C-24 Model 3321 Aerodynamic Particle Sizer
Spectrometer
SS Accumulator Data Record (B)
CS,B,SNX,tindex,ffff,stime,dtime,ev1,evt3,evt4,total,b1,b2,b3,... bn
(the record is not available in Averaging or Correlated modes)
CS = Checksum
B = Side Scatter Accumulator Data Record
S = S for Summed Mode
C Correlated mode
N = N for normal operation
A if in autocal mode
D if in autocal and autocal was “done” at the beginning of
this sample
X = X for spare position
tindex = time index 0 to sample time value - 1
(note if enabled for unpolled operation the
record is always reported when tindex = 0)
ffff = 4 digit hex value for status flags (see RF command)
stime = sample time not corrected for dead time
dtime = dead time
evt1 = number of single hump events
evt3 = number of 3+ hump events
evt4 = number of timer overflow events
total = total (2-hump) particles measured (sum of reported
channels, evt 2)
b1... bn = particle counts in each pulse height accumulator bin (n=64)
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