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Why ADS-1
- Automatic isokinetic control. ADS-1 adjusts the sample flow continuously so that the velocity in the nozzle follows the gas velocity in the duct, even when the flow varies.
- The flow is measured at the sampling point. With the ESS-P probe system the gas velocity is measured continuously at the same point as the sample is taken, as EN 13284-1 requires.
- Moisture content for every sub-sample. The condensate separator and the desiccant are weighed before and after the sample, and ADS-1 calculates the moisture content gravimetrically.
- From measurement data to report. All values are logged and exported by USB to an Excel template that produces a finished report in a few steps.
- Built for the field. A sturdy case with a folding handle, a large 7-inch display and clear buttons that can be used with gloves on.
Technical data
| ADS-1 | Value |
|---|---|
| Display | 7-inch LCD, 800 × 480 |
| Memory | 32 GB (more than 1,000 hours of sampling) |
| Data transfer | USB 2.0 |
| Gas flow | 0.5–6 m3/h, resolution 0.1 m3/h |
| Gas volume | Resolution 0.1 l |
| Differential pressure | Accuracy ±0.125 % FS, linearity and hysteresis < ±1 % FS |
| Temperature | −200 to 1,200 °C, resolution 0.1 °C, accuracy ±0.5 °C |
| Barometer | 300–1,200 hPa |
| Vacuum gauge | 0 to −1 bar |
| Power supply | 230 V AC, 50/60 Hz |
| Start-up time | About 30 seconds |
| Operating temperature | −10 to 40 °C (storage −20 to 50 °C) |
| Dimensions (D × W × H) | 32 × 39.5 × 42.5 cm |
| Weight | 15 kg; pump unit 6 m3/h 16 kg |
Probes and nozzles
The ESS probe system comes in lengths from 500 to 3,000 mm (other lengths on request) in stainless steel or titanium. ESS-P has an additional pitot tube for simultaneous velocity measurement at the sampling point. The probe can be heated with our power regulator when the flue gas is wet.
The nozzles are null-type nozzles for simple and exact isokinetic control and are delivered calibrated, in 4, 6, 8, 10, 12, 15 and 20 mm. The straight probe head fits sampling ports from 3 inches (DN80), the bent one sampling ports from 2 inches (DN50). The filter holder can sit in the duct or outside it.
Filters and filter holders
Choose the filter holder according to the emission limit value the plant is checked against. The filters sit in cassettes that are loaded before sampling and weighed in and out as a whole in a transport box. That reduces the risk of contamination and of losing a sample. The cassettes are stainless steel, or titanium when the filter is to be analysed for metals.
| Filter holder | Filter | Emission limit value | Position |
|---|---|---|---|
| FH-P47 | Plane filter 47 mm | Below 10–50 mg/m3 | In or outside the duct |
| FH-1x90 | Plane filter 90 mm | 10–100 mg/m3 | Outside the duct |
| FH-2x90 | 2 plane filters 90 mm | 10–500 mg/m3 | Outside the duct |
Glass fibre or quartz?
Glass fibre filters are by far the cheapest and work very well when the dust and the gas are inert. Quartz filters withstand high temperatures and acids such as HF and SO3 without breaking down, and so suit waste incineration, for example.
For extremely high dust concentrations, for example in raw gas upstream of a filter, there are filter holders for two 142 mm plane filters and a cyclone that mounts on the probe.
Accessories
- Hoses and cables twin or triple hose for differential pressure, vacuum hose and type K compensating cable in 5–25 m, or everything gathered in one flexible “umbilical”.
- Heating: the P-REG 200 power regulator for the probe, an insulating hood and a heat gun for the filter holder.
- Pump unit 6 m3/h in a transport box.
- Moisture determination: desiccant with indicator, mesh bags and a field balance.
- Mounting: folding probe stand and probe mount for sampling ports of 2–4 inches.
- Impactor that splits the dust sample into fractions, for example PM10 and PM2.5.
- Rinse kit for the probe, and IP65 cases for filter holders, nozzles and tools.
Manual control units
If you want a simpler unit with manual control, there are also the CU-6 (1–6 m3/h, article number DU11-101) and CU-10 (1–10 m3/h, DU11-103) control units. They are used with the same probes, nozzles and filter holders.
Would you rather we measure, or learn to do it yourself?
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ServiceAccredited dust measurement
We measure dust according to EN 13284-1 under Swedac accreditation throughout Sweden.
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Course · METLAB AcademyDust sampling and gas flow measurement
Two days of theory and field exercises with our measurement engineers.
Frequently asked questions about the ADS-1
Which filter holder should I choose?
That depends on the emission limit value: 47 mm when the limit value is below 10–50 mg/m3, 90 mm for 10–100 mg/m3 and double 90 mm for 10–500 mg/m3. For extremely high concentrations there are filter holders for two 142 mm filters.
Can I measure PM10 and PM2.5?
Yes. With the impactor accessory the dust sample is split into fractions, for example PM10 and PM2.5.
Can I sample dioxins or metals with the same equipment?
For dioxins there is the ADS-1-DX, which handles both dust and dioxin sampling – see Dioxin sampling. For metals in dust there are probes and filter cassettes in titanium, and an outlet adapter with up to four Swagelok connections for parallel wet chemical sampling.
How do I produce the report?
Export the measurement data by USB and open the file in our Excel template, which produces a finished report in a few steps.
Can you calibrate the equipment?
The nozzles are delivered calibrated. We calibrate pitot tubes and gas meters under Swedac accreditation, including other manufacturers'.