Category
Stack Dust Emission Monitors
Keep track of dust emissions at the stack and act before limits are exceeded.
A stack dust monitor tracks dust emissions at the stack continuously, so you know where you stand every hour, not only on the day of a manual stack test. The Auburn PM-1Pro measures low-level particulate continuously and meets EPA MACT, NESHAP and Title V/CAM requirements; the PM-1 is a lower-cost alarm-only option. See broken bag detection.
2 Products · Stack Dust loss Monitoring Device
Selection guide
Stack Dust Emission Monitors Guide
Why monitor dust at the stack
A filter that starts to fail doesn't always show up during a scheduled stack test. Continuous monitoring catches the rise in real time, so you can act on a failing filter before it pushes you over your consent-to-operate limit, and keep a running record for your environment team instead of relying on periodic spot checks.
Choosing a stack dust monitor
- Compliance needs: choose the PM-1Pro where you need to demonstrate continuous compliance. It's built to meet EPA MACT, NESHAP and Title V/CAM requirements and international standards such as TÜV and MCERTS. It isn't stated as approved for CPCB or state-board online monitoring; contact us with your site's requirements and we'll confirm what applies.
- Budget and duty: where you mainly need an alarm rather than a logged record, the PM-1 covers that at lower cost.
- Sensitivity: both detect from 0.1 mg/m³, suited to the low dust levels typical after a bag filter, well below what an opacity monitor would reliably read.
- Site details for sizing: stack or duct diameter, flue gas temperature, dust type and the type of dust collector all affect which probe and process connection you need.
- Output: confirm what your DCS or plant historian needs, since the PM-1Pro gives 4 to 20 mA plus relay outputs and can also log locally.
Stack monitoring is common in cement, power, steel and chemical plants. For a general dust trend rather than stack-specific reporting, see Dust Monitors. For bag filter leak alarms, see Broken Bag Detector.
FAQ
Common questions
Is the PM-1Pro approved for CPCB online monitoring?
The PM-1Pro meets EPA and international requirements including MACT, NESHAP, Title V/CAM, TÜV and MCERTS, but no CPCB or state pollution board approval is stated in its datasheet. Contact us with your site's requirements and we'll confirm what applies before you order.
What information do you need to quote a stack dust monitor?
Stack or duct diameter, flue gas temperature, the type of dust, the type of dust collector fitted upstream, and the output your DCS or data logging system needs. That's enough for us to recommend the PM-1 or PM-1Pro and the right probe option.
How is a stack dust monitor different from a broken bag detector?
Often it's the same instrument, used differently. A broken bag detector is set up mainly to alarm as soon as a filter starts leaking. A stack dust monitor is set up, and where needed logged, specifically to keep a continuous emissions record for regulatory or internal reporting.
How sensitive is continuous stack dust monitoring compared to a manual test?
The PM-1Pro resolves down to 0.1 mg/m³ continuously, compared with a manual stack test that gives one reading on one day. That means a slow rise between scheduled tests, which a manual test would miss entirely, shows up on the trend well before it becomes a compliance issue.
Which industries use stack dust monitoring most?
It's most common in cement, power, steel and chemical plants, anywhere a stack is subject to a consent-to-operate dust limit. Continuous monitoring is used both to catch filter failures early and to build the trend record that environment teams need between manual stack tests.
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