77700-084
Rev.
G
07/02
Page
2
of
13
75.0073 Nov 01 [Rev 8/8/2002]
PRODUCT SPECIFICATION
The 77700-900 Presence Sensor is an overhead-mounted diffused active infrared sensing device that provides
detection for the triggering of automatic door safety functions. Applications include swinging, bi-folding and low-
energy door operation.
The sensor is programmed to allow two different fields of detection - one for detection when the door is in the
fully closed position and one for detection when the door is in the fully open position. While the door is in the fully
open position, the sensor extends its coverage beyond the threshold area of the doorway, to allow coverage that
will overlap that of the approach side motion sensor.
As with all of Dor-O-Matic’s programmable sensing devices, full adjustability is achieved with the use of the
74610-900 universal hand-held remote control unit. This allows alteration of all of the available functions as well
as checking existing settings. Should the need arise, the sensor may also be tuned by means of two sensor-
mounted buttons contained on the PC Board within the unit. With these two buttons, the sensor’s field of
detection can be altered without the use of the hand-held remote.
TECHNICAL SPECIFICATIONS
Installation Height - Variable
9’-0” max. (recommended 6’-6” to 8’-0”)
Mounting Angles
0°, +5°, +10° (factory default setting: +5°)
Power Supply
24 V AC / DC +/- 10%
Frequency 50-60
Hz
Output
Max. voltage at contacts: 60V DC / 125V AC
Max. current at contacts: 1 A (Resistor)
Max. power supply: 30 W (DC), 120V (AC)
Relay Hold Time
1 to 10 seconds
Operating Temperature
-22°F to +140°F
Immunity
Immune to electrical and radio frequency interference
Cable 6’-six
conductor
cable
Weight
1lb. 11 oz. (765g)
Dimensions
11.8”L (305 mm.) x 1.9”H (51 mm.) x 1.9”W (46 mm.)
Material
Aluminum & ABS plastic
Housing Color
Black anodized aluminum
INSTALLATION PROCEDURE
I.
Disassembly of Sensor for installation
Remove left & right end caps. Slide the 2 lenses out. Remove center eye-shield. Remove PCB Board.
II. Sensor
Installation
Install the sensor at the bottom of the header on the swing side of the door.
Lens
Lens
Red / Green LED
Aluminum Housing
Center Eye Shield
Lens Will Slide out when
End Caps are removed
Left End Cap
Right End Cap
