072-0300
Alphasense User Manual
OPC-N2 Optical Particle Counter
Issue 5
Alphasense Ltd Page 16 of 34
December 2015
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: [email protected] - Web: www.alphasense.com
10
Running the OPC N2 using direct SPI control
Full details of the SPI commands and connections are given for the OPC-N2. This is should be
sufficient for the user to be able to design their own SPI system to control the device and gather
data.
A coding example is given in given in 072-0325 Supplemental SPI information for OPC N2
If, to save power the OPC is to be run periodically with the fan off and laser at low power, it is
recommended that the fan and laser are powered up for a minimum of 10 s before taking a
measurement.
Alphasense can offer only limited support for programming/coding and customers may need to seek
third part assistance if they are unfamiliar with SPI protocols.
11 Revision
Control
Version
Comment
Release Date
Released by
5
Update to version 18 firmware, and combine
documents into one manual
December 2015
Mark Giles
