B-16 Model 3786 Ultrafine Water-based Condensation Particle Counter
Data Reporting Records
D Record (data)
D,Mode,Flags,CN,ST,LT,CNT,PM,RP
D Record Identifier
Mode Current Operating mode
Flags Status Flags
Weighting Description
1 Live-time was less than minimum set by SLM command for at least a
portion of the sample
2 Overflow of data in one of the data record fields
4 The flow was out of range for some portion of the sample
8 Absolute pressure out of range for some portion of the sample
10 Reserved
20 A drain cycle was in process during the sample or the reservoir was
detected full
40 Set if dry wick was detected during the sample
80 Set if reservoir full for ten minutes and water injection has stopped
100 Saturator, Growth Tube, or Optics temperatures were out of range
during the sample.
200 The laser power was out of range for some portion of the sample.
400 UWCPC in warm-up period
1000 Set during front porch period of a scanning sample
2000 Set during the back porch period of a scanning sample
CN Aggregated Concentration—This concentration value is calculated by dividing
the accumulated aggregate counts by the live-time of the sample * 5.0. The
aggregated counts and live-times are accumulated each tenth-second interval.
If the live-time value for the interval is less than 10%, the aggregated counts
are calculated based on the overflow concentration of 9.99e5. Otherwise the
aggregated counts accumulated are the total counts detected during the
interval and live-time is the live-time value for the interval.
The overflow flag will be set when the concentration value exceeds 9.99e5.
ST Sample time (elapse time) 0.1 second resolution (0.1 to 3600).
LT Live time 0.1 second resolution (0.1 - 3600).
CNT Accumulated particle counts.
PM Place holder, always 0.
RP Raw Photometric value.
To Next Page
Loading...
