CO₂% Range Gas Analyzer: GPro 500
Tunable Diode Laser for CO₂% Measurement
The GPro 500 carbon dioxide CO2% gas analyzer is a unique tunable diode laser spectrometer designed for measurement of CO2 in a gas stream at high temperatures. It uses a folded-path laser beam design for simple installation and CO2% measurement.
Top Performance in CO2% Measurement
A CO2% analyzer for challenging applications, the GPro 500 provides reliable measurement in FCC units, and PTA, styrene and syngas production.
Low Maintenance and Operating Costs
This CO2% gas analyzer is designed to operate at high temperatures, in situ without a conditioning system, reducing the total cost of ownership.
The GPro 500 is an alignment-free TDL gas analyzer, meaning that the typical challenges of TDL installation and alignment are significantly reduced.
TDL CO2 Gas Sensors Frequently Asked Questions
Why use a TDL sensor for measuring carbon dioxide?
TDLs have many advantages over other CO2 measurement technologies. Firstly, they are installed in situ in the process pipe or vessel so are exposed directly to the gas and therefore measure immediately. Some other analyzers measure a sample of gas that has been extracted and conditioned, which takes time and increases risk. Secondly, TDLs are immune to the presence of other gases in the process and will only measure CO2. Thirdly, they are extremely reliable and require practically zero maintenance.
How can a CO2TDL reduce costs?
Unlike other gas measurement technologies, TDLs have a very low maintenance requirement. Once installed, they will run reliably for many months without needing any maintenance.
Are TDL CO2 analyzers easy to install?
Sometimes. Once the insertion point has been selected it’s a matter of fitting one or two flanges and a temperature and pressure sensor. Most TDLs are of a cross-stack design, meaning that they’re comprised of two parts (laser source and receiver) that sit opposite each other in the pipe or vessel. The two units have to be very carefully aligned which can be problematic. The GPro 500 has both parts installed in the same unit. The laser source is reflected by a three-sided mirror and is directed back to the receiver. Therefore, no alignment is required. Watch our video on easy installation.
In which applications can TDLs be used?
TDLs have a wide range of applications, including process control in direct chlorination and oxy-chlorination; safety monitoring in VCM waste gas recovery; and combustion optimization in package boilers, thermal oxidizers, fired heaters, FCC units, etc. For more information check our Application eBooklet
|Gas Measured||Carbon dioxide (CO₂%)|
|Lower Detection Limit||1000 ppm-v|
|Accuracy||2% of reading or 1000 ppm, whichever is greater|
|Linearity||Better than 1%|
|Drift||Negligible (<2% of measurement range between maintenace intervals)|
|Sampling rate||1 second|
|Response time (T90)||CO₂ in N2 300 ppm-v to 0% in <4 seconds|
|Repeatability||±0.25% of reading or 0.75-v CO2 (whichever is greater)|
|Process pressure range||0.8 bar - 2 bar (abs)/11.6 psi - 29 psi (abs)|
|Process temperature range||0-250 °C (23-482 °F); Optional (for probe installation) 0-600 °C (0-1112 °F) with additional thermal barrier|
|Effective path length||50 mm - 10 m, depending on adaption|
|Meets Critical Application Needs|
This CO2% analyzer is ideal for carbon dioxide measurement and control applications in FCC units, and styrene and syngas manufacturing. These TDL gas analyzers offer a precise, reliable and fast measurement in critical applications, and are SIL 2 compatible.
|Immediate, In Situ Measurement|
The GPro 500 CO2% gas analyzer is installed in situ, so you get a quick response without the need to extract and condition a sample. This offers a reliable and cost-effective alternative to technologies that require extraction and conditioning of gases.
|Designed for Challenging Installations|
The GPro 500 is configurable, enabling the carbon dioxide range spectrometer's measurement system to be paired with a variety of process adaptions to meet a wide range of installation requirements, including pipe diameters from 50 mm to over a meter.
|Predictive Diagnostics Ensure Long Life|
This CO2% gas analyzer uses Intelligent Sensor Management (ISM) technology to offer predictive diagnostics on analyzer condition, including informing you when cleaning of the optical path will be required.