Sencor SWS 240 W [3/7] Effect of the environment on signal reception

The device consists of the main unit with a radio controlled clock and one outdoor temperature measuring unit equipped with a temperature sensor The measured temperature is wirelessly transmitted to the main unit and displayed on its display It is possible connect only one temperature measuring unit The main unit is powered by a power adapter clock and alarm settings are backed up using a lithium battery the external temperature sensor is powered by two AAA batteries EFFECT OF THE ENVIRONMENT ON SIGNAL RECEPTION OF THE TIME STANDARD DCF 77 The clock is controlled by the received signals of the time standard These signals are affected but not limited by the following factors distance between the transmitter and the receiver vicinity of valleys or mountains vicinity of power poles and high voltage power lines vicinity of a highway railway airport etc vicinity of a large construction site reinforced concrete buildings etc vicinity of electrical appliances particularly televisions microwave ovens high performance loudspeakers etc devices vicinity of moving motor vehicles vicinity of metal structures and a range of other object factors and circumstances not indicated in this short overview Locate the main unit in a location where a strong signal of the time standard can be expected e g near a window as far away as possible from large metal buildings structures and electrical devices which are or under certain conditions may be the source of interference for the reception of the time standard signal FOR THOSE IN A HURRY 1 Slide the cover on the rear side of the device s case to open the battery compartment cover and place a CR2032 lithium battery into the battery compartment ensuring that the side of the battery designated with the plus symbol faces downwards Then slide the cover to perfectly close the battery compartment 2 Insert the power adapter into a power socket connect the power adapter cable plug into the DC jack on the rear side of the device Attach the stand to the bottom side of the device 3 Open the battery compartment cover on the rear side of the outdoor temperature sensor and prior to inserting batteries check that the switch in the battery compartment is in position 1 top position Then insert two AAA batteries must be purchased separately into the battery compartment When inserting the batteries into the sensor pay attention to their correct polarity it is marked inside the battery compartment Immediately thereafter data will be transmitted from the temperature sensor to the main unit For the purpose of performing the tasks described in this step it is appropriate for the main unit and the external temperature sensor to be located near to each other e g on a table 4 Remove the protective film from the front part of the unit the device is then ready for use 5 After the main unit receives all the data information about the temperature in the installation location of the external temperature sensor the main unit will start searching for the time standard signal transmitted by the DCF transmitter located in Germany Reception of the signal from the DCF transmitter is indicated on the display of the main unit by the appropriate icons The time standard signal is being received The icon is flashing After successful reception The icon is permanently lit Unsuccessful reception The icon is not displayed EN 2

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