Fluke NetDAQ 2645A - Manual (Page 220)

2640A/2645A NetDAQ
Users Manual
A-10
Table A-12. 2640A AC Voltage General Specifications (cont)
Specification Characteristic
Maximum Input Voltage The lesser voltage of:
300V ac rms from any terminal on channels 1 and
11 to earth.
150V ac rms from any terminal on channels 2
through 10, and 12 through 20 to earth.
300V ac rms from any terminal on channels 1 and
11 to any other terminal.
150V ac rms from any terminal on channels 2
through 10 and 12 through 20 to any other input
terminal.
Maximum Volt-Hertz Product 2x10 6 Volt-Hertz product on any range, normal
mode input.
1x10 6 Volt-Hertz product on any range, common
mode input.
Temperature Coefficient Linear interpolation between 2 applicable points for
temperatures between 28
º C and 60 º C, or -10 º C
and 18 º C, e.g., if the applicable specification at
28 º C is 2% and the specification at 60 º C is 3%,
then the specification at 40 º C is
(3%-2%)x(40-28)/(60-28)+2%=2.375%.
Accuracy at -20
°
C Multiply the -10
°
C to + 60
°
C accuracy specification
by 2. After 1 hour warm-up. For accuracy between
-10
°
C and -20
°
C, interpolate linearly.
DC Component Error The presence of a dc voltage will cause an
indeterminate error in the reading of the ac voltage
on the input.
Table A-13. 2640A AC Voltage Range and Resolution Specifications
Range
Resolution
Minimum Input for
Slow Fast
Rate Accuracy
Full Scale
±
30,000
±
3,000

300 mV 10 µV 100 µV 20 mV
3V 100 µV 1 mV 200 mV
30V 1 mV 10 mV 2V
150/300V 10 mV 100 mV 20V
Note 300V range applies to channels 1 and 11 only.