At present, the common temperature measuring instrument in the industrial line, widely used in many industries and fields, thermal resistance, thermocouple, bimetallic thermometer, temperature transmitter, temperature remote monitor, non-contact temperature meter, local display thermometer, temperature switch, fast thermocouple thermometer, wear-resisting, etc are temperature instrument. TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
are in the majority of measuring product range than the parameters of the customer will notice when choosing its range, so the better the performance of the greater range than? So what is the range than mean? What is the effect of range of temperature instrument? Customers how to choose and buy? TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
when choose temperature instrument testing in order to ensure the accuracy of measurement accuracy, temperature gauge selection need to pay attention to the instrument operation characteristics and applicable scope of each style. Temperature meter range than it is the largest measurement range and the minimum measuring range. Range than the big rise to adjust the room is big, can be easy to change the transmitter on the process of measuring range, without the need to replace the instrument, range than the transmitter is a very important technique index. We choose instrument, however, is not at the greater range than the performance of the instrument is better, there is a use of the concept of range. Such as a range of 0 ~ 350 kpa integrate temperature transmitter, when we actually measured temperature of 50 kpa, we choose the range of choice of 0 ~ 100 kpa, range can be controlled using this range. If the range of temperature transmitter ratio is 10:1, means that we are to ensure the precision of integrated temperature transmitter ( For example: 0. 065%) Circumstances, to choose the minimum use range of 0 ~ 25 kpa, use range is less than the range, the precision of the instrument will drop, but not reached 0. 065%; In the range from 0 ~ 25 kpa and between 0 ~ 250 kpa, the precision of the instrument to be able to guarantee. So use range and the maximum difference is not too large, otherwise the instrument precision will decline. Below to introduce temperature instrument selection and installation method. TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
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categories: such as the bimetallic thermometer for temperature signal in situ detection and indication, measurement accuracy is not high. Thermocouple, heat resistance, the temperature signal presented can be used for the instrument to achieve online measurement, thermal resistance and thermocouple is the most commonly used in industry to the two kinds of thermometer table, suitable for measuring the thermal resistor 500 degrees under low temperature, thermocouple is more suitable for measuring the range of the high temperature of 500 ~ 1800 degrees. There is also a radiant thermometer it is suitable for measuring temperatures above 2000 degrees. In addition, when choosing temperature measuring instrument, in addition to the comprehensive stability of the accuracy of measurement, signal system, such as technical requirements, should also pay attention to the influence of such factors as workplace, such as the working environment temperature and characteristic of medium etc factors, select the appropriate protective measures such as protect casing, connecting wire in the attachment. TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
2, the installation of the temperature measuring instrument, temperature instrument installed correctly, another key is to ensure that the normal use of the instrument, in general, the installation of the temperature measuring instrument need to comply with the following specifications: 1, the installation of the detecting element shall ensure the accuracy of measurement, choose the installation position of representative. For non-contact temperature measuring device, the detecting element should have enough insertion depth, should not be inserted the detecting element of blind Angle, to ensure that the detecting element and can be adequately measured medium heat, measure the medium temperature, the pipeline detecting element is located in the center of the pipe work end velocity, biggest test components should be installed against the direction of fluid flow, not can't have, never with downstream installation of measured medium, otherwise prone to measurement error; Measuring the negative pressure pipe ( Or device) Temperature, sealing, must be assured in order to prevent outside air suction and lower precision. 2, the installation of the detecting element shall ensure safe and reliable. To avoid the damage of the detecting element, contact measuring instrument to protect casing should have enough mechanical strength, can according to the scene of the work when using features such as pressure, temperature, corrosion, reasonably choose to protect casing material, wall thickness; When the medium pressure exceeds 10 mpa, must be installed to protect coat, to ensure safety; To reduce the measuring hysteresis, can be mounted inside the protection tube heat transfer good filling material, such as silicone oil, quartz sand, etc. ; Junction box appears holes should be facing down to avoid because of bad sealing moisture, dust and reduce the accuracy of measurement. 3, the installation of the detecting element should comprehensively consider the convenience of instrument maintenance and calibration. TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
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above is instrument of measuring temperature range than the related knowledge, after watching the hope to be of service, to some new cognitive range of temperature instrument. Product knowledge also cites a few commonly used measuring instrument convenient customer to choose suitable your product! Magnetic flap TNZ | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer
TNZ magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer