Typical Measurements and Accuracy (cont'd)
Voltage Measurement
VFD
AC Voltage
Accuracy at
Range
50 Hz to 400 Hz
6.000 V ± (1.2% + 0.005 V)
60.00 V ± (1.2% + 0.05 V)
600.0 V ± (1.2% + 0.5 V)
1000 V ± (1.2% + 5 V)
Input Impedance: 10 MΩ, 50 pF nominal
12
AC Voltage VFD
Accuracy at
Range
10 Hz to 20 Hz
6.000 V ± (4.0% + 0.080 V) ± (2.0% + 0.060 V) ± (7.0% + 0.080 V)
60.00 V ± (4.0% + 0.80 V)
600.0 V ± (4.0% + 8.0 V)
1000 V ± (4.0% + 80 V)
* Accuracy linearly decreases from a value of (2% + 60 digits) at 200 Hz
to (7% + 80 digits) at 400 Hz.
DC Voltage
Range
6.000 V ± (0.5% + 0.005 V)
60.00 V ± (0.5% + 0.05 V)
600.0 V ± (0.5% + 0.5 V)
1000 V ± (0.5% + 5 V)
Accuracy at
20 Hz to 200 Hz
± (2.0% + 0.60 V)
± (2.0% + 6.0 V)
± (2.0% + 60 V)
AC + DC Voltage
Accuracy
Accuracy at
200 Hz to 400 Hz*
± (7.0% + 0.80 V)
± (7.0% + 8.0 V)
± (7.0% + 80 V)
SELECT
Accuracy at DC,
Range
50 Hz to 400 Hz
6.000 V ± (1.4% + 0.007 V)
60.00 V ± (1.4% + 0.07 V)
600.0 V ± (1.4% + 0.7 V)
1000 V ± (1.4% + 7 V)