77700-084
Rev.
G
07/02
Page
3
of
13
75.0073 Nov 01 [Rev 8/8/2002]
III.
Attaching HMS Spacer and Presence Sensor to Header
The optional 87503-600 HMS Spacer shown below is used to allow the Presence Sensor to stand off from the
door header by 3”. This ensures that the detection field from the Presence Sensor will not be obstructed by the
Door Mounted Safety Sensor during slight door movement caused by such adverse conditions as stack pressure
within a building. The HMS spacer must also be used on doors that are hinge hung or have offset pivots.
SETTING THE DETECTOR ANGLE
The sensor is factory preset at a 5° angle. To increase threshold coverage, the angle may be changed to 0°, or for
coverage away from the door, change the angle to 10°.
The printed circuit board (PCB) within the sensor housing is held in place by two white plastic support clips. The clips are
notched to allow the PCB to be set at 0°, +5° and +10° angles with the floor surface.
If a change in the angle of detection is desired, perform the following:
Remove both end caps, lenses and center eye shield. Remove one Pan Head mounting screw - does not matter which
side - slide out the PCB and the white clips. Once this is accomplished, you can spread the white clips and re-adjust them
to a different angle. Once angle is set, re-insert the PCB and the white clips back into the aluminum housing and re-install
mounting screw. The PCB may be also be removed by pulling the bottom of the clip and rotating outward as shown below.
CAUTION
REMOVE TERMINAL BLOCK OR REMOVE POWER FROM SENSOR BEFORE PROCEEDING WITH ANGLE
ADJUSTMENT
0° 5° 10°
Top of
Door
Door Header
Presence Sensor
HMS Spacer
Door Mounted
Safety Sensor
Wire Routed from Presence
Sensor through HMS Spacer
into Header
