Optical Scientific Inc
OFS 2000FW User’s Guide
P/N 1910-901-1
Rev. 03/28/13
10
2.3 Flange Mounting Examples
Proper
Flange Alignment
Improper
Flange Alignment
OFS Transmitter and
Receiver are aligned on
the same axis. The
flanges and openings will
have a straight view of
each other.
One (or both) flanges
installed crookedly, the
Transmitter and Receiver
will be at angle to each
other. The openings will
not be aligned.
With proper care in
mounting the flanges, the
transmitted light beam
will fall squarely on the
receiver opening on the
opposite side. The
transmitter will require
minor adjustment
(aiming) for peak
efficiency.
For further details, see
Section 6.2
“Transmitter
Setup
”.
With the light beam off-
center. The transmitted
light beam will still reach
the receiver
– and the
system will work.
However, the received
signal will be weaker,
and performance will be
compromised.
Note: OFS uses an eye-safe red LED emitting only a small amount of visible light. The light beam is
shown for illustration purposes
These photographs show an example of poor
mounting flange alignment. The mount on the
opposite side is almost out of view. Again the
OFS system was able to function, but response
was less than satisfactory. The misalignment is
immediately noticeable to the eye.
The OFS has proven over and over to be a top performer in flow monitoring. It is robust, reliable, and accurate,
even in adverse environments; but it cannot report what it doesn’t “see”. Before installation, be sure that the
mounting flanges are aligned properly on the focal axis from Transmitter to Receiver.
