Sample probes for extracting representative samples

Sample probes are designed for extracting a representative portion from the gas sample source in a pipe to the sampling system, and finally the gas analyzers.

Sample gas probes form a critical point between process and sample conditioning and analysis system. They extract sample gas from the process stream and supply it to the analysis system. They should already remove undesirable particulates at the sampling point and avoid cold spots thus preventing false measurements.

Sample probes for sample extraction are an utmost important part of the sampling system. Liquid carryover from the pipeline into the sample system should be prevented when sampling gas as it can directly impact the analysis and damage a gas analyzer.

Industry standards state that the equipment used to remove the liquid from the sample must be operated at flowing temperature and pressure conditions.

In addition it works as a filter, keeping dirt, and unwanted moisture out of the extracted gas sample. A well designed probe for sample extraction, reduces sample times, gets a better response time, reduces sample volume, and eliminates dead volumes.

Factors to take in account when choosing a gas probe for sample extraction:

• Toxic or corrosive components
• Climate conditions
• Accessibility for the field engineers
• Safety conditions

Benefits of a well designed sample probe:

• Reduced sample times
• Better response times
• Reduced sample volume
• Eliminate dead volume

ASaP can provide you a full service package including analyzers, service and system integration. Some of the probes, like the Phazer or the Flare Gas Probe are manufactured by ASaP, an ISO 9001:2015 certified company in the Netherlands.