Pyrometer

Pyrometer

Key Features

Non-Contact Temperature Measurement
  • Measures temperature without touching the object
  • Ideal for hot, moving, or hazardous surfaces
Thermal Radiation Based
  • Detects infrared energy emitted by objects
  • Ensures accurate temperature sensing
Compact Cylindrical Design
  • Threaded body for easy mounting
  • Suitable for tight industrial spaces
Fast Response Time
  • Provides instant readings
  • Ideal for real-time monitoring
Wide Temperature Range
  • Typically from -50°C to 1000°C+
  • Varies based on model
High Accuracy
  • Adjustable emissivity setting
  • Improves measurement precision
Long-Distance Sensing
  • Measures from a safe distance
  • No physical contact required
Rugged Industrial Build
  • Metal housing (SS/Aluminum)
  • Designed for harsh environments
Industrial Output Options
  • Analog: 4–20 mA / 0–10 V
  • Digital: RS485 / Modbus
Easy Installation
  • Comes with mounting brackets
  • Adjustable support for positioning
No Wear & Contamination
  • No contact with target
  • Long service life
Suitable for Moving Targets
  • Works with rotating shafts
  • Ideal for conveyor applications

Working Principle

1. Emission of radiation from hot object

  • The target object emits infrared (IR) radiation depending on its temperature.

2. Collection of radiation

  • The pyrometer lens focuses this radiation onto a detector.

3. Detection by sensor

  • A detector (thermopile/photodiode) converts IR radiation into an electrical signal.

4. Signal processing

  • The signal is amplified and processed inside the device.

5. Temperature calculation

  • Temperature is calculated using radiation laws (based on Stefan–Boltzmann law).

6. Output display

  • Final temperature is displayed or sent as output (e.g., 4–20 mA signal).

Industrial Applications

Furnaces & Kilns
  • Measures high temperatures
  • Used in steel, glass & ceramic furnaces
Steel & Metal Industry
  • Monitors molten metal temperature
  • Used in billets and rolling processes
Glass Manufacturing
  • Measures molten glass temperature
  • Ensures quality production
Cement Industry
  • Used in rotary kilns
  • Monitors clinker temperature
Power Plants
  • Measures boiler & flue gas temperature
  • Monitors turbine components
Chemical Industry
  • Used in reactors
  • Suitable for high-temperature processes
Automotive Industry
  • Monitors engine parts
  • Used in exhaust and heat treatment
Food Processing
  • Ensures hygienic temperature measurement
  • Non-contact sensing
Plastics & Rubber Industry
  • Measures molten material temperature
  • Used in extrusion processes
Electronics Manufacturing
  • Used in semiconductor production
  • Monitors PCB temperature
Aerospace Industry
  • Measures temperature of moving parts
  • Suitable for high-speed components
Research & Laboratories
  • Used in high-temperature experiments
  • Supports precise measurements

Technical Specifications

Parameter Typical Range / Value Description
Working Principle Based on thermal radiation Measures temperature from emitted IR radiation
Temperature Range -50°C to 3000°C Depends on type (IR/optical)
Spectral Range 0.7 μm to 14 μm Wavelength of detected radiation
Accuracy ±0.5% to ±1% of reading High precision measurement
Repeatability ±0.1% Consistent readings
Response Time 1 ms to 500 ms Very fast sensing
Emissivity Range 0.1 to 1.0 (adjustable) Depends on material surface
Distance-to-Spot Ratio 10:1 to 300:1 Measurement distance capability
Field of View Depends on optics Area measured by sensor
Output Signal 4–20 mA / 0–10 V / Digital (RS485, Modbus) Industrial interface
Display LCD / LED (optional) Shows temperature
Power Supply 12–30 V DC Standard industrial supply
Operating Temperature -20°C to +70°C Ambient working condition
Storage Temperature -40°C to +85°C Non-operating condition
Protection Rating IP65 / IP67 Dust & water protection
Housing Material Stainless steel / Aluminum Rugged construction
Mounting Type Threaded / Bracket mounted As shown in image
Laser Sighting Optional For accurate targeting
Optics Type Fixed focus / Adjustable focus Based on application
Calibration Factory calibrated May require periodic recalibration
Signal Processing Digital filtering Reduces noise
Communication Protocol Modbus / RS485 / HART For automation systems
Cooling Options Air / Water cooling (for high temp areas) Protects sensor
Response Output Continuous / Switching Depends on model
Weight Lightweight (varies by model) Easy installation