HEL-777-A-U-0

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Temperature is integral to many processes, and its control is essential to many areas of industry. Temperature sensors are devices which aid in temperature control, by allowing automation of the processes involved. RTDs (Resistance Temperature Detectors), known also as PRTs (Platinum Resistance Thermometers), utilize a material such as a metal to detect changes in temperature over time or over short-term control processes. The commonly used RTD is the HEL-777-A-U-0, which is designed to measure temperatures in a range from -200℃ to 850℃, and is used specifically to measure temperatures in high-pressure processes such as those used in petrochemical production.

HEL-777-A-U-0 RTDs operate on the principle of resistance. The RTD is composed of a sensing element and a Wheatstone bridge circuit. The sensing element is generally composed of a thin metal wire, most commonly platinum, wound into a coil. Platinum is used as it has a very low temperature coefficient of resistance, meaning its resistance changes very little with temperature. This coil, along with the other components of the Wheatstone Bridge, create a closed circuit which is supplied with a known voltage. When a temperature change occurs, the resistance of the sensing element changes, thus affecting the balance of the bridge circuit and causing the output voltage of the RTD to move in direct proportion to the resistance change.

The HEL-777-A-U-0 is most often used in industrial process applications, particularly for high-pressure production processes, such as those involved in the petrochemical industry. By accurately measuring the temperature of the process, the RTD can monitor process performance and ensure that optimal conditions are maintained. The RTD\'s resistance changes with temperature in a manner which can be easily measured and monitored, which is an essential aid to process control. The RTD\'s low temperature coefficient of resistance allows it to measure changes in temperature very accurately, even over extreme temperature ranges.

The combination of metal and the Wheatstone Bridge circuit allows the HEL-777-A-U-0 to detect small changes in temperature quickly, and accurately monitor any variations in temperature of the process. The closed circuit and known voltage supply allows the RTD to detect changes in the resistance of the sensing element with high accuracy, allowing for precise and reliable temperature control. The HEL-777-A-U-0 is a reliable and robust device which is well suited to the industrial environment.

The HEL-777-A-U-0 is a highly accurate, low temperature coefficient of resistance RTD sensor which is designed to measure temperatures in short-term high-pressure process applications, particularly in the petrochemical industry. By utilizing the combination of a metal sensing element and a Wheatstone Bridge circuit, the RTD is able to quickly and accurately detect changes in temperature, allowing for control of the process to be maintained.

The specific data is subject to PDF, and the above content is for reference