There are other factors to consider but it should not be assumed that PRTs are “best”. A type K thermocouple however will have an accuracy of ☑.5☌ at the same temperature. Take a Class B Pt100 operating at 300☌, it should be accurate to ☑.8☌. There is a myth that PRTs are always more accurate than thermocouples but this is not necessarily the case.
THERMOMETER USB LOGGER FREE
For the lower accuracy sensors it is quite acceptable to use a 3 or even a 2 wire system but for the higher accuracy 1/5 DIN and 1/10 DIN types we strongly recommend a 4 wire system. Shop Staples for REED Instruments USB Temperature/Humidity Datalogger -40 to 158degree f (R6020) and enjoy fast and free shipping on qualifying orders. The unit displays current or logged readings, time and date, memory location, and temperature differentials. Incomplete immersion can introduce measurement errors due to stem conduction.įinally, it is also important to consider the wiring system utilised in the sensor. Humidity+Temperature Chart Recorder with Detachable Probe (220V) Graphical datalogger for Humidity/Temperature measurements and Dew Point calculation. Thermometer and Thermometer / Data Logger captures and displays maximum/minimum temperatures for long term sample monitoring with 99 built in memory locations. It is extremely important to ensure that your RTD is completely immersed to ensure that accuracy is maintained. The next thing to consider is the probe immersion.
Note that accuracy is best for all classes at 0☌ and worsens for increasing and decreasing temperature.
The table below gives the accuracy for each tolerance band at different temperatures. Class B is the least accurate, 1/10 DIN is the most accurate. We from Elitech provide a variety of options to attend to our customer needs, whether is wireless, Bluetooth, or USB data transfer. Part of the standard that we operate to governs accuracy.įirst of all there are five accuracy bands Class B, Class A, 1/3 DIN, 1/5 DIN and 1/10 DIN.