Sensys Corporation

Temperature transmitters convert a temperature sensor's output into a standardized, transmittable signal like 444-202020 mA or 000-101010 V, allowing for long-distance transmission to a control system or a secondary instrument. They are crucial for industrial temperature measurement and control, with applications in sectors like petroleum, chemical, food and beverage, pharmaceutical, and HVAC, ensuring process accuracy and safety. 

A Pressure Transformer Switch is an industrial control device used to monitor, measure, and control pressure in fluid or gas systems by combining the functions of a pressure sensor (transducer/transformer) and a switching mechanism. It is commonly used in applications such as HVAC systems, hydraulic and pneumatic equipment, compressors, pumps, boilers, process automation, and safety systems.

The device works by sensing pressure through a pressure-sensitive element such as a diaphragm, bellows, or piezoresistive sensor. When pressure is applied, this element deforms proportionally to the pressure level. The deformation is converted into an electrical signal (via the pressure transformer or transducer), which represents the measured pressure. At predefined pressure thresholds, the internal switch contacts change state (ON/OFF), allowing the device to directly control motors, alarms, valves, or relays.

Pressure transformer switches are designed to provide both continuous pressure feedback and discrete switching output. Depending on the model, outputs may include analog signals (such as 4–20 mA or 0–10 V) for monitoring, along with digital switch outputs for control or safety interlocks. Adjustable setpoints and hysteresis help prevent frequent switching and improve system stability.

These devices are valued for their reliability, compact design, and ease of integration into control panels and automation systems. They are typically housed in robust enclosures to withstand vibration, temperature variations, moisture, and harsh industrial environments. Many models are designed to comply with industrial safety and performance standards.

Overall, a pressure transformer switch plays a critical role in protecting equipment, maintaining operating efficiency, and ensuring safe system operation by accurately detecting pressure changes and responding instantly when pressure reaches critical limits.