Practical expertise relating to temperature measurement with immersion thermometers
Immersion thermometers from Testo are specifically designed for measuring the temperature in liquids, pastes and semi-solid media such as meat, fish or dough. Here, no distinction is made between immersion thermometers and penetration thermometers, because the probe tip is optimized for media ranging from liquid through to semi-solid. However, depending on the application, different performance characteristics are required in the temperature measurement.
The surprising versatility of a stem – on an immersion thermometer
The stem contains the temperature sensor and is inserted into the medium during measurement. On Testo measuring instruments, not only is the probe tip on the stem suitable for immersion in liquids, it is also pointed at the front like a syringe needle, for penetrating smoothly through the tissue of viscoplastic substances. You can also use your penetration and immersion thermometer to measure the air temperature. Just give the thermometer some time to adjust, and you have a high-precision air temperature measurement. Simple but versatile!
Find out here which immersion thermometer is right for your requirements:
- Temperature measurement on saucepans:Industrial kitchens, top restaurants or school canteens - it is imperative that professional temperature checks form part of the daily routine and are documented. An immersion thermometer from Testo will enable you to handle all of your monitoring duties quickly, efficiently and with precision.
- Proof of the cold chain:Used in Incoming Goods. Here, there are daily deliveries of fresh or deep-frozen food, whose cold chain has to be completely traceable. This is achieved via professional temperature measurement. Plus, of course, it needs to be done quickly. In addition to Testo's straightforward penetration thermometers, the lightning-fast infrared thermometers have also proved their worth when it comes to spot checks. The combination of penetration probe and non-contact infrared thermometer in one instrument is very popular.
- Immersion measurement in aggressive substances: Testo offers a series of special immersion thermometers for measuring the temperature in chemical solutions during etching processes. Developed for the special practical requirements in laboratories and industry.
- Measurement in temperature zones:The exceptionally robust temperature data loggers are ideal for long-term temperature measurement. They have proven their worth in applications such as cold chain monitoring, storage climate recording and laboratory climate documentation. The networked temperature meters record and document the measurement data seamlessly and reliably. So you can always be sure that the required temperatures stay within the prescribed limits.
Prevent measurement errors with your thermometer for immersion
One of the most common application errors when it comes to temperature measurement is impatience. Why is that? Because your immersion thermometer requires a sufficient acclimatization time. If the temperature probe and measurement object are at different temperatures, the measurement results are falsified because the actual temperature is not measured. If, for example, the probe is colder than the measurement object, it extracts the heat – and therefore energy too. You can easily prevent this by observing the so-called t99 time and two rules of thumb:
- The t99 time:t99 time is the time required by the immersion probe to achieve 99% of its final measuring value. The probe achieves the 90% value quite quickly – however, it takes just as long again to get from the target stage of 90% to the 99% value. The exact acclimatization time can be inferred from the performance characteristics of your immersion thermometer.
- The 2 immersion thermometer rules of thumb:1. For your immersion thermometer, select an immersion depth that corresponds to 10 to 15 times the diameter of the immersion probe. 2. Keep the liquid slightly in motion throughout the measuring process.