CTi 3M

The Optris CTi 3M provides a reliable solution for non-contact temperature measurement, delivering high accuracy in low-temperature environments and demonstrating enhanced performance for thermally challenging materials, particularly in metal processing applications. Engineered to operate consistently in demanding industrial settings, this IR thermometer covers a wide temperature range from 30 °C to 1850 °C.

At the core of the Optris CT 3M lies an extended InGaAs detector operating at a wavelength of 2.3 μm, enabling precise temperature measurements of metals, secondary metal processing, metal oxides, and ceramic materials. With a temperature ranges from 30 °C to 1850 °C and exposure times as short as 110 μs, the Optris CTi 3M delivers exceptional accuracy and speed. The pyrometers short-wavelength spectral sensitivity minimizes measurement deviations resulting from changing emissivity, ensuring reliable performance across various materials and environments.

Designed to adapt seamlessly to various temperature requirements, the Optris CTi 3M offers versatility for industrial settings. Whether utilizing the 3MXL model for temperatures between 30 °C to 350 °C or the 3MH2 model reaching up to 1500 °C, the systems offers an option to meet most temperature requirements, providing a reliable and adaptable solution for diverse industrial needs.

With a distance-to-spot size ratio supporting up to 75:1, the CTi 3M ensures precise temperature measurements even from a distance. The infrared sensors compact size makes it suitable for integration into heavy machinery, while its rapid response time of only 320 μs enables the monitoring of fast processes, offering quick and accurate measurements in industrial environments with low cycle times.

Featuring a two-piece sensor design comprising a measuring head and a separate electronic box, the Optris CTi 3M prioritizes accuracy and versatility. The electronic box simplifies device configuration and offers various interface options, including analog and digital outputs such as 0/4 – 20 mA, 0 – 5 V, 0 – 10 V, thermocouple (type K), USB, RS485, RS232 interfaces, relay outputs (2 x optically isolated), Modbus RTU, Modbus TCP, Ethernet TCP/IP, EtherNet/IP and Profinet

The Optris CTi 3M enables precise and reliable temperature measurement across a range of environments, including laboratory, industrial, and field applications. The pyrometers compact sensing head, measuring 14 mm in diameter and 28 mm in length, withstands ambient temperatures of up to 85 °C without additional cooling.

Optional accessories further enhance the functionality of the infrared sensor, catering to diverse industrial needs. The mounting fork ensures secure and stable installation for continuous temperature monitoring, while the sighting tube enhances targeting precision and accuracy. The close-focus lens allows for detailed temperature measurements on small or distant objects, and the air purge accessory protects the temperature sensor from contaminants in harsh environments. These optional accessories expand the versatility of the Optris CTi 3M series, providing tailored solutions for various industrial scenarios.

The Optris CompactPlus Connect software is a comprehensive tool for temperature measurement and analysis in industrial and research environments utilizing Optris infrared pyrometers. It provides a user-friendly interface facilitating smooth communication with Optris pyrometers.Enhancing the capabilities of Optris fixed infrared pyrometers, the CompactPlus Connect software extends beyond basic temperature measurement, offering various monitoring, analysis, and control features. These include visualizing temperature trends with temperature-time diagrams and documentation. Notably, it enables advanced data analysis, data logging, automatic process controls, parameterization of the pyrometer via configuration settings, and programming of outputs and inputs. Additionally, it offers advanced signal-processing functionalities.Overall, the Optris CompactPlus Connect software offers a robust solution for thermal measurement applications, providing versatility, efficiency, and ease of use for professionals in diverse industries. CompactPlus Connect The Optris IR mobile 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 cameras field of view or adjusting the configuration. The app analyzes the connected infrared cameras 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 shorten the cable between the sensor head and the electronics box?

On the model CTi 3M, the sensing head cable can be shortened by max. 3 m

What distance-to-spot size ratio is correct for the application?

The measuring object’s size and the infrared thermometers optical resolution determine the maximum distance between the sensing head and the measuring object. To prevent measuring errors, the object should fill out the optics field of view. Consequently, the spot should always be at least the same size as the object or should be smaller than that.

Which changes have to be selected if an external close-focus lens is used?

The optional CF lens allows the measurement of small objects. If the CF lens is used, the transmission has to be set to 0,92. The assigned transmission (average value) is a characteristic value that may have a certain scattering. If required, the transmission has to be determined experimentally.

How can I improve the noise amplitude of the sensor?

In the CT models, the head cable must not be moved during the measurement. Use shielded cables only. The sensor shield has to be grounded. Avoid ground loops and related signal interferences in industrial environments. It might be necessary to interrupt the ground connections inside the electronics box. To do this, switch the jumper inside the electronics box to another position. Review the manual.

How do I exchange the sensor head?

From the factory side, the sensing head has already been connected to the electronics and the calibration code has been entered. Any sensing heads and electronics exchange is possible inside a certain model group. Every head has a specific Head ID, which is printed on the head cable and engraved on the sensing head. This calibration code must be stored in the electronic box for correct temperature measurement and sensor functionality.

Can you connect two pyrometers to the same computer?

Yes, this is possible. For using the software CompactPlusConnect or CompactConnect (depends on which type of pyrometers you are using) you have to create different instances of the software. You can connect two pyrometers via the USB ports. It is also possible to connect the two pyrometers with a RS485 interface. You can connect the first pyrometer via the provided RS485-USB adapter to the PC.

• CTi 3M with selectable head cable length
• 1.5 m USB-C cable + USB-A adapter
• Quick start guide