TB 9-6625-1966-24
(5) FREQUENCY RANGE switch to X10 to X10K.
(6) SWEEP TIME switch to 100-10 and VERNIER control fully ccw.
d. Connect function generator to autotransformer and connect autotransformer to a
115 V ac source.
e. Adjust autotransformer for 115 V output and energize equipment. Allow 1 hour for warm-up.
NOTE
Do not remove top cover from function generator during warm-up.
36. Model 3305A Calibration
NOTE
When any parameter specified in paragraph 36 is not within
tolerance, proceed to paragraph 38 and perform all the
adjustments for model 3305A before continuing with the
a. Performance Check
(1) Connect frequency counter to function generator CHANNEL B OUTPUT.
(2) Set function generator CHANNEL B function switch to SQUARE WAVE and
AMPLITUDE control to midrange.
(3) Rotate TI MAN. START/MAN. STOP control fully cw. Frequency counter will
indicate between 90 and 110 kHz.
(4) Set TI FREQUENCY RANGE switch to X1 to X1K. Frequency counter will
indicate between 9 and 11 kHz.
(5) Rotate TI MAN. START/MAN. STOP control fully ccw. Frequency counter
will indicate between 909 and 1111 ms.
(6) Set TI FREQUENCY RANGE switch to X.1 to X100. Frequency counter will
indicate between 9.1 and 11.1 seconds.
(7) Rotate TI MAN. START/MAN. STOP control fully ccw. Frequency counter
will indicate between 900 and 1100 Hz.
(8) Adjust TI MAN. START/MAN. STOP control fully ccw and set FREQUENCY
RANGE switch to X1 to X1K.
(9) Adjust TI START dial to 1 Hz. Frequency counter will indicate frequency
between 0.9 and 1.1 Hz and output period between 909 and 1111 ms.
(10) Repeat technique of (9) above for TI START control settings listed in table 9. At
each setting, frequency counter will indicate as specified.