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EVENT-PROPORTIONAL SAMPLE EXTRACTION
When selecting this sampling mode, the sampler is
waiting for an external “event” signal, e.g. from a
connected pH-meter. A sample is extracted according to
the programming as long as the signal is present. When
the signal drops; the sampler waits for the next signal
and then fills the next empty bottle.
Which „event“ sample has been filled into which bottle
is recorded in the info memory.
The following settings are possible in the event mode:
EVENT TIME / DIGITAL / ANALOG / BATCH SAMPLING
In the event mode the sample extraction can be time or flow dependent (analog and digital).
The programming is effected as described before (sampling mode time, flow digital).
BATCH SAMPLING
Other than at the „classic“ event sampling, the bottle
change is
not
effected with each signal but according to
the programmed time (e.g. every 2 hours). Thus the
bottles are always assigned to a fixed time pattern.
Example:
When a tank is discharged by means of a pump, each switch-on/switch-off of the pump
would lead to a bottle change in the classic event mode. In the batch sampling mode,
however, this is not requested and thus can be avoided by activating the batch sampling
function which means that samples are only extracted as long as the signal is active (the
pump is running). During the bottle filling time of 2 hours there can thus be several pump
cycles which activate the sample extraction, however, are only considered as 1 event.
