A-11. 2640A Dc Voltage Accuracy Specifications; A-12. 2640A Ac Voltage General Specifications - Fluke NetDAQ 2640A User Manual

Table A-11. 2640A DC Voltage Accuracy Specifications
Range
90 Day
Slow
90 mV .01%+7 µV
300 mV .01%+15 µV
3V .01%+.1 mV
30V .01%+1.5 mV
150/300V .01%+15 mV
Note 300V range applies to channels 1 and 11 only.
2640A AC Voltage Measurement Specifications
Tables A-12 to A-14 provide 2640A specifications for the ac voltage measurement
function.
Table A-12. 2640A AC Voltage General Specifications
Specification
Input Impedance
Maximum Crest Factor
Crest Factor Error
Common Mode Rejection
Accuracy, 3
18 C to 28 C
Fast Slow
.01%+17 µV .013%+8 µV
.01%+30 µV .013%+17 µV
.01%+.2 mV .013%+.15 mV
.02%+3 mV .013%+1.7 mV
.04%+30 mV .013%+17 mV
1 M
3.0 Maximum
2.0 for rated accuracy
For non-sinusoidal input signals with crest factors
between 2 and 3 and pulse widths 100 µs, add
0.2% to the accuracy specifications.
80 dB minimum at dc, 50 Hz/60 Hz 0.1%, 1 k
imbalance, Slow Rate
(% input + V)
1 Year
Fast
.013%+18 µV .042%+18.2µV .042%+44.2µV
.013%+35 µV .042%+39 µV
.013%+.2 mV .042%+.26 mV .042%+.52mV
.026%+3.5 mV .042%+3.9 mV .084%+7.8mV
.052%+35 mV .042%+39 mV
Characteristic
in parallel with 100 pF
Specifications
2640A Specifications
-10 C to 60 C
1 Year
Slow Fast
.042%+78 µV
.168%+78 mV
A-14.
A
A-9