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7.0 STROBE DELAY (NOVA-PRO 500 ONLY)
The Nova-Pro 500 has multiple special effects that can be used to inspect
moving machinery in different ways. The Delay effects depend on
whether a Laser Module is installed and the Mode of Operation. Delay, or
Phase Shifting, allows the user to view different positions of the rotating
machinery relative to a virtual or fixed trigger point (via External sensor or
internal Laser).
7.1
Internal Phase Delay (JOG)
In the internal STROBE Mode the Delay is relative and no external
trigger is used. This is referred to as JOG. Once the flash rate has
been adjusted to give a stopped motion image, the JOG buttons
(
◄
and
►
icons on the touchpad) may be used to increase or
decrease the phase of the image with respect to its original position
by the amount set in the JOG Menu.
Use this feature to bring a reference mark, such as a keyway, into your
line of sight. It may be necessary to adjust the flash rate to keep the
target static if the speed is drifting.
Use the JOG Menu to set a PHASE Delay of –30°. The
display will show PHASE with the left and right arrow
icons. Use the joystick to adjust the flash rate to stop motion of the
rotating object. Then use the
◄
and
►
icon touch buttons to move
the phase of the objects as shown in Figure 8 (below).
Figure 8 Phase Shifting by -30
°
, -60
°
, -90
°
