Fluke 8508A User Manual page 160

8508A
Users Manual
8508A Range
200 mV
2 V
20 V
200 V
1000 V
1. 1000V range Gain calibrations may be performed at voltages above 500V. The 1000V range Gain and Zero
calibrations should be performed together, with the Zero cal performed at 1 % of the nominal value used for Gain
cal.
The procedure assumes the user has knowledge of the actual output value of the
calibrator at each point, from a measurement or from a certificate of calibration. The
feature allows a user to enter the true output value of the calibration standard where it
differs from the nominal point. If the calibrator output is considered to be exactly
nominal, use of the
steps 3-5. Calibrating the 1000V range at the recommended 500V requires a Set Value of
500 before the Zero cal.
On each range, the 8508A automatically recognizes the appropriate value as range zero
from the applied signal amplitude, and automatically recognizes the range LF and HF
gain points from the applied signal frequency.
1. On the 8508A, select the required Range.
2. On the Calibrator select Output Voltage and Frequency, Operate
3. On the 8508A, Press
4. Select
5. Use the numeric keys with the
6. Press
7. On the Calibrator, set Output to
8. On the 8508A, press
6-16
Table 6-4. AC Voltage Calibration Points and Sequence
Point
Zero (5 % Range)
Range Gain LF
Range Gain HF
Zero (0.5 % Range)
Range Gain LF
Range Gain HF
Zero (0.5 % Range)
Range Gain LF
Range Gain HF
Zero (0.5 % Range)
Range Gain LF
Range Gain HF
1
Zero (0.5 % Range)
Range Gain LF
Range Gain HF
feature is not required when calibrating at full range, also omit
Set
CAL
on the
Set CALIBRATION menu
the calibrator, then press Enter.
to initiate the calibration operation.
SAMPLE
Calibration is complete when the
measurement is displayed Note that HF gain calibrations are iterative, and repeating
the HF calibration may improve the result.
ACV
Voltage
10 mV
100 mV
100 mV
10 mV
1V
1V
100 mV
10 V
10 V
1 V
100 V
100 V
5 V
500 V
500 V
to revert to
CALIBRATION
.
menu to key in the true output value of
SET VALUE
legend goes out and the calibrated
Busy
.
STANDBY
key to revert to the ranges menu.
Frequency
1 kHz
1 kHz
60 kHz
1 kHz
1 kHz
60 kHz
1 kHz
1 kHz
60 kHz
1 kHz
1 kHz
60 kHz
1 kHz
1 kHz
30 kHz
menu.
Set