TB 9-4910-558-24
WARNING
Ensure TI has no fuel residue present inside fuel assembly.
a. Open the control panel of TI as necessary to gain access to adjustments.
b. Ensure TI ON-OFF POWER switch is in OFF position.
c. Ensure TI VOLTMETER and AMMETER indicate zero. If not, mechanically zero
meter pointer using adjustment screw on meter face.
d. Set switches as listed in (1) through (5) below:
(1) VOLTMETER HEATER/OFF/ EXTERNAL MODE switch to OFF.
(2) AMMETER HEATER/OFF/ EXTERNAL MODE switch to OFF.
(3) LEAK TEST switch to OFF.
(4) RUN-START switch to OFF.
(5) HIGH-LOW switch to LOW.
e. Connect TI to appropriate power source.
8. Dc Voltage Accuracy
a. Performance Check
(1) Connect calibrator OUTPUT HI to TI voltmeter input + and calibrator
OUTPUT LO to TI voltmeter input - terminals.
(2) Set ON-OFF POWER switch to ON.
(3) Set VOLTMETER
HEATER/OFF/EXTERNAL
MODE
switch
to
EXTERNAL MODE.
(4) Adjust calibrator output for a 5 V dc indication on TI VOLTMETER. Calibrator
will indicate between 4.25 and 5.75 V dc.
(5) Repeat technique of (4) above using calibrator settings and TI indications listed
in table 3.
(6) Set TI VOLTMETER HEATER/ OFF/EXTERNAL MODE switch to OFF.
b. Adjustments. No adjustments can be made.
Table 3. Dc Voltage Accuracy
Test instrument
Calibrator
indications
indications
(V dc)
(V dc)
Min
Max
10
9.25
10.75
15
14.25
15.75
20
19.25
20.75
24
23.25
24.75