Rockwell Automation 1414-CTIxxxxx_ITIxxxxx Immersion Temperature Transmitter - Manual (Page 3)

Immersion Temperature Transmitter 3
Publication 1414-IN008A-EN-P - October 2005
Install the Immersion Temperature Transimitter
Immersion probes must be installed into a thermowell. Mount the thermowell
either horizontally or with the open end facing down to allow any condensation to
drain and ensure that the well does not contact the inside of the pipe. For best
results, use thermal compound
(1)
inside the well and a spring loaded probe.
Wire and Connect the Immersion Temperature Sensor
Connect the transmitter to the controller using twisted 18 to 22 AWG wire. The
transmitter requires two wires for DC 4 to 20 mA loop-powered operation. The use
of shielded cable is optional but recommended for the highest noise immunity. Do
not route signal wires in the same conduit with power cables as signal degradation
may occur. The controller Analog Input (AI) must be selected 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 to
70°C (32 to 158°F). The transmitter board should not be mounted where
temperatures exceed these vaules. See the connection diagram for more details.
Typical wiring to a programmable controller is shown in the diagram.
(1) Use thermal compound from MAMAC Systems, part number A-505.
Thermowell Installation Example
FLOW FLOW