IRU SERIES ULTRASONIC SENSORS
Installation Guide
IRU-2000’s, IRU-3430’s, IRU-5000’s, IRU-6420’s, & IRU-9420’s
Automation Products Group, Inc.
1025 W 1700 N Logan, UT 84321
Thank You
1. Description
2. How To Read Your Label
3. Warranty
4. Installation Guidelines
5. RST-3002 Programming
Module Wiring
6. IRU Pinouts
7. Dimensions
8. General Care
9. Repair Information
10. Hazardous Location
Wiring
Table of Contents
5
Your IRU should be installed in an area—indoors or outdoors—which meets the following
conditions:
بAmbient temperature between -20° to 140°F (-30° to 60°C).
بAmple space for maintenance and inspection
Additional care must be taken to ensure:
بThe sensor has a clear, perpendicular sound path to the surface being monitored.
بThe sensor is mounted away from tank or vessel walls and inlets.
بThe sound path is free from obstructions and as open as possible for the 9° off axis
beam pattern.
بThe sensor is tightened by hand to avoid cross-threading.
*Important: For user interface guide and sensor conguration see the full user manual.
4Installation Guidelines
Part # 122950-0017
Doc #9004254 Rev B
Each label comes with a full model number, a part number, and a serial number. The
model number for your IRU will look something like this:
The model number tells you exactly what you have. You can also call us with the model,
part, or the serial number and we can help you.
You’ll also nd all hazardous certication information on the label.
SAMPLE: IRU-6429-C6
The IRU series is APG’s line of general purpose ultrasonic sensors. With a choice of
operating ranges from just a few inches to as far as 50 feet, the IRU product line is
designed to t a wide range of industrial automation applications. It is certied for
installation in hazardous areas in the US and Canada by CSA for Class I, Division 2, Groups
C & D and Class I, Zones 2 environments.
1Description
2How To Read Your Label
3Warranty
RST-3002 Programming Module Wiring
IMPORTANT: Refer to section 10 for Hazardous Location Wiring.
SENSOR 24 VDC
Sensor
DC Ground
Sensor
+24 VDC
RST-3002
To Computer
USB Port
24 VDC
Power Supply
_
+
Figure 5.1
All IRU sensors (excluding the IRU-6429S and IRU-9429S) are fully programmable using
an RST-3002 programming module. The RST-3002 is connected in series between the
sensor and its power source using the two 2-pin Phoenix connectors on the module
(See Figure 5.1). 15-28 VDC from the power source is connected to one 2-pin connector,
while the VDC + and DC Ground of the sensor is connected to the module through the
second 2-pin connector. When power is applied, the red LED between the Phoenix
connectors on the RST should illuminate and the sensor should start audibly “ticking”.
The operating parameters of the sensor can then be adjusted using the Windows-
based utility software (available at www.apgsensors.com/resources/product-resources/
software-downloads).
+24 VDC
DC Ground
Clock Sync
Digital Display Output
Relay
Relay
+24 VDC
DC Ground
Clock Sync
Digital Display Output
4-20mA Circuit Power (+24 VDC)
4-20mA Output
IRU-2002 IRU-2003
21
43
5
6/C Cable IRU-2004-C IRU-2005-C
Red +24 VDC +24 VDC
Black DC Ground DC Ground
Green Clock Sync Clock Sync
White NPN trip NPN 2
Blue T (+) or (B) NPN 1
Orange T(-) or (A) 4-20 mA Out
5-pin MC IRU-2004-M IRU-2005-M IRU-XXX5-M IRU-XXX9-M
1 Brown +24 VDC +24 VDC +24 VDC +24 VDC
2 White T (+) or (B) NPN 1 NPN 1 Voltage Out
3 Blue DC Ground DC Ground DC Ground DC Ground
4 Black T(-) or (A) 4-20 mA Out 4-20 mA Out Analog Ground
5 Grey NPN trip NPN 2 NPN 2 Excitation
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43
5
5-pin MC IRU-XXX3-M
1 Brown +24 VDC
2 White Not used
3 Blue DC Ground
4 Black 4-20 mA Out
5 Grey Not used
3/C Cable IRU-XXX3-C
Red +24 VDC
Black DC Ground
White 4-20 mA Out
5/C Cable IRU-XXX5-C IRU-XXX9-C
Red +24 VDC +24 VDC
Black DC Ground DC Ground
White NPN 1 Voltage Out
Orange 4-20 mA Out Excitation
Green NPN 2 Analog Ground
8-pin MC IRU-XXX9S-M
1 White Voltage Out
2 Brown +24 VDC
3 Green Analog Ground
4 Yellow RS-232 TX
5 Grey RS-232 Ground
6 Pink RS-232 RX
7 Blue DC Ground
8 Red Excitation
11
2
2
3
3
4
4
5
5
6
67
7
8
8
8/C Cable IRU-XXX9S-C
Red +24 VDC
Black DC Ground
Orange Excitation
White Voltage Out
Green Analog Ground
Brown RS-232 Ground
Yellow RS-232 TX
Blue RS-232 RX
6IRU Pinouts
This product is covered by APG’s waranty to be free from defects in material and
workmanship under normal use and service of the product for 24 months. For a full
explanation of our Warranty, please visit www.apgsensors.com/resources/warranty-
certications/warranty-returns/. Contact Technical Support to recieve a Return Material
Authorization before shipping your product back.
Thanks for purchasing an IRU ultrasonic sensor from us! We appreciate your business
and your trust. Please take a moment to familiarize yourself with the product and this
manual before installation. If you have any questions, at any time, don’t hesitate to call us
at 888-525-7300.
