optris CSvision R1M — High-Temperature Ratio Thermometer with Video Sighting

The Optris CSvision R1M is a two-color pyrometer for precise, non-contact temperature measurement between 550 °C and 3500 °C. Its key advantage is the two-color measurement principle (ratio pyrometer), which delivers reliable, repeatable values even under difficult conditions – including unknown or fluctuating emissivity, partial coverage of the measurement field, fast-moving targets, or interference from dust, steam, or dirty viewing windows. Measurements remain reliable with up to 95% attenuation in the optical path. Practical features simplify handling: motorized focusing (from 350 mm or 200 mm) with an optical resolution of up to 150:1 enables sharp measurements at variable distances. Precise targeting is achieved thanks to video detection and laser crosshairs. An integrated brightness filter makes it easier to focus on bright objects. The robust device is characterized by high accuracy (±0.5% + 2 °C) and excellent repeatability (±0.3%). It is widely connectable with analog and digital interfaces (e.g., 4-20 mA, USB, RS485, Ethernet TCP, Modbus TCP, EtherNet/IP, Profinet) and operates reliably in environments from -20 °C to 65 °C. The CSvision R1M series, manufactured in Germany, is therefore an ideal solution for demanding temperature control in industries such as metal processing or semiconductor manufacturing.
Two-Color Infrared Measurement
Video and Laser Sighting with BRF Technology
Temperature range: 550 °C to 3500 °C
Spectral range: 0.8 - 1.1 µm
Response time: down to 1 ms

The Optris CSvision R1M two-color pyrometer stands out for its ability to deliver consistent and repeatable results. Unlike single-color pyrometers, which rely solely on intensity measurements, the CSvision R1M utilizes a ratio-based approach, measuring infrared radiation at two closely spaced wavelengths. This method provides unparalleled accuracy, particularly as temperatures rise and an object’s emitted radiation increases across the wavelength range.

One key advantage of the CSvision R1M is its reliability in adverse conditions. Unlike single-color devices, this pyrometer can provide accurate results even when emissivity is unknown or changes with temperature. This is especially beneficial when the measuring spot is partially on the object or when the object is smaller than the pyrometer spot size.

The two-color measurement principle of the CSvision R1M ensures repeatable and accurate measurements under varying conditions, offering resistance to dust, smoke, steam, and dirty observation windows. The infrared sensor remains reliable even with up to 95 percent attenuation caused by changing transmissions in the optical path. Additionally, this approach allows precise temperature measurements when the object is not fully placed on the pyrometer spot or is in rapid motion.

The CS Vision series’ innovative video sighting and crosshair laser make aligning the sensor easy. The CSvision R1M also features motorized focus capability, allowing for adjustable focusing from 350 mm to infinity in the standard focus version and 200mm to 400mm in the close focus version. This flexibility makes the pyrometer suitable for various applications, enabling users to focus on targets at various distances.

The CSvision R1M offers a wide temperature measurement range from 550 °C to 3500 °C, with superior optical resolution up to 150:1. The infrared thermometers’ internal motorized focus enables contactless measurements from variable distances. Moreover, the device’s system accuracy, measured at an ambient temperature of 23 ± 5 °C, is highly precise, with a deviation of only ±(0.5% of the reading + 2 °C), ensuring reliable temperature measurements even in demanding industrial environments.

With flexibility in temperature ranges and various analog and digital outputs, including 2x 0/4 – 20 mA, 0 – 5 V, 0 – 10 V, USB, RS485, Modbus TCP, Profinet, and EtherNet/IP, the CSvision R1M is adaptable to diverse industrial settings. The rugged design of the infrared pyrometers and German manufacturing ensure durability and accuracy, making it an ideal tool for critical temperature control in industries like metal and semiconductor manufacturing. The Optris CSvision R1M sets a high standard for excellence in non-contact temperature sensing technology.