New FP-ELS-L level sensors | News
New FP-ELS-L level sensors
16.02.2021.The Russian refrigeration equipment plant Frigopoint announces the launch of serial production of new FP-ELS-L level sensors. New sensors measurement technology based on the Hall sensor, similar to that used in FP-ELS2 level sensors and FP-ERL4 oil level regulators. The FP-ELS-L level sensor is intended for use as an electronic meter for limit values of the levels of working media in capacitive equipment - vessels and apparatus working under pressure. To be installed to the connection ports of devices for visual level control (interfaces). The sensors are compatible with all HFC, CFC and HCFC refrigerants, mineral and synthetic oils. The degree of protection of the shell is IP65. Level sensors have the following advantages over analogs:
• Immunity to dirt;
• Immunity to foaming of the working environment;
• Simplified design - reduced sensor cost
The new sensors use a Hol sensor based measurement technology similar to that used in FP-ELS2 level sensors and FP-ERL4 oil level regulators. The sensors are connected to the ports of the sight glasses of pressure vessels:
Operating principle:
In the off state, the indicators are off, the contact of the alarm relay is closed. If during operation the level of the environment is within the limits that meet the requirements of the normal level, i.e. when monitoring the upper level - the level of the medium is below the upper level of the sight glass, and when monitoring the lower level - above the lower level of the sight glass, then the green LED indicator "normal level" is on. The contact of the alarm relay is then opened. If the level of the monitored medium deviates beyond the sight glass to the area of the emergency level of the device, the green indicator turns off immediately and the red indicator “emergency” lights up, the contact of the alarm relay closes into the “emergency” state. To protect against frequent operations in the state of the limit alarm level, there is a hysteresis in level, which is about ½ part of the height of a standard sight glass.
In the meantime, there is no need to worry about it. ”
The sensor development was completed in October 2020. Since then, over 200 sensors have been field tested.