TB 9-6120-275-24
a. Performance Check
(1) Connect TI output connector to calibrator using appropriate cable.
CAUTION
Ensure that fuse is removed from TI.
(2) Set calibrator output frequency to 60 Hz and output voltage for 105 V indication
on TI AC VOLTS meter. If ac calibrator does not indicate between 104 and 106 V ac,
perform b below.
(3) Repeat technique of (2) above, using settings listed in table 3. If indications are
not within limits specified, perform b below.
Test instrument
Calibrator indications
AC VOLTS
Min
Max
meter indications
110
109
111
115
114
116
120
119
121
125
124
126
b. Adjustments
(1) Deenergize calibrator output and remove TI rear cover and covers above
terminals of AC VOLTS meter.
NOTE
Some models do not have adjustments on AC VOLTS meter.
CAUTION
Use insulated screwdriver for adjustments.
(2) Set calibrator output for 105 V ac.
(3) Adjust calibration screw located above left terminal of AC VOLTS meter (as
viewed from rear) for a 105 V indication on TI AC VOLTS meter (R).
(4) Set calibrator output for 125 V ac.
(5) Adjust calibration screw located above right terminal of AC VOLTS meter (as
viewed from rear) for a 125 V indication on TI AC VOLTS meter (R).
(6) Repeat (2) through (5) above until TI AC VOLTS meter indications are within
limits specified.