7
NOTE:
There are maximum and minimum values in each mode
beyond which you cannot adjust. If you are adjusting the
rate and you reach a value which on the next increment would
exceed the maximum flash rate, the display will not increment.
The same is true if you try to adjust the flash rate below the
minimum flash rate.
To multiply or divide the current flash rate by 2:
In addition to the knob, there are two buttons on the back panel
marked
x2
and
÷2
. This enables the user to instantly double or halve
the reading on the display to the maximum or minimum values allowed.
This feature is useful 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 as an adder. The knob will add (counter
clockwise) or subtract (clockwise) that initial flash rate for each “click”
the knob is turned. This in effect allows the user to multiply the initial
flash rate by 2, 3, 4, 5, etc up to the maximum flash rate. This is very
helpful on fan blades. Using this feature, 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 fans blades
will be all 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.
14
while pushing it into place (see Figure 4). Make sure the lamp is
in straight and centered in the reflector hole.
CAUTION:
Do NOT allow the reflector to contact the lamp.
4.
Reinstall the reflector and then position the front lens in place
matching up the notches on the lens with the two small tabs on
the housing to prevent lens rotation (see Figure 4). Push the tabs
on the front rim outward and press the lens into place.
Figure 4 Lamp Replacement
Red Dots
Notches
