Checkline DT-315AEB - Manual (Page 5)

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4.2 Internal Triggering Mode
To operate the stroboscope in internal triggering mode:
1. Firmly plug in power cord (DT-311A only).
2. Turn power switch on.
3. If internal indicator is not on, press “SIG”; the INT light
will then turn on.
4. Aim light beam at object under observation. The optimal distance
between the strobe and moving object is approximately 2 feet.
5. Measure RPM by turning the setter to adjust the flashing rate to the
rotational speed of the object.
NOTE: To achieve a particular rate quickly, use the “x2” or “÷2” switches
and then the setter for fine tuning.
NOTE: Once the internal timer has expired, the strobe will stop flashing
and the display will flash rapidly. To restart the strobe, turn power switch
off, then on, and the cycle will repeat
4.3 External Triggering Mode
To operate the stroboscope in external triggering mode:
1. Connect external trigger or sensor wires according to connector pin
designation:
1 +12V (for powering sensor)
2 Synch output signal
3 External input signal
4 0V (common)
2. Firmly plug in power cord.
3. Turn power switch on.
4. If INT lamp is on, press “SIG” until EXT lamp turns on.
5. Press “MODE” to select proper mode:
FPM: Light will flash in correspondence with input signal; the input
signal will be calculated into FPM and displayed.
deg One cycle of input signal is 360°. A delayed angle will be
displayed from 0 up to 359°. (The delayed angle can be changed
by turning the knob setting as previously described).
msec The above delayed
angle will be displayed
in msec.
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6.0 B ATTERY M ANAGEMENT (DT315A O NLY )
Model DT-315A is equipped with an internal rechargeable battery.
NOTE: Charge battery for approx. 15 hrs. before using the instrument
for the first time.
6.1 Changing the battery
If battery is low, “LLLLL” is displayed and display will eventually
disappear. Charge battery as follows:
1. Turn power off.
2. Insert AC adapter/charger plug
into the strobe receptacle
3. B-CH lamp will be lit during
battery charge; within 2 hours
the battery should be charged
completely.
NOTE: The adapter/charger may be used as a power supply to power the
strobe continuously.
6.2 Replacing the Battery
The life of the built-in battery should last for approximately 300 charges.
If the time period between recharges becomes increasingly shorter, then
replace battery with a new one.
Charge the unit with the included
AC adapter/charger only.
AC adapter/charger receptacle