Temperature and pressure monitoring protects assets and infrastructure in an industrial set-up. Thus, it is very important to invest in proper monitoring instruments for the safety of life and equipment.
For example, pressure monitors help oversee pressure on transformers, load tap changers and other liquid-filled electrical apparatus. Using these instruments provides overpressure protection.
Smaller pressure relief devices are composed of one-piece brass housing with a stainless steel spring, pull ring and viton o-ring seal; while slightly larger ones have a tip or side gasket that seals under repeated operations. Irrespective of size, one may opt for pressure monitors with either fixed or field adjustable pressure settings with maximum flow rates ranging from 35 to 200 SCFM.
Advanced, high-protection versions provide maximum safety and environmental protection when monitoring pressure on critical oil-filled electrical apparatus. These devices use a special directional field to control hot oil and gas discharge. All hardware of such pressure monitors is made from corrosion-resistant stainless steel.
Pressure switches help in vacuum alarming on apparatus with nitrogen blanket systems. They consist of an extremely reliable alarm system to indicate rising and falling pressure and cut-off valves for field testing.
Pressure indicators and bleeders are other types of pressure monitors. While the former provide a clear visual indication of internal pressure condition, the latter controls it. Also, indicators are filled with liquid while bleeders come with mounting style and sampling valve alternatives. One may opt for dual-purpose instruments to monitor vacuum along with pressure.
Temperature monitoring is conducted in a range of industries, including semi-conductor processing, pharmaceuticals, food and beverage and more. Among the gamut of temperature monitors available in the market, direct-mount gauges are useful to indicate temperature where the point of measurement is on the side of the apparatus and can be easily viewed. Usually, these temperature gauges perform bi-metal measurement without the usage of power. Their lens may be sealed or vented.
Ones with a lower profile probe may even be used on dry type transformers. The dial faces of these temperature monitors contain angular dial spans of 90° to 260° for ease of viewing. Varieties at the higher end also consist of a flexible head and multiple fully-adjustable switches.
While all good temperature gauges contain resettable maximum pointers, advanced versions also allow specification of switches by type, hysteresis range and set point. They can perform internal winding temperature simulation even without a heated well, and contain a built-in lever for switch field testing.
Electronic temperature monitors comprise a sensor that derives information, like change in temperature, as analog data and converts it into digital data. Accompanied by an amplifier, temperature monitors boost their signal levels and block interference to accurately observe and then display data on a computer or voltmeter.
All in all, pressure and temperature monitoring can save literally millions of dollars for a business by providing long-term protection to its assets and infrastructure.
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