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How the system works
- Heated glass probe. The sample gas is drawn in through a glass nozzle and a glass probe. The probe and the filter box are heated with a heat gun.
- Particles on a filter. A plane filter of 120 or 47 mm in a glass filter holder catches the particles.
- Cooler and XAD-2. The gas is cooled in a glass cooler with circulating coolant, and the XAD-2 cartridge after the cooler adsorbs the organic compounds.
- No separate condensate. The condensate passes through the XAD-2 cartridge together with the sample gas and does not need to be handled or analysed separately.
- Isokinetic control in real time. With the optional S-type pitot tube on the probe, the gas velocity is measured throughout the sample.
Control units
Both control units regulate the sample flow and measure temperature, pressure and sample volume. They have a built-in condensate separator and a compartment for silica gel for gravimetric moisture determination, and are used with an external pump unit. They can also be used for dust sampling.
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DX11-101ADS-1-DX
Automatic isokinetic control, continuous velocity measurement at the measurement point, logging of all parameters, 7-inch display and USB export. 0–20 l/min for dioxins.
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DX11-102CU-6-DX
Portable and rugged for demanding environments, with manual isokinetic control and reading of the meters. 0–20 l/min for dioxins, 1–6 m3/h for dust.
Accessories
- Probe mount for 2½-inch (DN65) and 3-inch (DN80) sampling ports.
- External pump unit in a transport case, up to 50 l/min, for both the ADS-1-DX and the CU-6-DX.
- Recirculating chiller for the glass cooler and the XAD-2 cartridge.
- Glass nozzles from 2 to 12 mm, also as a complete set.
- Type K thermocouples for the temperature of the stack, the filter holder and the XAD-2 cartridge.
- Transport case for the glass parts, IP67. Can also be custom-built.
- Twin hose of EPDM for the S-type pitot tube, and silicone hose for sample gas and coolant.
Frequently asked questions about dioxin sampling
What can I sample with the system?
Dioxins and furans (PCDD/PCDF) according to EN 1948-1, dioxin-like PCB according to EN 1948-4 and other organic micropollutants.
ADS-1-DX or CU-6-DX?
The ADS-1-DX controls the isokinetic sampling automatically, logs all parameters and is reliable during long samples with varying gas flow. The CU-6-DX is simpler and rugged, with manual control and reading.
Does the condensate need to be analysed separately?
No. The condensate passes through the XAD-2 cartridge together with the sample gas, so it does not need to be handled separately.
Can you measure for us instead?
Yes. We sample dioxins under accreditation, and the analysis is done by an accredited laboratory – see dioxin measurement.