Einstechthermometer sind speziell zur Messung in Flüssigkeiten und zähplastischen Stoffen (Fleisch, Fisch, Teig, etc.) konzipiert. Durch das Einstechen in beispielsweise eine Joghurt- oder Milchverpackung wird die echte Kerntemperatur des Produkts ermittelt.
Diese Messmethode ist sehr genau und zuverlässig und deshalb eine gute Methode, um eine absolut sichere Aussage über den Temperaturzustand der Ware zu treffen.
Von Nachteil ist allerdings, dass ein „angestochenes“ Produkt nicht mehr verkauft werden kann und deshalb entweder schnellstmöglich verarbeitet, oder entsorgt werden muss.
Smart Probe zur kabellosen Temperaturmessung in unterschiedlichsten Anwendungen durch große Fühlerauswahl und Kompatibilität mit marktüblichen Thermoelement-Fühlern Typ K
Im Set: testo Smart Probe testo 915 mit sicherem Verschlussmechanismus zur Fixierung von Fühlern, Luftfühler, Tauch-/Einstechfühler und Oberflächenfühler, (alle TE Typ K, Klasse 1), testo Smart Case
Smart Probe zur kabellosen Temperaturmessung in unterschiedlichsten Anwendungen durch große Fühlerauswahl und Kompatibilität mit marktüblichen Thermoelement-Fühlern Typ K
Robuster und reaktionsschneller Tauch-/Einstechfühler (TE Typ K, Klasse 1) mit sicherer Fixierung durch innovativen Verschlussmechanismus im Handgriff, ideal für Temperaturmessung in Flüssigkeiten, pastösen und halbfesten Medien, Messbereich -50 bis +400 °C
These probes can however be used to take air measurements as well, if the measuring instrument is given sufficient time to adjust to the air temperature.
Practical: penetration probes can always be used as immersion probes too. In this way, the insertion thermometer becomes an immersion thermometer.
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Measuring correctly with a digital penetration thermometer
For measurements with a probe thermometer, the temperature probe is inserted directly into the measurement object. The measurement is finished when the so-called t99 time is reached. That is the time which a probe needs to achieve 99% of its final value. The 90% value is achieved considerably sooner, but it takes just as long again to get from the 90% value to the 99% value. All data concerning the acclimatization time of temperature probes in Testo documents refer to the t99 time.
A measurement error that frequently occurs with temperature measurement is that the temperature probe and the measurement object have different temperatures. This means either heat is supplied to the measurement object (probe warmer) or taken from it (probe colder) – and therefore energy as well. And the real temperature is no longer measured due to the energy extraction. However, this measurement error can be minimized by choosing a penetration depth of 10 to 15 times the diameter of the probe. For immersion measurements in liquids, the measurement error can also be reduced by the liquid being constantly kept in motion. This measurement error also occurs when using a food probe to measure foods, especially frozen goods, but it can be avoided through a sufficient penetration depth.
Food probes testo 104-IR
Digital penetration thermometers
Reliable and fast temperature measurement with an insertion thermometer is of particular importance in the food sector. However, in addition to core temperature measurements, it is also a case here of the non-contact measurement of surface temperatures. The testo 104-IR BT combined instrument was specifically developed for this. It combines penetration and infrared thermometers in a compact format.
The infrared penetration thermometer impresses thanks to:
precise 2-point laser with 10:1 lens for easy control at a distance
fold-out penetration probe for core temperatures
particularly robust construction and handy format – when folded away, it fits into any shirt pocket.
Further measuring instruments
Temperature measurement with thermal imagers
In contrast to penetration thermometers, thermal imagers do not measure temperatures inside a measurement object, but on its surface. To do this, they measure the thermal radiation emanating from the object and convert it into a thermal image. Thermal anomalies can then be very quickly and clearly identified on this image. Thermal imagers are often used in preventive maintenance or in the construction industry to detect weak spots on systems or buildings
Recording temperatures
For many applications, it is not enough just to measure temperatures. The temperature must be recorded as a time progression, especially for the storage of sensitive goods, such as food. Temperature data loggers are suitable for this. Unobtrusively attached to the wall, they measure and document temperatures and other ambient conditions at freely selectable intervals.
Measuring surface temperatures
With temperature measuring strips and an appropriate surface temperature meter, you can quickly record the surface temperature of a measurement object. Ideal if direct contact with the object does not present a problem.
Smart, non-contact measurement
Infrared thermometers are perfect for the non-contact measurement of temperatures from a distance. The Smart Probes are in turn available for a wide variety of measuring tasks. The main attraction for you: they are operated entirely via your smartphone/tablet and the testo Smart App.
