CT 1M

Precise temperature measurements are crucial in laboratory environments, especially when employing pyrometers. However, industrial settings pose unique challenges that can affect temperature accuracy. Optris recommends the use of short-wavelength pyrometers due to their insensitivity to emissivity variation and high optical resolution, ensuring consistent performance across real-world conditions, particularly in hot metal processing applications. Engineers should consider wavelength selection alongside calibration accuracy, optics quality, and temperature range to mitigate potential deviations when measuring metallic targets, including emissivity changes, reflections, and misalignment.

The Optris CT 1M pyrometer is meticulously engineered to accurately measure temperatures ranging from 485 °C to 2200 °C (905 °F to 3992 °F). This infrared sensor is available in different variants, each with a specific temperature range: 1ML: 485 °C to 1050 °C (905 °F to 1922 °F), 1MH:  650 °C to 1800 °C (1202 °F to 3272 °F), and 1MH1: 800 °C to 2200 °C (1472 °F to 3992 °F).

With its specialized spectral range of around 1.0 µm, the InGaAs detector ensures accurate temperature measurements in hot applications. The pyrometers compact infrared measuring head allows for easy installation in tight spaces, facilitating cost-effective mechanical integration. This thermal non-contact sensor finds frequent use in hot metal applications such as steel, tungsten, iron, nickel, and semiconductors.

The CT 1M supports a distance-to-spot size ratio of up to 75:1, ensuring precise temperature measurements even from a distance. IR thermometers compact size and temperature resistance of up to 100 °C (212 °F) make it suitable for integration into heavy machinery. Fast processes can be effectively monitored with a rapid response time of just 1 ms.

A significant attribute of such an infrared thermometer is its precise non-contact temperature measurement facilitated by separate electronics. The interface includes easily accessible programming keys and an LCD. The pyrometers stainless steel housing enhances durability and is suitable for varied industrial settings.

The Optris CT 1M series infrared sensor emphasizes adaptability. The electronics box offers a range of analog and digital outputs, including 0/4 – 20 mA, 0 – 5 V, 0 – 10 V, thermocouple (type K or J), USB, RS485, RS232 interfaces, relay outputs (2 x optically isolated), Profibus DP, ProfiNet, and Ethernet, Ethernet/IP. This adaptability ensures seamless integration into machinery, enhancing utility across various applications and providing users with versatility.

Enhance the functionality of the infrared sensor with a range of optional accessories designed to meet diverse industrial needs. The mounting fork ensures secure and stable installation, providing a reliable foundation for continuous temperature monitoring. Utilize the sighting tube for precision targeting and improved accuracy in specific applications. The close-focus lens expands the series’ capabilities by enabling detailed temperature measurements on small or distant objects. The air purge accessory safeguards the temperature sensor from contaminants to maintain the optical path in harsh environments. Additionally, the cooling jackets optimize performance in elevated temperature conditions, ensuring consistent and accurate readings. These optional accessories augment the versatility of the Optris CT 1M series, offering tailored solutions for varied industrial scenarios.

Engineered to withstand even the harshest conditions, the CT 1M pyrometer ensures accurate temperature measurements even in demanding environments. The pyrometers thermal shock-resistant design guarantees consistency despite fluctuations in ambient temperature. The robust stainless steel measuring head simplifies integration into confined spaces, making the infrared sensor suitable for various applications. The pyrometers exceptional temperature resistance allows seamless operation in ambient temperatures up to 100 °C (212 °F) without supplementary cooling, positioning the IR sensor as an optimal solution for high-temperature environments. The CT 1M’s distinctive thermal shock-resistant design guarantees repeatability with ambient temperature changes. Manufactured in Germany to meet high-quality requirements, such thermal sensors thrive in the most challenging conditions. The fixed-mounted design ensures stability and accuracy over extended periods, making the CT 1M an essential tool for critical industrial processes.

Optional accessories enhance the functionality of the infrared sensor, meeting diverse industrial needs. The mounting fork ensures secure and stable installation for continuous temperature monitoring, while the sighting tube improves targeting precision and accuracy. The close-focus lens enables detailed temperature measurements on small or distant objects, and the air purge accessory safeguards the temperature sensor from contaminants in harsh environments. Cooling jackets optimize performance in elevated temperature conditions, ensuring consistent and accurate readings. These optional accessories augment the versatility of the Optris CT 1M series, offering tailored solutions for varied industrial scenarios.

In summary, the Optris CT 1M series pyrometer combines precision, adaptability, and durability to facilitate non-contact temperature measurements. Whether capturing quick manufacturing processes or operating in challenging conditions, the IR pyrometer is a reliable and efficient solution for diverse industrial applications.

The Optris CompactConnect software improves the functionalities of Optris fixed infrared pyrometers, offering various monitoring, analysis, and control features beyond basic temperature measurement. It includes features like visualizing temperature trends with temperature-time diagrams and documentation. The software enables data logging, automatic process controls, parameterization of the pyrometer via configuration settings, and setting up programmable outputs and inputs. Additionally, it provides advanced signal-processing functionalities. Compact 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 CT 1M, the sensing head cable can be shortened by max. 3 m (9.8 ft)

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 0.80. 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 exchange of sensing heads and electronics is possible inside a certain model group. Every head has a specific calibration code, which is printed on the head cable. This calibration code must be stored in the electronic box for correct temperature measurement and sensor functionality.

Can I use the CT 1M as a 2-wire sensor?

Please do not connect a supply voltage to the analog outputs, as this will destroy the output. The CT 1M is not a 2-wire sensor. Please review the CSmicro series, as this is a two-wire sensor.

• CT 1M with 3 m (9.8 ft) cable
• 1x mounting nut
• CT Series Manual