Fixed Borescope Thermal Imagers

MWIR-b-640

Q: What is the MWIR-b-640 and what is it used for?

The LAND MWIR-b-640 is a fully radiometric mid-wave infrared borescope imaging camera that looks inside furnaces, boilers and incinerators to measure temperature across the entire scene—over 307,000 accurate measurement points (640 × 480 pixels) in a single image. Unlike visual or near-IR cameras blinded by smoke and combustion gases, the MWIR-b-640's 3.9 µm spectral filtering provides a clear thermal view through heavy smoke and hot furnace atmospheres for continuous furnace profiling, tube monitoring and combustion optimization.

Q: What temperature range and resolution does the MWIR-b-640 cover?

The MWIR-b-640 offers two measurement ranges: 300-1,200°C (572-2,192°F) and 500-1,800°C (932-3,272°F), covering applications from moderate-temperature boilers to hot reheat and reforming furnaces. Accuracy is ±1% of reading or ±5°C (whichever is greater) for the lower range and ±1% for the higher range. The 640 × 480 pixel detector operates at up to 60 fps with Gigabit Ethernet connectivity, delivering real-time thermal data for continuous furnace optimization via IMAGEPro software.

Q: Why use an MWIR camera instead of NIR or LWIR for furnaces?

The 3.9 µm MWIR wavelength is critical for seeing through furnace atmospheres. Combustion processes using dirty fuels produce smoke, particulates and luminous flames that blind visible, near-IR (NIR) and long-wave IR (LWIR) cameras. The mid-wave IR band cuts through these obscurants, delivering clear thermal images operators need for safe, efficient furnace management. This wavelength advantage is why MWIR borescopes are the standard for furnace thermal imaging in demanding industrial environments.

Q: Which furnaces and processes is the MWIR-b-640 best suited to?

The MWIR-b-640 is the preferred solution for steam methane reformers, reheat furnaces, biomass and coal-fired boilers, cement kilns, waste incinerators, heat treatment and annealing furnaces, and ethylene cracking furnaces. Anywhere combustion atmospheres, dirty fuels or heavy particulates create visibility challenges, the MWIR-b-640 delivers the clear thermal images and accurate temperature data that operators need for process optimization, efficiency improvement and predictive maintenance.

Q: How is the MWIR-b-640 protected from the heat, and what happens if cooling fails?

LAND offers integrated water and air cooling options built into the borescope housing. Water cooling provides maximum thermal protection for high-temperature applications, while air cooling suits moderate environments where water supply is impractical. An auto-retraction system automatically withdraws the borescope if cooling fails, water flow drops, air pressure is lost, power is interrupted, or tip temperature exceeds safe limits—protecting your investment and ensuring continuous operation without operator intervention.

Q: What software and connectivity does the MWIR-b-640 use?

The MWIR-b-640 integrates with LAND's IMAGEPro advanced image processing software for control, monitoring, analysis and long-term data capture. It connects via Gigabit Ethernet/PoE (with fiber-optic option) plus Open Data Interface, Modbus TCP/IP and configurable I/O modules. The patented background reflection compensation algorithm corrects for furnace wall reflections in real-time. Long-term trending enables early detection of tube leaks, refractory degradation and temperature variations for predictive maintenance.

The LAND MWIR-b-640 is a highly accurate, fully radiometric infrared borescope imaging camera with advanced spectral filtering, designed for continuous temperature measurement and furnace profiling. It provides a continuous, clear view even through heavy smoke and hot furnace atmospheres — something that is difficult or impossible for conventional visual camera systems, making it ideal for furnaces, boilers and incinerators using dirty fuels. Highly accurate, fully radiometric temperature-measurement image data can be taken, stored and trended over the lifetime of the furnace or boiler, giving operators a lasting record for optimisation and predictive maintenance.

Overview +

MWIR-Borescope-640: 24/7 FULLY-RADIOMETRIC AND HIGHLY ACCURATE

MWIR-Borescope-640: 24/7 OPERATION AND REMOTE PROCESS MONITORING

MWIR-Borescope-640: BACKGROUND COMPENSATION

MWIR-Borescope-640: ADVANCED SPECTRAL FILTERING

MWIR-b-640 AT A GLANCE

SPECIFICATION	DETAIL
Temperature band	Mid-temperature: 300-1800 °C / 572-3272 °F
Wavelength	Mid-wavelength (MWIR) 3.9 μm
Measurement ranges	300-1200 °C / 572-2192 °F and 500-1800 °C / 932-3272 °F
Spectral response	3.9 μm
Pixel resolution	640 x 480 pixels (more than 300,000 accurate point temperatures)
Frame rate	60 fps / 7.5 fps
Optics (FOV)	90° x 67.5° wide-angle field of view
Interfacing	Gbit-Ethernet / PoE
I/O options	I/O modules and digital interfacing via ImagePro
Smart functions	Integrated webserver

60 Hz instruments are subject to different export restrictions in different authorities and countries around the world. All sales must be subject to export licence review.

HOW DOES IT KEEP A CLEAR VIEW INSIDE A DIRTY FURNACE?

Combustion atmospheres using dirty fuels require advanced spectral filtering and high resolution to deliver clear live images from within a furnace, boiler or incinerator. Working in the mid-wave infrared range, the MWIR-b-640’s advanced spectral filtering enables a clear view through dusty, smoky and hot furnace atmospheres that would defeat a visual camera.

Operators get a clear view of the critical areas within the furnace or boiler, with more than 300,000 accurate point temperatures measured in the range of 300-1200 °C (572-2192 °F) and 500-1800 °C (932-3272 °F). Hot and cold areas, and any uneven heating, can be identified in real time from the safety of the control room. The high-resolution image, combined with the wide-angle 90° field of view, allows multiple areas to be imaged and measured simultaneously.

KEY CAPABILITIES AND BENEFITS

Advanced spectral filtering: a clear view through dusty/smoky and hot furnace atmospheres, working in the mid-wave infrared range.
High-temperature measurement accuracy: optimum furnace and boiler control through enhanced process thermal imaging.
Advanced image processing software: control, monitor, analyse and capture data from the thermal imaging camera with ImagePro.
Real-time thermal data with a high-resolution, low-noise visual image: true real-time furnace optimisation and the chance to improve energy efficiency without degrading furnace/boiler lifetime.
Safe 24/7 monitoring: accurate, reliable data from a safe remote position, without risk to operators.

ADVANCED IMAGEPRO SOFTWARE AND DATA TRENDING

The advanced ImagePro thermal imaging and data-processing software supports long-term data trending and enables the early detection of leaks and temperature variations to help optimise processes. Providing advanced digital communications via ImagePro software, the performance of the furnace or boiler can be monitored to easily identify hot and cold areas, with any uneven heating viewed in real time from the control room.

HOW DOES IT IMPROVE SAFETY AND DATA ACCURACY?

The LAND MWIR-b-640 uses proven thermal imaging technology to accurately and continuously profile the temperatures within the furnace or boiler. This improves data accuracy through automation and minimises risk to personnel by reducing the need for people to be in the hazardous area around the furnace or boiler. As a thermal imaging borescope, it is an invaluable tool for optimising production throughput, reducing energy consumption and extending boiler or furnace campaign life.

IDEAL APPLICATIONS

The LAND MWIR-b-640 is ideal for applications including:

MWIR-B-640 WINDOW REPLACEMENT VIDEO

Specifications +

CAMERA UNIT & HOUSING
Measurement Range:	300-1200 °C / 572-2192 °F 500-1800 °C / 932-3272 °F
Pixel Resolution:	640 x 480
Spectral Response:	3.9 μm
Frame Rate:	60 fps* / 7.5 fps
Detector:	FPA - Microbolometer
Optic (HFOV x VFOV):	90 ° x 67.5 °
Optic (IFOV):	2.4 mrad (90 °)
Focus Range:	1 m to infinity
Probe Diameter:	Ø 61mm / Ø 2.4”
Probe Lengths:	305, 609 or 914 mm (12”, 24” or 36”)
Mountings:	Choice of 3” ANSI 150 RF Flange & Gasket or PN16 DN80 Flange & Gasket with a 12” standpipe
Protection Window:	Sapphire
Accuracy:	1% of reading (°C)^#
Noise:	0.5 °C / 0.9 °F RMS
Repeatability:	1 °C^†
Dimensions:	314 x 460 x 765 mm (or 1070 mm or 1374 mm) 12” x 18” x 30” (or 42” or 54”)
Power Supply:	11 V to 26 V, Max Power 12 W
Weight:	< 25 kg (for 609 mm / 24” version)
Cooling/Purging Options:	Water cooling / Air purging
Ambient Temperature:	-20 to 60 °C
Environmental Rating:	IP65
CAMERA SUPPLY
Connections:	Digital data over 1 GBit Ethernet (M12, 8 pin) Power (8 pin)
Alarm Functions:	Tip temperature, internal camera temperature, image max. temperature
Signal-LED:	Power, Ethernet, Tip-Temperature (green/yellow/red)
Service:	Water, instrument air and power input
POWER SUPPLY UNIT (PSU)
Components & Connections:	Power supply, Ethernet communications (switch) Fibre optic data connection (option)
FCB - Environmental Rating:	IP65 / NEMA 4
Size:	380 x 380 x 211 mm / 15” x 15” x 8.3”
Weight:	15 kg (33.07 lbs)
IMAGE PROCESSING
Software:	IMAGEPro Advanced Image Processing and Controlling Software
Workstation:	PC-Workstation (option)
Interfacing:	Open Data Interface, Modbus TCP, Moxa I/O unit
STANDARD ACCESSORIES
Accessories (optional):	Power supply, cables, water-cooled/purged mounting and tube, software, workstation, auto- retraction system

*60Hz instruments are subject to different export restrictions in different authorities and countries around the world. All sales must be subject to export licence review.
^#1% or +/- 5 °C for 300-1200 °C range
^†< 50 °C ambient

Frequently Asked Questions +

Question	Answer
What is the MWIR-b-640 and what is it used for?	The LAND MWIR-b-640 is a fully radiometric mid-wave infrared borescope imaging camera that looks inside furnaces, boilers and incinerators to measure temperature across the entire scene—over 307,000 accurate measurement points (640 × 480 pixels) in a single image. Unlike visual or near-IR cameras blinded by smoke and combustion gases, the MWIR-b-640's 3.9 µm spectral filtering provides a clear thermal view through heavy smoke and hot furnace atmospheres for continuous furnace profiling, tube monitoring and combustion optimization.
What temperature range and resolution does the MWIR-b-640 cover?	The MWIR-b-640 offers two measurement ranges: 300-1,200°C (572-2,192°F) and 500-1,800°C (932-3,272°F), covering applications from moderate-temperature boilers to hot reheat and reforming furnaces. Accuracy is ±1% of reading or ±5°C (whichever is greater) for the lower range and ±1% for the higher range. The 640 × 480 pixel detector operates at up to 60 fps with Gigabit Ethernet connectivity, delivering real-time thermal data for continuous furnace optimization via ImagePro software.
Why use an MWIR camera instead of NIR or LWIR for furnaces?	The 3.9 µm MWIR wavelength is critical for seeing through furnace atmospheres. Combustion processes using dirty fuels produce smoke, particulates and luminous flames that blind visible, near-IR (NIR) and long-wave IR (LWIR) cameras. The mid-wave IR band cuts through these obscurants, delivering clear thermal images operators need for safe, efficient furnace management. This wavelength advantage is why MWIR borescopes are the standard for furnace thermal imaging in demanding industrial environments.
Which furnaces and processes is the MWIR-b-640 best suited to?	The MWIR-b-640 is the preferred solution for steam methane reformers, reheat furnaces, biomass and coal-fired boilers, cement kilns, waste incinerators, heat treatment and annealing furnaces, and ethylene cracking furnaces. Anywhere combustion atmospheres, dirty fuels or heavy particulates create visibility challenges, the MWIR-b-640 delivers the clear thermal images and accurate temperature data that operators need for process optimization, efficiency improvement and predictive maintenance.
How is the MWIR-b-640 protected from the heat, and what happens if cooling fails?	LAND offers integrated water and air cooling options built into the borescope housing. Water cooling provides maximum thermal protection for high-temperature applications, while air cooling suits moderate environments where water supply is impractical. An auto-retraction system automatically withdraws the borescope if cooling fails, water flow drops, air pressure is lost, power is interrupted, or tip temperature exceeds safe limits—protecting your investment and ensuring continuous operation without operator intervention.
What software and connectivity does the MWIR-b-640 use?	The MWIR-b-640 integrates with LAND's ImagePro advanced image processing software for control, monitoring, analysis and long-term data capture. It connects via Gigabit Ethernet/PoE (with fiber-optic option) plus Open Data Interface, Modbus TCP/IP and configurable I/O modules. The patented background reflection compensation algorithm corrects for furnace wall reflections in real-time. Long-term trending enables early detection of tube leaks, refractory degradation and temperature variations for predictive maintenance.

Field of View (IFOV) +

Distance

10m

15m

20m

Width

Height

FOV
(Centre)

Width

Height

FOV
(Centre)

Width

Height

FOV
(Centre)

Width

Height

FOV
(Centre)

Width

Height

FOV
(Centre)

90° x 67.5°

2.0 m

1.3 m

2.5 mm

10.0 m

6.7 m

12.3 mm

20.0 m

13.4 m

24.5 mm

30.0 m

20.1 m

36.9 mm

40.0 m

26.7 m

49.1 mm

Software +
- ImagePro V2
  
  The innovative ImagePro V2 software is an advanced Image Processing Software for controlling, monitoring, analysing and capturing imager data.
  
  Keep Reading
- ImagerSDK
  
  ImagerSDK - A software development kit for use with our thermal imagers including LWIR-640, SDS-640, NIR-656/-2K, NIR-B-640, NIR-B-656/-2K and MWIR-B-640*.
  
  Keep Reading

Documentation +

Related Applications +
- Fired Heaters
  
  Temperature monitoring of fired heaters keeps fuel costs low and reduces harmful emissions. The Cyclops 390L, MWIR-B-640 and NIR-B 3XR deliver portable and fixed solutions for this application.
  
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- Burning Zone
  
  Monitoring the temperatures within the burning zone is vital for quality and efficiency. We recommend the MWIR-B-640 thermal imager and SPOT R100 thermometer for this application.
  
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- Reheat Furnace
  
  The reheat furnace heats cold billets, blooms or slabs of steel to the correct temperature for rolling, which requires careful thermal control. Solutions: MWIR-B-640,NIR-B or SPOT.
  
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- Biomass/Furnace Operation
  
  Efficiently burning biomass pellets in a boiler or furnace is the key stage of power generation. Our solutions include MWIR-B-640, NIR-B, Lancom 200 and CDA.
  
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- Boiler/Furnace Operation
  
  Efficiently burning coal in a boiler or furnace is the key stage of power generation. Our solutions include MWIR-B-640, NIR-B, Lancom 4 and CDA.
  
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- Annealing
  
  Metals are heated and cooled in a planned thermal trajectory to achieve specific characteristics. We recommend the SPOT+, and MWIR-B-640 solutions for this application.
  
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