Page 1
INTRODUCTION
The single point, all purpose duct/immersion temperature transmitter utilizes a precision
sensor that is encapsulated in 6 mm (0.236”) OD, 304 series stainless steel probe and is available
in various lengths. All probes provide excellent heat transfer, fast response, and resistance to
moisture penetration. A transmitter that provides a high accuracy signal with excellent long
term stability, low hysteresis, and fast response. It is available with various ranges. A compact
polycarbonate enclosure with a hinged and gasketed cover is provided for ease of installation.
BEFORE INSTALLATION
Read these instructions carefully before installing and commissioning the temperature
transmitter. Failure to follow these instructions may result in product damage. Do not
use in an explosive or hazardous environment, with combustible or flammable gases, as
a safety or emergency stop device or in any other application where failure of the product
could result in personal injury.
Do not exceed the device ratings
.
MOUNTING (DUCT)
The temperature transmitter installs directly into any air duct with several lengths
available for a wide range of duct widths/diameters. Select a suitable installation area in
the middle of the duct wall. To achieve the best reading, do not place in an area where
air stratification may be present. Mount the sensor at least 1.5 m (5 ‘) in either direction
from elbows, dampers, filters or other duct restrictions. Avoid areas where the sensor is
exposed to vibrations or rapid temperature changes.
Once a suitable spot is selected, drill a 9.5 - 12 mm (3/8” - 1/2“) hole for the probe.
Slide the probe in the drilled hole until the enclosure is flush against the duct. The airflow
direction is not important. Secure the enclosure to the duct with two #10 x 25 mm (1”)
self tapping screws (not provided). Tighten screws until the enclosure is tight against the
duct and there is no movement of the enclosure as shown in Figure 1.
A foam gasket on the back of the enclosure provides a tight seal against any air leaks.
MOUNTING (IMMERSION)
The temperature sensor must be installed into a thermowell.
Failure to use a
thermowell will create leaks and could damage the sensor. Install the thermowell as
recommended in Figure 2. For complete thermowell installation instructions, please
refer to installation instructions provided with the thermowell.
It is recommended to use heat conductive compound. Prior to installing the sensor
inject a liberal amount into the thermowell and/or on the tip of the sensor. Slide the
probe into the thermowell until it makes contact with the bottom of the thermowell.
Tighten set screw to secure probe in thermowell. See Figure 3.
The enclosure has a hinged cover with a latch. Open the cover by pulling slightly on
the latch on the right side of the enclosure, at the same time pulling on the cover, as
illustrated in Figure 4.
A 1/2" NPT threaded connection hole is provided in the bottom of the enclosure.
Screw the EMT connector or cable gland connector in until tight. See Figure 5. It is
recommended that weatherproof conduit or cable gland fittings be used. The F style
enclosure includes 1/2" NPT to M16 thread adapter and cable gland fitting.
Make wiring connections as per the “Wiring” illustrations on Page 2.
Swing door closed until securely latched. For added security, 2 screws are provided that
may be installed in the integrated screw tabs. See Figure 6.
Recommended thermowell placement
Figure 3
Figure 4
Figure 5
Figure 6
Figure 2
Figure 1
Set Screw
EMT Connector
Thread adapter and
cable gland fitting
IN-GE-TDAPXXX-01 07/20
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All Purpose Temperature
Transmitter with LCD
TDAP Series - Installation Instructions
