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Teledyne API Ultrafine Particle Monitor - Model 651 Instrument Description
07506C DCN6727 41
The pulse output is a way to get raw particle count information.
This information is also available through serial command. Using
the SM or SSTART,3 command, described in Appendix B
, you can
read raw, uncorrected, particle counts. TAPI recommends using the
serial interfaces for raw counts rather than the pulse output
because then all the information used to calculate the corrected
concentration is communicated and there are no issues with the
monitor’s ability to accurately count the pulses.
Ethernet Communication Port
Instrument status, including particle concentration, of the Model
651 can be monitored remotely from a local area network or over
the internet using the Ethernet communication port.