Campbell Scientific PWS100 Present Weather Sensor - Manual (Page 53)

Section 7. Operation
11 =>1.00 0.2
12 =>1.20 0.2
13 =>1.40 0.2
14 =>1.60 0.2
15 =>1.80 0.2
16 =>2.00 0.4
17 =>2.40 0.4
18 =>2.80 0.4
19 =>3.20 0.4
20 =>3.60 0.4
21 =>4.00 0.8
22 =>4.80 0.8
23 =>5.60 0.8
24 =>6.40 0.8
25 =>7.20 0.8
26 =>8.00 1.6
27 =>9.60 1.6
28 =>11.20 1.6
29 =>12.80 1.6
30 =>14.40 1.6
31 =>16.00 3.2
32 =>19.20 3.2
33 =>22.40 3.2
34 =>25.60 74.4
7.4.1.22 Message Field 48
This field outputs a histogram which contains the number of particles counted
within the measurement period that have a given peak-to-pedestal ratio (see
Section 8.6 – this gives a measure of the number of crystalline particles). This
is a histogram of 50 bins for ratios for 1.0 to 6.0 in steps of 0.1.
Note that the ratios for particles less that 0.5 mm in size are not accurate so are
not included in this histogram. The total number of particles in this histogram
can therefore be less than the total particles detected.
7.4.1.23 Message Field 49 Visibility (m), 10 minute average
This field will output the average visibility range (m) calculated over the
previous 10 minutes, independent of the message interval – this is a 10 minute
rolling average.
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