C 4.3
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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 4.3 - ball tap Humidity / temperature sensors Pressure resistant compact sensors in the stainless steel casing can be employed up to 25 bar or up to 10 bar with ball valve Description MELA®-humidity/-temperature sensors of the VRx.D series are compact humidity or humidity/temperature sensors in a high-grade steel housing, with a connecting head and screw-type clamping ring fitting. They are employable up to 25 bar by 3/8“ thread or series VRx.D..-KH employable up to 10 bar by means of ball valve. All the sensors in the series are equipped with a ZE 13-type sintered high-grade steel filter as standard. They have been specially developed for use in extreme conditions and are suited to measure relative humidity or relative humidity and temperature in air and other non-aggressive gases. Use of capacitive humidity sensor elements is a guarantee of: - high long-term stability - almost linear characteristic curve - good dynamic performance - resistance to dew formation - small hysteresis. measured variable Special versions available on request Humidity working range depending on temperature % rh 100% 80% 60% 40% recommended working range Operating the sensor in these areas can damage it! 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 : December 2017 C43_

Product info sheet no. C 4.3 page 2 User instructions Install the MELA®-humidity / temperature sensors at a place in the room, plant or equipment where characteristic levels of humidity occur. Avoid installing them close to heaters or windows or against outside walls. The specified minimum air speed and - with current output - the load according to the operating voltage (diagram) should be complied with. Deviations may lead to additional measuring faults resulting of the self-heating of the sensor (clocked operation will help to avoid this). The sensor can be installed in any position....

Product info no. C 4.3 page 3 Sensor presented in final position existing pipe system (DN ≥ 25) safety chain, complete (welded connection) welded hexagon nipple with AG 1/2 **) G 1/2"x10 shifting path to relax the tension of the chain L Length of safety chain = 195 (end setting) 323 Sensor presented in measuring position existing pipe system (DN ≥ 25) welded hexagon nipple with AG 1/2 **) Recommended length of the hexagon nipple 30 mm emersion length off the ball valve (measuring position) wall thickness of pipe setting length sensor tube Emeasuring position = 12 - s Recommended minimum...

Product info no. C 4.3 page 4 Connection diagram Humidity/-temperature sensors Pressure resistant compact sensors in a stainless steel casing series VR.D Humidity sensor Output: 0...1V (FVR1.D/5, FVR1.D/5-KH) Humidity sensor Output: 0...10V (FVR2.D/5, FVR2.D/5-KH) + Humidity sensor Output: 4...20mA (FVR3.D/5, FVR3.D/5-KH) The electrical connection must only be carried out by properly qualified personnel. Humidity/- temperature sensor Output: 0...1V, Pt100 (CVR1.D/5, CVR1.D/5-KH) + output humidity _ 0...1V T1 shield Humidity/- temperature sensor Output: 0...10V, Pt100 (CVR2.D/5, CVR2.D/5-KH)...

Product info no. C 4.3 page 5 Connection diagram Humidity/- temperature sensor Output: 2 x 0...1V (KVR1.D/5, KVR1.D/5-KH) _ Humidity/-temperature sensors Pressure resistant compact sensors in a stainless steel casing series VR.D Humidity/- temperature sensor Output: 2 x 0...10V (KVR2.D/5, KVR2.D/5-KH) Humidity/- temperature sensor Output: 2 x 4...20mA (KVR3.D/5, KVR3.D/5-KH) H+ H- Temperature sensor Output: 0...1V (TVR1.D/5, TVR1.D/5-KH) _ Temperature sensor Output: 0...10V (TVR2.D/5, TVR2.D/5-KH) _ The electrical connection must only be carried out by properly qualified personnel....