Rockwell Automation 1414-ITXxxxxx User Manual

Installation Instructions

Duct Average-temperature
Transmitter

Catalog Numbers

1414-ITX03ACDAA, 1414-ITX02ACDAA, 1414-CTQ03AIEAA,

1414-CTX03PCDAA

Top ic Pa ge

About the Duct Average-temperature Transmitter 1
Important User Information 2
Mount the Duct Average-temperature Transmitter 3
Wire and Connect the Duct Average-temperature

Transmitter
Field Calibration 4
Specifications 5
Dimensions 6

3

About the Duct Average-temperature Transmitter

The multi-point duct average-temperature transmitter incorporates numerous precision RTD
sensors at equal distances. The transmitter is encapsulated in a soft copper probe for long lengths
or a stainless steel probe for shorter lengths. All probes provide excellent heat transfer, fast
response, and moisture-penetration resistance. The transmitter provides a high accuracy signal
with excellent long term stability, low hysteresis, and fast response.

2 Duct Average-temperature Transmitter

Important User Information

Solid-state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1
available from your local Rockwell Automation sales office or online at

http://www.rockwellautomation.com/literature/

equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide
variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an
explosion in a hazardous environment, which may lead to personal injury or death, property
damage, or economic loss.

) describes some important differences between solid-state

ATTENTION: Identifies information about practices or circumstances that can lead to personal
injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid
a hazard and recognize the consequences.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, drive or motor, to
alert people that dangerous voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, drive or motor, to
alert people that surfaces may reach dangerous temperatures.

IMPORTANT Identifies information that is critical for successful application and understanding of the

product.

Publication 1414-IN004B-EN-P - July 2010

Duct Average-temperature Transmitter 3

Mount the Duct Average-temperature Transmitter

Follow these steps to mount the transmitter.

1. Install the duct average sensors onto hangers in the duct using supplied clamps.

Located the sensors in a straight section of duct away from heating, cooling, or
humidifier elements.

The duct average sensor can be easily shaped to fit any duct size, but observe a minimum
bend radius of six inches to prevent damage to wires or sensors. Duct average elements
are not recommended for high humidity applications.

2. Mounted the duct average temperature transmitter enclosure to the outside of the duct,
where the sensor tubing exits the duct, by using sheet metal screws (not supplied).

Placement of a 12 ft Duct Average
Sensor in a 48 in. Square Duct

Use Hangers to Secure
Duct Average

Sensors

Note: 6" Bend
Radius

Wire and Connect the Duct Average-temperature Transmitter

Follow these steps to wire and connect the transmitter.

1. Connect the transmitter to the controller by using twisted 18…22 AWG wire.

The transmitter requires two wires for DC 4…20 mA loop-powered operation. The use
of shielded cable is optional, but recommended for the highest noise immunity.

IMPORTANT

2. Select the controller Analog Input (AI) to match the transmitter output before power is
applied.

The AI type must be a current input with 250 or 500 ohm impedance. All transmitters
have an operating range of 0…70 °C (32…158 °F). The transmitter board should not be
mounted where temperatures exceed these values. See the connection diagram for more
details.

Do not route signal wires in the same conduit with power cables as signal
degradation may occur.

Publication 1414-IN004B-EN-P - July 2010