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TRH-MINI
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y TRH-MINI I HUMIDITY AND TEMPERATURE SENSOR Engineering manual 19/12 - Cod.: ISTR_M_TRH-MINI_E_00_--ASCON TECNOLOGIC S.r.l. Viale Indipendenza 56, 27029 - VIGEVANO (PV) ITALY TEL.: +39 0381 69871 - FAX: +39 0381 698730 http:\\www.ascontecnologic.com e-mail: info@ascontecnologic.com This manual contains the information necessary for the \\ installation of the product, we therefore recommend that the utmost attention is paid to the following instructions and to save it. This document is exclusive property of Ascon Tecnologic which forbids any reproduction and disclosure, even in part, of the document, unless expressly authorized. Ascon Tecnologic reserves the right to make any formal or functional changes at any moment and without any notice. Ascon Tecnologic and its legal representatives do not as-\\ sume 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. Whenever a failure or a malfunction of the device \\ may cause dangerous situations for persons, thing or animals, please remember that the plant must be equipped with additional electromechanical devices which will guarantee safety. KThe appliance (or the product) must be disposed of separately in compliance with the local standards in force on waste disposal. General description The Humidity and Temperature sensor adopt high quality digital sensors, with reliable performance, high precision, small year drift, fast response. It is suitable for temperature and humidity measurement of communication rooms, offices, workshops, warehouses, hospitals, HVAC, and building automation etc.. The Relative Humidity and the Temperature measurements can be read through the RS485 Modbus RTU communications port. The sensor can be mounted horizontally (on the ceiling) or vertically (on the wall) using 2 screws or a DIN rail. The connections are really easy: only 4 wires to complete the installation. Instrument description 2. GND Power supply ground terminal; Mounting requirements This instrument is intended for permanent installation, for indoor use only, in an electrical panel which encloses the rear housing, exposed terminals and wiring on the back. Select a mounting location having the following characteristics: 1. It should be easily accessible; 2. There is minimum vibrations and no impact; 3. There are no corrosive gases; 4. There are no water or other fluids (i.e. condensation). Ascon Tecnologic - TRH-MINI - ENGINEERING MANUAL - PAG. 1

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Electrical connections Carry out the electrical wiring by connecting only one wire to each terminal and according to the following diagrams: General notes about wiring 1. Do not run input wires together with power cables. 2. When a shielded cable is used, it should be connected at one point only. Power supply Serial Interface Note: When the sensor is external the temperature range is -40... +120°C Code system 8 bit binary, hexadecimal 0... F, each word (8 bit) contains 2 hexadecimal characters. Modbus RTU bits per byte in the protocol 1 Start bit; 8 Data bits (the less important bit must be...

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