METTLER TOLEDO's GPro 500 Series Tunable Diode Laser Gas Sensor

The use of Tunable Diode Laser (TDL) gas sensors is becoming more and more common in industrial processes. This is because they measure directly in the process gas stream without drift or cross-interference and are far more economical to purchase, install and maintain than other gas analyzer types. TDLs use a measurement technology called absorption spectroscopy: they output a beam of laser light at the same frequency that the gas to be measured absorbs light. The TDL analyzes the light after it has passed through the gas stream and calculates the quantity of the target gas in the stream.

Most TDLs are comprised of two parts: the laser source unit and a receiving/analyzing unit. These parts must be installed directly opposite each other, which is not always easy and misaligned can often occur. METTLER TOLEDO's GPro 500 Series solves this by combining both parts in a single unit. A probe attached to the GPro 500 sensor protrudes into the gas stream. A three-sided mirror at the end of the probe directs the beam back through the probe to the receiver, so alignment is always perfect.

The series is available with a wide range of different probes and adaptions that allow the GPro 500 to be placed wherever required in a process. These include: 

• a probe with a filter to prevent dust ingress
• a wafer probe for narrow (2") pipes
• an extractive cell for use with sampling and conditioning systems
• a White cell for trace level detection

Using a modular design, the GPro 500 tunable diode laser gas analyzer allows you to select the process adaption that fits your application, and match it with the parameter that you need to measure. We offer sensors that measure  a variety of gases including Carbon Dioxide (CO₂), Carbon Monoxide (CO), Hydrogen Chloride (HCl), Hydrogen Sulfide (H₂S), Moisture, Ammonia (NH₃), Methane (CH₄) and Oxygen (O₂). 

The GPro 500 does not require maintenance-prone extractive and conditioning systems. This means that you receive consistent performance from your tunable diode laser gas analyzer without the downtime and cost associated with these traditional systems. You achieve reliable uptime, critical in safety applications, at a reduced cost of ownership.

For more information on METTLER TOLEDO Gas Analysis, contact Alliance Technical Sales.

630-321-9646

https://alliancets.com

Innovative Solutions to Difficult Paper Mill Level Application

Magnetic Level Gauges and Magnetostrictive Level Transmitters for Black Liquor Chemi-Washer in Paper Mill

Black liquor is a waste product found in paper mills from the processes used to break pulp wood down into usable fibers. Many different methods are used to wash black liquor from the fibers before they are sent to the paper / cardboard making sections of the mill, one of which is a black liquor Chemi-Washer. The Chemi-Washer consists of a train of eight washes used to clean black liquor off of the paper fibers. The waste liquid gets progressively cleaner through each section of the train. DP transmitters are traditionally used to measure level in each section of the washer.
Jogler, a leading manufacturer of industrial level instrumentation offers a case study on successfully handling this application.

Visit this page to download the full application case study.

Real-Time Bioburden Monitoring in Pharmaceutical Water with the Mettler Toledo 7000RMS

Have you ever experienced microbial contamination that led to an out-of-spec event, water system quarantine, or product recall even though you perform routine testing? How much time and cost did it take investigate or undo this damage? Even with false positive results, it’s often too late.

The water loop has to be sanitized, rinsed, retested and the affected product may be a total loss.

While plate counting is a regulatory requirement, there are inherent risks and delays that can greatly impact the accuracy of test results. Let’s take a look at these risks.

• No matter how careful you are, contamination can still occur at any stage of sampling. 
• Waiting 5-7 days to get results causes you to use “at risk" water without knowing the microbiological quality. 
• A sample you take now could yield very different results than a sample taken minutes or hours later.
• Sampling too infrequently can also cause you to miss an excursion. 
• You can only count what will culture and colonies you can actually see. 
• Such variables and limitations can mislead your assessment of the water quality. 

What if you could reduce these risks with a complementary test method? Instead of capturing snapshots that are a week old with sampling, you could have full visibility of your process with continuous, real-time monitoring. When used in parallel with plate counting, the Mettler Toledo 7000RMS real-time microbial detection analyzer can help you react quickly to any trend or excursion before it becomes an event. Giving you complete process transparency for minimized risk and real-time water release.

The Mettler Toledo 7000RMS advanced laser-induced fluorescence technology provides a direct cell count of microorganisms present in pharma-grade waters. Overcoming limitations of growth-based laboratory methods that are an estimation of microbial presence and dependent on time and incubation conditions.

Counts microorganisms from as small as 0.50 microns and accepts direct input line temperatures of up to 90ºC. The Mettler Toledo 7000RMS delivers 24/7 monitoring of water treatment, storage tanks, distribution loops, points-of-use and clean-in-place processes.

Applications: Continuous monitoring of PW, WFI and UPW

• Distribution loops
• Sub loops
• Point-of-Use
• Return loops
• Recirculating storage tanks
• Grab samples
• Post purification before storage
• Sampling points

For more information, contact Alliance Technical Sales, Inc.
https://alliancets.com
(630) 321-9646