Corrosion-resistant temperature sensors are specifically designed for measuring the temperature of highly corrosive media with temperatures ≤220℃, such as sulfuric acid, hydrochloric acid, phosphoric acid, strong oxidants, and organic solvents. Commonly used corrosion-resistant temperature sensors are resistance temperature detectors (RTDs) (PT100, PT1000).
Features:
Corrosion-resistant temperature sensors are not a new product; significant progress has been made in corrosion resistance, lifespan, and product stability!
1. The corrosion-resistant temperature sensor adopts a multi-layer corrosion-resistant structure (the corrosion-resistant protective tube of the temperature sensor is usually a thick-walled 316L steel pipe with an integral sintered polytetrafluoroethylene layer and a wear-resistant and corrosion-resistant layer). The corrosion resistance and service life have been verified by many domestic enterprises through long-term use.
2. The corrosion-resistant layer of the high-quality corrosion-resistant temperature sensor is sintered entirely with polytetrafluoroethylene using a single sintering process, solving the problem of easy leakage at seams that is unavoidable in other manufacturing processes. This technology extends the service life of corrosion-resistant RTDs and other corrosion-resistant products; in environments with minimal wear, the average service life of corrosion-resistant RTDs exceeds one year.
3. In the field of use, there are often high-velocity particles of the measured medium that severely erode the anti-corrosion layer of the thermal resistor. The anti-corrosion thermal resistor has an additional wear-resistant material layer outside the anti-corrosion layer, which can effectively extend the service life of the anti-corrosion layer by 8-10 times in the erosion environment.
Technical Specifications:
1. The thickness of the PTFE anti-corrosion layer of the anti-corrosion RTD is 1.0mm (or as required by the user).
2. Thermal response time of corrosion-resistant RTD: After corrosion protection treatment, the thermal response time changes by about 20%.
3. Quality acceptance inspection of anti-corrosion layer: The product is qualified if it does not break down when the electrical spark micro-hole flaw detection is used at a voltage of 12kV and a frequency of 1.6×106Hz.
4. Other technical specifications of the corrosion-resistant RTD are the same as those of ordinary industrial RTDs.
Installation Notes:
During installation and transportation, it is essential to ensure that the anti-corrosion layer of the resistor is not damaged or subjected to external impact. Damage to the anti-corrosion layer will shorten the service life of the anti-corrosion resistor or cause it to completely lose its anti-corrosion function.
Parameter requirements:
Applications: Used in chemical industry, electroplating equipment, environmental protection systems, sewage treatment, petrochemical industry, printing and dyeing, pharmaceutical industry, and food industry.
Temperature sensing element types: single PT100, single PT1000, dual PT100, dual PT1000, etc.
Accuracy options: 2B grade ±0.6℃, B grade ±0.3℃, A grade ±0.15℃, AA grade ±0.1℃.
Temperature measurement range: -50~260℃.
Connection method: two-wire/three-wire/four-wire.
Protective tube diameter: PTFE-coated, 3mm, 4mm, 5mm, 6mm, 8mm, etc. (custom sizes available upon request).
Protective tube lengths: 30mm, 40mm, 50mm, 100mm, etc. (customizable upon request), or submersible lengths of 0.5m, 1m, 2m, 3m, etc.
Installation methods: Insertion or threaded installation M10*1, M16*1.5, G1/4, G1/2, M20*1.5 (customization available upon request).
Transmitter options include: 4-20mA, 0-5V, 0-10V, 1-5V, 1-10V, and RS485.
Connecting wire: PTFE Teflon wire
On-site temperature measurement requirements: high temperature resistance/waterproof/corrosion resistance/wear resistance/shock resistance/other.
