TB 9-6130-285-24
DECADE RESISTOR
HI
LO
MULTIMETERNO. 1
TI
+S
COM
-S
OUT
AUTOTRANSFORMER
POTENTIAL
100A
10 A
COM
DC CURRENT
SHUNT
Figure 3. Load and line regulation (constant current).
(6) Reduce the decade resistor resistance to 0.
(7) Allow the multimeter indication to stabilize and repeat step (4) above.
(8) The difference between the values obtained in steps (4) and (6) above must be
within table 1 Load Regulation CC limits.
(9) Set the decade resistor resistance for maximum current at maximum voltage
from ratings in table 1. Reduce the decade resistor resistance until TI front panel display
indicates FS amps and ensure CC enunciator is illuminated.
(10) Adjust the autotransformer until the meter indicates 105 V ac, unless minimum
line voltage is otherwise specified in table 1.
(11) Divide the multimeter indication by the DC current shunt certified resistance
and record results.
(12) Adjust the autotransformer until the meter indicates 125 V ac, unless maximum
line voltage is otherwise specified in table 1.
(13) Repeat step (10) above.
(14) The difference between step (10) and (12) above must be within table 1 Line
Load Regulation CC limits.
(15) Using TI front panel controls, program voltage and current outputs for 0.
b. Adjustments. No adjustment can be made for 1791; for all others see
9
