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Ascon Tecnologic - TRH52 - OPERATING INSTRUCTIONS - PAG. 1

TRH52

ACTIVE HUMIDITY AND 

TEMPERATURE PROBE WITH 

4... 20 mA OUTPUTS

OPERATING INSTRUCTIONS

Vr 01 (ENG) - 18/11 - cod.: ISTR-MTRH52ENG01

ASCON TECNOLOGIC S.r.l.

Viale Indipendenza 56, 27029 - VIGEVANO (PV) ITALY 
Tel.:  +39 0381 69871 - Fax: +39 0381 698730 

http:\\www.ascontecnologic.com

 

[email protected]

PREFACE

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This manual contains the information necessary for 
the product to be installed correctly and also instruc-
tions for its maintenance and use; we therefore recom-
mend that the utmost attention is paid to the following 
instructions and to save it.

This document is the exclusive property of Ascon Tecnologic 
S.r.l. which forbids any reproduction and divulgation, even 
partially, of the document, unless expressly authorized.
Ascon Tecnologic S.r.l. reserves the right to make any formal 
or functional changes at any moment and without  any notice.
Ascon Tecnologic S.r.l. and its legal representatives do not 
assume any responsibility for any damage to people, things 
or animals deriving from violation, wrong or improper use or 
in any case not in compliance with the instrument features.

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Whenever a failure or a malfunction of the device 
may cause dangerous situations for persons, thing 
or animals, please remember that the plant has to be 
equipped with additional electromechanical devices 
which will guarantee safety.

1.  INSTRUMENT DESCRIPTION

1.1 

General description

TRH52

 is a passive relative humidity (current loop) and an 

NTC temperature probe.  The output signals are normalized 
in current at 4... 20 mA (% RH) and NTC (temperature).

1.2 

Probe description

RH sensor and

Temperature sensor 

protective cap

Cable gland 

M20 x 1.5

Connection

terminals

(inside the box)

2.  USAGE WARNINGS

2.1 

Admitted use

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The device has been designed as a measuring 
transducer.

Electrical equipment should be installed, operated, serviced, 
and maintained only by qualified personnel.

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The installer must ensure that the EMC rules are 
respected, also after the instrument installation, if 
necessary using proper filters.

Index

1.  Instrument description ............................................... 1

1.1  General description ........................................................... 1
1.2  Probe description .............................................................. 1

2.  Usage warnings ........................................................... 1

2.1  Admitted use ..................................................................... 1

3.  Installation warnings ................................................... 2

3.1  Mechanical mounting ........................................................ 2
3.2  Dimensions [mm] .............................................................. 2

3.2.1  Mechanical dimensions ........................................................ 2
3.2.2  Dimensions of the mounting slotted holes ............................ 2
3.2.3  Mounting holes ..................................................................... 2

3.3  Electrical connections ....................................................... 2

3.3.1  Vdc power supply ................................................................. 2

4.  Operating mode ........................................................... 2

4.3.1  Values to be set on the controller ......................................... 2

5.  Problems and maintenance ........................................ 3

5.1  Measurements errors ........................................................ 3
5.2 Cleaning ............................................................................ 3
5.3 Disposal ............................................................................ 3

6. Warranty ....................................................................... 3
7.  Technical Data ............................................................. 3

7.1  Electrical characteristics ................................................... 3
7.2  Mechanical characteristics ................................................ 3
7.3  Functional features ........................................................... 4

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