TB 9-6625-3628-24
IDENTIFICATION AND DESCRIPTION
This bulletin provides instructions for the
1. Test Instrument Identification.
calibration of Torque Sensor, SensorData, Series T171-231. The manufacturer's manual
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. Variations among models are described in text and tables.
b. Time and Technique. The time required for this calibration is approximately 8
hours, using the physical technique.
2. Forms, Records, and Reports. Forms, records, and reports required for calibration
personnel at all levels are prescribed by TB 750-25.
3. Calibration Description. TI parameters and performance specifications which
pertain to this calibration are listed in table 1.
Test instrument
Performance specifications
parameters
T171-231-5/30
Low Range:
5 ft-lb FS
Accuracy:
0.5% of reading from 20% to FS
High Range:
30 ft-lb FS
Accuracy:
0.5% of reading from 10% to FS
T171-231-50/300
Low Range:
50 ft-lb FS
Accuracy:
0.5% of reading from 10% to FS
High Range:
300 ft-lb FS
Accuracy:
0.5% of reading from 10% to FS
T171-231-500/1.5K
Low Range:
500 ft-lb FS
Accuracy:
0.5% of reading from 10% to FS
High Range:
1500 ft-lb FS
Accuracy:
0.5% of reading from 10% to FS
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, AN/GSM-440 and Secondary Reference Calibration Standard 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 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 parentheses.