 Thermo Fisher Scientific has years of solid experience in supplying non-contacting fly ash level measurement equipment to the specific needs of the power generation industry. Innovative application of the technological advancements made during the seventies has led directly to the development of a system that now is becoming the industry standard for the eighties: Thermo MeasureTech's TN PNM Level System.
The TN PNM Level System combines Thermo Fisher Scientific's reliable digital signal and pulse counting techniques with a specialized microprocessor. For you, the result is a level monitoring system with self-diagnostic features, so that plant personnel can verify the operating status of each of many level switches at a single, centralized indicator panel. It will display the actual number of detector counts received from any designated hopper. It will set all its own indicators, whether green, red, flashing or off. It will test all its own internal counting circuit electronics and indicate the status of each channel. And it will activate its own common alarm light when needed.
The TN PNM level system needs no personnel inspection unit it signals an alarm condition. If process problems occur, such as wall buildup or equipment failure, it will identify and localize the problem. With the TN PNM, there also is no need for preamplifier electronics at the detector. No need to adjust a potentiometer since all adjustments are made digitally on switches. No need for expensive overhead welding of mounting hardware on the dual-beam source heads, nor for cutting hopper lagging or welding in order to mount the detectors. No need to worry about microprocessor loss of memory, should a power failure occur, because of Thermo Fisher Scientific's unique detector count comparison system.
In short, the TN PNM Level System is a state-of-the-art, microprocessor system with the remarkable ability to monitor as many as 64 fly ash hoppers, continuously, economically and precisely. |