EMX IRB-325 User manual

O P E R A T I N G I N S T R U C T I O N S
Operating Instructions
4564 Johnston Parkway, Cleveland, Ohio 44128
P. 800 426 9912 F. 216 518 9884
Sales Inquiries: [email protected]
Technical Support: [email protected]
www.emxinc.com
IRB-325™
I N F R A R E D P H O T O E Y E

IRB-325™Operating Instructions 1
Document no. 10350104
Contents
Cautions and Warnings
2
Product Overview
2
Specifications
3
Controls and Indicators
3
Connections
3
Operational Settings
4
Troubleshooting
5
Installation
6
Ordering Information
7
Accessories
7
Warranty
7

IRB-325™Operating Instructions 2
Document no. 10350104
Cautions and Warnings
IMPORTANT:
This product is an accessory or part of a system. Always read and follow the
manufacturer’s instructions for the equipment before connecting this product.
Comply with all applicable codes and safety regulations. Failure to do so may
result in damage, injury or death.
Product Overview
The IRB-325 conforms to the UL325 standard when used with the powder coated steel hoods.
Registration reference number 9901994. The IRB-325 photoeye is used as an external entrapment
protection device type B1 non-contact sensor for use with automatic gate and door openers.
The IRB-325 transmitter and receiver have a line of site range of up to 65 feet. The IRB-325 operates on
12 VDC to 24 VAC and draw 150 mA maximum.
The IRB-325 receiver is activated whenever anything interrupts the beam from the transmitter,
triggering the relay output to change state and send a signal to the operator that there has been an
interruption.

IRB-325™Operating Instructions 3
Document no. 10350104
Specifications
Specifications
Power Supply
12-24 VDC, 24 VAC
Power Supply Tolerance
+/- 20%
Current Draw
150mA maximum
Housing Material
UL and CSA Type 4, 4x, 3, 3R, 12, 13 rating and powder
coat steel hood
Relay Type
Form C rating 1A @
Temperature Range
-40F –170F
Connector
Screw terminal isolated contact (2) transmitter (5) receiver
Power on Indicator
Green LED
Detect Indicator
Red LED
Dimensions
H=5.03 in, W=3.06 in, D=3.02 in
Range
6 feet to 65 feet line of sight
Controls and Indicators
Indicators
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 device it must be monitored for
presence and fault condition. The IRB-325 does not produce a monitored output.
Connections
Transmitter
Receiver
Power
Power Positive(+)
Power Positive(+)
Power
Power Negative(-)
Power Negative(-)
Common
Internal Relay Common Output
Normally Closed
Internal Relay Normally Closed Output
Normally Open
Internal Relay Normally Open Output
Green LED
Power Indicator
Green LED
Power Indicator
Two Red LEDs
Detection Indication

IRB-325™Operating Instructions 4
Document no. 10350104
WARNING: To reduce the risk of severe injury or death
1. Read and follow all operation instructions.
2. Always follow gate operator manufacturer installation instructions regarding installation of
Type B1 sensor to the operator.
3. Disable the gate so it is unable to move.
4. With the IRB-325 mounted in place 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 receiver have to turn on. Check the operator control board that the safety
input is actuated.
6. Remove the obstruction and the Red LED’s in receiver will turn off.
7. Should the IRB-325 fail to recognize the obstruction lower the sensitivity by moving jumpers J1
and J2 to a lower position.
8. Should the two Red LED’s be turned on while there is no obstruction increase the sensitivity by
moving jumpers J1 and J2 to a higher position.
Operational settings

IRB-325™Operating Instructions 5
Document no. 10350104
Troubleshooting
Symptom
Possible cause
Solution
Does not detect
interruption
Sensitivity too high
Signal is reflecting off
another surface
Move jumpers J1 and J2 to a lower
position
Check area for highly 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 for
transmitter
Make sure transmitter and
receiver have line of sight
alignment
Receiver
activates but
does not
transmit signal
to operator
Faulty connection
between receiver and
operator control
input
Check wires and terminal
connections to make sure they
are good

IRB-325™Operating Instructions 6
Document no. 10350104
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.

IRB-325™Operating Instructions 7
Document no. 10350104
Ordering Information
IRB-325 Infrared photoeye includes transmitter and receiver
Accessories
IRB-325-HD Set of powder coated steel protective hoods required for UL325
IRB-325-PT Mounting post , black powder coat - 2 in x 2 in x 2 ft
IRB-325-SP Watertight strain relief
Warranty
EMX Industries Incorporated warrants all products to be free of defects in
materials and workmanship for a period of two years under normal use and
service from the date of sale to our customer. This warranty does not cover
normal wear and tear, abuse, misuse, overloading, altered products, damage
caused by incorrect connections, lightning damage, or use other than intended
design.
There is no warranty of merchantability. There are no warranties expressed or
implied or any affirmation of fact or representation except as set forth herein.
EMX Industries Inc. sole responsibility and liability, and the purchaser’s
exclusive remedy shall be limited to the repair or replacement at EMX
Industries option of a part or parts found not conforming to the warranty. In
no event shall EMX Industries Inc. be liable for damages, including but not
limited to damages resulting from non-conformity, defect in material or
workmanship.
Effective date: January 1st, 2002

IRB-325™Operating Instructions 8
Document no. 10350104
4564 Johnston Parkway
Cleveland, Ohio 44128
United States of America
www.emxinc.com
Technical Support: [phone]
te[email protected]
Sales: [phone]
Fax: [phone]
[email protected]
Revision 1.3
2.28.18