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Tag Articles : Opacity Monitor

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  12 Ways to Maximise Efficiency and US EPA Compliance with LAND’s Opacity Monitor

  Wednesday, May 15, 2024 | Derek Stuart

  Products

  In the dynamic realm of industrial operations, precision and compliance stand as pillars of success. Navigating the intricate maze of environmental regulations demands cutting-edge instrumentation that not only meets stringent standards but also enhances operational efficiency.

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  Why Does My Opacity Monitor Read Negative, and What Can I Do About It?

  Tuesday, March 12, 2024 | Derek Stuart

  Products

  Everyone knows that the opacity of a flue gas mixture cannot be negative, but opacity monitors still show negative readings. This article will explain the causes of the readings and some possible solutions.

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  Can I Measure Opacity When I Have Water in my Flue Gas?

  Wednesday, November 15, 2023 | Derek Stuart

  Products

  One of the most common questions I receive from customers is, “What effect does water have on my opacity reading?”.

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  What is an Opacity Monitor’s Installation Pathlength, and Why is it Important?

  Monday, September 11, 2023 | Derek Stuart

  Products

  The AMETEK Land 4500 MkIII must be configured for the precise pathlength of the place where it will be installed. This blog explains why this is important, and what the various pathlength terms mean.

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  Do I Need to Include Fail-safe Shutters on my Opacity Installation?

  Thursday, July 13, 2023 | Derek Stuart

  Application Products

  The 4500 MkIII is AMETEK Land’s class-leading opacity monitor, used to measure emissions of dust and other particles in combustion processes. It has a very flexible design which allows it to be configured to match the customer’s needs and budget. One of the most useful accessories is the fail-safe shutter which isolates the transmissometer from the process gases.

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  How Do I Perform an Audit on my Opacity Monitor?

  Monday, July 11, 2022 | Derek Stuart

  Maintenance

  Ongoing quality assurance is important for any piece of measuring equipment. From a voltmeter to a spectrophotometer, calibration checks are needed to demonstrate that it is continuing to function within its design specification.

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  Can I Mount my Opacity Monitor on a Positive-Pressure Duct?

  Wednesday, April 7, 2021 | Derek Stuart

  Products

  Opacity monitors are used to measure emissions of smoke and dust from combustion sources. They are mounted directly onto the stack or duct, so a constant flow of purge air is needed to protect their delicate optics from the hot, dusty, and corrosive stack gases.

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  The Pros and Cons of Particulate Matter Monitors

  Tuesday, December 1, 2020 | Derek Stuart

  Industry

  Most large-scale combustion processes need to measure the amount of particulate matter (PM) leaving their stack. The main exceptions are those burning natural gas, which is assumed to contain no particles. AMETEK Land offers three instruments which measure PM – the 4500 MkIII, 4650-PM and 4750-PM.

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  What is Your Plan if Your Opacity Monitor Stops Functioning, and You Can’t Operate Without One?

  Friday, October 30, 2020 | Derek Stuart

  Industry

  The 4500 MkIII opacity monitor from AMETEK Land is designed to give many years of reliable operation but sometimes breakdowns can happen. Many processes are not permitted to operate without a functioning opacity monitor, so it is important to have a plan in place for any downtime.

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  Is there an alternative to an expensive wet-extractive PM monitor on a stack with a wet FGD?

  Wednesday, September 18, 2019 | Derek Stuart

  Application Products

  Modern coal-fired power plants use a range of methods to reduce the amount of pollution released to the atmosphere. Selective catalytic reduction is used to remove oxides of nitrogen (NOx), high-efficiency electrostatic precipitators remove particulate matter (PM) and wet flue-gas desulfurization (FGD) systems remove sulphur dioxide (SO2). An unfortunate side-effect of using a wet FGD is that the stack gases downstream are saturated with water drops. Consequently, typical instruments used for measuring PM emissions such as opacity monitors and in-situ light-scattering monitors cannot be used because they cannot distinguish between dust particles and water droplets.

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