Instructions For Use For The Special Functions Of The Instrument - TESTO 477 Mode D'emploi

7 Application information
Image No.: 1
Flash Rate: 6,000
The harmonic images at 6,000 and 4,000 RPM are not singular, but
double and quadruple. A singular image does appear at 3,000 and
again at 1,500 RPM.
1,500 is one half of 3,000. Therefore, the rate is 3,000 RPM.
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7.2. Instructions for use for the special functions
of the instrument
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PULS μs/PULS deg
On-time of the flash. With this function, the on-time of the flash can
be set. You hereby influence the brightness and focus of the object
being observed. This setting can either be performed absolutely
(microseconds) or relatively (degree).
DELAY ms
Setting of the delay time between the trigger signal and the flash (in
milliseconds). A fixed delay time between the trigger signal and
flash can be set using this value.
Example: The external trigger signal is generated at a position that
is in front of the desired observation point (= flash position of the
stroboscope). In this case, the connected stroboscope would
regularly flash too early. With DELAY ms the value can be set by
which the flash should be delayed.
PHASE deg
Setting of the phase shift (in degrees, relative to frequency)
between the trigger signal and flash. With this value, a fixed angle
between the trigger signal and flash can be set.
Example: The external trigger signal is generated at a position that
is in front of the desired observation point (= flash position of the
stroboscope). In this case, the connected stroboscope would
regularly flash too early. With PHASE deg the delay can be set so
that the stroboscope flashes at a position shifted by the set angle.
This setting is independent of the current rotational speed. With
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2 3
4,000 3,000
4
1,500