Fixed Stationary Thermal Imagers

LWIR-640 Fixed Thermal Imaging Camera

The LAND LWIR-640 is a long-wavelength (LWIR 8 to 14 μm) fixed thermal imaging camera that provides a full temperature measurement range of -20 to 1500 °C (-4 to 2732 °F) in four ranges, with a choice of different optics and lenses. It measures and streams live true-temperature images at up to 60 frames per second, delivering high-precision temperature measurements and thermal profiles to continuously control, document and visualise industrial processes.

Building on more than 20 years of LAND thermal imaging experience, the LWIR-640 addresses growing demands for improved product quality and efficiency, energy saving, predictive maintenance and emission reduction across modern industrial processing.

Overview +

LWIR-640 AT A GLANCE

SPECIFICATION	DETAIL
Waveband	Long-wavelength LWIR, 8 to 14 μm spectral response
Full temperature range	-20 to 1500 °C / -4 to 2732 °F
Four measurement ranges	-20 to 120 °C; 0 to 500 °C; 100 to 1000 °C; 150 to 1500 °C
Pixel resolution	640 x 480 pixels
Frame rate	HF: 60 Hz* / LF: 7.5 Hz
Optics (FOV)	50°x37°, 25°x19°, 12°x9°, 6°x4°
Interfacing	Gbit-Ethernet / PoE
I/O options	3x analogue/digital I/O
Smart functions	Integrated webserver
Hazardous area compliance	EX d enclosure available

*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.

BUILT FOR INDUSTRIAL THERMAL IMAGING

Designed for use in harsh industrial and environmental conditions, the LWIR-640’s smart, Industry 4.0 capabilities, bi-directional digital interfaces and on-board I/O provide reliable, robust, real-time thermographic measurement and imagery in industrial processes.

ADVANCED IMAGE RESOLUTION

A pixel resolution of 640 x 480 and high thermal resolution delivers clear and detailed thermal images and videos at up to 60 Hz frame rate. This image quality supports highly accurate process visualisation and control — resolving fine temperature detail that point measurement would miss.

HOW DOES THE INTEGRATED WEBSERVER SUPPORT AUTONOMOUS OPERATION?

An integrated webserver with multiple I/O options means the LWIR-640 can be used autonomously or easily integrated into new or existing process control systems. The webserver provides easy camera access, control and setup using a standard browser — so you can view live thermal images, configure the camera and manage measurements without additional software. When deeper analysis is needed, the camera streams to LAND’s software for full process control.

INNOVATIVE SOFTWARE ANALYSIS WITH IMAGEPRO

Advanced ImagePro image and data-processing software offers real-time analysis of thermal images, giving users an exceptional level of understanding and control of their process. It also enables monitoring and configuration of up to 16 imagers from a single system.

WHERE IS THE LAND LWIR-640 USED?

The LWIR-640 is LAND’s smart long-wavelength thermal imaging solution for a wide range of industrial applications, making it a versatile fixed thermal imaging camera for both process control and safety monitoring. Typical applications include:

Automation, process control and machine vision
Flare stack monitoring and hot spot detection
Critical vessel refractory monitoring
Petrochemical processing
Food and mineral processing
Medical applications

Specifications +

IMAGER UNIT
Measurement Range:			-20-120 °C / -4-248 °F 0-500 °C / 32-932 °F 100-1000 °C / 212-1832 °F 150-1500 °C / 302-2732 °F
Pixel Resolution:			640 x 480
Pixel Size / Pitch:			17 μm
Spectral Response:			8 to 14 μm
Max Frame Rate:			HF: 60 Hz* / LF: 7.5 Hz
Detector:			Uncooled Microbolometer
Optic (HFOV x VFOV):			50° x 37° / 25° x 19° / 12° x 9° / 6° x 4° 6° x 4° lens available with 0 to 500 °C and 100 to 1000 °C ranges only
Focus Range:			0.3 m to infinity (motorised focus) – (25° & 50°) 0.75 m to infinity (motorised focus) – (12°) 10 m to infinity (motorised focus) – (6°)
Accuracy:			1.5% or 2 °C of reading
Noise:			0.5 °C / 0.9 °F RMS
NETD:			40 mK (@ 20 °C) (-20 to 120 °C) 7.5 Hz
Dimensions:			80 x 80 x 222 mm (max) / 3.14 x 3.14 x 8.7 in (including lens)
Power Rating:			12 to 24 V DC, +/-10% 12W / IEEE 802.3 at PoE+
Weight:			1.6 kg / 3.5 lbs
Ambient Temperature:			-20 to 60 °C / -4 to 140 °F (0 - 95 % humidity, non-condensing)
Environmental Rating:			IP65/ NEMA 4
Vibration:			Sinusoidal vibration: 3g-pk at 300 Hz. Random vibration endurance: overall GRMS 2.95 10-300 Hz. Tested in accordance with BS EN 60068 standards
Compliance:			EMC (EN 61326-1)
CONNECTIVITY AND SERVICES
Digital Connections:			M12 X coded 8way connector: 10/100/1000 Ethernet & IEEE 802.3 at PoE+
Analog Connections:			8 pin binder connector: 2pins - 12-24V DC Power Input 6 pins Functions can be assigned to internal image processing algorithms 1 x 4 -20mA output 1 x 4 -20mA output OR relay output 1 x 4 -20mA input OR digital input OR relay output Camera Web Browser for alignment & internal image processing analog I/O setup
Signal-LED:			Visible on rear of camera instrument 3 x LED - Power / Status, Ethernet Comms & Camera internal temperature
Service:			Water, instrument air for cooling and window purging using optional enclosures
SMART FUNCTIONALITY
Integrated Webserver:			Remote access via Gbit ethernet interface Integrated webserver provides live thermal image
Autonomous Operation:			3 ROI’s and configuration of integrated I/O’s for full autonomous operation
THERMAL IMAGING PSU MODULE
Components & Connections:			Power supply, Gbit Ethernet communications (switch)/ IEEE 802.3 at PoE+, Fibre optic data connection
Environmental Rating:			IP66 / NEMA 4
Size:			380 x 380 x 211 mm / 15 x 15 x 8.3 in
Weight:			15 kg / 33.07 lbs
IMAGE PROCESSING
Integrated Webserver:			Integrated webserver accessible via standard web browser
Software:			IMAGEPro, IMAGEPro Application Specific (e.g Asset Monitor)
Workstation:			PC-Worksation (option)
Interfacing:			Open Data Interface, Modbus TCP, Moxa I/O unit
STANDARD ACCESSORIES
Accessories (optional):			Thermal Imaging PSU Modules (UL Approved), Process Imager Power Supply, Industrial Housing Assembly and Purge, Light Housing with Purge, Cables, Brackets, Blower System, Software and Workstation
AIR QUALITY
Particles > 1 µm diameter:			< 1000 /m³
Water:			< 500 mg/m³
Oil:			< 1 mg/m³

*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.

Field of View (FOV) +

Optic

2.5m

10m

15m

HFOV x VFOV

Width

Height

FOV
(centre)

Width

Height

FOV
(centre)

Width

Height

FOV
(centre)

Width

Height

FOV
(centre)

Width

Height

FOV
(centre)

6° x 4°

1.0 m

0.7 m

1.6 mm

1.6 m

1.0 m

2.5 mm

12° x 9°

0.22 m

0.16 m

0.3 mm

0.55 m

0.39 m

0.9 mm

1.1 m

0.8 m

1.7 mm

2.2 m

1.6 m

3.4 mm

3.3 m

2.40 m

5.1 mm

25° x 19°

0.44 m

0.33 m

0.7 mm

1.11 m

0.84 m

1.7 mm

2.2 m

1.7 m

3.5 mm

4.4 m

3.3 m

6.9 mm

6.7 m

5.00 m

10.4 mm

50° x 37°

0.93 m

0.69 m

1.5 mm

2.33 m

1.67 m

3.6 mm

4.7 m

3.3 m

7.3 mm

9.3 m

6.7 m

14.6 mm

14.0 m

10.0 m

21.9 mm

Frequently Asked Questions +

Question	Answer
What is an LWIR camera?	An LWIR (Long-Wave Infrared) camera operates in the 8–14 µm wavelength band, which is optimal for measuring lower-temperature targets that don't radiate strongly at shorter wavelengths. Unlike single-point pyrometers, the LAND LWIR-640 captures a complete 640 × 480 pixel thermal image—over 307,000 measurement points—allowing you to see temperature distribution across an entire scene. This makes it ideal for monitoring ambient to moderate-temperature processes from -20°C to 1,500°C.
LWIR vs MWIR vs SWIR — what's the difference?	The three infrared bands serve different temperature ranges: SWIR (Short-Wave, ~1.6 µm) is best for very high temperatures like molten metal above 1,500°C; MWIR (Mid-Wave, ~3.9 µm) covers mid-range industrial processes from 300°C to 1,800°C and sees through smoke and combustion gases; LWIR (Long-Wave, 8–14 µm) excels at ambient and lower temperatures from -20°C to around 1,500°C. Selecting the correct waveband ensures accurate readings—using the wrong band can result in significant measurement errors.
What is the resolution of the LWIR-640?	The LWIR-640 features 640 × 480 pixel resolution (307,200 measurement points), providing detailed thermal imaging across the entire field of view. It operates at 60 frames per second for real-time monitoring and offers a ±1°C or ±1% accuracy specification. The high resolution combined with LAND's advanced ImagePro software enables precise analysis of temperature uniformity, hot spot detection and process trending.
Can it stream over Ethernet?	Yes—the LWIR-640 streams over Gigabit Ethernet (GigE) with Power over Ethernet (PoE) support, simplifying installation to a single cable for both power and data. It integrates directly with LAND's ImagePro software and standard SCADA/DCS systems via Modbus TCP or OPC interfaces. The IP66/NEMA 4 rating ensures reliable operation in industrial environments, while the integrated webserver allows browser-based configuration and monitoring.
What is its temperature range?	The LWIR-640 measures from -20°C to 1,500°C using multiple selectable sub-ranges that can be optimized for your specific application temperature window. Standard ranges include -20°C to 120°C, 0°C to 500°C and 200°C to 1,500°C. By selecting a narrower range matched to your process, you maximize measurement resolution and accuracy within that window—a key advantage for quality-critical applications.
What is the smallest object whose temperature the LWIR can measure accurately?	In general, an accurate temperature measurement requires an area of 3 x 3 pixels, a total of 9 pixels. The size of this object depends on the LWIR’s angle of view and the distance of the object. The minimum object size is approximately where θ is the LWIR’s horizontal field of view and L is the distance between LWIR and the object being measured. For example, if an LWIR with 25° x 19° lens is positioned 5000 mm from and object, the minimum measurable detail will be
Do I need to buy the ImagePro software package?	LWIR has a built-in web browser that allows the user to view thermal images and perform simple analyses, such as measuring the peak temperature in a region of interest and output the value on a 4-20 mA interface, or to produce an alarm if the temperature drops below a certain value. These functions are sufficient for many applications. Where greater flexibility and processing power are needed, ImagePro is a powerful, flexible PC-based image processing package which allows the user to perform and display detailed analyses of the data produced by LWIR.
Can I install LWIR outdoors?	LWIR is weatherproof to IP66 and NEMA 4 and is rated for operation between -20 and +60 °C so it can safely be installed outdoors. However its operation can be affected by dirt or water drops on the lens, so it is usually best to install it inside the light industrial housing which provides additional protection, including a purged window and a sunshield.
Can I install LWIR in hazardous areas?	LWIR is weatherproof to IP66 and NEMA 4 so it can safely be installed outdoors. However its operation flameproof housing is specifically designed to accommodate the LWIR imager. It has a gridless widow which gives a clear and unobstructed view, and has approvals for Zones 1 and 21 (flammable gases) as well as Zones 2 and 22 (flammable dusts).
What I/O is available?	The LWIR imager itself has a variety of inputs and outputs. High-speed Ethernet Webserver showing live data and basic image processing Modbus TCP/IP for measured and derived data Configurable analogue signals: 4-20 mA output Selectable: 4-20 mA output or relay Selectable: 4-20 mA input, digital input or relay A wide range of additional I/O modules can be connected to the ImagePro PC-based image processing software.

Temperature Range +

Optic (HFOV x VFOV)	-20 - 120 °C (-4 - 248 °F)	0 - 500 °C (32 - 932 °F)	100 - 1000 °C (212 - 1832 °F)	150 - 1500 °C (302 - 2732 °F)
6° x 4°	-	Yes	Yes	-
12° x 9°	-	Yes	Yes	Yes
25° x 19°	Yes	Yes	Yes	Yes
50° x 37°	Yes	Yes	Yes	Yes

Documentation +

Software +
- ImagePro V2
  
  The innovative ImagePro V2 software is an advanced Image Processing Software for controlling, monitoring, analysing and capturing imager data.
  
  Keep Reading
Video +
- LWIR-640 System Setup Overview
  
  Learn about the power supply, PCU and PSB set up options available for the LWIR-640.

Related Applications +
- Annealing Lehr Entry and Exit
  
  The lehr must be sufficiently heated to prevent cracking or stress points in the glass. The LWIR-640 measures the cooling product at each end of this process to detect problems.
  
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- Batch Inlet
  
  Measurement at the batch inlet provides thermal monitoring of the glass raw materials for quality control. We recommend the LWIR-640 thermal imager or RT8 thermometer for this application.
  
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- Melt Tank - Outside
  
  An LWIR-640 thermal imager is recommended for continuous monitoring of the melt tank exterior. This monitors the tank condition, providing warnings of possible glass break-out or refractory failure.
  
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- Gasifier
  
  Monitoring temperatures in the gasifier requires a non-contact measurement from a high-precision device able to cope with the high ambient temperature. The LWIR-640 thermal imager is ideal for this task.
  
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- Gasifier
  
  A non-contact measurement from a high-precision device is required to monitor temperatures in the gasifier. AMETEK Land’s LWIR-640 thermal imager is an ideal solution for the high ambient temperatures involved.
  
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- Critical Piping
  
  Piping is used to carry substances around the refinery or plant, and is subject to varying temperature conditions. The LWIR-640 provides a reliable thermal monitoring solution, even in hazardous areas.
  
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- Refining Pet Coke
  
  Storage of pet coke carries the risk of combustion. Continuous monitoring is required to prevent waste and ensure safety. The LWIR-640 thermal imager is our recommended solution for this process.
  
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- Gasifier
  
  A high-precision device robust enough to operate in high ambient temperatures can provide the non-contact measurements required to monitor temperatures in the gasifier. AMETEK Land recommends the LWIR-640 thermal imager.
  
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- Sulphur Piles
  
  Because of their size and typically outdoor location, sulphur piles provide a challenge when it comes to thermal imaging. AMETEK Land recommends the LWIR-640 imager for safety monitoring in this application.
  
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- Coal Storage
  
  Coal stored prior to use in the mill presents a fire risk. Our recommended solution is the LWIR-640 thermal imager, which identifies hot spots in the coal pile.
  
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- Pile Monitoring
  
  Coal and Biomass are often stored in large piles which present a fire risk. AMETEK Land’s LWIR-640 thermal imager is our recommended solution to monitor large fuel storage piles for hot spots.
  
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- Storage Silo
  
  Early detection of spontaneous combustion in stored coal or biomass is vital to prevent uncontrolled fires. We recommend the dedicated Silowatch carbon monoxide (CO) monitor and LWIR-640 thermal imager for this safety application.
  
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- Ladle
  
  Ladles transport the molten metal but the refractory linings deteriorate over time which can lead to potential breakouts. The LWIR-640 and FTI-E-based Ladle Refractory Monitoring System can detect refractory damage at an early stage.
  
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- Sinter
  
  When iron ore deposits in the form of sinter are used for steel production, it is essential to monitor for homogenous sintering throughout the cake. The LWIR-640 thermal imager is our recommended solution.
  
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