @ 500 kΩ
±10 %
±(1.5 % + 3 digits)
1 mA @ 1 MΩ
±10 %
Overload
Protection
550 V rms
Accuracy of Test
Voltage
(at rated test
current)
+10 %, -0 %
Accuracy