Fluke 8508A - DC Voltage Specifications

Fluke Corporation 8508A Extended Specifications 5
Type Multi-slope, multi-cycle A-D Converter
CMRR (1 kΩ unbalance)
[5]
140 dB at DC and 1 - 60 Hz
NMRR
[5]
Filter Out 60 dB at 50/60 Hz ±0.09 %
Filter In 110 dB at 50/60 Hz ±0.09 %
Protection (All ranges) 1 kV rms
Input Impedance
200 mV to 20 V Ranges >100 GΩ
200 V & 1000 V Ranges 10.1 MΩ ± 1 %
Max Input Current 50 pA
Ratio Accuracy
Range to Range ±(Net Front Input Accuracy + Net Rear Input Accuracy)
Within Range Apply 24 hour or 20 minute Transfer
Uncertainty specifications
Settling Time (to 10 ppm step size)
Filter Out <50 ms
Filter In <1 s
DC Voltage
[1] [2] [3]
Full Scale Uncertainty Relative to Cal Stds
24 hour
TCal ±1 °C
365 day
TCal ±1 °C
200 mV 199.999 999 0.7 + 0.5 1.4 + 0.5 2.7 + 0.5 4.5 + 0.5 5.0 + 0.5
2 V 1.999 999 99 0.5 + 0.2 1.4 + 0.2 2.7 + 0.2 3.0 + 0.2 3.5 + 0.2
20 V 19.999 999 9 0.5 + 0.2 1.4 + 0.2 2.7 + 0.2 3.0 + 0.2 3.5 + 0.2
200 V 199.999 999 1.0 + 0.2 2.6 + 0.2 4.0 + 0.2 4.5 + 0.2 5.5 + 0.2
1000 V 1050.000 00 1.0 + 0.5 2.6 + 0.5 4.0 + 0.5 4.5 + 0.5 5.5 + 0.5
200 mV 199.999 999 0.8 + 0.6 2.0 + 0.6 3.5 + 0.6 6.0 + 0.6 6.5 + 0.6
2 V 1.999 999 99 0.6+ 0.25 1.8 + 0.25 3.5 + 0.25 4.0 + 0.25 4.5 + 0.25
20 V 19.999 999 9 0.6 + 0.25 1.8 + 0.25 3.5 + 0.25 4.0 + 0.25 4.5 + 0.25
200 V 199.999 999 1.2 + 0.25 3.5 + 0.25 5.2 + 0.25 6.0 + 0.25 7.0 + 0.25
1000 V 1050.000 00 1.2 + 0.6 3.5 + 0.6 5.2 + 0.6 6.0 + 0.6 7.0 + 0.6
90 day
TCal ±1 °C
Range
365 day
TCal ±5 °C
95 % Confidence Level
99 % Confidence Level
DC Voltage
(Secondary Specifications)
[1] [2] [3]
Transfer
Uncertainty
20 mins ±1 °C
± (ppm Reading
+ ppm Range)
Temperature Coefficient
200 mV 0.4 + 0.3 0.4 0.6
2 V 0.12 + 0.1 0.3 0.5
20 V 0.12 + 0.1 0.3 0.5
200 V 0.4 + 0.1 0.7 1.0
1000 V 0.4 + 0.3 0.7 1.0
Range
± ppm Reading/°C
15 °C - 30 °C
5 °C - 15 °C
30 °C - 40 °C
DC Voltage specifications
365 day
TCal ±1 °C
± (ppm Reading + ppm Range)
[4]
Absolute Uncertainties