APG IRU-2420 Operating Manual

APG

IRU Series Ultrasonic Sensors

User Manual

IRU-2000’s, IRU-3430’s, IRU-5000’s, IRU-6420’s, & IRU-9420’s

Doc #9002662

R

Part #200259

Rev D, 04/19

Table of Contents

Introduction ................................................................................................................ iii

Warranty and Warranty Restrictions .................................................................... iv

Chapter 1: Specications and Options.....................................................................1

Dimensions ....................................................................................................................................1-2

Specications ................................................................................................................................3-7

Electrical Connectors and Pinout Tables ................................................................................... 8

Model Number Congurator .......................................................................................................... 9

Wiring Diagrams .......................................................................................................................10-12

Chapter 2: Installation and Removal Procedures and Notes ............................13

Tools Needed ................................................................................................................................... 13

Installation Notes .....................................................................................................................13-14

Mounting Instructions ................................................................................................................. 14

Electrical Installation ....................................................................................................................15

Software Installation ......................................................................................................................15

Removal Instructions ....................................................................................................................15

Chapter 3: Set Up and Operation ............................................................................16

User Interface ............................................................................................................................ 16-18

IRU Sensor Parameters .......................................................................................................... 19-24

Relay and NPN Trip Output Conguration ........................................................................ 25-26

Sensor Readings and Communication Status ................................................................... 26-28

Control Buttons ........................................................................................................................28-29

Saving and Loading Parameter Files ......................................................................................... 29

Chapter 4: Maintenance ...........................................................................................30

General Care .................................................................................................................................... 30

Troubleshooting ............................................................................................................................. 30

Calibration ..................................................................................................................................30-31

Repair and Returns ........................................................................................................................ 31

Chapter 5: Hazardous Location Drawing and Certication ..............................32

Hazardous Location Drawing ...................................................................................................... 32

CSA Certicate of Compliance .............................................................................................. 33-35

ii

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Introduction

Thank you for purchasing an IRU ultrasonic sensor from APG. We appreciate your business! Please take a
few minutes to familiarize yourself with your IRU and this manual.

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. Sensor adjustments, such as sensitivity and ltering options, are made by

interfacing the sensor to a PC using an RST module and APG’s free Windows based programming software.
IRU sensors incorporate internal temperature compensation for increased accuracy under varying
environmental conditions. The sensors are housed in PC/PET or UV resistant ABS to seal out moisture and
resist a wide range of chemicals.

Reading your label

Every APG instrument comes with a label that includes the instrument’s model number, part number, serial
number, and a wiring pinout table. Please ensure that the part number and pinout table on your label
match your order. The following electrical ratings and approvals are also listed on the label. Please refer to

the Certicate of Compliance and Declaration of Conformity at the back of this manual for further details.

Electrical ratings

Input: 12 to 28 Volts DC, 80mA max; Outputs: 4-20mA, NPN

Class I Division 2; Groups C, D T6
Class I, Zone 2, Group IIB
AEx nA IIB T6: Ta: -30°C to 60°C; IP65
Ex nA IIB T6: Ta: -30°C to 60°C; IP65

IRU models: IRU-2423, IRU-2425, IRU-3433, IRU-3435, IRU-5413, IRU-5415, IRU-5423, IRU-5425.
Models listed are rated for Pollution Degree 2, Installation Category II.

Input: 12 to 28 Volts DC, 80 mA max; Outputs: 4-20mA, solid state relay, NPN

Listed for General Purpose

Ta: -30°C to 60°C;

IRU models: IRU-2002, IRU-2003, IRU-2005, IRU-2423, IRU-2425, IRU-3433, IRU-3435, IRU-5413,
IRU-5415, IRU-5423, IRU-5425, IRU-5429, IRU-6429, IRU-9423, IRU-9425, IRU-9429
Models listed are rated for Pollution Degree 2, Installation Category II.

 IMPORTANT: Your IRU must be listed above and installed as shown on drawing

9003066 to meet listed approvals. Faulty installation will invalidate all safety approvals
and ratings.

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iii

Warranty and Warranty Restrictions

This product is covered by APG’s warranty 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

https://www.apgsensors.com/about-us/terms-conditions. Contact Technical Support to receive a Return

Material Authorization before shipping your product back.

Scan the QR code below to read the full explanation of our Warranty on your tablet or smartphone.

iv

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Chapter 1: Specications and Options

• Dimensions

3.25”

82.55mm

2.60”

66.04mm

3.10”

78.74mm

3/4” ø NPT

Threads

3.25”

82.55mm

1.63”

41.40mm

183.13mm

5.08”

129.03mm

IRU-200x

7.21”

2.50”

63.50mm

Liquid Tight

Strain Relief

3” ø NPT

Threads

3/4” ø NPT

Threads

7.76”

197.10mm

2.27”

57.66mm

2” ø NPT

Threads

3.05”

77.47mm

1.47”

37.34mm

1.98”

50.29mm

3.00”

76.20mm

IRU-242x & IRU-642x IRU-343x

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5.63”

143.00mm

2.80”

71.12mm

1

3/4” ø NPT

Threads

1” ø NPT

Threads

6.10”

154.94mm

3.97”

100.84mm

2.73”

63.34mm

0.68”

17.27mm

IRU-541x

5.74”

3/4” ø NPT

2” ø NPT

Threads

Threads

3.05”

77.47mm

145.80mm

3.61”

91.69mm

IRU-542x & IRU-942x

2

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• Specications

IRU-200X and 242X

Performance

Operating Range 1 - 25 ft. (0.3 - 7.6 m) on liquids and hard, at surfaces
1 - 10 ft. (0.3 - 3 m) on bulk solids
Analog Output 1 Solid State Relay, Isolated 4-20 mA, 4-20 mA,
4-20 mA with 2 NPN Trip Points, 0-2.5 VDC / 0-5 VDC
Digital Output RS-485 with 1 NPN Trip Point, RS-232 option
Display Output For interface with APG digital display (IRU-2002,
IRU-2003 only)
Beam Pattern 9° o axis
Transducer Frequency 69 kHz
Response Time Programmable, 55 ms min @ 25 ft. (or 18 Hz max)

Accuracy

Accuracy ±0.25% of detected range

Resolution 0.1 inch (2.54 mm)

Environmental

Operating Temperature -40 to 60°C (-40 to 140°F)

Internal Temperature Compensation Yes

Enclosure Protection IP65 (IRU-242X)
NEMA rating 4X (IRU-2000X only)
CSA Certications See page iii (IRU-242X only)

Electrical

Opperational Supply Voltage (at sensor) 12-28 VDC
Excitation Supply Voltage 5 VDC min. (0-2.5 / 0-5 VDC output only)
Programming Supply Voltage 15-28 VDC (12-28 VDC via RS-232)
Current Draw 80 mA max @ 24 VDC and 4 Hz (IRU-200X)
75 mA max @ 24 VDC and 4 Hz (IRU-242X)
Current Output 300 mA max (NPN Trip Points)
130 mA max (SSR, 120 VDC or VAC)

Materials of Construction

Transducer Housing ABS with UV inhibitor (IRU-200X)
PVDF (Kynar®) (IRU-242X)
Upper Housing PC/PET (IRU-242X)
Transducer Type ABS (IRU-200X)
Ceramic, PVDF faced (IRU-242X)

Mounting

IRU-200X Surface Mount with Four Screws
IRU-242X 2” Ø NPT (front), 3/4” Ø NPT (rear)

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3

IRU-343X

Performance

Operating Range 1.25 - 50 ft. (0.4 - 15.2 m)
Analog Output 4-20 mA
4-20 mA with 2 NPN Trip Points
Digital Output N/A
Beam Pattern 9° o axis
Transducer Frequency 43 kHz
Response Time Programmable, 100 ms min @ 50 ft. (or 10 Hz max)

Accuracy

Accuracy ±0.25% of detected range

Resolution 0.1 inch (2.54 mm)

Environmental

Operating Temperature -40 to 60°C (-40 to 140°F)

Internal Temperature Compensation Yes

Enclosure Protection IP65
CSA Certications See page iii

Electrical

Opperational Supply Voltage (at sensor) 12-28 VDC
Programming Supply Voltage 15-28 VDC
Current Draw 75 mA max @ 24 VDC and 4 Hz

Materials of Construction

Transducer Housing PC/PET
Upper Housing PC/PET
Transducer Type Ceramic, PVDF faced

Mounting

IRU-343X 3” Ø NPT (front), 3/4” Ø NPT (rear)

4

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IRU-54XX

Performance

Operating Range 0.33 - 6.58 ft. (0.1 - 2.7 m)
Analog Output 4-20 mA
4-20 mA with 2 NPN Trip Points
0-2.5 VDC / 0-5 VDC
Digital Output N/A
Beam Pattern 9° o axis
Transducer Frequency 143 kHz
Response Time Programmable, 22 ms min @ 6.58 ft. (or 45 Hz max)

Accuracy

Accuracy ±0.25% of detected range

Resolution 0.1 inch (2.54 mm)

Environmental

Operating Temperature -40 to 60°C (-40 to 140°F)

Internal Temperature Compensation Yes

Enclosure Protection IP65
CSA Certications See page iii (IRU-54XX only)

Electrical

Opperational Supply Voltage (at sensor) 12-28 VDC
Excitation Supply Voltage 5 VDC min. (0-2.5 / 0-5 VDC output only)
Programming Supply Voltage 15-28 VDC
Current Draw 75 mA max @ 24 VDC and 4 Hz
Current Output 300 mA max (NPN Trip Points)

Materials of Construction

Transducer Housing PC/PET
Upper Housing PC/PET
Transducer Type Ceramic, PVDF faced

Mounting

IRU-541X 1” Ø NPT (front), 3/4” Ø NPT (rear)
IRU-542X 2” Ø NPT (front), 3/4” Ø NPT (rear)

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5

IRU-642X

Performance

Operating Range 1.0 - 30.0 ft. (0.3 - 9.1 m)
Analog Output 0-2.5 VDC / 0-5 VDC
Digital Output RS-232 option
Beam Pattern 9° o axis
Transducer Frequency 69 kHz
Response Time Programmable, 64 ms min @ 30 ft. (or 15 Hz max)

Accuracy

Accuracy ±0.25% of detected range

Resolution 0.1 inch (2.54 mm)

Environmental

Operating Temperature -40 to 60°C (-40 to 140°F)

Internal Temperature Compensation Yes

Enclosure Protection IP65

Electrical

Opperational Supply Voltage (at sensor) 12-28 VDC
Excitation Supply Voltage 5 VDC min.
Programming Supply Voltage 15-28 VDC
12-28 VDC (via RS-232)
Current Draw 75 mA @ 24 VDC and 4 Hz
Serial Communications RS-232 (IRU-6429S only)
9600 baud, 8 bit, 1 stop bit, No parity

Materials of Construction

Transducer Housing PVDF (Kynar®)
Upper Housing PC/PET
Transducer Type Ceramic, PVDF faced

Mounting

IRU-642X 2” Ø NPT (front), 3/4” Ø NPT (rear)

6

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IRU-942X

Performance

Operating Range 0.5 - 35 ft. (0.2 - 10.7 m)
Analog Output 4-20 mA
4-20 mA with 2 NPN Trip Points
0-2.5 VDC / 0-5 VDC
Digital Output RS-232 option (with 0-2.5 / 0-5 VDC only)
Beam Pattern 9° o axis
Transducer Frequency 50 kHz
Response Time Programmable, 73 ms min @ 35 ft. (or 13 Hz max)

Accuracy

Accuracy ±0.25% of detected range

Resolution 0.1 inch (2.54 mm)

Environmental

Operating Temperature -40 to 60°C (-40 to 140°F)

Internal Temperature Compensation Yes

NEMA rating 12

Electrical

Opperational Supply Voltage (at sensor) 12-28 VDC
Excitation Supply Voltage 5 VDC min. (0-2.5 / 0-5 VDC output only)
Programming Supply Voltage 15-28 VDC
12-28 VDC (via RS-232)
Current Draw 75 mA max @ 24 VDC and 4 Hz
Serial Communications RS-232 (IRU-9429S only)
9600 baud, 8 bit, 1 stop bit, No parity

Materials of Construction

Transducer Housing PC/PET
Upper Housing PC/PET

Transducer Type Electrostatic

Mounting

IRU-942X 2” Ø NPT (front), 3/4” Ø NPT (rear)

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7

• Electrical Connectors and Pinout Tables

IRU-2002 IRU-2003

+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

3/C Cable IRU-XXX3-C

Red +24 VDC

Black DC Ground

White 4-20 mA Out

8/C Cable IRU-XXX9S-C

Red +24 VDC

Black DC Ground

Orange Excitation

White Voltage Out

4-pin MC IRU-XXX3-M

1 Brown +24 VDC

2 White Not used

3 Blue DC Ground

12

3

4

Green Analog Ground

Brown RS-232 Ground

Yellow RS-232 TX

Blue RS-232 RX

4 Black 4-20 mA Out

8-pin MC IRU-XXX9S-M

1 White Voltage Out

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 (A) NPN 1

Orange T(-) or (B) 4-20 mA 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

1

6

7

8

5

2

3

4

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

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 (A) NPN 1 NPN 1 Voltage Out

3 Blue DC Ground DC Ground DC Ground DC Ground

12

3

4

5

4 Black T(-) or (B) 4-20 mA Out 4-20 mA Out Analog Ground

5 Grey NPN trip NPN 2 NPN 2 Excitation

8

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• Model Number Congurator

The IRU sensor series oers a wide range of housing, outputs, and performance specications. Please refer
to each sensor family’s datasheet for a full list of available congurations. Datasheets can be found at http://

apgsensors.com/support.

Model Range Frequency Mounting Output

2002 1-25 ft / 0.3-7.6 m 69kHz Surface/Screws (1) Solid-State Relay

2003 1-25 ft / 0.3-7.6 m 69 kHz Surface/Screws Isolated 4-20mA

2004 1-25 ft / 0.3-7.6 m 69 kHz Surface/Screws RS-485, 1 NPN Trip

2005 1-25 ft / 0.3-7.6 m 69 kHz Surface/Screws 4-20mA, 2 NPN Trip

2009S 1-25 ft / 0.3-7.6 m 69 kHz Surface/Screws 0-2.5/0-5 VDC, RS-232

2423 1-25 ft / 0.3-7.6 m 69 kHz 2” NPT Threads 4-20mA

2425 1-25 ft / 0.3-7.6 m 69 kHz 2” NPT Threads 4-20mA, 2 NPN Trip

3433 1.25-50 ft / 0.4-15.2 m 43 kHz 3” NPT Threads 4-20mA

3435 1.25-50 ft / 0.4-15.2 m 43 kHz 3” NPT Threads 4-20mA, 2 NPN Trip

5413 0.33-6.56 ft / 0.1-2.7 m 143 kHz 1” NPT Threads 4-20mA

5415 0.33-6.56 ft / 0.1-2.7 m 143 kHz 1” NPT Threads 4-20mA, 2 NPN Trip

5419 0.33-6.56 ft / 0.1-2.7 m 143 kHz 1” NPT Threads 0-2.5/0-5 VDC

5423 0.33-6.56 ft / 0.1-2.7 m 143 kHz 2” NPT Threads 4-20mA

5425 0.33-6.56 ft / 0.1-2.7 m 143 kHz 2” NPT Threads 4-20mA, 2 NPN Trip

5429 0.33-6.56 ft / 0.1-2.7 m 143 kHz 2” NPT Threads 0-2.5/0-5 VDC

6429 1-30 ft / 0.3-9.1 m 69 kHz 2” NPT Threads 0-2.5/0-5 VDC

6429S 1-30 ft / 0.3-9.1 m 69 kHz 2” NPT Threads 0-2.5/0-5 VDC, RS-232

9423 0.5-35 ft / 0.2-10.7 m 50 kHz 2” NPT Threads 4-20mA

9425 0.5-35 ft / 0.2-10.7 m 50 kHz 2” NPT Threads 4-20mA, 2 NPN Trip

9429 0.5-35 ft / 0.2-10.7 m 50 kHz 2” NPT Threads 0-2.5/0-5 VDC

9429S 0.5-35 ft / 0.2-10.7 m 50 kHz 2” NPT Threads 0-2.5/0-5 VDC, RS-232

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9

• Wiring Diagrams

IRU-2003 Isolated 4-20 mA Source Wiring

IRU-2003

+24 VDC

DC Ground

Clock Sync

Digital Display Output

4-20mA Circuit Power (+24 VDC)

4-20mA Output

VDC Source

+24 VDC

DC Ground

4-20mA Receiver

+24 VDC

4-20mA Input

Figure 1.1 - Isolated VDC Source Wiring

IRU-2003

+24 VDC

DC Ground

Clock Sync

Digital Display Output

4-20mA Circuit Power (+24 VDC)

4-20mA Output

VDC Source

+24 VDC

DC Ground

4-20mA Receiver

Signal Ground

4-20mA Input

IRU-2003

+24 VDC

DC Ground

Clock Sync

Digital Display Output

4-20mA Circuit Power (+24 VDC)

4-20mA Output

VDC Source / 4-20mA Receiver

+24 VDC

DC Ground

4-20mA Input

Figure 1.2 - Single VDC Source Wiring

The IRU-2003 is equipped with an isolated 4-20 mA output. This means that the 4-20 mA circuit can be
powered by the 4-20 mA signal receiver or a source independant of the receiver. An isolated source must
be wired correctly to prevent potential ground loops that can exist in instances where the IRU and receiver
are not sharing the same power source (See Figure 1.1). The 4-20 mA circuit can also be wired as a standard
current sourcing 4-20 mA loop simply by powering the circuit from the same power source used by the main
IRU sensor circuit (See Figure 1.2).

10

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RST-3001/2 Programming Module Wiring

All IRU sensors (excluding the IRU-6429S and IRU-9429S) are fully programmable using an RST-3002
programming module, which acts as an interface between the sensor and a personal computer. The RST­3002 is both 32- and 64-bit Windows compatible.

Sensor

DC Ground

Sensor

+24 VDC

SENSOR 24 VDC

_

Power Supply

+

Figure 1.3

RST-3002

24 VDC

To Computer
USB Port

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 1.3). 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.

 NOTE: The utility software can be downloaded at www.apgsensons.com/support.

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11

VDC Source

Excitation Wiring for IRU-XXX9 Sensors

IRU-XXX9

+24 VDC

DC Ground

(Other connections

vary by model)

Excitation (+5 VDC)

0-2.5 / 0-5 VDC Output

Analog Ground

Figure 1.4

0-2.5 / 0-5 VDC IRU sensors include an +5 VDC Excitation input. (See Figure 1.4) If voltage is not applied at
the Excitation input, the sensor will not communicate for programming, nor will it provide the 0-2.5 / 0-5
VDC output.
In essence, this allows for a small VDC supply, such as +5 VDC from a datalogger, to “wake” the sensor for
output recording, and subsequently put the sensor back to “sleep.”

+24 VDC

DC Ground

Analog Receiver / Datalogger

+5 VDC

0-2.5 / 0-5 VDC Input

Analog Ground

IRU-200X Clock Synchronization Wiring

VDC Source

+24 VDC

DC Ground

+24 VDC

DC Ground

Clock Sync

Outputs (vary)

IRU-200X IRU-200X IRU-200X

Outputs (vary)

IRU-2002, IRU-2003, IRU-2004-C, and IRU-2005-C sensors are equiped with a clock synchronization to
prevent cross-talk between sensors located in close proximity. When the clock sync terminals of two or
more sensors are connected (See Figure 1.5), the output signals will synchronize. The sensors must share a

common ground in order for the clock synchronization feature to function.

+24 VDC

DC Ground

Clock Sync

Figure 1.5

DC Ground

Clock Sync

Outputs (vary)

+24 VDC

12

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Chapter 2: Installation and Removal Procedures and Notes

• Tools Needed

Tools are necessary only for the screws used to install the surface mount IRU-200X, and to access the termi­nal strips inside IRU-2002 and IRU-2003 sensors. All other models can be mounted via NPT threads on the

sensors.
If you are using a stand pipe to mount your IRU, you will probably need tools to install the stand pipe.

NOTE: Terminal strips for IRU-2002 and IRU-2003 sensors are internal to the sensor



and must be connected before sensors are mounted.

IRU-2003

[phone]

+24V

GND

CLK

DIG

4-20 (+)

4-20 (-)

Logan, UT 84321

[phone]

Sensitivity

IRU-2002

+24V

GND

Trip Distance

CLK

DIG

RLY

RLY

Logan, UT 84321

Sensitivity

Figure 2.1 Figure 2.2

Potentiometers for setting or adjusting Trip Distance (IRU-2002 only) and Sensitivity (IRU-2002 and IRU-2003)
are located inside the sensor housing along with terminal strips (See Figures 2.1 and 2.2). Both settings can
also be controlled via the I2000SWR software (See Figure 3.3).

• Installation Notes

• Mount your IRU sensor so that it has a clear, perpendicular sound path to the surface being monitored.

Your sensor should be mounted away from tank or vessel walls and inlets. (See Figure 2.3)

• The sound path should be free from obstructions and as open as possible for the 9° o axis beam

pattern.

• If you are using a stand pipe, please see our guide to stand pipes on our website:

http://www.apgsensors.com/about-us/blog/how-to-install-a-stand-pipe.

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13

Figure 2.3

 NOTE: Do not mount the sensor where the beam will intersect objects such as ll

streams, pipes, ladder rungs, wall seams, or corrugated tank walls.

• Mounting Instructions

Mounting your IRU is easy if you follow a few simple steps:

• For IRU-200X sensors, use the necessary screws or bolts (not provided by APG) to mount the sensor.

For all other IRU models:

• Never over-tighten the sensor.

• Always screw in your sensor by hand to avoid cross-threading. Thread failure can be a problem if you

damage threads by over-tightening them or by crossing threads.

 IMPORTANT: Do not over tighten! The sensor should be threaded in only hand tight.

14

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• Electrical Installation

• Check the pinout table on your IRU against your order

• Check that your electrical & control system wiring matches the pinout table on your IRU.

• For sensors with connectors, make the connection. For instruments with pigtails, run the cable to a

junction box in a suitable location to connect to your system.

• For IRU-2002 and IRU-2003 sensors, sytem wiring must be connected to internal terminal strups prior
to physical installation. (See Figures 2.1 and 2.2)

 NOTE: Please see wiring diagrams in Chapter 1 for RST Module Programming Wiring

and other special wiring congurations.

• Software Installation

• Download the RST-3002 software ziple from http://apgsensors.com/support.

• Open the zip le.

• Choose “Install” from the options at the top of the zip le window.

• The installation process will prompt you as needed to complete the installation.

• The software will create I2000SWR.exe which will run from a folder in your start menu titled “APG/

I2000SWR”.

IMPORTANT: RST-3002 is compatible with computers running 32- and 64-bit Windows



systems.

• Removal Instructions

• Ensure that power to the sensor is o

• Disconnect cable to sensor.

• Remove the sensor and store it in a dry place, at a temperature between -40° F and 180° F.

• If the sensor was installed in a hazardous location, ensure that the cable will not energize while the

sensor is disconnected.

 DANGER: Do not disconnect equipment installed in hazardous locations unless power

has been switched o or area is known to be non-hazardous.

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15

Chapter 3: Set Up and Operation

• User Interface

IRU sensors use one of two methods for user interface: RS-232 serial communications (IRU-6429S and IRU­9429S) or I2000SWR, the Windows-based utility software (all other models).

RS-232 Serial Communication

Sensors with the built-in RS-232 communications will accept one ASCII command (SEND), and return
distance and temperature values in ASCII. When the sensor receives the SEND command (all capital letters),

the sensor will transmit the distance in feet, followed by a comma, and then the temperature in degrees

Celsius, followed by a carriage return and line feed. The distance will be ve characters (e.g. 05.25) and the
temperature will have a + or - followed by one or two characters (e.g. +22).

 IMPORTANT: The sensor will return ASCII characters, not numeric values.

 NOTE: If your sensor is turned o between readings, you must allow time for the sen-

sor to initialize and process readings through ltering parameters before polling for out­put readings with a SEND command. Depending your lter settings, this can take between

3 and 30 seconds, or longer.

16

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Windows-based Utility Software: I2000SWR

I2000SWR software user interface is one screen with three primary areas (See Figure 3.1). The primary

portion of the screen is two columns of Sensor Parameters. The Sensor Readings and Communication

Status area is below the Sensor Parameters, in two uneven columns. Finally, the Control Buttons area is

located across the bottom of the screen.

Only the elds in the Sensor Parameters are editable by the user. All of the elds in the Sensor Readings and

Communication Status area are display only.

Figure 3.1

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17

The top and middle Communication Status boxes in the right column show the status of communication
between the I2000SWR software and the RST-3002, and between the I2000SWR software and the sensor
(See Figure 3.2).

Figure 3.2

When the I2000SWR software is started it will attempt to establish communications with your IRU sensor

via the RST-3002 module. The Send button will grey-out and the Sensor Communication Status will display
“Receiving all data!!” During this initial communication, the software will determine the model number of
your sensor (IRU-XXXX), congure the available parameters accordingly, and load the current parameter

values from the sensor.

If the sensor model in the upper left-hand corner of the window does not change from the default (IRU-

2003), then a communication error has occured. Check all wiring to ensure proper connections have been
made (See Figure 1.3). Then close (Exit) the software and open it again.

Changes to parameters are written to the sensor by clicking on the Send button. During the writing
process, the Sensor Communication Status will display “Sending all data!!” The message will then change to

“Communication Error!!!” and the parameter elds will briey change to green. The elds will then blank to
white and the Sensor Communication Status will display “Receiving all data!!” At this point the parameter elds
will turn greyish-blue and be populated with the new values read from the sensor.

The “Communication Error!!!” message in this process is a result of the brief time needed for the sensor

to switch from receiving the new paramters to sending all the parameters back to the software. As long as

your changes are reected in the nal read of the sensor data, there has not been an actual communication

error.

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• IRU Sensor Parameters

PARAMETER RANGE

Units Feet

Inches
mm

Units is used to select the units of measurement for parameter display. The units will also determine the
resolution of the display and the outputs. The resolution is: feet 0.01, inches 0.1, and millimeters 1.
When a new unit of measure is selected, the software will automatically communicate with the sensor and
update appropriate paramters.

PARAMETER RANGE

Blanking Determined by sensor model

Blanking sets the blanking distance, which is the zone from the Zero Point of the sensor to the point from

which the rst echo will be accepted. While blanking distance can be used to ignore unwanted targets--such
as welds, seams, pipe ttings, or gaskets--between the sensor and the closest acceptable target level, such
objects generally create additional reections and echoes, which are hard to lter out. More often, blanking

distance is used for a sensor installed in a stand pipe.

Because of the physical properties of an ultrasonic sensor, objects cannot be detected closer than

approximately 1 foot from the face of most transducers (4 inches for IRU-5XXX, and 6 inches for IRU­942X). However, this distance varies according to how much energy is being transmitted (Pulses) and the

installation.

 IMPORTANT: Blanking is always measured from the Zero Point of the sensor. See Fig-

ures 3.4 - 3.6.

PARAMETER RANGE

Sensitivity 0 - 100%

Sensitivity sets the level of gain that is applied to the echo. When operating in AutoSense, Hard-Target, or
Soft-Target (see Gain Control), Sensitivity sets an upper limit for the amplication that can be applied to the

echo. If operating in Manual, this parameter sets the gain.

When using manual gain control, set Sensitivity to the minimum value that will allow the target to be reliably

tracked through the full range of expected environmental conditions.

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19

PARAMETER RANGE

Sens/Trip Control 0 = manual (potentiometer)
IRU-2002 , IRU-2003 only 1 = program (software)

For IRU-2002 sensors, Sensitivity/Trip Point Control is used to select between potentiometer or software
control of Sensitivity and Relay Trip Point. (See Figure 2.1)
For IRU-2003 sensors, Sensitivity/Trip Point Control is used to select between potentiometer or software
control of Sensitivity. (See Figure 2.2)

Figure 3.3

PARAMETER RANGE

Pulses 0-20

Pulses sets the maximum number of pulses the sensor can transmit when operating in AutoSense, Hard-
Target, or Soft-Target (see Gain Control), or sets the number of pulses when operating in Manual. The more

pulses that are sent in a burst, the stronger the returning echo.

When operating in Manual, increase the strength of the transmission by increasing Pulses for detecting soft
targets in damping environments. In acoustically active environments or small enclosed areas, decrease
Pulses to reduce multiple echoes.

PARAMETER RANGE

Gain Control 0 = Manual
1 = AutoSense

2 = Hard-Target
3 = Soft-Target

Gain Control selects the control mode for the sensor’s gain settings (Sensitivity and Pulses). In AutoSense,
the sensor automatically adjusts the sensitivity and pulses for the best quality return signal. Manual, Hard

Target, and Soft Target are user controlled scenarios. In Manual, the user is in full control of Sensitivity and
Pulses. For Hard and Soft Target, the user sets maximum Sensitivity and Pulses, but the overall gain is either

ramped up slowly (Hard Target) or quickly (Soft Target) by the sensor.

PARAMETER RANGE

Average 1-32

Average sets the number of qualied received signals to average for the displayed reading. Qualied

received signals are placed in a rst-in, rst-out buer, the contents of which are averaged for the displayed
output. The larger the number of qualied received signals being averaged, the smoother the output
reading will be, and the slower the reading will be to react to quickly changing targets.

20

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PARAMETER RANGE

Window Determined by sensor model

Window determines the physical range of qualied received signals, based on the current reading. Signals

beyond the +/- Window range of the current reading will not qualify unless the average moves. Signals
outside the extents of the Window are written to the Out of Range Samples buer.

PARAMETER RANGE

Out of Range Samples 0-250

Out of Range Samples sets the number of consecutive samples outside the Window necessary to
automatically adjust the current reading and move the Window.

PARAMETER RANGE

Sample Rate 1 Hz to sensor Maximum

Sample Rate is the number of samples taken by the sensor every second. While higher sample rates allow for

quicker sensor response times to changing levels, lower sample rates reduce the likelihood of echo-based

false positives. Also, lower sample rates result in longer sensor life.

PARAMETER RANGE

Multiplier 0 - 1.999

Multiplier is used to calibrate the sensor for variations in the speed of sound due to variations in

atmospheres. The default of 1.000 is used for most applications. See the Calibration section of Chapter 4.

Zero

Point

Offset = 0

Effective

Measurement Zone

Blanking

Sensor

Max.

Distance

Offset

Zero

Point

Offset > 0

Effective

Measurement Zone

Blanking

Sensor

Distance

Max.

Offset

Measurement Zone

Zero

Blanking

Point

Offset < 0

Effective

Max. minus

Sensor

Offset

Sensor
Max.
Distance

Figure 3.4 Figure 3.6Figure 3.5

PARAMETER RANGE

Oset  -10 ft - + 10ft

Oset is used to change the Zero Point of the sensor. This is not the zero output (4 mA, 0 V, etc.) point of

the sensor. The Zero Point of the sensor is the point from which the calculated distance is measured. When

the Oset is set to 0, the Zero Point of the sensor is at the face of the transducer (See Figure 3.4). A positive
setting will move the Zero Point forward, in front of the sensor face (See Figure 3.5). Setting the Oset to a
negative number will move the Zero Point backward, behind the sensor face (See Figure 3.6).

In all cases, Blanking is measured from the end of Oset, and the eective measurement zone of the sensor
begins at the forward end of Blanking. If Oset is more negative than Blanking is positive, the net dierence
will be a loss in sensor maximum range (See Figure 3.6).

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21

PARAMETER RANGE

Temp Comp. 0 = O
1 = On

Temperature Compensation activates or deactivates the IRU’s internal temperature compensation circuit. The

speed of sound changes with changes in temperature, therefore changes in temperature can aect distance
measurements. These eects can be minimized by activating temperature compensation.

 NOTE: If the internal temperature compensation is enabled and the sensor is ex-

posed to direct sun light, the radiant heat can warm the sensor housing above the

ambient temperature, which can aect the internal temperature sensor and cause

overcompensation.

PARAMETER RANGE

Max Distance Determined by sensor model

Maximum Distance sets the maximum acceptable signal range for the sensor, measured from the Zero Point.

Signals beyond the Maximum Distance are ignored. Under Loss of Echo conditions, the software distance
reading will display the Maximum Distance.

PARAMETER RANGE

View Noise Level 0 - 100
Read Only

View Noise Level displays the number of echoes being picked up by the sensor. The presence of more than

30 echoes often indicates a noise source (acoustical or electrical) that could hamper sensor operation.
Reducing the Sensitivity and Pulses may help cut down the inuence of noise.

PARAMETER RANGE

Set Noise Threshold 0 - 100

Set Noise Threshold sets an activation level for the sensor’s noise lter. When the noise level exceeds

the threshold, the lter activates a steady reading on the sensor until the noise level returns below the
threshold. If periodic, short-term noise sources are known to be operating near the sensor, this threshold
can be set to prevent false readings during noise-source activities.

22

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PARAMETER RANGE

4 MA Set Point 0 - Sensor Max Distance
Sensor Models with 4-20 mA output only

4 mA Set Point sets the distance at which the output is 4 mA. This distance is measured from the Zero Point.
See Figures 3.3 and 3.4.

PARAMETER RANGE

20 MA Set Point 0 - Sensor Max Distance
Sensor Models with 4-20 mA output only

20 mA Set Point sets the distance at which the output is 20 mA. This distance is measured from the Zero

Point. See Figures 3.7 and 3.8.

For Distance conguration (i.e., greater mA output for target surface further from sensor), set the 4 mA Set
Point to be less than the 20 mA Set Point. See Figure 3.7.
For Fill conguration (i.e., greater mA output for target surface closer to sensor), set the 4 mA Set Point to be
greater than the 20 mA Set Point. See Figure 3.7.

Zero

Point

4 ma

4mA

Setpoint

20 ma

20mA

Setpoint

Max.

Distance

Figure 3.7

Zero

Point

20 ma

20mA

Setpoint

4mA

Setpoint

4 ma

Distance

Max.

Figure 3.8

PARAMETER RANGE

0 VDC Set Point 0 - Sensor Max Distance
Sensor Models with 0-2.5 / 0-5 VDC output only

0 VDC Set Point sets the distance at which the output is 0 VDC. This is measured from the Zero Point. (See
Figures 3.9 and 3.10)

Zero

Point

0 VDC

0 VDC

Setpoint

2.5 / 5

2.5 / 5

Setpoint

VDC

Distance

Max.

Zero

Point

2.5 / 5
VDC

2.5 / 5

Setpoint

0 VDC

Setpoint

0 VDC

Distance

Max.

Figure 3.9

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Figure 3.10

23

PARAMETER RANGE

5 VDC Set Point 0 - Sensor Max Distance

2.5 VDC Set Point 0 - Sensor Max Distance

Sensor Models with 0-2.5 / 0-5 VDC output only

5 VDC Set Point and 2.5 VDC Set Point set the distance at which the output is high voltage (2.5 or 5 VDC). This
is measured from the Zero Point (See Figures 3.9 and 3.10). Use the Max Voltage parameter to select the high

voltage output.

For Distance conguration (i.e., greater VDC output for target surface further from sensor), set the 0 VDC Set
Point to be less than the 2.5/5 VDC Set Point. (See Figure 3.9)

For Fill conguration (i.e., greater VDC output for target surface closer to sensor), set the 0 VDC Set Point to
be greater than the 2.5/5 VDC Set Point. (See Figure 3.9)

PARAMETER RANGE

Max Voltage 0 - 2.5V
1 - 5V
Sensor Models with 0-2.5 / 0-5 VDC output only

Max Voltage selects the maximum DC voltage sourced on the analog output. (See Figure 3.10)

PARAMETER RANGE

5 Volt Calibrate 0 - 4096

2.5 Volt Calibrate Default: 4095

Sensor Models with 0-2.5 / 0-5 VDC output only

5 Volt Calibrate and 2.5 Volt Calibrate ne tune the maximum DC voltage sourced on the analog output.

PARAMETER RANGE

4 MA Calibrate 0 - 65534
Default: 8200
Sensor Models with 4-20 mA output only

4 mA Calibrate ne tunes the minimum current sourced on the analog output. (See Figure 3.8)

PARAMETER RANGE

20 MA Calibrate 0 - 65534
Default: 41000
Sensor Models with 4-20 mA output only

20 mA Calibrate ne tunes the maximum current sourced on the analog output. (See Figure 3.8)

24

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• Relay and NPN Trip Output Conguration

Along with, or instead of, an analog output, some IRU sensors have relay (IRU-2002) or NPN Trip (IRU-2004,
IRU-XXX5) outputs.The relay or NPN can be congured to turn on or o based on the measurement of the
sensor. (See Figure 3.11)

Figure 3.11

PARAMETER RANGE

Trip Distance 0 - Sensor Max Distance

Trip Distance sets the distance to the trip position closest

to the sensor face.

PARAMETER RANGE

Trip Window 0 - Sensor Max Distance

Trip Window sets the distance from the rst trip position

to the trip position farthest from the sensor face.

Trip Type

0 - Near

Near activates the output whenever the target surface is
closer than the Trip Distance setting.

Trip Type

1 - Exclusive

Exclusive activates the output whenever the target surface
is closer than the Trip Distance setting OR beyond the Trip
Distance + Trip Window setting.

TRIP TYPE 0
NEAR

TRIP TYPE 1
EXCLUSIVE

TRIP TYPE 2
HYSTERESIS
NEAR

TRIP TYPE 3
FAR

TRIP TYPE 4
INCLUSIVE

TRIP

DISTANCE

ON

ON

ON

OFF

OFF

TRIP

WINDOW

OFF

OFF

ON

OFF

ON

ON

ON

OFF

OFF

TRIP TYPE 5
HYSTERESIS
FAR

OFF

Figure 3.12

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OFF

ON

ON

25

Trip Type

2 - Hysteresis Near

Hysteresis Near activates the output whenever the target

surface moves closer than the Trip Distance setting. The
output remains activated until the target surface moves
beyond the Trip Distance + Trip Window setting. The

output remains o until the target surface moves closer

than the Trip Distance setting again.

Trip Type

3 - Far

Far activates the output whenever the target surface is
beyond the Trip Distance setting.

Trip Type

4 - Inclusive

Inclusive activates the output whenever the target surface
is beyond the Trip Distance setting AND closer the Trip
Distance + Trip Window setting.

Trip Type

5 - Hysteresis Far

Hysteresis Far activates the output whenever the target

surface moves beyond the Trip Distance + Trip Window
setting. The output remains activated until the target
surface moves closer than the Trip Distance setting. The

output remains o until the target surface moves beyond

the Trip Distance + Trip Window setting again.

TRIP TYPE 0
NEAR

TRIP TYPE 1
EXCLUSIVE

TRIP TYPE 2
HYSTERESIS
NEAR

TRIP TYPE 3
FAR

TRIP TYPE 4
INCLUSIVE

TRIP TYPE 5
HYSTERESIS
FAR

TRIP

DISTANCE

ON

ON

ON

OFF

OFF

OFF

Figure 3.12

TRIP

WINDOW

OFF

OFF

ON

OFF

ON

ON

OFF

ON

ON

OFF

OFF

ON

• Sensor Readings and Communication Status

Below the Sensor Parameters and Output Conguration is the Sensor Readings and Communication Status
area. On the left side are three sensor reading displays: Distance, Temperature, and Analog Output (current
or voltage). On the right side are three or four communication status displays: USB status, Trip 1, Trip 2, or
Relay Status (depending on sensor model), Sensor Communication Status, and Signal Strength Status. (See
Figure 3.13)

26

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Figure 3.13

Reading Type

Distance

Distance displays the current output of the sensor in the units selected in the Units parameter above.

Reading Type

Temperature

Temperature displays the current temperature of the thermal device in the IRU sensor body.

Reading Type Range

Analog Output Current (4-20 mA sensors)
Voltage (0-2.5 / 0-5 VDC sensors)

Analog Output displays the current analog output (all models except IRU-2002 and IRU-2004) of the sensor.

Communication Type Range

USB Status USB Not Found
USB Found

USB Status displays the status of the USB connection between the I2000SWR software and the RST-3002 as

detected when the software initiated.

Communication Type Range

Trip 1 Status On
Trip 2 Status O
Relay Status

Trip Status displays the status of the relay (IRU-2002), NPN Trip (IRU-2004), or NPN Trips (IRU-XXX5).

Communication Type Range

Sensor Com Status Receiving all data!!
Sending all data!!

Commmunication Error!!!

Sensor Communication Status displays the current status of communication between the I2000SWR and the

IRU sensor. Typically this box is blank. The three messages--”Receiving all data!!”, “Sending all data!!”, and
“Communication Error!!!”--only display while their respective events are happening.

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27

Communication Type Range

Signal Strength Status 0 - 7
Default

Signal Strength Status displays the strength of the signal being received by the sensor. 0 represents the
highest quality signal, and 7 represents the lowest quality. For some sensor models, the Signal Strength
Status may show “Default” if the sensor is not fully communicating with the I2000SWR software. Other

models only display “Default,” and never show the 0-7 range.

• Control Buttons

Below the Sensor Readings and Communication Status area are four Control Buttons. On the left side are
three sensor communication buttons: Send, Receive, and Reset. In the middle are a dropdown box and
check box for selecting the communication channels. On the right side is the Exit button. (See Figure 3.14)

Figure 3.14

Control Button

Send

Send sends all the user-entered values for sensor parameters to the sensor. After sending the parameters
to the sensor, the software will automatically poll the sensor to receive back all parameters. The Sensor
Communication Status display will show the progression of the writing and reading of sensor parameters.

Control Button

Receive

Receive polls the IRU sensor to read all the sensor parameters into the software. The Sensor Communication

Status display will show the progression of the reading of sensor parameters.

Control Button

Reset

Reset returns all sensor parameters to their factory settings. After reseting the parameters on the sensor,
the software will automatically poll the sensor to receive back all parameters The Sensor Communication
Status display will show the progression of the resetting and reading of the sensor parameters.

28

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Dropdown Box Range

Com Channel No Selection
1

Com Channel selects the computer’s communication port used for RS-232 serial communication between

the I2000SWR software and the IRU sensor. If you are using an RST-3002 via USB you do not need to use this
dropdown box.

Check Box

USB

The USB checkbox directs the I2000SWR software to use communicate with the IRU sensor via USB and

an RST module. If the box is unchecked, the software will use RS-232 via the selected com port in the Com
Channel dropdown box.

Control Button

Exit

Exit closes the I2000SWR software. Sensor parameters that have been successfully written to the sensor will

be stored in non-volatile memory on the IRU.

• Saving and Loading Parameter Files

In the File Menu are options for saving and loading parameters in text (.txt) les. Save Parameters will write
the current values for all parameters in the I2000SWR software to a .txt le. Load Parameters will load all the
parameters in a .txt le into the I2000SWR software. The parameters will not be written to the IRU until the
Send button is clicked. Similarly, to ensure that the current parameters in the IRU are written to a le, Receive
must be clicked before choosing File>Save Parameters.

Saving and loading parameters is especially helpful for setting up several identical sensors in identical

settings. Once the parameters for the rst sensor are congured appropriately, the parameters can be
saved in a .txt le and subsequently loaded into the remaining sensors.

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29

Chapter 4: Maintenance

• General Care

Your IRU ultrasonic sensor is very low maintenance and will need little care as long as it was installed

correctly. However, in general, you should:

• Avoid applications for which the sensor was not designed, such as extreme temperatures, contact with

incompatible corrosive chemicals, or other damaging environments.

• Inspect the threads whenever you remove the sensor from duty or change its location (for sensors with
NPT threads).

• Trouble Shooting

Should you have problems with your IRU, here are some troubleshooting steps.

• Check the Signal Strength Status (See Figure 3.9 on page 26 and explanation on page 27). If the signal
strength is low, alternately increase Pulses and Sensitivity (pages 18 and 19) until the signal strength
improves.

• Ensure Temperature Compensation (page 21) is turned on.

• Set Gain Control (page 19) to AutoSense.

• Ensure that Blanking (page 18 )is accurately set to account for any unwanted targets between the sen-

sor and the closest acceptable target.

• Ensure that the Noise Threshold is greater than the Noise Level (page 21).

• Ensure that the settings for Average and Window (pages 19 and 20) allow for anticipated target surface

movement without adversely eecting the output reading.

• Calibration

This procedure uses targets at known distances to calibrate the sensor’s accuracy. A wall or other large, at

object is recommended for the long range target.

• Point the sensor at a target at a known distance near the maximum range of the sensor (See Figure

4.1).

• Adjust the Multiplier until the distance reading on the sensor matches the actual measured distance to
the target.

• Point the sensor at a target near the minimum measurement range plus any Blanking distance (See
Figure 4.2).

• Adjust the Oset value until the distance reading on the sensor matches the actual measured distance
to the target.

• Repeat previous two steps until no further adjustment is required.

30

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measure

measure

Figure 4.1 Figure 4.2

 NOTE: The Reset button in the I2000SWR software will reset the IRU to factory default

settings (See Figure 3.14).

• Repair and Returns

Should your IRU ultrasonic sensor require service, please contact the factory via phone, email, or online
chat. We will issue you a Return Material Authorization (RMA) number with instructions.

• Phone: [phone]

• Email: [e-mail]

• Online chat at www.apgsensors.com

Please have your IRU sensor’s part number and serial number available. See Warranty and Warranty
Restrictions for more information.

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31

Chapter 5: Hazardous Location Drawing and Certication

• Hazardous Location Drawing

32

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• CSA Certicate of Compliance

Certificate of Compliance

Certificate:

Project:
Issued to: Automation Products Group Inc

1384697

2166699

1025 West 1700 North
Logan, UT 84321
USA
Attention: Karl Reid

The products listed below are eligible to bear the CSA

Mark shown with adjacent indicators 'C' and 'US' for

Canada and US or with adjacent indicator 'US' for

US only or without either indicator for Canada only.

Master Contract:

Date Issued:

Issued by:

Authorized
by:

237484

2010/02/19

Ron Wachowicz, C.E.T.

Gary Boswell, P.Eng., Product
Group Manager

PRODUCTS
CLASS 2252 03

CLASS 2252 83
CLASS 2258 02
CLASS 2258 82

CLASS 2252 03 – PROCESS CONTROL EQUIPMENT

DQD 507 Rev. 2009-09-01

- PROCESS CONTROL EQUIPMENT

- PROCESS CONTROL EQUIPMENT - Certified to US Standards

- PROCESS CONTROL EQUIPMENT - For Hazardous Locations

- PROCESS CONTROL EQUIPMENT - For Hazardous Locations ­Certified to US Standards

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33

Certificate:

1384697

Master Contract:

237484

Project:

2166699

Date Issued:

2010/02/19

CLASS 2252 83 – PROCESS CONTROL EQUIPMENT – To U.S. Requirements

IRU Series Ultrasonic Sensors, Models IRU-2002**, IRU-2003**, IRU-2005**, IRU-2122, IRU-2123,
IRU-2125, IRU-2423, IRU-2425, IRU-3133, IRU-3135, IRU-3433, IRU-3435, IRU-5113, IRU-5115,
IRU-5119, IRU-5413, IRU-5415, IRU-5423, IRU-5425, IRU-5429, IRU-6429, IRU-9423, IRU-9425 and
IRU-9429 input Rated 12 to 28Vdc, 80mA max; Outputs 4-20mA, solid state relay, NPN; Ambient temperature
range -30°C to +60°C.

** designates the color of the housings BK = black, RD = red, default = blue

DST Series Ultrasonic Sensor Models DST-2421, DST-3431, DST-5111 and DST-9421 input Rated 12 to
28Vdc, 60mA max; Ambient temperature range -30°C to +60°C.

NOTE: The above models are Pollution Degree 2, Installation Category II.

CLASS 2258 02 – PROCESS CONTROL EQUIPMENT – For Hazardous Locations
CLASS 2258 82 – PROCESS CONTROL EQUIPMENT – For Hazardous Locations – To U.S. Requirements

Class I, Division 2, Groups C and D, T6; Ex nA IIB T6 (Canada), IP65; Class I, Zone 2; AEx nA IIB, T6
(USA), IP65:

IRU Series Ultrasonic Sensors, Models IRU-2125, IRU-3135, IRU-2423, IRU-2425, IRU-3433, IRU-3435,
IRU-5413, IRU-5415, IRU-5423 and IRU-5425; input Rated 12 to 28Vdc, 80mA max; Outputs 4-20mA, NPN;
Ambient temperature range –30°C to +60°C.

NOTE: The above models are Pollution Degree 2, Installation Category II.

APPLICABLE REQUIREMENTS

C22.2 No 0 - M1991 - General Requirements - Canadian Electrical Code Part II.

C22.2 No 0.4 - M1982 - Bonding and Grounding of Electrical Equipment (Protective Grounding).

C22.2 No 213 - M1987 - Non-Incendive Electrical Equipment for Use in Class I, Division 2 Hazardous
Locations.

CAN/CSA-C22.2 No. 1010.1-92 - Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use, Part 1: General Requirements (Includes Amendment 1)

CAN/CSA-C22.2 No. 1010.1B 97 - Amendment 2 to CAN/CSA C22.2 No. 1010.1 92, "Safety Requirements
for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements"

T.I.L. No I -29 - Additional Requirements For Process Control Equipment Certified to CSA Standard CAN/CSA
C22.2 No 1010.1-92

34

DQD 507 Rev. 2009-09-01

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

Certificate:

1384697

Master Contract:

237484

Project:

2166699

Date Issued:

2010/02/19

ISA S82.01-1994 - Safety Standards for Electrical and Electronic Test, Measuring, Controlling, and Related
Equipment - General Requirements

CAN/CSA E60079-0:07 - Electrical apparatus for explosive gas atmospheres - Part 0 - General requirements.

CAN-CSA E60079-15:02 - Electrical Apparatus for Explosive Gas Atmospheres - Part 15-Type of Protection n.

UL 1604, Third Edition - Electrical Equipment for Use in Class I and II, Division 2, And Class III Hazardous
(Classified) Locations.

UL 60079-0, 4th Ed. - Electrical Apparatus for Explosive Gas Atmospheres - Part 0 - General Requirements.

UL 60079-15, 1st Ed. - Electrical Apparatus for Explosive Gas Atmospheres - Part 15 - Electrical Apparatus
with Type of Protection n.

DQD 507 Rev. 2009-09-01

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

35

APG

R

Tel: [phone] • Fax: [phone] • www.apgsensors.com • [e-mail]

Automation Products Group, Inc.