About the differential air-pressure transmitter – Rockwell Automation 1414-IPZxxxxx_CPZxxxxx_CPDxxxxx Differential Air Pressure Transmitter User Manual
Page 3
Differential Air-pressure Transmitter 3
Publication 1414-IN011B-EN-P - July 2010
About the Differential Air-pressure Transmitter
The transmitter can be used to measure positive, negative, or differential pressure in the range of
1.0…20.0 in. wc (water column). The piezoresistive sensor is ideal for monitoring the pressure for
air or other clean inert gas and is limited only to those media that will not attack polyetherimide,
silicon, fluorosilicone, silicone, EPDM, and neoprene seals.
The module features field-selectable pressure ranges and output signal types for the most flexible
application. Typical HVAC applications include monitoring of filter differential pressure or
clean room pressure. The output signal is factory calibrated and temperature compensated for
highest start-up accuracy and trouble-free operation.
The low-pressure room differential transmitter is designed to measure the pressure difference
from one room to another. This is done by mounting the main transmitter unit that is housed in
the ABS enclosure in one room and mounting the AE enclosure in the other. The ABS enclosure
has two ports, one on the side and one on the back. The side port is used to measure the pressure
in the room that it is mounted in while the back port is connected via a supplied tube to the port
that is on the back of the AE enclosure.
There is a second fitting on the back of the ABS enclosure that can be used as a wire entrance. An
electrical box can be used to mount the two enclosures to the wall or a hole can be made in the
wall to accommodate the fittings. Attach the supplied tube to the fittings on the back of the AE
and ABS enclosures.
TIP
The following is the factory setup for the tubing inside the ABS enclosure.
•
The LOW side of the sensor is connected to the AE to monitor the remote
room.
•
The HIGH side of the sensor is connected to the port on the side of the ABS
enclosure.
The tubes on the sensor can be reversed if required