TB 9-4920-464-24
(5) Ensure PARAMETER SELECTOR switch is set to VPRI. TI AC VOLTMETER
will indicate 5.000 0.3 V AC.
(6) Turn PARAMETER SELECTOR switch to IPRI. TI AC VOLTMETER will
indicate between 0.050 0.010 A AC.
(7) Set calibrator output to Standby.
(8) Ensure TI POWER switch is in the OFF position.
(9) Connect equipment as shown for Connection A in figure 5 below.
DC
DC
(10) Turn TI FUNCTION SELECTOR switch to AIRCRAFT SYSTEM TEST and
turn TI POWER switch to ON.
(11) Set power supply #2 to 18 0.010 V DC and power supply #3 to 17 0.010 V DC.
(12) Connect multimeter as shown in Connection B, figure 5. Multimeter will read
17.000 0.020 V DC.
(13) Turn PARAMETER SELECTOR switch to settings listed in table 6 below. TI
meter readings will indicate within limits specified in table 6 below.
PARAMETER SELECTOR switch
Input from DC power supply
TI Meter readings
VT.
18 V DC 0.010
17.980
18.020
VC
17 V DC 0.010
16.980
17.020
VX.
Difference of both PS
0.9600
1.040
(14) Deenergize and disconnect equipment and cables connected in figure 5 above.
(15) Ensure TI POWER switch is in the OFF position
(16) Connect equipment as shown in figure 6 below.