How to Operate the Strobe Light
Internal Mode - Standard Strobe Operation
Strobe Light
4 - 3
User Manual
for checking harmonics in the internal flashing
mode.
Alternate Knob Function (multiple by 2, 3,
4, 5, etc.)
The tuning knob functions differently when
ALT.
is
displayed. The current flash rate is used to add /
subtract. The knob will add (counter clockwise) or
subtract (clockwise) that initial flash rate for each
“click” the knob is turned. This allows the user to
multiply the initial flash rate by 2, 3, 4, 5, etc., up to
the maximum flash rate.
Using this feature on fan blades, one can superimpose
the blades on top of each other and check for blade
tracking, bent blades, lead and lag tests, etc.
For example:
A 3 bladed fan is spinning at 3600 RPM. The strobe
is flashing at 3600 FPM. Press the
ALT FUNCTION
button to display
ALT.
Then turn the knob counter
clockwise 2 clicks. The strobe will now flash at
10,800 FPM (effectively 3600 times 3). The fan’s
blades are superimposed on each other. One can now
see if the blades are out of alignment, bent, etc., by
viewing the blades from the front or viewing from the
side edge of the blades.
To select a flash rate from a Preset (memory)
location:
•
Press the
ALT FUNCTION
button and then the
MEMORY
button.
•
READ
displays.
•
Turn the tuning knob to cycle through the
preset flash rates.
