TB 9-6625-2190-35
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286. 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 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.
usage accessories issued as indicated in 4 above, and are not listed in this calibration
procedure.
Minimum use
Manufacturer and model
Common name
specifications
(part number)
CALIBRATOR
Dc voltage:
Fluke, Model 5720A (5700A/EP)
Range: 300 mV to 1000 V
(p/o MIS-35947); w/amplifier,
Accuracy: 0.025%
Fluke, Model 5725A/AR
(5725A/AR)
Dc current:
Range: 300 A to 5 A
Accuracy: 0.2%
Ac voltage:
Range: 300 mV to 1000 V
Frequency: 20 Hz to 5 kHz
Accuracy: 0.125%
Range:
Accuracy:
190 Ω
0.01%
190 kΩ to 1.9 MΩ
0.077%
19 MΩ
0.262%
6. Preliminary Instructions
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
