Raytek 3i Series Raytek-Noncontact Infrared Temperature Measurement
The 3i Series is available in a broad variety of temperature ranges, sighting options, optical ranges, and offers spectral responses to meet the needs of specialized industrial applications. These units are made-to-order and matched for optimum performance when measuring critical temperatures in very distant targets or high temperatures up to 3000ºC or 5400ºF. To assure accuracy, 3i Series also compensates for the energy reflected by the background around the target, making it a great tool to use nearby objects with high temperatures; for example inside a furnace.

With Raytek 3i series, you have a choice between single and dual laser models, crossed laser models, and scope sighting models.
Most frequent applications include process monitoring, maintenance, and inspections:
- Glass Manufacturing
- Plastics Applications
- Heat Treatment
- Plant/Facility Maintenance
- Energy Inspection
- Power Distribution
- Fire Safety
Specifications:
3i General Purpose Models
Temperature Range: -30º to 1200°C (-20º to 2200°F)
Spectral Response: 8 - 14 microns nominal thermopile detector)
Distance to Spot Size: 25:1 up to 180:1
Emissivity: 0.10 - 1.0 digitally adjustable
Power: 4 AA Alkaline or rechargeable batteries or 6-9 V, 200 mA DC power supply
3i High Temperature Models
Temperature Range:
1M Temp. Range: 600º to 3000°C (1100º to 5400°F)
2M Temp. Range: 200º to 1800°C (400º to 3275°F)
Spectral Response: 1.0 microns (1M), 1.6 micron (2M)
Emissivity: 0.10 - 1.0 digitally adjustable
Power: 4 AA Alkaline or rechargeable batteries or 6-9 V, 200 mA DC power supply
Glass Model
Temperature Range: 150º to 1800°C (300º to 3275° F)
Spectral Response: 5.0 microns
Emissivity: 0.10 - 1.0 digitally adjustable
Power: 4 AA Alkaline or rechargeable batteries or 6-9 V, 200 mA DC power supply
Thin Film Plastics Model
Temperature Range: 10º to 800° C (50º to 1450° F)
Spectral Response: 7.9 microns
Emissivity: 0.10 - 1.0 digitally adjustable
Power: 4 AA Alkaline or rechargeable batteries or 6-9 V, 200 mA DC power supply