TB 9-6625-2121-24
c. Position controls as listed in (1) through (4) below:
(1) VOLTAGE RANGE switch to LOW.
(2) RAISE VOLTAGE control to 0 (ZERO START).
(3) CURRENT RANGE switch to X1.
(4) HIGH VOLTAGE pushbutton OFF.
d. Ensure that the five-pronged shorting plug, supplied with TI, is inserted into
INTLK & AUX POWER socket (front panel).
e. Connect RETURN and GROUND terminals, using jumper clip supplied with TI.
f. Connect TI to a 115 V ac source.
g. Set AC POWER switch to ON and allow at least 20 minutes for warm-up.
8. Dc Voltage
a. Performance Check
(1) Connect multimeter to HV output lead, supplied with TI, and RETURN
terminal, using high voltage probe supplied with digital voltmeter.
(2) Press HIGH VOLTAGE ON pushbutton.
(3) Adjust RAISE VOLTAGE control until dc KV meter indicates 10 on lower scale.
If multimeter does not indicate between 9.760 and 10.240 V dc, perform b below.
(4) Repeat technique of (3) above for dc KV meter indications listed in table 3.
Multimeter will indicate within limits specified.
Table 3. Voltage Accuracy
Test instrument
Multimeter indications
dc KV meter
(V dc)
indications
(lowersScale)
Min
Max
8
7.760
8.240
6
5.760
6.240
4
3.760
4.240
2
1.760
2.240
(5) Adjust RAISE VOLTAGE control fully ccw and press HIGH VOLTAGE
pushbutton OFF.
b. Adjustments
(1) Adjust RAISE VOLTAGE control for a 1000 V dc indication on multimeter.
(2) Adjust R5 (located rear of front panel, right upper corner) until dc KV meter
indicates 10 on lower scale (R).
