Fiber Optic ATR Probes

Near & Mid IR-fiber ATR Probes can be used in any type of FT-NIR, FT-IR, and other IR-spectrometers, photometers and IR-LED or QCL spectral sensors. ATR immersion fiber optic probes are suitable for reaction monitoring in a lab, pilot plant and for fully automated process control.


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Key Features

● High throughput in any part of near and mid infrared-spectrum

● ATR tip shaped for immersion in the liquid flow without dead zone

● Flexible and robust for industrial applications in harsh environment

● Compatible with all spectrometers and automated process-interfaces


Probe typeDiamond ATRZnSe ATRSilicon ATRCubic Zirconium ATR
Transmission5.2-17μm (600-1900cm1)3.2-17μm (600-3100cm -1) +5.2-17μm (600- 3100cm -1)1.5-6.5μm (1550- 650cm1)
Fiber typePIR-900/1000 Silver HalidePIR-900/1000 Silver HalidePIR-900/1000 Silver HalideCIR 500/550 Chalcogenide glass (As-S)
Temperature range-100°C / + 140°C-100°C / + 140°C-100°C / +140°C-100°C /+ 90°C
Pressure (max)200 Bar (300 Bar) on request10 Bar100 Bar100 Bar


Common Parameters of Fiber Optic ATR Probes FlexiSpec®

Total Length1.5 m (opt.:1m to 5m)*
Shaft Length300 mm (opt.: 100-700 mm)*
Shaft Diameter12 mm, 6.3 mm (opt.: 3 mm)
Shaft MaterialHastelloy C22
Length of Legs500 mm (opt. 200 – 500 mm)
Protective Tube MaterialLiquid Tight SS-Conduit, KOPEX-Tube
Minimal Bending Radius130 mm
Input / Output ConnectorsLong SMA (opt.: any other type)
Compatible Process-InterfacesCeramat-FOS or SensoGate-FOS**

*Customized dimensions are available on request

**Available for 12 mm shafts only