A temperature sensor is a device that measures the temperature of a medium and converts the measurement into a usable signal. These sensors are essential in a wide range of applications, from industrial process control and climate monitoring to medical devices and consumer electronics.
Purn Sanket Electrols is a leading manufacturer of industrial temperature sensors, specializing in high-precision PT100 temperature sensors and rugged high temp sensors for extreme environments.
A temperature sensor is more than just a sensing element; it is a complete assembly designed to protect the sensor from harsh process conditions while delivering accurate thermal data. Whether you need a high temperature pressure sensor for plastic extrusion or a delicate RTD thermocouple for laboratory use, we deliver custom-engineered sensors with NABL-traceable accuracy.
Types of Temperature Sensors
There are several types of temperature sensors, each with its own principle of operation and ideal use case.
High Temperature Thermocouples (Type K, R, S)
Thermocouples are one of the most common types of temperature sensors. Our high temperature pressure sensors in this category utilize two different metal wires joined at one end to generate voltage proportional to the heat. When this junction is heated or cooled, it generates a voltage that’s proportional to the temperature difference between the junction and the other ends of the wires. Thermocouples are known for their wide temperature range, durability, and fast response time, making them ideal for extreme environments like furnaces and ovens.
Resistance Temperature Detectors (RTDs PT100/PT1000)
RTDs measure temperature by correlating a change in electrical resistance with a change in temperature. They’re typically made of a pure metal, like platinum, copper, or nickel, which has a predictable relationship between resistance and temperature. RTDs are highly accurate and stable, making them suitable for applications requiring precise measurements, such as in laboratories and industrial processes. Purn Sanket Electrols RTDs use high-purity platinum elements to ensure linear resistance change.
- Sensor Types: Class A, Class B, 1/3 DIN.
- Configurations: 2-Wire, 3-Wire (Industry Standard), and 6-Wire temperature sensors for high precision.
- Applications: Pharmaceuticals, HVAC, Food Processing, Cold Storage.
Thermistors
A thermistor is a type of resistor whose resistance is highly sensitive to temperature. Unlike RTDs, which are typically made of pure metals, thermistors are made from ceramic or polymer materials. They come in two main types: Negative Temperature Coefficient (NTC) thermistors, whose resistance decreases as temperature increases, and Positive Temperature Coefficient (PTC) thermistors, whose resistance increases with temperature. Thermistors are known for their high sensitive temperature sensors and fast response in a narrow temperature range, and they are commonly used in electronic devices like digital thermometers and air conditioners.
Integrated Circuit (IC) Sensors
IC temperature sensors are semiconductor-based devices that measure temperature and provide a corresponding output, often in a digital or analog voltage format. These sensors are compact, low-cost, and offer a linear output, making them easy to integrate into electronic circuits. They’re widely used in computers, smartphones, and other consumer electronics for internal temperature monitoring.
Industrial Applications (Power, HVAC, Pharma)
Temperature sensors are ubiquitous and play a crucial role in modern technology. For example, they are used to control the temperature in an air conditioning system, monitor the engine temperature in a car, ensure food is cooked to a safe temperature in an oven, and regulate the temperature of a patient’s body in a medical setting.
Our temperature sensors are integral to safety and efficiency in:
- Plastics & Packaging: High temp sensors for heater bands and molds.
- Power Generation: Exhaust gas monitoring in turbines.
- Chemical Industry: Corrosion-resistant temperature sensors (Teflon coated) for acid tanks.
- Healthcare: Precision monitoring for incubators and sterilizers.
Technical Specifications & Comparison (RTD vs. Thermocouple)
Selecting the right temperature sensor is critical for process efficiency. Use this guide to choose the ideal sensor for your application.
| Feature | RTD (PT100 Sensor) | High Temp Thermocouple | Thermistor (NTC) |
|---|---|---|---|
| Best For | High Accuracy (Pharma, Labs) | Extreme Heat (Furnaces, Kilns) | Cost-effective OEM / HVAC |
| Temp Range | -200°C to +600°C | -200°C to +1600°C | -50°C to +150°C |
| Accuracy | High (±0.1°C to ±0.3°C) | Moderate (±1°C to ±5°C) | Moderate |
| Response Time | Moderate | Fast Response | Fast |
| Common Types | 2-Wire, 3-Wire, 4-Wire | Type K, J, R, S, B | NTC, PTC |
Why Choose Purn Sanket Electrols for Temperature Sensors?
In an industry flooded with traders and generic imports, Purn Sanket Electrols stands out as a dedicated manufacturer. With over three decades of engineering expertise, we ensure that every sensor we deliver offers the precision your process demands.
- In-House Testing & Calibration Accuracy is not optional; it is our standard. Every PT100 temperature sensor and thermocouple undergoes rigorous testing in our in-house calibration lab. We provide NABL-traceable calibration certificates upon request, ensuring your temperature sensor instruments meet international auditing standards.
2. Factory-Direct Customization We don’t just sell off-the-shelf. We fabricate.
- Custom Sheath Lengths: From 50mm to 2000mm.
- Varied Diameters: 3mm, 6mm, 8mm, or custom.
- Specialized Materials: SS316 for food/pharma, Inconel for high temperature sensors, or Teflon coating for acids.
- Material Integrity Cheap sensors fail because of poor raw materials. We source only high-purity platinum elements for our temperature sensors RTDs and high-grade stainless steel (SS304/SS316) for our protection tubes, ensuring longevity even in high-vibration and corrosive environments.
4. Rapid Dispatch & Support Because we manufacture locally in India, you don’t have to wait weeks for imported stock. We offer 24-48 hour dispatch for standard PT100 and thermocouple sensors models and prioritized manufacturing for urgent breakdowns.
What is a temperature sensor used for?
A temperature sensor is used to measure thermal conditions in pipes, tanks, and machinery. It consists of a sensing element (like a PT100 or Thermocouple) inside a protective sheath to withstand industrial environments.
What is the difference between a PT100 and a PT1000?
A PT100 temperature sensor has a resistance of 100 ohms at 0°C, while a PT1000 has 1000 ohms. PT1000 is often used in battery-powered applications to consume less power.
Can your sensors withstand 1200°C?
Yes, our High Temperature Thermocouples Sensors (Type K or R/S with Ceramic Sheath) are specifically designed to operate continuously at temperatures up to 1200°C and 1600°C respectively.
Do you offer calibration certificates?
Yes, we provide NABL-traceable calibration certificates for all our temperature pressure sensors upon request.