Technical data sheet
22DT-54..
Duct / Immersion Temperature Sensor
Active sensor (4...20 mA) for measuring
temperature in duct applications. In
combination with a stainless steel or brass
thermowell can also be used for pipe
applications. IP65 / NEMA 4X rated
enclosure.
Type Overview
Output signal
Type
Probe length
Probe diameter
active temperature
22DT-54H
22DT-54L
22DT-54N
22DT-54P
22DT-54R
22DT-54T
4...20 mA
4...20 mA
4...20 mA
4...20 mA
4...20 mA
4...20 mA
2" [50 mm]
4" [100 mm]
6" [150 mm]
8" [200 mm]
12" [300 mm]
18" [450 mm]
0.24" [6 mm]
0.24" [6 mm]
0.24" [6 mm]
0.24" [6 mm]
0.24" [6 mm]
0.24" [6 mm]
Technical Data
Electrical Data Power supply DC
15...24 V, ±10%, 0.5 W
Electrical connection
Removable spring loaded terminal block max.
2.5 mm²
Cable entry
Cable gland with strain relief Ø6...8 mm (1/2"
NPT conduit adapter included)
Functional Data
Measuring Data
Multirange
8 measuring ranges selectable
Output signal active note
Application
current output: max. 500 Ω load
air
water
Measuring values
temperature
Measuring range temperature
Active sensor: range selectable
Attention: max. measuring temperature is
restricted by max. fluid temperature (see
Safety data)
Setting
range [°C]
range [°F] Factory
setting
S0
S1
S2
S3
S4
S5
S6
S7
-50...50°C
-10...120°C
0...50°C
-30...130°F
0...250°F
40...140°F
30...480°F
0...100°F
0...250°C
-15...35°C
0...100°C
-20...80°C
0...160°C
40...240°F
40...90°F
0...150°F
Accuracy temperature active
±0.9°F @ 70°F [±0.5°C @ 21°C]
Time constant t (63%) in the air duct
typical 46 s @ 3 m/s
typical 210 s @ 0 m/s
Time constant t (63%) in water pipe
typical 7 s with thermowell brass
typical 9 s with thermowell stainless steel
www.belimo.com
22DT-54.. • en-us • 2019-08-20 • Subject to change
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