TB 9-6625-151-40
10. Time of Function Tests
a. Time of Function (TOF) Initial Setup
CAUTION
When connected to TI, do not allow FUNCTION
GENERATORS #1 or #2 to be in continuous trigger mode
(default condition) with output active at any time as this will
quickly damage TI load resistors. Start Phase setting must be
0 (default) except where stated. Do not permit any active Ac
or Dc voltage with output active other than instructed. Ensure
the outputs are inactive except where directed.
(1) Configure FUNCTION GENERATOR #1 as listed in (a) through (f) below:
(a) Press Store/Recall key. Select [Set to defaults]. Select [Yes].
(b) Press Square wave key. Set [period] 20 msec. Set [duty cycle] for 50%.
(c) Set [HiLevel] for 4.5 V and [LoLevel] for 0.0 V.
(d) Press Burst key. Set [# cycles] to 1.
(e) Set [trigger] source to Manual with Positive slope.
(f) Press Store/Recall key. Select [Store 1]. Select [Store].
(2) Continue configuring FUNCTION GENERATOR #1 as listed in (a) through (g) below:
(a) Select [Recall 1].
(b) Press Ramp key. Set [period] 40 msec.
(c) Set [HiLevel] for +5 V and [LoLevel] for -5 V.
(d) Press Burst key. Set [# cycles] to 1.
(e) Set [start phase] for 180 degrees.
(f) Press Store/Recall key. Select [Store 2]. Select [Store].
(g) Press Store/Recall key. Select [Recall 2]. Ensure settings are correct.
(3) Configure FUNCTION GENERATOR #2 as listed in (a) through (h) below:
(a) Press Store/Recall key. Select [Set to defaults]. Select [Yes].
(b) Press Utility key. Ensure [DC] is Off. Set [Sync] to Off.
(c) Press Square wave key. Set [period] 25 sec. Set [duty cycle] for 80%.
(d) Set [HiLevel] for 5 V and [LoLevel] for 0.0 V.
(e) Press Burst key. Set [# cycles] to 1.
(f) Ensure [start phase] set to 0.
(g) Set [trigger] source to Ext on a Positive slope.
(h) Press Store/Recall key. Select [Store 1]. Select [Store].