Xi 320 MT

The Optris Xi 320 MT is an industrial mid-wavelength infrared camera designed for non-contact thermal imaging. Manufactured in Germany, the camera operates at a spectral wavelength of 3.9 µm and provides a resolution of 320 × 240 pixels. It enables accurate temperature measurement within a range of 475 °C to 1700 °C. The device is specifically configured for applications requiring temperature measurement through flames, including monitoring workpieces in furnaces, measuring within chemical reactors, and observing brick temperatures in combustion chambers.

The Xi 320 MT features high-resolution optics that achieve a distance-to-spot ratio of 550:1 using 11-degree optics, which enables monitoring of small targets from a safe distance. The motorized focus is remotely adjustable, maintaining consistent image sharpness as working distances vary. The camera’s compact, rugged, and IP67-rated housing supports stable operation in demanding industrial environments. It is suitable for permanent installation in production lines or integration into existing monitoring systems, where it supplies continuous and precise temperature data.

The Xi 320 MT employs an uncooled focal plane array detector with a 12 µm pixel pitch, which contributes to a robust and maintenance-free imaging system. In contrast to traditional line-scanner solutions, the two-dimensional detector generates full radiometric thermal images, allowing visualization of temperature distributions and immediate detection of thermal irregularities. These features support applications such as hot-spot detection, process control, and quality assurance in industrial manufacturing and materials processing.

The infrared camera provides connectivity through a fast Ethernet interface supporting 30 Hz frame rates and a USB 2.0 interface operating at 5 Hz. Temperature values can be output directly via an analog channel. All signals are electrically isolated to ensure reliable operation in industrial environments. Power options include 5–30 V DC, Power over Ethernet (PoE), or USB.

The Optris Xi 320 MT is supplied with the PIX Connect software suite, which supports comprehensive thermal analysis, recording, and reporting. The software includes features such as line scanning, image merging, automatic spot detection, and size-of-source effect correction using advanced algorithms. A built-in web server function enables remote monitoring and control of the camera through any standard browser. Software development kits are available for developers and system integrators to embed the camera into custom monitoring or automation platforms.

A range of accessories extends the camera’s functionality in extreme conditions. A water-cooled housing permits operation at ambient temperatures up to 250 °C. An air-purge unit with a protective window maintains optical clarity in dusty environments. Additional accessories include mechanical mounting options, industrial cables, and electrical connectors.

The combination of precise temperature measurement through flames, robust construction, and advanced connectivity positions the Optris Xi 320 MT as a reference device for mid-wavelength infrared imaging in metallurgical, ceramic, and chemical process industries.

Thermography software optris PIX Connect is included and license-free.All infrared cameras are delivered with the thermography software optris PIX Connect, developed specifically for the extensive documentation and analysis of thermal images. The Windows-based PIX Connect software enables users to tailor the infrared cameras to meet specific requirements. It analyses live and recorded temperature data and triggers alarm signals for process integration.The key to leveraging the Optris infrared camera is a correct configuration. This includes detailed device-specific configurations such as frame rate, measurement range adjustments, external communication settings, and USB/Ethernet configurations. Moreover, PIX Connect facilitates firmware updates and the download of configuration files over the Internet. PIX Connect Optris offers several different SDKs for our Xi and PI thermal imaging cameras. Depending on the operating platform, the infrared camera, the coding language, and the hardware platform, different software interfaces can be utilized: SDK The Optris IRmobile allows users to set up and commission an Optris infrared pyrometer or infrared camera with an Android smartphone or tablet. This tool becomes handy for commissioning and aligning the infrared camera‘s field of view or adjusting the configuration. The app analyzes the connected infrared camera‘s live infrared image stream with auto hot and cold spot detection. For pyrometers, a temperature-time diagram or the video signal is displayed. This app works on most Android devices running 5.0+ with a USB port supporting USB-OTG (On The Go). Google Play

Can I trust the temperature measurement of a single pixel?

Due to the diffraction-limited nature of infrared optics, the optical resolution and image quality are physically limited. As the dimensions of the individual pixels are in the same range as the infrared wavelength, users shall ensure that the target is larger than the cameras MFOV.

How do I configure the IP addresses for the Xi 320 MT thermal cameras?

Use the PIXConnect software to configure Ethernet settings.

Does the thermal camera support DHCP in the Ethernet mode?

No, the camera must be assigned to a static IP address.

Do I need software to run the infrared camera?

Yes, the software PIXConnect is necessary.

What is the Xi 320 MT thermal camera used for?

The infrared camera Xi 320 MT is mainly used to monitor workpieces inside furnaces, measure inside chemical reactors or observe the brick wall temperature in combustion chambers.

How do I focus the thermal camera?

The motorized focus can be set with the PIXConnect software. In the PIXConnect software, click on the “distance” button in the toolbar and use the slider.

Where is the Xi 320 MT made, and does it contain memory components sourced from outside the U.S. or the European Union?

The Xi 320 MT is designed, manufactured, and calibrated in Berlin, Germany. Some electronic components may be sourced from outside the EU or the US. Still, it is important to note that the Xi 320 MNT does not store any thermal images or temperature values in non-volatile memory. The Xi 320 MT only stores full thermal images, thermal video (.ravi files), and temperature values in the customer PC hosting the PIX Connect software necessary to operate the camera. The thermal camera uses memory components inside the thermal camera electronics, which may be sourced outside the EU or the US to store a reference picture (also called dark picture) of the non-uniformity correction paddle or flag and some reference temperatures used to correct temperature drift. All these memory elements are deleted when the power to the camera head is terminated.

Can the Xi 320 MT send temperature information from spots or areas to my PLC?

The Xi 320 MT can send temperature information or temperature alarms from the Process Interface connection on the back of the camera. A cable with integrated electronics and a terminal block is included with the camera. It can be programmed in PIX Connect software as an Analog Input (AI) and Digital Input (DI) to control the camera or as an Analog Output (AO) to control the process. The signal level is always 0-10 V (DI = 24V). An optional industrial process interface is also available, delivering up to three independent temperature values or alarms to a user-supplied PLC.

What are the associated product numbers for this product?

OPTXI32MTO11T170, OPTXI32MTO17T170, OPTXI32MTO29T170, OPTXI32MTO41T170

Is your infrared camera long-wave (LWIR) or short-wave (SWIR/MWIR)? What’s the typical frame rate? What’s the IFOV (instantaneous field of view / pixel size)? And does it connect to a PC via USB, or what other platforms/interfaces are supported (e.g., Ethernet, etc.)?

Optris provides different types of IR cameras with different wavelengths. Here you can find an overview of the different camera types regarding the spectral ranges, the typical frame rates and the interface versions (USB or Ethernet (ETH)):
Long-wave (LWIR) cameras (spectral range 8-14 µm):
– PI400i LT (80Hz, switchable to 27 Hz),
– PI450i LT (80Hz, switchable to 27 Hz),
– PI640i LT (32 Hz (640×120 px @ 125 Hz),
– Xi80 LT ETH (50 Hz),
– Xi400 LT USB (80Hz, switchable to 27 Hz),
– Xi410 LT ETH (25 Hz (connected via Ethernet,4 Hz connected via USB),
– Xi640 LT USB (32 Hz)
Long-wave (LWIR) cameras (spectral range 7,9 µm):
– PI450iG7 (80Hz, switchable to 27 Hz),
– PI640iG7 (32 Hz (640×120 px @ 125 Hz)
Middle-wave (MWIR) cameras (spectral range 3,9 µm):
– Xi320MT (30 Hz)
Short-wave (SWIR) cameras:
– PI1M (0,85-1,1µm), 32 Hz (382×268 px @ 80 Hz, (switchable to 27 Hz)/ 72×56 px/ 764×8 px @1 kHz)),
– PI08M (780-820 µm), 32 Hz (382×268 px @ 80 Hz, (switchable to 27 Hz)/ 72×56 px/ 764×8 px @1 kHz)) ,
– PI05M (500-540 µm), 764×480 px @ 32 Hz/ 382×288 px @ 80 Hz (switchable to 27 Hz)/ 72×56 px/ 764×8 px @ 1 kHz,
– Xi1M ETH (0,85-1,1µm), 396×300 px, 20 Hz, 396×8 px (auton.: 396×1 px), 500 Hz, 0,85-1,1 μm, Ethernet, USB 2.0 (only 20 Hz), Auton. operation,
– Xi05M ETH (500-540 µm), 396×300 px, 20 Hz, 396×8 px (auton.: 396×1 px), 500 Hz, 500-540 nm, Ethernet, USB 2.0 (only 20 Hz), Auton. operation
The following digital interface kits are for the Xi 80/ 410/ 05M/ 08M cameras available:
– Ethernet TCP/IP / Modbus TCP interface kit
– EtherNet/IP interface kit
– Profinet kit
You can see the IFOV (instantaneous field of view / pixel size) for your IR camera with the different available optics in the optics calculator on the Optris website: Optris IR Camera Calculator (https://optris.com/optris-calculator/camera/)
Example:

What is the bit depth of our camera?

The bit depth of our cameras is 14 bit. The data has 16 bit but only 14 bit are used for the Temperature Data and the other 2 bits are not used

Can we send the raw ADU data from the camera to another commercial software for processing?

As a rule, we do not disclose any information about raw data. The only option is to use the Connect SDK to output the camera’s ADU values as a matrix. However, these ADU values are uninterpreted. The cameras can send the temperature information and the color information to another commercial software for processing.

Does changing the mode from Temperature to ADU in the Connect SDK change the way that the image is displayed?

No , the way the image is displayed does not change. You can see this in the software examples provided with the PIXConnect software (See the menu HELP => Connect SDK => Examples). Under the configuration menu => External communication => ConnectSDK you can change the mode from “Temperatures” to “ADU”. This has no influence on the displayed image.

Our company designs and supplies camera systems for steelmaking processes and is exploring different camera types. For this application, would you recommend long-range, near-infrared, or short-wave infrared models?

For steelmaking processes we recommend short-wave infrared cameras as the PI 1M camera, PI 08M camera, PI05M camera , Xi1M camera or Xi 05M camera. Use the lowest wavelength / spectral range as possible!

Which Optris infrared cameras support integration with machine learning frameworks? Do they provide raw thermal image data access via SDK/API (e.g., the OTC SDK), allowing developers to apply custom ML models for tasks like segmentation, classification, or predictive thermal analysis?

The IR cameras do not provide any raw thermal image data access. You get the temperature data via the SDK (OTC SDK) from the camera to your process.

Which Optris infrared cameras support integration with machine learning frameworks? Do they provide raw thermal image data access via SDK/API (e.g., the OTC SDK), allowing developers to apply custom ML models for tasks like segmentation, classification, or predictive thermal analysis?

The IR cameras do not provide any raw thermal image data access. You get the temperature data via the SDK (OTC SDK) from the camera to your process.

Which Optris infrared camera is best for measuring temperatures during welding processes?

– The choose of the correct Optris infrared camera depends on the temperature range and the type of the welding process.
– For plastic welding , a PI/Xi LT camera can be used (8-14 µm)
– For metal (e.g. steel applications) a short wavelength camera PI 1M/08M/05M , Xi 1M , Xi05M should
be used (0.85-1.1 µm , 780-820 µm , 500-540 µm)
– For laser welding applications Optris provides IR cameras with a blocking filter.

• Infrared camera Xi 320 MT
• Ethernet / PoE cable (1 m)
• USB cable (1m)
• Cable for output/input (1 m) incl. terminal block
• Mounting bracket with nut
• Software package optris PIX Connect
• Quick Start Guide