On-line infrared thermometer common faults and their solutions
Online infrared thermometer common failures and their solutions As we all know, industrial production can not be separated from the precision instruments online thermometer to monitor the temperature of the object, online infrared thermometer has been very mature, very common in factories, online infrared thermometer is usually used in conjunction with the instrumentation, very often in the form of a transmitter, that is, the infrared thermometer output signals are converted into some standard signal output through the relevant circuitry. Processing, converted into some standard signal output, such as 0 --- 5V voltage, or 4 --- 20mA output. In supporting the use of some minor failures may occur, here are a few common failure phenomena and their solutions:
1: the measured medium temperature increases or decreases, the online infrared thermometer output does not change, this situation is mostly online infrared thermometer sealing problems, may be online infrared thermometer is not sealed, or in the welding accidentally welded infrared thermometer welded a small hole, this situation generally need to replace the infrared thermometer shell in order to solve the problem.
2: online infrared thermometer output error, this case, the possible reasons are more, if the replacement of the online infrared thermometer in the online infrared thermometer, may be the selection of the new infrared thermometer linear range of change and the original is not consistent, resulting in the sensitivity of the error, usually change the infrared thermometer needs to be recalibrated. Of course, online infrared thermometer output error, it may also be the infrared thermometer is not calibrated at the time of shipment, then re-calibrated on the good.
3: online infrared thermometer output signal is not stable, the reason for this is the temperature source itself, a lot of the temperature source itself is generally not a constant temperature, if there are conditions can be observed in the room at room temperature under important conditions, and other instrumentation to monitor the infrared thermometer output signal is stable. If only the instrument display is not stable, that is, the display instrument is not strong anti-interference capability. Of course, listed here is only part of the reason, are more common. In actual use, but also need to understand is the type of online infrared thermometer and application characteristics and other information, to be able to better utilize it.
