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22UTH-530X Datasheet(PDF) 3 Page - BELIMO AIRCONTROLS (USA), INC
BELIMO [BELIMO AIRCONTROLS (USA), INC]
22UTH-530X Datasheet(HTML) 3 Page - BELIMO AIRCONTROLS (USA), INC
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Technical data sheet
22UTH-530X • en-us • 2019-08-20 • Subject to change
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This device has been designed for use in stationary heating, ventilation and air-conditioning
systems and must not be used outside the specified field of application. Unauthorised
modifications are prohibited. The product must not be used in relation with any equipment
that in case of a failure may threaten humans, animals or assets.
Ensure all power is disconnected before installing. Do not connect to live/operating
Only authorised specialists may carry out installation. All applicable legal or institutional
installation regulations must be complied during installation.
The device contains electrical and electronic components and must not be disposed of as
household refuse. All locally valid regulations and requirements must be observed.
When using lengthy connection wires (depending on the cross section used) the measuring
result might be falsified due to a voltage drop at the common GND-wire (caused by the
voltage current and the line resistance). In this case, 2 GND-wires must be wired to the
sensor - one for supply voltage and one for the measuring current.
Sensing devices with a transducer should always be operated in the middle of the
measuring range to avoid deviations at the measuring end points. The ambient temperature
of the transducer electronics should be kept constant. The transducers must be operated at
a constant supply voltage (±0.2 V). When switching the supply voltage on/off, onsite power
surges must be avoided.
Temperature sensors with electronic components always have a dissipative power which
affects the temperature measurement of the ambient air. The dissipation in active
temperature sensors shows a linear increase with rising operating voltage. This dissipative
power should be taken into account when measuring temperature. As Belimo transducers
work with a variable operating voltage, only one operating voltage can be taken into
consideration, for reasons of production engineering. Transducers 0...10 V / 4...20 mA have
a standard setting at an operating voltage of DC 24 V. That means, that at this voltage, the
expected measuring error of the output signal will be the least. For other operating voltages,
the offset error will be increased by a changing power loss of the sensor electronics. If a re-
calibration should become necessary later directly on the sensor, this can be done by
means of a trimming potentiometer on the sensor board.
Refrain from touching the sensitive humidity sensor/element. Touching the sensitive surface
will void warranty.
For standard environmental conditions the manufacturing accuracy specified in the
datasheet will be covered by the calibration warranty for two years. When exposed to harsh
environmental conditions such as high ambient temperature and/or high levels of humidity,
or presence of aggressive gases (i.e. chlorine, ozone, ammonia) the sensor element may
be affected and readings may be outside specified accuracy. Replacement of deteriorated
humidity sensors due to harsh environmental conditions are not subject of the general
Scope of delivery
1/2" NPT conduit adapter
Replacement filter, wire mesh, Stainless steel
General Remarks Concerning Sensors
Build-up of Self-Heating by Electrical
Application Notice for Humidity Sensors
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