CTi LT

The Optris CTi LT series pyrometers feature one of the smallest infrared sensing heads in the world and have a high optical resolution of up to 22:1. They use a thermopile as a detector and operate within a spectral bandwidth of 8-14µm, making them excellent for measuring high-emissivity targets, even at low object temperatures, in fixed installations.

These pyrometers come with a separate control box that offers flexibility with selectable analog outputs and various digital interfaces. This design is particularly advantageous for applications in high-temperature environments. The sturdy construction allows the sensing heads to withstand temperatures up to 180 °C without additional cooling, which makes them suitable for high-temperature settings.

The Optris CTi LT series sets a standard for non-contact temperature measurement by focusing on precision and speed. Their two-piece design includes one of the smallest infrared sensors available, a notable optical resolution of up to 22:1, and a rapid exposure time of as low as 115 ms for 90% energy. These features are optimized for efficient monitoring in fast-paced manufacturing across different industries. The wide temperature range of -50 °C to 1050 °C makes them ideal for non-reflective objects.

These pyrometers excel in temperature resistance, allowing them to operate in ambient temperatures up to 180 °C without extra cooling. Their unique design is resistant to thermal shock, ensuring consistent performance even with changes in ambient temperature. This design meets high-quality standards, as they are engineered and manufactured in Germany.

Made for fixed installation, the Optris CTi LT series offers a reliable solution for continuous temperature monitoring. The precise non-contact temperature measurements are supported by separate electronics, easy-to-access programming keys, and an LCD interface, ensuring stability and accuracy over long periods in various industrial environments.

The versatility of the Optris CTi LT series is highlighted by the range of analog and digital outputs available from the electronics box. These include a built-in USB-C interface, 0/4 – 20 mA, 0 – 5 V, 0 – 10 V, Thermocouple (Type K), USB, RS485, RS232, relay outputs (2 x optically isolated), Modbus RTU, Modbus TCP, Profinet, and EtherNet/IP. This range allows for easy integration into different machinery, improving functionality across a variety of applications.

Optional accessories designed for different industrial needs expand the infrared sensor’s capabilities. The mounting fork provides secure installation, while the sighting tube increases targeting and accuracy. The close-focus lens allows for detailed temperature measurements of small or distant objects, and the air purge accessory protects the temperature sensor from contaminants in harsh conditions.

In summary, the Optris CTi LT series pyrometers deliver precision, versatility, and durability, making them effective for non-contact temperature measurements across different industrial applications. They offer reliability and efficiency in challenging conditions.

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?

Not changing the sensing cable length is recommended, as the cable’s impedance is part of the sensor calibration. However, in all CTi LT models, the sensing head cable can be shortened if necessary. Shortening the cable will cause an additional measuring error of about 0,1 K/m.

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

The size of the measuring object and the infrared thermometer’s optical resolution determine the maximum distance between the sensing head and the object. To prevent measuring errors, the object should fill 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 must be selected when an external close-focus lens is used?

The optional CF lens allows the measurement of small objects. If the CF lens is used, the <a href=”/lexicon/transmissivity/”>transmission</a> has to be set to 0.78. The assigned transmission (average value) is a characteristic value that may exhibit some scattering. If required, the transmission has to be determined experimentally.

How can I increase the sensor’s noise amplitude?

In the CTi LT 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.

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. Each head has a specific calibration code printed on its cable. This calibration code must be stored in the electronic box to ensure accurate temperature measurement and sensor functionality.

Can I use the CTi LT as a 2-wire sensor?

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

Is the CTi LT pyrometer Series head vacuum-compatible?

Yes, the CTi LT pyrometer heads are also vacuum-compatible.

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 via an RS-485 interface. You can connect the first pyrometer to the PC via the provided RS-485/USB adapter.

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