Operator Maintenance
Verifying Calibrator Operation 6
6-17
Table 6-12. DC Voltage Limits
Nominal output
voltage
Required standard
voltmeter uncertainty
Lower limit
(V DC)
Upper limit (V DC)
90 V dc 0.02 % 89.880 90.120
500 V dc 0.02 % 499.32 500.68
Table 6-13. AC/DC Voltage Multimeter Limits
Nominal
output voltage
Required standard
voltmeter uncertainty
Frequency
Lower
limit (V)
Upper limit
(V)
10 V ac 0.02 % 55 Hz 9.98 10.02
100 V ac 0.02 % 55 Hz 99.75 100.25
1100 V ac 0.02 % 55 Hz 997.5 1002.5
10 V dc 0.02 % - 9.98 10.02
100 V dc 0.02 % - 99.75 100.25
1100 V dc 0.02 % - 997.5 1002.5
Table 6-14. AC/DC Current Multimeter Limits
Nominal
output voltage
Required standard
voltmeter uncertainty
Frequency
Lower
limit (A)
Upper limit
(A)
250 mA ac 0.02 % 55 Hz 0. 249475 0.250525
2.5 A ac 0.02 % 55 Hz 2.49475 2.50525
20 A ac 0.02 % 55 Hz 19.925 20.075
250 mA dc 0.02 % - 0. 249475 0.250525
2.5 A dc 0.02 % - 2.49475 2.50525
20 A dc 0.02 % - 19.925 20.075
Table 6-15. Hipot Leakage Current Multimeter Limits
Nominal
output voltage
Required standard
voltmeter uncertainty
Frequency
Lower
limit (A)
Upper limit
(A)
250 μA ac 0.02 % 55 Hz 0. 249475 0.250525
2.5 mA ac 0.02 % 55 Hz 2.49475 2.50525
25 mA ac 0.02 % 55 Hz 24.931 25.069
250 μA dc 0.02 % - 0. 249475 0.250525
2.5 mA dc 0.02 % - 2.49475 2.50525
25 mA dc 0.02 % - 24.931 25.069