Page 2 / 5
Issue Date: 16.11.2020
Thermokon Sensortechnik GmbH, Platanenweg 1, 35756 Mittenaar, Germany · tel: +49 2778 6960-0 fax: -400
SR-MDS_Datasheet_en-us.docx © 2020
»
NOTES ON DISPOSAL
As a component of a large-scale fixed installation, Thermokon products are intended to be used permanently as part of a building
or a structure at a pre-defined and dedicated location, hence the Waste Electrical and Electronic Act (WEEE) is not applicable.
However, most of the products may contain valuable materials that should be recycled and not disposed of as domestic waste.
Please note the relevant regulations for local disposal.
»
BUILD-UP OF SELF-HEATING BY ELECTRICAL DISSIPATIVE POWER
Temperature sensors with electronic components always have a dissipative power, which affects the temperature measurement of the ambient
air. The dissipation in active temperature sensors shows a linear increase with rising operating voltage. This dissipative power has to be considered
when measuring temperature. In case of a fixed operating voltage (±0,2 V) this is normally done by adding or reducing a constant offset value. As
Thermokon transducers work with a variable operating voltage, only one operating voltage can be taken into consideration, for reasons of
production engineering. Transducers 0..10 V / 4..20 mA have a standard setting at an operating voltage of 24 V =. That means, that at this voltage,
the expected measuring error of the output signal will be the least. For other operating voltages, the offset error will be increased by a changing
power loss of the sensor electronics.
»
GUIDELINES FOR DEVICES WITH SOLAR ENERGY STORAGE
Due to the energy-optimized EnOcean radio technology used in ”EasySens
®
“ wireless sensors, the devices can work without batteries and self-
charge themselves using electric energy generated by integrated solar cells. This makes the devices almost maintenance free and environmentally
sound due to not having to replace batteries.
For optimum use, the device should be mounted in a location with sufficient ambient brightness. Minimum illumination of 200 lx (artificial light or
ambient) is required for at least 3 to 4 hours each day. (The health and safety regulations at work require a minimum illumination of 500 lx for office
workplaces).
The solar cell should be mounted facing towards the window direction if possible. If the device has a temperature sensor, then even periodic direct
sun radiation should be avoided due to incorrect false temperature readings.
The mounting position should be selected so that the device will not be obstructed in the future: for example by placement areas, additional furniture
or roll-fronted cupboards.
The sensor is supplied in an operational state. If the sensor has been stored in darkness for longer periods, the internal solar energy storage will
most likely need to be recharged. This would normally happen automatically during commissioning or during initial start up in ambient light. If the
initial charge is not sufficient, the sensor will reach its full operating state up to 3 to 4 days, if the requirements for minimum illumination per day
are met. The sensor will then transmit continuously in darkness as specified f (2/3 days on factory default telegram timing). Depending on the
application it is also possible for the devices to operate in darker rooms (with brightness <100 lx) by using the battery back-up option. Batteries to
be used are listed in accessories.
The operating time when using batteries will depend on the transmission frequency as well as the component aging and the self-discharge of the
battery. Standard operating time will be 5-10 years on factory default telegram timing. Changing of the device from solar to battery operation is
done automatically by simply adding a battery to the device.
»
PRODUCT TESTING AND CERTIFICATION
Declaration of conformity
The declaration of conformity of the products can be found on our website https://www.thermokon.de/.
»
INFORMATION ABOUT EASYSENS® (RADIO) / AIRCONFIG GENERAL USAGE
EasySens® - airConfig
Basic information about EasySens
®
radio and about general usage of our airConfig software, please download
from our website.
»
OVERVIEW OF THE RADIO TELEGRAMS
EEP
The structure of the data contained in the telegram can be found in the EEP (EnOcean equipment profile) list
provided by the EnOcean Alliance.
