D400-73-00 9 I56-2294-03R
must be set by the operator. Periodically throughout the
fine adjustment step the detector will need to re-adjust its
“electronic amplifier gain” setting. When this occurs it will
be indicated by the dual digital readout as “- -”. When this
occurs, cease any further adjustment until the display again
reads a number value.
1. Insure that neither you nor any other objects are in the
line of sight between the detector and the reflector.
2. Depress the Alignment switch once. Both the digital dis-
play and the yellow LED should turn on indicating that
alignment mode has been entered. The display should
begin reading “- -” signifying an electronic gain adjust-
ment. After a few moments the display will indicate a
numeric value near 20. If the display reads “Lo” then
the detector is not receiving enough light from the reflec-
tor. Go back and repeat the coarse alignment step and
verify that the proper number of reflectors is used for the
installed distance.
NOTE:
The display will continue to read “Lo” until the
detector receives enough light from the reflector to
continue with the fine adjustment step.
NOTE:
In alignment mode (indicated by the yellow LED
and the numeric display) the sensitivity select and
test switches are disabled.
3. With the display reading a numeric value, begin adjust-
ing the horizontal and vertical alignment knobs one at
a time in the direction that increases the numeric signal
level on the display. Continue adjusting each axis one
at a time going back and forth between them until a
peak value is indicated. If a value of 90 is achieved, the
detector will re-adjust the electronic gain once again.
This will be indicated by a “- -” reading on the display.
When this happens halt any further adjustment until the
display again reads a numeric value. This process may
occur more than once during the fine adjustment step.
NOTE:
Each time the display reads a value of 90 or greater
the detector will reduce the electronic gain. Each
time the display reads a value of 10 or less the
detector will increase the electronic gain.
4. Once satisfied that it is not possible to achieve a higher
reading on the display, depress the alignment switch to
complete the fine adjustment step. The digital display
readout will turn “OFF” and the yellow LED will remain
“ON”.
NOTE:
It may not be possible to achieve a value near 90
on the display during the last adjustment iteration.
The final value of the display will not likely be near
90. This is normal. It is due to the detector reduc-
ing its electronic gain each time a value of 90 is
achieved. When this occurs the detector resumes
with less electronic gain than previously when 90
was achieved. Less gain makes it more difficult
to achieve higher values. Final values anywhere
between 20 and 90 are acceptable if no further
increase can be achieved.
NOTE:
The alignment procedure is not complete yet.
At this time it is possible to set the sensitivity of the detec-
tor using the sensitivity switch and digital display. See
the Sensitivity Selection section of this manual for further
details.
Step 3. Final Gain Adjustment
Refer to Figure 13 for this step.
In this step, the detector will electronically adjust its inter-
nal gain one final time. It is necessary to complete this
step with the outer housing installed since the housing will
change the amount of light received from the reflector.
1. Tighten the optics lock down screws so the optics are
secure.
2. Install the outer housing of the detector. The housing is
installed by tightening four screws, one in each corner
of the housing. The screws are captivated in the plastic
of the housing and cannot fall out during assembly.
3. Remove the protective film from the front surface of the
outer housing.
NOTE:
The housing contains a gasket seal that protects
the detector circuitry from corrosion and moisture
sources. To insure that the gasket seal performs
correctly it is necessary to fully tighten all four of
the screws that hold the outer housing in place.
4. To initiate the final electronic gain adjustment, the reset
switch must be depressed. Once depressed the yellow
LED will begin to blink. This indicates that the detector
is adjusting the electronic gain setting. Once complete,
the yellow LED will stop blinking and the green LED will
begin blinking. This indicates that the gain adjustment
was successful.
NOTE:
Use caution not to block the line of sight between
the detector and reflector in this step.
5. Install the outer aesthetic ring by snapping it onto the
outer housing.
