The precautions for using a Bluetooth temperature recorder mainly include the following aspects:
1. Device connection and initialization
Bluetooth pairing: First use requires pairing through a dedicated app (such as ElitechTools), long press the device mode button to activate the Bluetooth identification and connect. Some models (such as testo 110 Food) need to ensure that the Bluetooth function of the phone is turned on and the distance from the device is not more than 10 meters.
Signal stability: Avoid placing the device in a metal shielded or strong electromagnetic interference environment, as it may cause data transmission interruption.
2. Operating standards
Start and Stop: Long press the start stop button to start recording (displaying the triangle icon), long press the stop button again (displaying the square icon), and the device will emit an orange flashing alarm and beep sound when exceeding the time limit.
Printing function: Bluetooth printing requires turning on the printer power first. After the indicator light turns blue, press the recorder print button briefly. During the printing process, data cannot be synchronously recorded.
3. Maintenance and Calibration
Battery management: Designated battery models must be used, and when replacing, 3 fully charged batteries must be replaced at the same time, paying attention to the polarity direction. When not in use for a long time, the battery should be removed to avoid leakage and corrosion of the circuit.
Probe protection: Do not pull the probe head or disassemble the equipment by yourself. When cleaning, only use an alcohol swab to wipe the probe lens. Regular calibration (such as once a year) can ensure measurement accuracy of ± 0.5 ℃.
4. Environmental adaptability
Extreme temperature protection: The measurement range is usually -40 ℃~80 ℃, and exceeding the range may damage the sensor. When transporting fresh produce, it is necessary to avoid direct contact between the equipment and ice packs or heat sources.
Data synchronization: 4G upload requires waiting for the device to display the cloud icon before operation, otherwise it may result in data loss.
5. Special scenario restrictions
Medical use: Ear thermometers are not suitable for patients with tympanic membrane perforation and should be used for axillary temperature measurement instead. The food industry recommends using a piercing probe to detect the center temperature of raw materials.
Compliance requirements: Medical cold chain records must be kept with a complete data chain, and emergency plans should be immediately activated and processing records should be retained after exceeding the limit alarm.