TB 9-6625-195-24
(6) Set Calibrator output to minimum.
Table 5. Ac Voltage Accuracy.
Calibrator output
Test instrument indications
Ac
Range
Min
Max
0.35 @ 60 Hz
400.0 mV
343.7 m
356.3 m
0.35 @ 1 kHz
343.7 m
356.3 m
0.35 @ 5 kHz
342.3 m
357.7 m
3.5 @ 60 Hz
4.00 V
3.442
3.558
3.5 @ 1 kHz
3.442
3.558
3.5 @ 5 kHz
3.428
3.572
40.00 V
35 @ 60 Hz
34.42
35.58
35 @ 1 kHz
34.42
35.58
35 @ 5 kHz
34.28
35.72
400.0 V
350 @ 60 Hz
344.2
355.8
350 @ 1 kHz
344.2
355.8
350 @ 5 kHz
342.8
357.2
1000 V
900 @ 60 Hz
872
928
200 @ 5 kHz
190
210
Calibrator output
Test instrument indications
Ac
Range
Min
Max
300.0 V
270.0 @ 60 Hz
265.4
274.6
270.0 @ 1 kHz
265.4
274.6
270.0 @ 5 kHz
264.4
275.6
300 V
270.0 @ 60 Hz
258
282
270.0 @ 5 kHz
258
282
b. Adjustments
(7) Set the TI rotary switch to
V, then set the Calibrator for an output of
3.500 V at 100 Hz.
(8) The TI should display 3.500 0.002. If necessary, adjust R34 (fig. 1) to obtain
the proper display.
(9) Set the Calibrator for an output of 3.500 V at 10 kHz.
(10) The TI should display 3.500 0.010. If necessary, adjust C2 (fig. 1) to obtain the
proper display.
(11) Push RANGE once to put the TI in the 40 V ac range.
(12) Set the Calibrator for an output of 35 V at 10 kHz.
(13) The TI should display 35.00 0.10. If necessary, adjust C3 (fig. 1) to obtain the
proper display.
10. Dc Current
a. Performance Check
(14) Move test lead from TI V Ω RPM jack to the mA jack.
(15) Set TI Function switch to the mA A
position.
(16) Set Calibrator output for the first value listed in the Calibrator output column
perform b below.
