Vernier EasyData Guidebook - Manual (Page 36)

EasyData Guidebook 35
Miscellaneous Data Collection
Titration mode cannot be selected and will only appear if a Drop Counter along
with an analog sensor is being used. When this mode is set all data-collection
settings are preset and cannot be changed.
When the titration mode is started, the LabPro or CBL 2 is instructed to collect
2500 samples from the attached sensor at a sample interval of 1 sample/second.
It is best to set the drop rate of the titrant no faster than 1 drop/second.
To stop data collection, it is best to select rather than allow all 2500 samples
to be collected. When data collection is stopped, first and second derivatives are
calculated. The derivative calculations will only apply to data collected from a
sensor in CH1 of the data-collection device.
To perform a titration without using a Drop Counter, refer to the data collection
mode Events with Entry found earlier in this section.
Long-Term mode, is automatically set if the sample interval of a Time Graph is
set above 270 seconds or the experiment length exceeds 1800 seconds (30
minutes). When Long Term is set, the data-collection device can be disconnected
from the calculator during data-collection. Once all data has been collected,
reconnect the data-collection device and follow the on-screen instruction to retrieve
the data. This mode cannot be used with EasyLink or EasyTemp.