Explosion Proof Resistance Temperature Detector Sensor, PT100

The explosion proof resistance temperature detector sensor has a temperature range of -200~+500℃ and a thermal response time of 2s. It is made of 304 stainless steel and is not easy to corrode. It can be used in the power industry, medical equipment, aquaculture, petrochemicals, sewage treatment, industrial testing and other fields.

Specification

Note: The measured absolute value of temperature is t.

Features

• Multiple line options: Both two-wire and three-wire systems are available. The lines are clearly distinguished and the measurement is stable.
• Stainless steel material: 304 stainless steel is used, which is not easy to corrode and has a longer service life.
• High mechanical strength: The explosion-proof RTD sensor has good thermal conductivity and shock resistance, and the surface is polished and waterproof and dustproof.

Details

Installation

Application

Tips: The difference between two-wire and three-wire RTD sensors

• Two-wire: Two-wire RTD sensors use only two wires to simultaneously complete the excitation current transmission and voltage measurement. They have a simple structure and the lowest cost, but their measurement results include lead resistance, which can cause the temperature reading to be higher. Since the influence of wire resistance cannot be eliminated, the two-wire system has low accuracy and is only suitable for short-distance measurements or occasions with low accuracy requirements, such as temporary experimental tests or low-cost applications.
• Three-wire: Three-wire RTD sensors offset the influence of lead resistance by adding a compensation wire, two of which are of the same material and length for excitation current, and the third for voltage measurement. This design uses a bridge circuit or algorithm to eliminate most of the lead resistance errors, significantly improving measurement accuracy while maintaining a reasonable cost. The three-wire system is the most commonly used configuration in the industrial field, suitable for medium-distance transmission and scenarios requiring high reliability, such as PLC, DCS control systems, etc.