Connector
Mounting Holes
DIP Switches
Sensitivity
Pattern Width
Cover
DH94D
Sliding Pedestrian Door Presence Sensor
INSTALLATION INSTRUCTIONS
8701 Castle Park Drive
Indianapolis, Indiana 46256
Telephone: (800) 842-2545/(317) 842-2545
www.mssedco.com
Page 1
(/MANU) DH94Dv1105
Section 1
General Description
The DH94D is a floor reflection method (FRM) active
infrared presence sensor designed to provide medium
range safety detection for automatic sliding doors. The
DH94D is the ideal solution for entrances with a shallow
approach or for adding threshold protection to any sliding
door.
• Pattern depth adjustable from curtain-like
1 row up to 4 rows via dip switches.
• Pattern angle adjustable 0-5 degrees
via mechanical rotation of the sensor
housing.
• Pattern width adjustable via mechanical knobs.
• 4 frequency settings to avoid interference from other
sensors in close proximity.
• Self-monitoring microprocessor controlled diagnostics
includes automatic countermeasures againse adverse
conditions such as falling snow, rain, flying insects,
strong sunlight and electrical noises.
• 4 presence timer settings: 2, 15, 60 and 180 seconds.
Section 2
Parts Identification
Section 3
Mounting Information
1. Do not mount higher than 10 ft. (3m).
2. Do not leave any objects which may move in the
detection
pattern.
3. Ensure rain or snow will not fall directly on unit.
4. Ensure snow or water can not accumulate on floor.
5. Ensure a minimum of reflected sunlight from the
floor.
6. Avoid steamy environments.
7. Use different frequency settings for sensors in close
proximity.
8. Use Infrared Safety Beams when required.
Section 4
Mounting and Wiring
1. Using the mounting template provided, drill mounting
and wire holes.
2. Remove cover using a screwdriver or coin.
Mounting
Template
Mounting
Screws
Connection Cable
5 ft. (1.5m)
Instructions
Accessories
9'
(2.7m)
Use Alternate Frequency.
1
2
3
4
5
6
A
B
7
8