APPENDIX A Firmware Commands Teledyne API Ultrafine Particle Monitor - Model 651
A-10 07506C DCN6727
RRS – Read Status Record
RRS returns the current raw analog values in “S” record format for
diagnostic use.
RRS
Command RRS
Response S record (see below)
S Record identifier
AP Absolute pressure in mbars
ST Conditioner Temperature in degrees Celsius
GT Growth Tube temperature in degrees Celsius
OT Optics temperature in degrees Celsius
WT
Water Separator temperature in degrees
Celsius
FL Sample flow rate in cm3/min
Example S Record:
S,1003,20.0,60.0,60.0,20.0,124.0
Record Type AP ST GT OT WT FL
S 1003 20.0 60.0 60.0 7.0 124.0
RTA – Read Cabinet Temperature
RTA reads the cabinet (ambient) temperature in degrees Celsius.

RTA

Command RTA
Response X X = A floating point number from 0.0 to 60.0
Example
Command RTA Read Cabinet Temperature
Response 23.8 23.8 °C
RTC – Read Conditioner Temperature
RTC reads the conditioner temperature in degrees Celsius.
RTC
Command RTC
Response X X = Floating point number from 0.0 to 50.9
Example
Command RTC Read Conditioner Temperature
Response 20.0 20.0°C