OHM Generator Overheating Monitoring System

      HaoZhi provide the OHM generator overheating monitoring system of the Generator Condition Monitor and in more than 300 applications in china or worldwide , operators have the opportunity of taking corrective action if and when a critical situation occurs.




      High concentrations of submicron particles (pyrolytic products) are produced whenever any materials within the generator are heated sufficiently to produce thermal decomposition. These "hotspots" can lead to catastrophic failure if not detected in a timely manner.

      When they are present in hydrogen, pyrolytic products are quickly detected by the sensitive ion chamber of the OHM. In fact, the OHM warns of impending failure faster and more reliably than temperature sensors such as RTDs or thermocouples.

      If an emergency situation occurs, upon detection of hotspots the OHM microprocessor initiates and monitors an alarm verification sequence. If the alarm is confirmed, a verified alarm indication is given;alarm contacts are switched; and a fixed amount of the hydrogen flow automatically passes through the sampling system. Particles are then collected for laboratory analysis to determine their source.Alarm confirmation is quickly made by the automatic alarm verification system, which activates the solenoid valve in the filter/solenoid valve assembly. All the hydrogen then passes through the filter.