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Pneumatic Control Manual 717.1
Temperature Section
Product Bulletin T-5220
Issue Date 0489
© 1989 Johnson Controls, Inc. 1
Part No. 24-4354-1, Rev. C
Code No. LIT-7171175
T-5220 High Volume Output
Pneumatic Temperature Transmitter
Features
• High output capacity
• Ball type control port for
increased accuracy
• Integral hypodermic needle
test point
• Two-pipe connection for
copper or plastic tubing
The T-5520 High Volume Output
Pneumatic Temperature
Transmitter is designed to
measure temperature in ducts,
pipes, tanks, or other areas
requiring remote temperature
measurement. This
measurement is converted to an
air pressure signal that is
transmitted to a pneumatic
receiver, controller, and/or
receiver-indicator. The T-5220
is designed for applications
which require a high output
capacity, a high degree of
accuracy, or a transmitter of
industrial quality. When used
with a Dewcel
®
(purchased
locally), the T-5220 can also be
used as a dew point transmitter.
Pneumatic feedback is
incorporated into the transmitter
design to assure an exact
proportional relationship
between the measured
temperature and the transmitted
signal.
Mounting
Vertical mounting is preferred;
any other mounting position
may cause a minor calibration
shift. The T-5220 should be
mounted on a rigid, flat surface
that is free from vibration. All
models except those with
5-1/2 in. (140 mm) capillaries
can be mounted using the
mounting ears provided and
two #8 sheet metal screws.
Transmitters with 5-1/2 in.
capillaries are supplied with an
angle bracket for mounting on
the hub of a duct flange or
separable well. The
T-5220 is secured to the flange
or well by tightening the spring
locknut furnished with the well
or flange.
Note: When inserting the bulb
into a well not furnished by
Johnson Controls, fill the well
one third full of thermal
conductive material
(F-1000-182, ordered
separately) and insert the bulb
until it hits the bottom of the
well.
Fig. 1: T-5220 High Volume
Output Temperature
Transmitter
Specifications