User manual TELEFUNKEN RUBY PDF 7322

[. . . ] 1 Package contents Please check that the package contents are complete. 1 When taking body temperature • To ensure an accurate reading, it is crucial that the sensor is angled towards the ear drum and inserted sufficiently deeply into the auditory canal. €¢ Some people produce different results in the left and right ear. In order to accurately measure changes in temperature, always take readings in the same ear with any given person. [. . . ] The LCD display now shows a thermometer symbol and the chosen unit of measurement. €œÂ°C” indicates that the results will be displayed in degrees Centigrade, while “°F” means that body temperature will be displayed in degrees Fahrenheit. The measuring range of the TELEFUNKEN FTO infra-red thermometer is from 0 °C to 100 °C (32 °F to 212 °F), displayed in steps of 0, 1 °C or 0, 1 °F. 2 Taking a body temperature reading Tilt the patient’s head slightly in the opposite direction and support the head (especially in the case of children). Pull on the ear slightly in order to straighten the auditory canal. Carefully insert the sensor into the auditory canal. If you are taking your own temperature, use one hand to pull on the ear and the other to operate the thermometer. 16 2 Operation Once the sensor is correctly positioned in the auditory canal, use your index finger to press the START button  on the back of the unit. When the reading is successfully completed, you will hear a short tone and can remove the unit from the ear. The display will immediately show the temperature measured and automatically store the result. In the case of a raised body temperature (above 37, 5 °C / 99, 5 °F) you will hear 10 short tones after the reading has been taken. With a further press of the START button , you can call up the result stored in memory slot “2”. A total of 12 memory slots are available, and these will be displayed in order if you continue to press the START button . If a memory slot is empty, the symbol “- - -“ will appear next to it in the display. 2 Changing the unit of measurement When taking temperature, you have the choice between degrees centigrade and degrees Fahrenheit. Hold down the START button  on the back of the unit for at least 10 – 15 seconds until the current unit of measurement is shown in the display. You can now change the unit of measurement with a further short press of the START button . Once the desired unit of measurement is displayed, wait until all the display symbols flash in the illuminated display and the change is confirmed with a short tone. Directly after this, the thermometer is ready to take the next reading with the newly selected unit of measurement. At the same time, all stored data is automatically converted to the new unit of measurement. 1 Explanation of display symbols and error messages Display Description SWITCHING ON All symbols are displayed for 2 seconds. Memory Function Automatic display of the last reading for 3 seconds. [. . . ] Please check the position of the battery. 2 Cleaning and maintenance • The sensor is the most sensitive part of the TELEFUNKEN FTO infra-red thermometer. Protect the lens from dirt and damage by always putting the protective cap on the thermometer when it is not in use. €¢ Should the lens get dirty, you can clean it carefully using the alcohol wipes supplied with the unit. [. . . ]