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Technical Support FAQ

Model 560 Lighthawk - Opacity / Dust Monitor

How do I get mg/m3 readings from the 560? Does the customer have to go through some tests at the stack?
Further to question #1: What kind of testing is required to get particulate mass readings - Is this isokinetic testing?
From the manual on section 4, it says: Optical Density = log (1/1-opacity) and can particulate mass readings be obtained from this calculation... since it's a straight line approximation?
Will the calibration remain the same, using zero & span flags?
Can they have the mg/m3 readings without the enhanced remote panel?
Can they have 2 outputs for (mg/m3 & opacity) without the remote panel?


How do I get mg/m3 readings from the 560? Does the customer have to go through some tests at the stack?

Yes. Testing is required in order for the 560 to report mg/ m3. Please refer to section 4 of the manual.

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Further to question #1: What kind of testing is required to get particulate mass readings - Is this isokinetic testing?

Yes. EPA method 5 or 17.

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From the manual on section 4, it says: Optical Density = log (1/1-opacity) and can particulate mass readings be obtained from this calculation... since it's a straight line approximation?

Optical density needs to be monitored during the Method 5 or 17 Particulate Mass testing. These points then need to be entered in the Dust Mass and Optical Density correlation curve in the 560 monitor.

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Will the calibration remain the same, using zero & span flags?

Yes, they can. The unit continues to measure and report opacity. However, what the unit displays depends on what measurement units (F0) are chosen. i.e. opacity/ optical density or particulate mass. Refer to User Bank Data in section 3 of the manual.

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Can they have the mg/m3 readings without the enhanced remote panel?

Yes. The scaling can be programmed in the A Bank of the optical head and F0 (measurement units) can be set to Particulate Mass.

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Can they have 2 outputs for (mg/m3 & opacity) without the remote panel?

No. You will need an E.R.P. if you would like to have both.

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