Isokinetic Sample Probes
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The RM&C Measurement Systems design of Particulate Sample Probe gives the best possible flow path for the sampled particulates, offering a smooth, transition and crevice free path through to the collection point. Fully welded using stainless steel components, with a number of mounting/connection options, these probes are the highest quality available and will outperform many lower cost alternatives.
In addition to designing and manufacturing a full range of Isokinetic and Gaseous Sample Probes, we are able to offer Best Practicable Means (BPM) advice to our clients at the design stage, regarding the optimum probe location.
One factor which determines the positioning of the sample probe is the velocity profile. To ensure the positioning of the probes and the sampling pipe-work meets BPM requirements, we often conduct pre-design flow profiling and characterisation studies. Our engineers work closely with AEA Technology, who are the UK’s leading independent authority on aerosol transport modeling, testing and characterisation studies to ensure the:
- BPM position for sampling probes
- BPM position for flow measurement instruments
- Suitability of existing flow profiling and/or characterisation injection points
- Requirements for additional flow profiling and/or characterisation injection points
- BPM position for filters relative to sample probes
- BPM Isokinetic Sample Probe design
- Correct Isokinetic Sample Nozzle Bore
The sample probe can be used in conjunction with one of our fixed range of Continuous Air Monitors, or with a Static Air Sampler (SAS).
Recommended Products
Alpha & Beta Particulate Sampling
If you require Alpha and/or Beta Particulate Sampling Systems, then you need look no further than RM&C Measurement Systems. We have been supporting the UK nuclear industry by supplying regulatory sampling and monitoring systems, related equipment and services to many leading licensed sites.
We are able to supply bespoke solutions at ‘of the shelf prices’. Whether it is a simple wall mount panel or a full floor standing suite of cubicles, Measurement System will engineer the ideal system to meet your needs.
The principle of particulate sampling is simple, extract a known representative sample from a discharge stack or duct onto a collection medium for retrospective laboratory analysis. By measuring the discharge flow you can then calculate the sampling ratio and determine the discharge level.
It is this simplicity that leads many to underestimate the nuances of sampling, forgetting the basic principles. The most important factors in any particulate sampling system are; representative sampling and sampling efficiency.
Often prior to contracts being let, Measurement Systems engage with the client and/or end user to provide consultancy, surveying, extract system performance studies; to ensure that the most appropriate equipment is specified.
Calibration & Test Rigs
RM&C Measurement Systems have designed bespoke Calibration and Test Rigs/Equipment for a number of clients.
One key example:
At AWE there are dozens of statutory sampling systems spread across the site, spanning many different facilities. The health physics, calibration and maintenance support for these systems comes from a variety of sources, some centralized and others facility based. To ensure consistency of service, AWE invested in a Test and Training Sampling System that could be used to train support staff across site.
While not being used for training, the client wanted to be able to test different ventilation duct configurations to gain a better understanding of how Sampling Systems would perform in new or modified ventilation installations.
Measurement Systems provided a solution that comprised a full site standard particulate sampling system and a flexible extract duct section coupled to a fan and variable speed drive set-up.
The duct was made-up of a number of differing length section and interchangeable extract ventilation features, such as dampers, flow straightener, Isokinetic Sample Probe section with a clear viewing window and a set of Isokinetic Sample Nozzles. An injection point was added to the fan inlet which allows particulate/smoke injections and the clear window provides visual feedback as to the profile around the Isokinetic Sample Nozzle.
Another key example:
Another issue in the nuclear industry is the calibration of flow meters and other instrumentation installed into systems where potential contamination is present. In these situations the instruments cannot be simply sent back to the manufacturers or calibration laboratory. Measurement Systems has provided many calibrations rigs to overcome this and other site based problems experienced by our clients. The photograph below shows the inside of a Variable Area (VA) flow meter calibration rig. Able to provide a variety of flows and employing mass flow technology, the rig allows our client to annually calibrate their VA flow meters to nationally traceable standards.
Gaseous Sample Probes
Unlike Isokinetic Particulate Sample Probes, the design and construction of gaseous sample probes is not as exacting; however the RM&C Measurement Systems design of Gaseous Sample Probe follows the same construction techniques. The flow path for the sampled gas offers a smooth transition and crevice free path through to the collection point. Fully welded using stainless steel components, with a number of mounting/connection options, these probes are the highest quality available and will outperform many lower cost alternatives.
In addition to designing and manufacturing a full range of Isokinetic and Gaseous Sample Probes, we are able to offer Best Practicable Means (BPM) advice to our clients at the design stage, regarding the optimum probe location.
UKAS and Traceable Calibration
Roxspur Measurement & Control Ltd is an ISO 9001:2008 company, we offer UKAS and traceable calibration under BS/EN ISO17025 accredited procedures. Our certificate generation systems are purposely geared to meet the strict and specific requirement of the Aerospace industry.
Calibration
Based at our factory in Sheffield our accredited laboratories are available to provide either on-site or in-house calibration to either UKAS or national standards. We cover Temperature (up to 2,200ºC), Pressure (up to 1,200 bar), Flow (up to 2,500 L/min) and Electrical parameters and provide certification using the latest technology.
Our team of experienced on-site engineers hold accreditation for the on-site calibration of equipment including autoclaves, furnaces, thermocouples and probes, scales and balances, ovens and chambers, indicators and controllers, pressure and electrical. We cover the full spectrum of industry sectors. All calibration standards used meet the requirements of Table 3 of AMS 2750D, whether in the laboratory or on site, ensuring full compliance with the specification. To find out more about our on-site services please click here.
We supply thermocouples calibrated and certified to meet the requirements of Table 1 of AMS 2750D appropriate to customer specified usage.
Aerospace Heat Treatment Specialists
From the supply of a single thermocouple to fully managed service contracts, by working in partnership with our customers we can assist in obtaining and maintaining NADCAP approval. To find out more about our specialist aerospace services please click here.
Certification
Certificates generated are designed to meet the requirements of AMS 2750D with the option of UKAS certificates for added peace of mind.
Alpha & Beta Particulate Sampling
If you require Alpha and/or Beta Particulate Sampling Systems, then you need look no further than RM&C Measurement Systems. We have been supporting the UK nuclear industry by supplying regulatory sampling and monitoring systems, related equipment and services to many leading licensed sites. We are able to supply bespoke solutions at ‘of the shelf prices’. Whether it is a simple wall mount panel or a full floor standing suite of cubicles, Measurement System will engineer the ideal system to meet your needs.
The principle of particulate sampling is simple, extract a known representative sample from a discharge stack or duct onto a collection medium for retrospective laboratory analysis. By measuring the discharge flow you can then calculate the sampling ratio and determine the discharge level.
It is this simplicity that leads many to underestimate the nuances of sampling, forgetting the basic principles. The most important factors in any particulate sampling system are; representative sampling and sampling efficiency.
Often prior to contracts being let, Measurement Systems engage with the client and/or end user to provide consultancy, surveying, extract system performance studies; to ensure that the most appropriate equipment is specified.
Calibration & Test Rigs
RM&C Measurement Systems have designed bespoke Calibration and Test Rigs/Equipment for a number of clients.One key example:
At AWE there are dozens of statutory sampling systems spread across the site, spanning many different facilities. The health physics, calibration and maintenance support for these systems comes from a variety of sources, some centralized and others facility based. To ensure consistency of service, AWE invested in a Test and Training Sampling System that could be used to train support staff across site.
While not being used for training, the client wanted to be able to test different ventilation duct configurations to gain a better understanding of how Sampling Systems would perform in new or modified ventilation installations.
Measurement Systems provided a solution that comprised a full site standard particulate sampling system and a flexible extract duct section coupled to a fan and variable speed drive set-up.
The duct was made-up of a number of differing length section and interchangeable extract ventilation features, such as dampers, flow straightener, Isokinetic Sample Probe section with a clear viewing window and a set of Isokinetic Sample Nozzles. An injection point was added to the fan inlet which allows particulate/smoke injections and the clear window provides visual feedback as to the profile around the Isokinetic Sample Nozzle.
Another key example:
Another issue in the nuclear industry is the calibration of flow meters and other instrumentation installed into systems where potential contamination is present. In these situations the instruments cannot be simply sent back to the manufacturers or calibration laboratory. Measurement Systems has provided many calibrations rigs to overcome this and other site based problems experienced by our clients. The photograph below shows the inside of a Variable Area (VA) flow meter calibration rig. Able to provide a variety of flows and employing mass flow technology, the rig allows our client to annually calibrate their VA flow meters to nationally traceable standards.
Gaseous Sample Probes
Unlike Isokinetic Particulate Sample Probes, the design and construction of gaseous sample probes is not as exacting; however the RM&C Measurement Systems design of Gaseous Sample Probe follows the same construction techniques. The flow path for the sampled gas offers a smooth transition and crevice free path through to the collection point. Fully welded using stainless steel components, with a number of mounting/connection options, these probes are the highest quality available and will outperform many lower cost alternatives.In addition to designing and manufacturing a full range of Isokinetic and Gaseous Sample Probes, we are able to offer Best Practicable Means (BPM) advice to our clients at the design stage, regarding the optimum probe location.
UKAS and Traceable Calibration
Roxspur Measurement & Control Ltd is an ISO 9001:2008 company, we offer UKAS and traceable calibration under BS/EN ISO17025 accredited procedures. Our certificate generation systems are purposely geared to meet the strict and specific requirement of the Aerospace industry.Calibration
Based at our factory in Sheffield our accredited laboratories are available to provide either on-site or in-house calibration to either UKAS or national standards. We cover Temperature (up to 2,200ºC), Pressure (up to 1,200 bar), Flow (up to 2,500 L/min) and Electrical parameters and provide certification using the latest technology.
Our team of experienced on-site engineers hold accreditation for the on-site calibration of equipment including autoclaves, furnaces, thermocouples and probes, scales and balances, ovens and chambers, indicators and controllers, pressure and electrical. We cover the full spectrum of industry sectors. All calibration standards used meet the requirements of Table 3 of AMS 2750D, whether in the laboratory or on site, ensuring full compliance with the specification. To find out more about our on-site services please click here.
We supply thermocouples calibrated and certified to meet the requirements of Table 1 of AMS 2750D appropriate to customer specified usage.
Aerospace Heat Treatment Specialists
From the supply of a single thermocouple to fully managed service contracts, by working in partnership with our customers we can assist in obtaining and maintaining NADCAP approval. To find out more about our specialist aerospace services please click here.
Certification
Certificates generated are designed to meet the requirements of AMS 2750D with the option of UKAS certificates for added peace of mind.

