TB 9-4931-401-24
b. Connect autotransformer to 115 V ac source and adjust for 115 V ac output.
c. Position controls as listed in (1) through (4) below:
(1) POLARITY switch to + (positive).
(2) OUTPUT VOLTAGE controls to 0 (zero).
(3) HIGH VOLTAGE switch to STANDBY RESET.
(4) POWER switch to ON.
d. Allow 30 minutes for TI to warm-up and stabilize.
8. Output Regulation and Ripple
a. Performance Check
(1) Connect equipment as shown in figure 1.
Figure 1. Regulation and ripple equipment setup.
(2) Adjust decade resistor for maximum resistance (999,999?).
(3) Set HIGH VOLTAGE switch to ON.
(4) Adjust OUTPUT VOLTAGE controls to 90 V and record multimeter indication.
Ripple, as indicated on true RMS voltmeter, will be less than 1 mV rms.
(5) Adjust autotransformer output to 125 V. Multimeter will indicate within 2 mV
of value recorded in (4) above.
(6) Adjust autotransformer to 105 V. Multimeter will indicate within 2 mV of value
recorded in (4) above.
(7) Adjust autotransformer to 115 V.
NOTE
To prevent over current trip out, maintain decade resistor
value of at least 9,000? during this check.