Ingersoll-Rand 7940-8770 Benutzerhandbuch

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75.5255.02 XXXXXXXX 
7940-8770 LCN 
 
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DESCRIPTION 
TECHNICAL 
SPECIFICATIONS
 
COMPONENT ID 
INSTALLATION 
TIPS
 
‰  The sensor must be  
     
firmly fastened to     
     
prevent vibration. 
 
The LCN Presence Sensor (PN: 750182-00) is a self-monitored ready overhead-mounted diffused active infrared 
sensing device that provides detection for the triggering of automatic swing door safety functions. When used with 
LCN’s lockout devices, the sensor is programmed to allow two different fields of detection - one for detection when 
the door is in the fully closed position and the other for detection when the door is fully open. While the door is in 
the fully open position, the Presence Sensor extends its coverage back through the threshold area of the doorway, 
to provide coverage that will overlap with LCN’s motion sensors. 
As with all of LCN’s programmable sensing devices, full adjustability is achieved with the use of LCN’s hand-held 
remote control unit. This allows alteration of all of the available functions as well as for inquiry of existing settings. 
Should the need arise; the Presence 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 Presence Sensor’s field of detection can be 
altered without the use of the hand-held remote. If a complete door-mounted safety sensor (DMSS) system is not 
used in addition to the Presence Sensor, LCN recommends the use of a lockout safety beam to allow safety 
signaling if the zone is entered during a door closing cycle. 
 
 
  
 
 
 
 
                               
 
                              
 
                                            
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Installation Height - Variable 
9’-0” max. (recommended 6’-6” to 8’-0”) 
Mounting Angles  
Presence Sensor only 
Presence Sensor with BodyMount 
 
+5°, +10° (factory default setting: +5°) 
0°, +5°, +10°  
Power Supply 
12 to 24 V AC / DC +/- 10% 
Frequency 50-60 
Hz 
Output 
Max. Voltage at contacts: 60V DC / 125V AC 
Max. Current at contacts: 1 A  
Max. switching power:  30 W (DC), 60 VA (AC) 
Relay Hold Time 
0.5 to 9 seconds 
Operating Temperature 
-22°F to +140°F 
Immunity 
Immune to electrical and radio frequency interference 
Cable 
4’- 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 
Left Lens 
4’ Cable 
Red LED 
Right End Cap 
    Left End Cap 
Right Lens 
Center Eye Shield 
‰  The sensor must not have 
any unwanted objects likely 
to move or vibrate in its 
path. 
‰ The sensor should be 
mounted flush with bottom of 
door header.