Two-piece Industrial Infrared Pyrometer for low temperature Metal applications with Laser Sighting, 50 °C to 1800 °C

The Optris CTlaser 3M is a high precision infrared thermometer designed for measuring low temperature metals and composite materials. It offers a temperature range of 50 °C to 1800 °C, a fast 1 ms response time, and accurate measurement of small targets down to 0.7 mm. Its two-piece design with separate electronics provides advanced signal processing and flexible installation.

Featuring a short wavelength InGaAs detector (2.3 μm), the CTlaser 3M reduces emissivity related measurement errors for reliable readings on metals, metal oxides, and ceramics. The series includes models 3ML (50–800 °C), 3MH (385–1600 °C), and 3MH1 (490–1800 °C), with double laser aiming for precise target alignment.

The CTlaser 3M supports multiple outputs including 0/4–20 mA, 0–5 V, 0–10 V, USB, RS485, RS232, Modbus, Profibus, Profinet, and EtherNet/IP for easy system integration. With optional accessories, calibration to PTB/NIST standards, and operation in ambient temperatures up to 85 °C, it provides a reliable solution for demanding industrial applications. 

• Temperature range (scalable via programming keys or software): 50 ... 400 °C (3ML) 100 ... 600 °C (3MH) 150 ... 1000 °C (3MH1) 200 ... 1500 °C (3MH2) 250 ... 1800 °C (3MH3)
• Ambient temperature: –20 ... 85 °C (sensing head, 50 °C with laser ON), –20 ... 85 °C (electronics)
• Spectral range: 2.3 μm
• Optical resolution (90 % energy): 60:1 (3ML) 100:1 (3MH) 300:1 (3MH1 – 3MH3)
• System accuracy (at ambient temp. 23 ±5 °C): ±(0.3 % of reading +2 °C)
• Temperature resolution: 0.1 K
• Response time (90 % signal): 1 ms
• Emissivity / Gain (Via programming keys or software): 100 – 1.100
• Transmissivity / Gain (Via programming keys or software): 100 – 1.100
• Signal processing (parameter adjustable via software): peak hold, valley hold, average, extended hold function with threshold and hysteresis
• Output / analog: 0 / 4 – 20 mA, 0 – 5/ 10 V, thermocouple J, K
• Output / alarm: 24 V / 50 mA (open collector)
• Relay outputs (optional): Relay: 2 x 60 V DC/ 42 V ACeff; 0.4 A; optically isolated
• Output/ digital: USB, RS232, RS485, CAN, Profibus DP, Ethernet(optional)
• Output impedances: mA max. 500 Ω (with 8 – 36 V DC)mV min, 100 kΩ load impedance, thermocouple 20 Ω
• Inputs: Programmable functional inputs for external emissivity adjustment, ambient temperature compensation, trigger (reset of hold functions)
• Software: optris® Compact Connect
• Cable length: 3 m, 8 m, 15 m
• Power supply: 8 – 36 V DC
• Laser 635 nm: 1 mW, ON/OFF via electronic box or software

Scope of supply:

• CTlaser 3M with 3m cable
• 1x mounting nut
• 1x mounting bracket

Supplier link:

https://optris.com/products/infrared-thermometers-pyrometers/ctlaser-series/ctlaser-3m/