MARIETTA, GA – 06/2012 – The GPro 500 TDL Series is designed for challenging oxygen applications. The series is well suited to demanding applications where accuracy and fast response are crucial despite a varying background gas composition and a high dust load. The unique probe design enables easier installation, uses much less purge gas and requires no tedious alignment of flanges. This, combined with the folded path, allows for installation in pipes as small as DN 100 or NPS 4.

Laser Technology for Interference-free Measurement
An oxygen sensor that provides faster measurement and more accurate data is always going to be of interest to the chemical industry. If it also has a significantly lower cost of ownership compared with other systems, it makes it a very attractive proposition.

METTLER TOLEDO’s GPro 500 represents a leap forward in oxygen sensors. Packed with state-of-the-art technology it offers exceptional measuring performance and easy installation, and requires little or no maintenance.

Tunable Diode Laser (TDL) gas analyzers are a significant improvement over extractive analysis systems. Firstly, no sample extraction or conditioning is necessary. Secondly, they are immune to interference from moisture, dust or background gases. And thirdly, drift is extremely low.

The Best of Both Worlds
METTLER TOLEDO has combined TDL technology with our expertise in industrial application analytical instrument design, to create a probe that delivers the convenience of an in-line sensor and the level of measurement confidence of a topline analyzer. Other TDL gas solutions are of a crossstack design, meaning that the receiver must be positioned directly opposite the laser source. This causes installation difficulties and requires regular, troublesome realignment. The GPro 500 incorporates a probe that reflects the laser beam back to the receiver in the sensor head, therefore alignment is never required. And because the laser beam travels twice through the gas stream, the optical path length is doubled, resulting in more accurate O2 measurement.

Built-In Intelligence
METTLER TOLEDO’s Intelligent Sensor Management (ISM) technology adds to the features of the GPro 500 by incorporating predictive diagnostics that continually assess the optical path quality and indicate when cleaning is required, before measurements are affected. Other than yearly verification and occasional cleaning of the optics, no other maintenance is required. The GPro 500 can be left to provide real-time, continuous, accurate O2 measurements, assuring you of operational safety at all times.

The GPro 500 is the ideal choice for oxygen monitoring in process and safety applications.

Outstanding features include:

• Interference-free in-situ measurement technology

• Easy calibration without interrupting the process

• 12 month recommended verification interval

• Different probe insertion lengths to suit applications with all types of geometry, including DN 100 pipes

• Large selection of materials for the wetted part

• Easy installation with either one flange or, in short path setups, a perpendicular two flange design

• No pre-alignment of flanges required

• Approval for hazardous areas (ATEX zone 1, FM Class 1 Div 2) pending