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IRB-325 Instructions 

 

Document no.     

REV 1.0    

Date 10/25/2007 

 

 

 

Installation

 

 

1.

 

Disconnect the IRB-325 from power before installing or servicing the device. 

 

2.

 

Always follow the instructions of the gate operator manufacturer regarding installation 
of type B1 sensors on the gate operator. The instructions of the gate operator 
manufacturer always supersede any instructions given in this or any other instructions 
by EMX Industries Inc. 

 

3.

 

The IRB-325 has to be powered by 12V – 24V AC/DC 150mA power supply. 

 

4.

 

Do not connect the IRB-325 output to loads higher than 1A @ 30V AC/DC. 

 

5.

 

Connect power to terminals 1 and 2 on IRB-325 transmitter marked “TX” polarity is 
not important. 

 

6.

 

Connect power to terminals 4 and 5 marked “power input” on the IRB-325 receiver, 
marked “RX” polarity is not important. 

 

7.

 

For operators that require normally closed contact for entrapment protection, connect 
terminals 1 (NC) and 2 (COM) to the designated terminals in the gate operator. 

 

8.

 

For operators that require normally open contact for entrapment protection, connect 
terminals 2 (COM) and 3 (NO) to the designated terminals in the gate operator. 

 

9.

 

Install the IRB-325 according to instructions from the gate operator manufacturer. The 
intent of External Entrapment Protection Device Type B1 non-contact sensor is to 
protect a person from being accidentally injured by the moving gate.  

 

10.

 

The IRB-325 is housed in a NEMA 4X enclosure. To insure the integrity of the 
enclosure make sure the covers are attached and closed tight with the help of four 
plastic screws provided. The wiring to the IRB-325 Enclosure has to enter via 
watertight strain relief or watertight conduit connector. 

 

11.

 

 The IRB-325 must be powered by Class 2 circuits only, wiring must be segregated 
from other circuits or insulation must be provided that is suitable for the highest 
voltage for those circuits. 

 
 

 
 
 
 
 

 
 
 
 
 
 

 
 
 
 
 

 
 

Summary of Contents for IRB-325

Page 1: ...g Instructions This product is an accessory or part of a system Always read and follow the manufacturer s instructions for the equipment you are connecting this product to Comply with all applicable c...

Page 2: ...IRB 325 Instructions 2 Document no REV 1 0 Date 10 25 2007...

Page 3: ...tions Transmitter Receiver The IRB 325 is an external entrapment device Type B1 non contact sensor for use with automatic gate operators If the IRB 325 is used as the primary entrapment protection dev...

Page 4: ...lly closed contact for entrapment protection connect terminals 1 NC and 2 COM to the designated terminals in the gate operator 8 For operators that require normally open contact for entrapment protect...

Page 5: ...e and powered make sure the transmitter TX is in line of sight of the receiver RX 5 Introduce an obstruction in form of a hand between the IRB 325 transmitter and receiver Two Red LED s on the receive...

Page 6: ...ighly reflective surfaces Red detect LED stays on Sensitivity too low Transmitter does not have power Receiver does not see transmitter Move jumpers J1 and J2 to a higher position Check power source f...

Page 7: ...red photocell includes transmitter and receiver Accessories IRB 325 HD Set of 2 powder coated steel protective hoods required for UL 325 IRB 325 PT Mounting post 2 in x 2 in x 2 ft black powder coat I...

Page 8: ...tructions 8 Document no REV 1 0 Date 10 25 2007 4564 Johnston Parkway Cleveland Ohio 44128 United States of America WEB http www emxinc com E mail salessupport emxinc com Telephone 216 518 9888 Fax 21...

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