How To Use Digital Thermometers Digital Thermometer Calibration Specifications

How to use digital thermometer

The digital thermometer uses a temperature sensor to convert (temperature) into a digital signal, and then displays the temperature in digital form through a display (such as a liquid crystal, a digital tube, an LED matrix, etc.), and can quickly and accurately measure the highest value of the human body temperature, and the conventional Compared with the mercury thermometer, it has the advantages of convenient reading, short measuring time, high measuring precision, memory and prompt sound. Especially the digital thermometer does not contain mercury, which is harmless to the human body and the surrounding environment, and is especially suitable for hospitals and families.

Instructions

1. Before using the thermometer, the head of the thermometer should be disinfected with alcohol.

2. Press the switch and the buzzer will immediately sound a buzzer for about 2 seconds.

3. The display then displays the temperature of the last side (falsely measured as 36.5 ° C) and the well lasts for about 2 seconds. The “°C” symbol flashes to indicate that the thermometer is in the standby state. (When the room temperature is higher than 32 ° C, the "°C" symbol keeps flashing).

4. Use a thermometer to measure body temperature. The temperature value displayed when the body temperature is measured gradually rises, and the "°C" symbol keeps flashing.

5. When the temperature rise rate is less than 0.1 °C within 16 seconds, the “°C” symbol stops flashing, and the thermometer emits a buzzer sound for about 5 seconds. At this time, the measured body temperature value can be read after the thermometer is measured.

Digital thermometer calibration specification

As an online display instrument, the digital thermometer generally has a temperature range of (-50~1000) °C. It is equipped with a platinum resistance or a K-type thermocouple sensor as a temperature measuring component. It uses a battery for long-term power supply, no external power supply, and is easy to install and use. Low power consumption, high precision, digitization, overcoming the old-fashioned thermometers such as glass liquid thermometers and bimetal thermometers, which are easy to be broken, can only be observed in the field, the visual value error is large, the pointer table has low precision, and the pointer and the transmission mechanism are easily damaged in the vibration occasion. The shortcomings have been more and more widely used in various industries such as machinery, chemical industry, food, medicine, construction, petroleum, etc. The verification workload of digital thermometers by various metrological verification departments has also been greatly improved.