Teledyne 651 Manuale Utente

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Computer Interface, Commands, and Data Collection 
Teledyne API Ultrafine Particle Monitor - Model 651 
70 
07506C DCN6727 
Notes:  Data records written to the flash drive are also echoed out 
of the Ethernet interface on the Telnet socket. This allows 
redundant external data collection to be performed with 
the Ethernet connection while data is being collected by 
the flash drive. 
 You 
cannot 
change 
the 
SAMPLE TIME
 while data is being 
logged - you must stop logging data first. 
4.  Press STOP to discontinue data logging at any time.  
Note: Do 
not remove the Flash drive while logging data.  
Do not restart data logging or go beyond 99 files. If you 
do, data files may be overwritten.  
5.  Remove the Flash drive and connect it to a computer to 
download the data.  
Flash Memory Data Files 
The data is stored in files with the "dat" extension and a new file is 
created either every day or every hour (depending upon the Logging 
selection you have made). If you stop data collection at any time, 
the current data file is saved even if it contains less than one 
hour/day of data. 
 
Every time a new run is started, a unique file is created. Each data 
file has the following format:  
 
Filename 
yymmddxx, where yy is the year (no leading zero), mm is the 
month (1-12), dd is the day of the month, and xx is a sequence 
number for the day (01-99). Example: 9110601.DAT where 9 
is the Year, 11 is the month, 06 is the day, 01 is the file 
number and .DAT is the extension. 
LINE 1 
“TSI CPC DATA VERSION 3” 
LINE 2 
Time stamp for the file: yy/mm/dd,hh:mm:ss where yy is the 
year, mm is the month, dd is the day of the month, hh is the 
hours, mm the minutes, and ss the seconds 
LINE 3 
Data average period (sample time intervals) in seconds. 
LINE 4 
Dead-time correction factor, flow calibration constant (mL/min). 
LINE 5 
Instrument model number, firmware version number, serial 
number 
LINE 6 
Header descriptions. 
LINE 7 
First data record. 
LINE 8 
Second data record. 
LINE X 
Last data record.