In laboratories and industrial settings of various types, it is critical gas levels be accurately and reliably monitored at all times. Since even the smallest gas leak that goes unnoticed can result in a fire or explosion, workers know this is one area of industrial safety that cannot be overlooked. Because of this, many buildings and complexes now use LEL gas leak detectors that possess sophisticated electronics and alarms. However, due to the many types of harsh work environments in which these detectors are placed, it is always possible problems can develop regarding the detector’s accuracy and reliability. To ensure all goes well, here are some tips on how to check a faulty LEL monitor.
Since the majority of LEL gas detectors are equipped with multiple alarm systems, it is vital they be checked on a regular basis to make sure they will work as intended. Should you suspect your detector may be experiencing problems, the best way to find out is to test the detector using a controlled amount of gas. In doing so, you will be able to know if the detector’s alarms activate as expected, and also if the detector is able to detect dangerous gas levels as quickly as needed.
In many work settings, engineers and instrumentation technicians regularly perform various types of calibration testing on LEL sensors. To do so, they use various methods both on and off-site. For on-site testing, instrumentation technicians also use small amounts of gas with the sensors to make sure they detect the gas and transmit the real-time data to engineers and other personnel stationed nearby. As for off-site testing, engineers in monitoring centers program the sensors to detect gas levels within a certain range. Once done, on-site technicians release small amounts of gas near the sensors that fall within the programmed range to see if all goes as planned. Should problems develop, engineers and maintenance personnel can address the problem.
Troubleshooting and Inspections
Since most LEL detectors use electrochemical sensing to detect dangerous gas levels, troubleshooting and regular inspections of these devices is extremely important. Due to their use of multiple pathways such as open path and sample draw detection, the systems can work well in many types of work environments, such as those with high humidity levels or temperature extremes. However, in situations where equipment shocks and vibrations may be a factor, it is always best to inspect the detectors and sensors on a regular basis.
Due to the fact that a dangerous gas buildup can occur in only a matter of minutes, it is critical detectors be able to send real-time data to monitoring personnel as fast as possible. To do so, they use wireless networks that can allow them to be linked to mobile devices as well as with computers located within nearby monitoring centers. However, should data not be transmitted quickly enough or if it appears to be inaccurate, the detector’s connection to the wireless network should be examined.