072-0500 Alphasense User Manual
OPC-R1 Optical Particle Counter Issue 1
Alphasense Ltd Page 14 of 33 February 2019
Sensor Technology House, 300 Avenue West, Skyline 120, Great Notley. Essex.CM77 7AA. UK
Tel: +44 (0) 1376 556700 - Fax: +44 (0) 1376 335899
Email: sensors@alphasense.com - Web: www.alphasense.com
Explanation of the CSVs
(Please note sheets are truncated to save space)
Comment
Software ver: OPC-R1 Alphasense
1.0.6473.16786
Device SerNo
Unit serial number
InfoString OPC-R1
FirmwareVer=2.21...................................BS
Firm ware version
Laser digital pot setting 230
Laser setting
Gain scaling coeff 1
Unused Scaling coefficient set at 1
ToF to SFR factor 87
Scaler for dynamic fan speed
correction
Bins Bin00 Bin01 Bin02 Bin03 ….. Bin15
Bin low boundary (ADC o/p) 0
9
16
23
….. 3256
4095
Final figure is top boundary of bin
15
Bin low boundary (particle
diameter [um])
0.35
0.7
1.1
1.5
….. 12
12.4
Final figure is top boundary of bin
15
Bin mean (particle diameter
[um])
0.55
0.9
1.3
1.7
….. 12.2
Vol of a particle in bin (um3) 0.087
0.382
1.150
2.572
….. 950.8
Weighting for bin 1.65
1.65
1.65
1.65
….. 1.65
Individual bin weighting
Data:
OADate
Time
Bin00
Bin15
Mean
ToF
Bin1
(us)
… Mean
ToF
Bin7
(us)
Count/s
Samp
…
Period
(s)
SFR
(ml/s)
#Reject
Glitch
#Reject
Long
TOF
Temp
(C)
Rel.
Hum.
%
PM1
(ug/m3)
PM10
(ug/m3)
Roll
Mean_
PM1
Roll
Mean_
PM10
42341.
6282
8.001
0
6
… 0
20.00
1
0.79
0
0
29.3 39.2 1.38
6.85
1.38
6.85
42341.
6282
5.946
1.982
9.33
… 0
18.83
1.009
0.79
1
0
29.4 39.5 1.09
198.75
1.24
102.8
42341.
6282
8.003
0
7
… 0
32.01
1
0.79
0
0
29.4 39.8 2.36
108
1.61
104.53
42341.
6282
7.925
0.991
5.67
… 0
28.72
1.01
0.78
0
0
29.4 39.9 1.88
149.15
1.68
115.69
42341.
6282
8.008
0
6
… 0
23.02
0.999
0.79
1
0
29.5 39.9 1.46
87.34
1.63
110.02
42341.
6282
11.99
7
0
6.67
… 0
25.99
1
0.79
0
0
29.5 39.7 1.74
3.56
1.65
92.27
42341.
6282
4.954
0
7.67
… 23
20.80
1.009
0.8
0
1
29.5 39.5 1.52
12.79
1.63
80.92
each bin
Used for dynamic
fan compensation
Total
counts
per s
across
all bins
Sample
flow
through
the
OPC
Noise and
invalid particle
error indicator
Instantaneous
PM1, 2.5, 10
PM1, 2.5, 10