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MRK-D-0048 V4
Aeroqual Dust Sentry / AQS User Guide
Page | 59
Using Microsoft excel plot your 2 data sets in an x-y scatter plot. Add a trend line and
equation as below.
The graph to the left below shows the time series of the two monitors. The graph to the right
below shows the slope calculation. In this example the Monitor is reading higher than the
reference monitor. The slope of the curve Reference vs Dust Monitor is 0.6568. So a gain of
0.6568 needs to be applied to the monitor.
The Aeroqual monitor will need a new gain, calculated using the formula below:
𝑵𝒆𝒘 𝑮𝒂𝒊𝒏 = 𝑶𝒍𝒅 𝑮𝒂𝒊𝒏 𝑿 𝑲 𝑭𝒂𝒄𝒕𝒐𝒓
𝑵𝒆𝒘 𝑮𝒂𝒊𝒏 = 𝟏 × 𝟎. 𝟔𝟓𝟔𝟖 = 𝟎. 𝟔𝟓𝟔𝟖
Upload the new gain into the gain parameter in the gain and offset table using the calibration and
service app.