TB 9-6625-2135-24
Table 1. Calibration Description - Continued
Test instrument parameters
Performance specifications
Ac voltage
Range: 0 to 1200 V (in 5 ranges)
Frequency: 20 Hz to 100 kHz4
Accuracy:1
Frequency:
20 to 30 Hz
2.0 + 50
30 to 50 Hz
1.0 + 30
50 Hz to 10 kHz
0.3 + 20
10 to 20 kHz
1.0 + 40
20 to 100 kHz
2.0 + 150
3
Ac Current
Range: 0 to 2000 mA (in 5 ranges)
Frequency: 20 Hz to 10 kHz
Accuracy:1
Range:
200 A to 200 mA
20 to 30 Hz
2.0 + 50
30 Hz to 10 kHz 0.9 + 35
2000 mA
20 to 30 Hz
2.0 + 50
30 Hz to 10 kHz 1.2 + 20
Dc current
Range: 0 to 2000 mA (in 5 ranges)
Accuracy:1
Range:
200 A to 20 mA
0.07 + 2
200 mA
0.15 + 2
2000 mA
0.5 + 2
Range: 0 to 20 M (in 7 ranges)
Accuracy:1
Range:
20 and 200
0.08 + 2
2 through 200 k
0.03 + 1
2000 k
0.04 + 1
20 M
0.15 + 1
Accuracy: (% of reading + digits) 4 1/2 digits (1999.9 maximum display).
1
Maximum input: FS to 10 kHz decreasing linearly to 50 percent of FS at 20 kHz.
2
3Ac current verified during dc current check since same shunt resistors are utilized for both checks.
4Volts/hertz product not to exceed 107.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, AN/GSM-287, and 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
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 this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration.