TB 9-4931-700-50
(7) Set thermal transfer standard to ac balancing state. Adjust TI C9 (fig. 2) to
obtain null indication on thermal transfer standard meter with its null X5 pushbutton
pressed (R).
a. Performance Check
(1) Connect equipment as shown in figure 5.
(2) Position TI controls as listed in (a) through (f) below:
(a)
Press VOLTAGE RANGE 1000 V ext. pushbutton.
(b)
Set voltage controls to obtain an indication of 100.000 V.
(c)
Press FREQUENCY RANGE X1K pushbutton.
(d)
Adjust FREQUENCY control to obtain FREQ scale indication of 1.0
(e)
Press ERROR RANGE 0 pushbutton.
(f)
Press OUTPUT ON pushbutton.
NOTE
Each time measurement of TI output is directed, a minimum
of four readings should be taken. The first reading should be
disregarded and the other three readings averaged. The
average reading is the indication to be recorded for future
use. The ac/dc voltmeter (A1) indication s ould be read
h
between 15 and 20 seconds after thermal transfer standard
(A9) transfers to the dc output state.
20
