TB 9-6625-2262-24
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the results of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
7. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. Remove protective cover from TI as necessary to gain access to adjustments.
b. For some checks throughout this procedure, it may be necessary to manually set TI
range by pressing RANGE pushbutton.
8. Dc Voltage
a. Performance Check
and COM.
(1) Connect calibrator OUTPUT HI and LO to TI V
(2) Set function switch to dc mV.
(3) Set TI and calibrator for settings listed in table 3. If TI does not indicate within
limits specified, perform b below.
Table 3. Dc Voltage
Test instrument
Calibrator output
Test instrument indications
range settings
settings
Min
Max
320 mV
300 mV
299.3
300.7
3.2 V1
3V
2.993
3.007
32 V
30 V
29.93
30.07
320 V
300 V
299.3
300.7
1000 V
1000 V
997
1003
1Set function switch to dc V.