1.2.2. CONTROLS AND CONNECTORS.
All controls and connectors are conveniently located on the panel
of the instrument. See Figure 1-1 for location of controls and connectors
referred to in Table 1-1.
CONTROLS AND CONNECTORS
(see Figure l-l)
Turns power on and off.
Controls flashing rate of light by rotating
fluted rim. Dial is calibrated directly in
revolutions per minute.
Selects any of three RPM (internal oscil -
Iator) ranges, plus three external -input
110-690 RPM High Intensity 700 RPM max
670-4170 RPM - Med Intensity 4000 RPM max*
4000 -25,000 Low Intensity -25,000 RPM max
Indicates correct setting of Calibration
adjustments (Ref. 5) for calibrating RPM
dial to power-line frequency.
Calibration adjustments used for calibra-
ting RPM dial.
Trigger pulse available at this jack for
triggering Strobotac Types 1531 and 1538,
Type 1539 Stroboslave, or Type 1532 Stro -
bolume. (Refer to paragraph 2.9 and 2.10
for connection cables required.)
Used for connecting Stroboscope to external
synchronizing signal from electrical device
or mechanical contactor.
Produces and aims flashing light.
Permanently attached six -foot power cord.
For storage, cord is wound clockwise around
range-switch knob and reflector; plug is
secured by sliding it onto holder pin (Ref
Secures plug-end of power cord when in-
strument is to be scored in case.
`Flashes at 3600 rpm until external signal is plugged in.