TB 9-6625-2335-24
Table 1. Calibration Description Continued
Test instrument
parameters
Performance specifications
(% of reading + No. of counts)1, 2
Ac current true
Accuracy:
rms
Range
30 mA and 300 mA
1A
20
to
45 Hz
0.93 + 2800
1.03 + 2800
46
to
100 Hz
0.38 + 2800
0.48 + 2800
101 Hz
to
20 kHz
0.33 + 2800
0.43 + 2800
20 kHz3
400 Hz
to
0.33 + 2800
0.43 + 2800
21
to
100 kHz
1.08 + 4000
---
Accuracy: (% of reading + No. of counts)1
Range
0.0075 + 335
4-wire
30
0.0055 + 35
300
0.005 + 7
3k
0.005 + 7
30 k
0.005 + 8
300 k
0.0065 + 14
3M
0.04 + 83
30 M
Accuracy: (% of reading + No. of counts)1
Range
0.0075 + 20335
2-wire
30
0.0055 + 2035
300
0.005 + 207
3k
0.005 + 27
30 k
0.005 + 10
300 k
0.0065 + 14
3M
0.04
+ 83
30 M
Accuracy: (% of reading)
Range:
10
to
400
Hz
0.05
400 Hz
to
1.5 MHz
0.01
1Auto
zero on, 10 PLC, 6-1/2 digits, 1-year specifications.
2Ac
coupled, ac slow filter on (ACBAND20).
3Ac fast filter (ACBAND400).
4Checked at 1 kHz only.. Other frequencies checked in ACV function.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286; AN/GSM-287; or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
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 this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
