C 4.8
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Galltec Mess- und Regeltechnik GmbH D-71145 Bondorf . Germany Tel. +49 (0)7457-9453-0 . Fax +49 (0)7457-3758 E-Mail: sensoren@galltec.de . Internet:www.galltec-mela.de MELA Sensortechnik GmbH D-07987 Mohlsdorf-Teichwolframsdorf . Germany Tel. +49(0)3661-62704-0 . Fax +49(0)3661-62704-20 E-mail:mela@melasensor.de . Internet: www.galltec-mela.de Product info sheet no. C 4.8 Humidity/-temperature sensors With „ATEX“ licence for locations with explosive gas atmosphere and for locations with inflammable dust for use in atmospheric conditions Technical data KC.Ex series GC.Ex series 0637 Description MELA-Humidity/-temperature sensors in these series are used to measure relative humidity or temperature or relative humidity and temperature in air and other non-aggressive gases in explosion hazardous arears and in locations with inflammable dust. The sensors comprise a sensor part with a sintered filter mounted on a robust aluminium die-cast housing (transmitter part), both made of stainless steel. Connection to a non-intrinsically safe electric circuit for humidity (F*C3.Ex/8) and for temperature sensors (T*C3. Ex/8) is achieved with a 1-channel transmitter power supply unit and for the combined humidity and temperature sensors(K*C3.Ex/8) either with a 2-channel or with two 1-channel transmitter power supply units with galvanic isolation between input-/output circuits and power supply. Model variants - product reference Measured variable F (relative humidity) K (rel. humidity / temp.) T (temperature) weight approx. -40°C ≤ Ta ≤ +80°C Approved for use in explosion hazardous areas : EC Design Test Certificate IBExU 07 ATEX 1114 This information is based on current knowledge and is intended to provide details of our products and their possible applications. It does not, therefore, act as a guarantee of specific properties of the products described or of their suitability for a particular application. It is our experience that the equipment may be used across a broad spectrum of applications under the most varied conditions and loads. We cannot appraise every individual case. Purchasers and/or users are responsible for checking the equipment for suitability for any particular application. Any existing industrial rights of protection must be observed. The perfect quality of our products is guaranteed under our General Conditions of Sale. Issue valid: from May 2022 C48_E. Subject to modifications, current version available at www.galltec.de. This issue supersedes all pr

Product info sheet no. C 4.8 page 2 Assembly instructions MELA-humidity/temperature sensors should be installed in a location which is representative for measuring the environmental conditions. Connection to a non-intrinsically safe power circuit is achieved by using either one or two transmitter power supply units (U0, I0, P0) according to the connection diagram. To verify the intrinsic safety in a simple, intrinsically safe electric circuit, the values of the intrinsically safe equipment (Ui, Ii, Pi, Ci and Li), of the corresponding electrical equipment (transmitter power supply U0, I0,...

Product info sheet no. C 4.8 page 3 Installing a humidity and temperature sensor with connection to zone 0 The MELA-humidity/temperature sensor is to be mounted in the wall of the hazardous area with class 1 requirements by using assembly kit ZA 40 and according to the dimension diagram showing connections to zone 0 on page 4, . This partition barrier must be made of corrosion-resistant material compatible with the application, must be homogenous and have a wall thickness of at least 3 mm, and must have a thread of M25x1,5. Otherwise additional protection measures are necessary in...

Product info sheet no. C 4.8 page 4 Dimension diagrams for connection to zone 0 Zone 1 Zone 1 partition barrier (requirement for category-1G electrical apparatus according to DIN EN 60079-26) (requirement for category-1G electrical apparatus according to DIN EN 60079-26) partition barrier (for duct mounting) clamping range Ø 11.5 ... 15.5 Assembly kit ZA 40 for connection to zone 0 (please order separately) "increased safety" type cable gland for sensor mounting in partition barrier seal insert, closed to close the opening in the partition barrier after removing the sensor Electrical...