TB 9-4910-555-35
Table 1. Calibration Description - Continued
Test instrument
parameters
Performance specifications
Pressure
Range: 0 to 25 psig
1
0 to 1000 psig
0 to 10,000 psig (optional transducer)3
Accuracy: (+2.5% of indication) + (1.5% of FS)
Vacuum
Range: 0 to 30 inHg
Accuracy: (+2.5% of indication) + (1.5% of FS)
1Offset
test required.
2Max
error is 7.0% up to 1000 amperes and increases linearity to 8.0% at 1500 amperes.
3Not part of accessory tray.
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 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
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 listed in
table 3 are issued as
indicated in
paragraph 4 above and
are used in this
calibration procedure. When necessary, these items
may be substituted by equivalent items, unless specifically prohibited.
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
CALIBRATOR
Range: 0 to 45 V dc
Fluke, Model 5720A (5700A/EP)
Accuracy: +0.25%
(p/o MIS-35947); w amplifier
Fluke Model 5725A/AR
(5725A/AR))
DC CURRENT SHUNT
Range: 0 to 75 A
Accuracy:1
Guildline, Model 9711 (7912323)
FUNCTION/ARBITRARY
Range: 0 to 10 V p-p; 500 Hz square wave
Accuracy: 0.5 %
Agilent, Model 33250A (33250A)
HYDRAULIC PRESSURE
Range: 25 to 1000 psig
STANDARD
Accuracy: +1%
DHI, RPM3D-A10000 (13534030)
Range: 0 to 75 mV dc
Hewlett-Packard, Model 3458A
Accuracy:
(3458A)
1
PNEUMATIC PRESSURE
Range: 0 to 1000 psig
Accuracy: +1%
(MIS-45842)
STANDARD
Accuracy: 0 Ω to 1500 Ω +0.9%
Biddle-Gray, Model 71-631
1500 Ω to 40,000 Ω +0.85%
(7910328)
1Combined
accuracy of dc current shunt and multimeter: +1.8% to +2.1%.