TB 9-4920-451-35
Test instrument parameters
Performance specifications
Simmons Precision, Inc., Model 472090-002
Capacitance measurement
Range: 40 to 999.9 pF
(external)
Accuracy: 0.5% of reading
Range: 1000 to 2000 pF
Accuracy: .5% of reading
Capacitance substitution
Range: 40 to 999.9 pF
(internal)
Accuracy: +0.5% of reading
Range: 1000 to 2000 pF
Accuracy: .5% of reading
Range: 1.0 to 1000 MΩ
Accuracy: +l increment
-.4 increment
Gull Airborne Instruments, Model GTF-4
Capacitance
Range: 0 to 8000 pF in 4 ranges1
Accuracy: 0.5% of range setting
Range: 0 to 100,000 MΩ in 4 ranges
Accuracy: 1.0 to 1000 mΩ +.5% of reading
1000 to 10,000 MΩ +10% of reading
10,000 to 100,000 MΩ +15% of reading
0.1 to 1.0 MΩ +1.0% of range
Consolidated Airborne Systems, Models TF20-1 and TF579
Capacitance
Range: 0 to 5000 pF
Accuracy: +0.5% of FS
Range: 0 to 10,000 MΩ
Accuracy: 10% of reading
1Verified
from 35 to 2000 pF only.
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 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 listed in table 2.
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.