TB 9-6625-2114-24
Table 1. Calibration Description - Continued
Test instrument parameters
Performance specifications
Aange: 0 to 500 M
R
ccuracy at midscale: 1 on RX1 range
5% on all other ranges
Hewlett-Packard, Model 410C
Range: 0 to +1500 V 3
Dc voltage
Accuracy: 2% FS
Ac voltage
Range: 0 to 300 V
Accuracy: 3% FS at 400 Hz
Referenced to 400 Hz:
10%:
20
to
100
Hz
2%:
100 Hz to
50
MHz
4%:
50
to
100
MHz
1.5 dB: 100
to
700
MHz
Aange: 0 to 500 M
R
ccuracy: 0 to midscale: 5% of reading or:
2% of midscale, whichever is greater
7% from midscale to scale value of 2
8% from scale value of 2 to 3
9% from scale value of 3 to 5
10% from scale value of 5 to 10
Dc current
Range: 0 to +150 mA
Accuracy: 3% FS
extended to 30 kV with use of dc divider supplied with TI. Accuracy of dc divider is 5%.
1Range
extended to 900 V with use of capacitive divider supplied with TI. Accuracy of capacitive divider is 1%.
2Range
3Not verified above 1000 V dc.
EQUIPMENT REQUIREMENTS
4. Equipment Required. Table 2 identifies the specific equipment to be used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Sets AN/GSM-286; AN/GSM-287; or AN/GSM-705. Alternate items may be used
by the calibrating activity when the equipment listed in table 2 is not available. The items
selected must be verified to perform satisfactorily prior to use and must bear evidence of
current calibration. The equipment must meet or exceed the minimum use specifications
listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio between the
standard and TI. Where the four-to-one ratio cannot be met, the actual accuracy of the
equipment selected is shown in parenthesis.
5. Accessories Required. The accessories required for the calibration are common usage
accessories, issued as indicated in paragraph 4 above and are not listed in this calibration
procedure. The following peculiar accessory is also required for this calibration: Probe, T-
connector, P/N 11042/455A (8899531).