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Instruction Manual
The IRB-MON2 thru beam infrared photoeye is an external entrapment protection device type B1,
non-contact sensor for use with automatic gates and doors. The photoeye provides a signal to the gate or
door operator that the beam is, or is not obstructed. It operates up to 115 feet over a
wide range of input voltages (6-35 VDC and 12-24 VAC). The receiver green alignment indicator provides
status information, making set-up and alignment easy. The IRB-MON2 provides compatibility with most
operators that accommodate monitored external entrapment devices per UL325.
Cautions and Warnings
This product is an accessory or part of a system. Install the IRB-MON2 according to
instructions from the gate or door operator manufacturer. Comply with all applicable codes
and safety regulations.
Specifications
Operating Range
Power
Current (NC and 10K Monitoring Methods)
Current (Pulse Monitoring Methods)
Connections
Supported Monitoring Methods
Relay Output Configuration
Response Time
Operating Temperature
Dimensions (L x W x H)
Conduit Hole Size (bottom of the housing)
Ordering Information
IRB-MON2-HD – Gray powder-coated metal protective hoods
•
www.GateOpenerSafety.com | (888) 378-1043 | Sales@GateOpenerSafety.com
IRB-MON2
Universal UL325 Thru Beam Photoeye
™
5 to 115 ft (35 m)
6-35 VDC, 12-24 VAC
35 mA DC (when aligned and relay activated)
on only)
15 mA
"Removable" screw terminal for easy wiring
10K, 2-wire pulse, Normally Closed (power cycle)
Form C contacts (NO, COM, NC)
<300 mS (for use in NC or 10K monitoring)
-40° to 170°F (-40° to 77°C)
3.6" (91 mm) x 2.9" (74 mm) x 2.9" (74 mm)
½ Inch NPT
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Summary of Contents for EMX Industries IRB-MON2
- Page 1 UL325. Cautions and Warnings This product is an accessory or part of a system. Install the IRB-MON2 according to instructions from the gate or door operator manufacturer. Comply with all applicable codes and safety regulations.
- Page 2 Monitoring Methods UL325 requires continuous monitoring of all safety devices connected to gate and door operators. Consult the gate or door operator manufacturer’s instruction manual for necessary monitoring method. Normally Closed (Wiring Diagram A): The operator cycles power to the transmitter while monitoring •...
- Page 3 REMOVE OBSTRUCTION: Remove the obstruction and the receiver green LED will turn on solid. TIP: If the IRB-MON2 is aligned but not detecting an obstruction, slowly reduce the receiver sensitivity (counter-clockwise) until the obstruction is detected. This may be applicable for installations with a detection zone of less than 20 ft.
- Page 4 Configuration Settings DIP Switch Settings Monitoring Wiring Output Method Diagram Connections State Normally Closed NC, COM DISABLED 10K Resistive NO, COM Termination ENABLED Two-Wire Pulse (2 Frequency: DC POWER 300Hz, 0Hz) Two-Wire Pulse (3 Frequency: DC POWER 300Hz, 2Hz, 0Hz) FAIL SAFE (Wiring Diagram A or B) –...
- Page 5 Wiring Diagrams Wiring Diagram B: Wire Diagram A: Normally Closed 10K Resistive Termination *If you need a normally open relay, but without a 10K resistor then set Dipswitch 4 to OFF. This is a non-monitored method. Wiring Diagram C: Wiring Diagram D: Two-Wire Pulse (2 Frequency) Two-Wire Pulse (3 Frequency) www.GateOpenerSafety.com | (888) 378-1043 | Sales@GateOpenerSafety.com...
- Page 6 Diagram A or B on page 4 Warranty EMX Industries, Inc. products have a warranty against defects in materials and workmanship for a period of two years from the date of sale to our customer. www.GateOpenerSafety.com | (888) 378-1043 | Sales@GateOpenerSafety.com...
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