Справочник Пользователя для EnOcean GmbH STM310C

USER MANUAL V0.60

STM 330 / STM 330C User Manual V0.60 | Page 21/27

STM 330 / STM 330C

3.2 Temperature sensor

STM 330 provides an internal temperature sensor. The sensor is part of the EO3000I IC and

measures the chip temperature. Therefore it is important to provide a good thermal con-

nection of the IC to the environment by ensuring sufficient circulation of air inside the

housing. Only then the measurement will represent the temperature of the environment.

Heating of the chip due to its current consumption is negligible as the chip only consumes

200nA while in sleep mode.

Temperature measurement every second is not recommended as in this case effects of

heating of the chip might become visible.

3.3 Set point control and occupancy button

In order to control the set point, an external potentiometer has to be connected as shown

below. In addition this figure shows how to connect the occupancy button.

STM 330

GND

10k

Set Point Occupancy