2 Fluke Corporation 8808A
Electrical Specifications
Accuracy specifications are valid for 5-½ digit mode and after at least a half-hour warm-up.
DC Voltage Specifications
Maximum Input ........................................................1000 V on any range.
Common Mode Rejection .......................................120 dB at 50 or 60 Hz ധ0.1㧑 (1 k˖ unbalance)
Normal Mode Rejection..........................................80 dB at Slow Rate
A/D Nonlinearity ......................................................15 ppm of range
Input Bias Current ...................................................<30 pA at 25 rC
Settling Considerations..........................................Measurement settling times are affected by source impedance, cable
dielectric characteristics, and input signal changes
Input Characteristics
Resolution
Range
Full-Scale
(5-1/2 Digits)
Slow Medium Fast
Input Impedance
200 mV 199.999 mV 1 µV 10 µV 10 µV
>10 G
[1]
2 V 1.99999 V 10 µV 100 µV 100 µV
>10 G
[1]
20 V 19.9999 V 100 µV 1000 µV 1000 µV
10 M ±1 %
200 V 199.999 V 1 mV 10 mV 10 mV
10 M ±1 %
1000 V 1000.00 V 10 mV 100 mV 100 mV
10 M ±1 %
Notes:
[1] At some dual display measurements, the input impedance of 200 mV and 2 V ranges may be changed to 10 M .
Accuracy
Accuracy
[1]
90 days 1 year
Range
23 °C ± 5 °C 23 °C ± 5°C
Temperature Coefficient/°C
Outside 18 – 28 °C
200 mV 0.01 + 0.003 0.015 + 0.004 0.0015 + 0.0005
2 V 0.01 + 0.002 0.015 + 0.003
0.001 + 0.0005
20 V 0.01 + 0.003 0.015 + 0.004
0.0020 + 0.0005
200 V 0.01 + 0.002 0.015 + 0.003
0.0015 + 0.0005
1000 V 0.01 + 0.002 0.015 + 0.003
0.0015 + 0.0005
Notes:
[1] Accuracy given as ± (% of reading + % of range)