6700 Portable Sampler User Manual - Isco
6700 Portable Sampler User Manual - Isco
6700 Portable Sampler User Manual - Isco
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<strong>6700</strong> SAMPLERS<br />
Chapter 5 Reference<br />
Chapter Contents<br />
Sample Event<br />
Sample Volume<br />
SuctionHead<br />
Rinses and Retries<br />
Pacing<br />
Distribution<br />
<strong>Sampler</strong> Enable<br />
Pauses/Resumes<br />
StartTimes<br />
Other Functions<br />
<strong>Manual</strong> Functions<br />
ProgrammingStyle<br />
Hardware Setup<br />
SystemIDs<br />
Memory<br />
Pressurized Lines<br />
Command Driven Operation<br />
1<br />
2<br />
Extended Screen for<br />
Suction Head Settings<br />
AUTO SUCTION HEAD<br />
ENTER HEAD<br />
SUCTION HEAD OF<br />
___ ft<br />
(min - max)<br />
81<br />
SAMPLE EVENT<br />
A sample event consists of a complete sampling cycle. A sample<br />
event includes presample and postsample purges, line rinses,<br />
sampling retries, and deliveries of sample volumes. Only one<br />
sample volume is placed in a given bottle during a sample event,<br />
however, depending on the distribution, multiple bottles may<br />
receive sample volumes.<br />
SAMPLE VOLUME<br />
The sample volume is the discrete, programmed amount of liquid<br />
delivered. During a sample event the sampler may deliver a sample<br />
volume to several bottles, depending on the distribution.<br />
“Sample volumes” and “samples,” are used interchangeably.<br />
Extended programming adds a flow-dependent sample volume<br />
option for uniform time-paced programs. If a flow module is<br />
attached, the flow source may be the module’s flow volume. Otherwise<br />
it is the flow pulse count received at the external flow<br />
meter connector. You enter the amount of flow required for each<br />
10 ml of liquid. When the sample event is initiated, the sample<br />
volume will be based on the flow that has occurred since the last<br />
sample. This sample volume is will be at least 20 ml, but not<br />
more than the bottle volume (or 9990 ml, whichever is smaller).<br />
With flow-dependent sample volumes, the sampler resets the<br />
flow volume count at the start time. Therefore, the sampler will<br />
not take a sample at the start time.<br />
SUCTION HEAD<br />
Suction head is the vertical distance between the surface of the<br />
liquid source and the sampler’s pump. At each sample event, the<br />
sampler determines the suction head automatically.<br />
In extended programming, you can manually enter the suction<br />
head if you want. Select ENTER HEAD only when the head<br />
remains stable and you can measure it accurately.
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