General Installation
Vibrex 2000 and Vibrex 2000 Plus User Guide 55
3. Mount the photocell probe in an optimum position, using the
photocell bracket (see the example diagram below).
In most cases, the user can collocate the probe with the Velocimeter,
but for some installations, the user may need to mount the probe by
itself, using the single mounting screw provision.
NOTE: The user may need to experiment with several mounting
techniques and/or positions to find the optimum positioning.
Incident Light -
Unwanted light that reflects into the photocell probe
could result in incorrect measurements. This type of light is called
incident light, that is, light hitting the assembly when the target is not in
line with the beam. For example, light reflected from a shiny surface that
enters the photocell probe is incident light.
PHOTOCELL
BRACKET
PHOTOCELL
PROBE
VELOCIMETER
BRACKET
VELOCIMETER
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