Calex - Model PyroCouple -Robust Infrared Temperature Sensor

• Choice of temperature ranges from -20°C to 500°C
• Durable, robust stainless steel 316 housing
• Fixed emissivity setting: 0.95
• 4-20 mA, Type K or J thermocouple, or 0-50 mV output options
• Fast response with high stability
• Sealed to IP65
• Measures non-reflective non-metals, or painted metal surfaces
• Not designed or approved for fever detection

Temperature Range
-20°C to 100°C (LT models)
0°C to 250°C (MT models)
0°C to 500°C (HT models)
Optics
Choice of optics for small or large targets at short or long distances - see Field of View Diagrams
Output (Measured Temperature)
Two-wire 4-20 mA (-0 models)
0-50 mV (-1 models)
Type J Thermocouple (-3 models)
Type K Thermocouple (-4 models)
Output (Sensor Body Temperature)
4-20 mA on power loop (models with output options 1 to 4 only)
Accuracy
±1% of reading or ±1ºC, whichever is greater
Repeatability
± 0.5% of reading or ± 0.5ºC, whichever is greater
Emissivity
Fixed at 0.95
Response Time, t90
240 ms (90% response)
Spectral Range
8 to 14 μm
Supply Voltage
24 V DC (28 V DC max.)
Min. Sensor Voltage
6 V DC
Max. Loop Impedance
900 Ω ( 4-20 mA output)
Output Impedance
56 Ω (voltage/thermocouple output)

Construction
Stainless Steel
Dimensions
18 mm diameter x 103 mm long
Thread Mounting
M16 x 1 mm pitch
Cable Length
1m (longer lengths available to order)
Weight with Cable
95 g

Environmental Rating
IP65
Ambient Temperature Range
0ºC to 70ºC
Relative Humidity
95% max. non-condensing

EN61326-1, EN61326-2-3 (Electrical Equipment for Measurement, Control and Laboratory Use – EMC Requirements – Industrial)

Typical Applications

Food
For food temperature measurement, a fixed-emissivity sensor such as the PyroCouple is usually suitable. A range of controllers and indicators is also available. A famous manufacturer uses the PyroCouple to measure chocolate temperature before the mould as it is heated in temperature controlled "kettles", and the temperature of toffee webs as they leave cooling drums.
Asphalt
Measuring tarmac road surface temperature when paving and in infrared pothole repair. Asphalt temperature measurement after heating and in discharge chutes
Paper
Temperature and moisture monitoring and control in corrugated board manufacturing, paper drying and condition monitoring
Plastics
Thermoforming temperature control and monitoring
Power industry
Monitoring the temperature of painted surfaces in switchgear
Microwave dryers
In food, paper, pharmaceutical and textile industries, among others, infrared temperature sensors can be positioned outside the microwave field and aimed at the object being dried
Infrared curing of paint and adhesives
If the emissivity of the target is high, the reflection of the infrared curing heater does not significantly influence the measurement, and the PyroCouple gives good results.
Condition monitoring
e.g. painted bearing housings, driveshafts, rollers and gearboxes
Leaf temperature
e.g. in greenhouses
Tyre manufacturing
Measuring the "green" tyre temperature before tread curing to compensate for seasonal temperature variation
Gas cylinder filling
Monitoring the temperature of each cylinder on a filling rig to improve repeatability in the filled volume and improve filling efficiency