FLIR A6451 Cooled Automation Camera (Select Lens and Calibration)

The FLIR A6451 Cooled Automation Camera is a high-performance midwave infrared (MWIR) thermal imaging camera designed for industrial process control, quality assurance and non-destructive testing. With a 640 × 512 infrared resolution, typical thermal sensitivity of 25 mK and frame rates of up to 125 Hz, it delivers accurate temperature measurement and high-speed thermal imaging for demanding automation applications. Operating in the 3.0–5.0 µm spectral range, the A6451 is well suited to continuous production monitoring, inspection and research applications.

Designed for Continuous Industrial Monitoring

Built around a high-sensitivity cooled MWIR detector and FLIR's long-life linear cooler technology, the A6451 is designed for 24/7 operation in demanding automation environments. The cooler has a rated lifetime of 27,000 hours, helping reduce maintenance requirements and support long-term monitoring. Programmable frame rates, adjustable integration times and flexible subwindow modes allow the camera to be configured for specific inspection areas and measurement requirements.

Accurate Thermal Measurement

The FLIR A6451 provides radiometric temperature measurement with accuracy dependent on the selected calibration range. Combined with its high thermal sensitivity and cooled detector technology, the camera is capable of detecting subtle temperature variations and capturing thermal events on fast-moving production lines.

Straightforward System Integration

The FLIR A6451 supports GigE Vision and GenICam standards, enabling straightforward integration into industrial automation, machine vision and thermal inspection systems. Radiometric infrared video streaming over Gigabit Ethernet provides thermal data for process monitoring, analysis and automated decision-making.

Selectable Lenses

Choose the lens that best suits your inspection requirements. The FLIR A6451 supports manual-focus MWIR lenses for different fields of view and working distances.

• 13 mm lens (4255676) – Wide-angle option for capturing a larger area
• 17 mm lens (4215423) – Suitable for wider-field thermal imaging
• 25 mm lens (4215425) – A general-purpose option for industrial inspection
• 50 mm lens (4215500) – Narrower field of view for inspecting smaller areas from a given distance

Optional 1× and 3× close-up lenses or microscopes are also supported for applications requiring detailed inspection of smaller targets. All listed lenses operate in the 3–5 µm spectral range. Confirm lens compatibility and the required mounting configuration before ordering.

Selectable Thermographic Calibration

Choose the calibration option required for your temperature measurement application:

• MWIR Thermographic Calibration (CAL35-STD)
• ND0 Thermographic Calibration (CAL35-ND0)
• ND1 Thermographic Calibration (CAL35-ND1)

The appropriate calibration and filter configuration will depend on your required measurement range and application. Radiometric temperature measurement accuracy is dependent on the selected calibration range and operating conditions.

Please note: Select the appropriate lens and calibration for your application. If you are unsure which configuration you need, contact our team for assistance before ordering.

Key Features

• 640 × 512 infrared resolution for detailed thermal imaging
• FLIR MWIR detector with a 3.0–5.0 µm spectral range
• Typical thermal sensitivity of 25 mK for detecting small temperature differences
• Programmable frame rates from 0.0015 Hz to 125 Hz
• Long-life FLIR FL-100 linear cooler rated for 27,000 hours of operation
• Manual-focus lens options: 13 mm, 17 mm, 25 mm and 50 mm
• Optional 1× and 3× close-up lenses or microscopes
• GigE Vision and GenICam support for industrial system integration
• SDI video output with support for 720p and 1080p modes
• Temperature measurement accuracy of ±2°C up to 100°C and ±2% of reading above 100°C
• Multiple mounting points, including 1/4-inch, 3/8"-16 and 10-24 tapped holes
• Selectable MWIR, ND0 and ND1 thermographic calibration options
• Storage for hundreds of calibrations to support different measurement requirements