TB 9-6625-2285-40
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
calibration of Fuel Quantity System Test Set, Simmonds Precision/JC Air, Model PSD 60-
1AF. TO 33D2-3-119-1 was used as the prime data source in compiling these instructions.
The equipment being calibrated will be referred to as the TI (test instrument) throughout
this bulletin.
a. Model Variations. None
b. Time and Technique. The time required for this calibration is approximately 3
hours, using the dc and low frequency technique.
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
pertain to this calibration are listed in table 1.
Test instrument
parameters
Performance specifications
Capacitance measurement
Range: .1 to 1999 pf
1 to 10,000 pf (extended range)
Accuracy: 0.1% of reading or 0.2 pf, whichever is greater
Capacitance simulators
Range: 20 pf to 8000 pf (TU)
20 pf to 1000 pf (COMP)
Accuracy: 0.1% of reading or 0.2 pf, whichever is greater
Range: 100 kΩ to 10,000 MΩ1
Resistance measurement
Accuracy: 10% of range
1100
kΩ not checked due to TI display circuitry limitations.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Reference Calibration
Standards Set NSN 4931-00-621-7878. 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
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.
