SERIA M - Czujniki miniaturowe

Humidity/-temperature compact sensors with cable or plug-in connection

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.

Technical Data:

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 m

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

Working range humidity	Temperature accuracy of the sensors

Dimensions:

order designation cable with jack:

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

Wilgotność = dziesiętna wartość wilgotności * 0,5
Temperatura = (dziesiętna wartość temp.*0,125)-40
(dziesiętna wartość DW temp. = DW Bajt 1+ DW Bajt 2 *256)

Symbol Parameter min max   T-BUF idle period between BUS actions 4,7   µs I-D: SU data set-up time 250   ns 1-D:HD data hold time 50   ns 1-ST:HD start hold time 4   µs 1-ST:SU start set-up time 4,7   µs 1-SCL:L SCL „Iow“ time 4,7   µs T-SCL:H SCL „high“ time 4   µs ISCL SCL freąuency   100 kHz t r SD A, SCL LO W/HIGH time   1 µs t f SD A, SCL HIGH/LOW time   0,3 µs T-STO:SU stop set-up time 4   µs T-SP interference signal rejection   100 ns CL capacity SD A, SCL BUS (internal pull-up 120 kQ)   10 pF T-MUPD     150 ms T-SMPL     5 ms T-Hold blocking time after device access 200   ms