8508A
Users Manual
Table 6-4. AC Voltage Adjustment Points and Sequence
8508A Range Point Voltage Frequency
200 mV Zero (5 % Range) 10 mV 1 kHz
Range Gain LF 100 mV 1 kHz
Range Gain HF 100 mV 60 kHz
2 V Zero (0.5 % Range) 10 mV 1 kHz
Range Gain LF 1V 1 kHz
Range Gain HF 1V 60 kHz
20 V Zero (0.5 % Range) 100 mV 1 kHz
Range Gain LF 10 V 1 kHz
Range Gain HF 10 V 60 kHz
200 V Zero (0.5 % Range) 1 V 1 kHz
Range Gain LF 100 V 1 kHz
Range Gain HF 100 V 60 kHz
1000 V
1
Zero (0.5 % Range) 5 V 1 kHz
Range Gain LF 500 V 1 kHz
Range Gain HF 500 V 30 kHz
1. 1000V range Gain adjustments may be performed at voltages above 500V. The 1000V range Gain and Zero
adjustments 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
Set
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
Set feature is not required when adjusting at full range, also omit
steps 4, 8, and 12. Adjusting 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 the Range Zero point Output Voltage and Frequency.
Select
OPR to operate the calibrator output.
3. On the 8508A, press
CAL to enter the Calibration Menu.
4. If the Set feature is being used:
On the 8508A, select Set on the
CALIBRATION Menu.
Use the numeric keys with the
SET VALUE menu to enter the true output value of the
calibrator at the range zero point, then press Enter.
5. Press
SAMPLE to initiate the adjustment operation.
Adjustment is complete when the busy legend goes out and the adjusted
measurement is displayed.
6. On the Calibrator, select the Range Gain LF point Output Voltage and Frequency.
7. On the 8508A, press
CAL to enter the Calibration Menu.
6-18
To Next Page
Loading...
