M-Series
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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 Humidity/-temperature compact sensors with cable or plug-in connection Miniature sensors / for assembly in non-visible areas These sensors are especially adapted to the requirements of measurement tasks which only have limited space available. They are suitable for measuring the relative humidity and temperature in air and other non-aggressive gases. Using the sensors for outdoor applications is not recommended. The sensors are based on our miniature sensors in the calHT series (product info B1.10). They are fitted with a filter and a 4-pin plug (MCK...4S0) or with a permanently connected 1.5 m long cable (MC(P)K...1Kn). Suitable cables for the model MCK...4S0 can be supplied in different lengths as an option. The sensors feature high long-term stability, small hysteresis and good dynamic performance. longer cables possible depending on the load or clock rate Compact sensors with tube extension direct connection plug or cable seal for increased requirements Series Design Physical output Output signal Special edition Operating voltage special lengths of cable in m other specialities of design Type of connection and characteristics of the design n: additional tube extension depending on sensor type and special design (n) = 0: no tube extension (n) = 1: total length sensor 53 mm (n) = 4: total length sensor 95 mm Special versions available on request. User instructions Install the sensors at a place in the room where characteristic levels of humidity occur. Avoid installing them close to heaters or windows or against outside walls. In general, the sensors are maintenance-free. If the PTFE filter is contaminated with dust, grease and oils, this can have a negative impact on the dynamic behaviour. In this case the sensor head of the plug version needs to be disconnected from the cable and to be cleaned by blowing or carefully rinsing off with distilled water. After removing the filter, make sure that the sensitive sensor surface is not touched, as this can lead to irreparable damage. An exact measured value can only be attained again after being completely dried; this also applies to condensation. Please consult „application instructions for the sensing elements“ (product info sheet no. A 1) for further information. 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: November 2016 M-Series_E

page 2 Working range of humidity and temperature Temperature accuracy of the sensors 80% Operating the sensor in these areas can damage it! recommended working range order designation cable with jack: MCK.02-xx.x length of cable in meter 60 Colour code for output range and characteristics of types MCK...4S0 colour code 0...100 black (without) additional: seal for increased requirements Configurations of cable versions Variable Pin configuration Pin configuration analogue digital conductor colour brown (brown) white (black) yellow (orange) 1) depending on sensor head selected (see table pa

Protocol for MC(P)K6.* (similar to I2C-output) Microcontroller sends command for read-out of one byte Microcontroller requests data byte according control command and reads out from sensor Symbol Parameter idle period between BUS actions data set-up time data hold time start hold time start set-up time stop set-up time interference signal rejection capacity SDA, SCL BUS (internal pull-up 120 kΩ) tSMPL blocking time after device access Read-Out Humidity Read-Out Temperature Byte 1 Read-Out Temperature Byte 2 Humidity Temperature = decimal value humidity * 0.5 = (decimal value temp.*...