TB 9-6625-1961-24
(25) Turn AMPLITUDE switch to 1m. Multimeter will indicate between 99.75 and
100.25 mV.
b. Adjustments
(1) Adjust R205 (fig. 1) until multimeter indicates 100.00 V (R).
(2) Adjust R340 (fig. 1) until multimeter indicates 10.000 V (R).
9. Deflection Error Readout
a. Performance Check
(1) Install TI into power module.
(2) Connect resistance standard to TI AMPL OUTPUT connector, using precision
cable supplied with TI.
(3) Connect multimeter across resistance standard.
(4) Adjust resistance standard to 1 M .
(5) Energize power module by pulling power button out. Allow 10 minutes for warm-up.
(6) Turn AMPLITUDE switch to 100 and release VARIABLE (out) control.
(7) Adjust VARIABLE (out) control until multimeter indicates 100.00 V.
If
DEFLECTION ERROR does not indicate between 0.1% LOW to 0.1% HIGH, perform b (1) below.
(8) Repeat technique of (7) above at multimeter indications listed in table 4.
DEFLECTION ERROR will indicate within limits specified.
Table 4. Deflection Error
Test instrument DEFLECTION ERROR indications
Multimeter indications (V dc)
108.7
7.9 to 8.1 % LOW
6.7 to 6.9 % LOW1
107.3
106.5
6.0 to 6.2 % LOW
105.6
5.2 to 5.4 % LOW
104.6
4.3 to 4.5 % LOW
103.2
3.0 to 3.2 % LOW
96.9
3.1 to 3.3 % HIGH
95.6
4.5 to 4.7 % HIGH
94.7
5.5 to 5.7 % HIGH
93.9
6.4 to 6.6 % HIGH
7.1 to 7.4 % HIGH2
93.2
92.6
7.9 to 8.1 % HIGH
1Perform
b (2) if required.
2Perform
b (3) if required.
b. Adjustments
(1) Adjust R450 (fig 1) until DEFLECTION ERROR indicates 0.1% HIGH, then
0.1% LOW, and for a final adjustment of 0.0% with both HIGH and LOW indicator lights
slightly illuminated (R).
(2) Adjust R425 (fig 1) until DEFLECTION ERROR indicates 6.8% LOW, then
final adjustment to center of 6.8% LOW (R).
