TB 9-4920-364-35
IDENTIFICATION AND DESCRIPTION
1. Test Instrument
Identification.
This bulletin provides instructions for the
BH112JA36. The manufacturer's manual and TM 55-4920-244-14 were used as the prime
data sources 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 4
hours, using the dc and low frequency technique.
2. Forms,
Records, and
Reports
a. Forms, records, and
reports required for calibration personnel at all
levels are
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).
3. Calibration
Description. TI
parameters and
performance specifications which
pertain to this calibration are listed in table 1.
Test instrument parameters
Performance specifications
Potentiometer
Range: 0 to 1100C
1C
Accuracy:
at
engine
operating
temperature
Thermocouple
Range: 0 to 135 V ac
5 V ac
Accuracy:
EGT indicator
Range: 700C
10C
Accuracy:
Range: 4.21, 8.0, and 22.0
0.25 on each position
Accuracy:
Rpm
Range: 0 to 10,000 rpm
0.1%
Accuracy:
Range: 0 to 100,000
10%
Accuracy: