ISCO 6700SR, Instruction Manual, Page: 116 / 190

6700SR Refrigerated Sampler
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When YES is selected, the sampler clears the stored data and re-
formats the memory partitions. The sampler then displays the new
capacity of the partition memory.
If the duration is too short, try changing the data storage interval
or eliminating unnecessary reading types in the Hardware or Mod-
ule Setup. For example, a sampler configured with a 730 Bubbler
Module and a rain gauge storing data at a one-minute interval, cre-
ates level and rainfall partitions that hold 13 days of readings.
Changing the storage interval to two minutes extends the storage
capacity to 26 days.
The sampler does not have to be running a program to store read-
ings. When the sampler is on, it stores readings at the selected data
storage interval. Once the partition is filled, the readings roll over.
When the sampler is running a program, the partitions become “trig-
gered” by the programmed start time or the first enable time, which-
ever is later. A triggered partition continues to log readings at the
selected interval, but will not replace any readings taken after the
trigger event. The sampler fills the partition and then stops record-
ing to preserve the data. The first reading preserved in a full parti-
tion is one hour before the trigger event. A full partition can be reset
by starting another program or changing storage parameters.
If you require continuous readings for analysis, be sure to collect
the readings before the partition fills or rolls over to avoid gaps in
the data.
Isco offers a 6700 sampler controller with an expanded memory ca-
pacity. Instead of the standard 128 kilobytes, this controller has 4
megabytes of RAM available for program and data storage. Contact
the factory or your sales representative for more information.
Flash Memory and Software Upgrades
The sampler has Flash memory to store its software. With Flash
technology, you can upgrade your sampler’s software without send-
ing it back to the factory or replacing a chip. Simply connect a com-
puter to the sampler and run the Flash Update program.
Pressurized Lines
The sampler can obtain samples from pressurized lines, as long as the
line pressure remains below 15 PSI (pounds per square inch). Pres-
sures greater than 15 PSI may prevent the sampler from purging the
suction line; moreover, extreme pressures can force liquid past the
pump, even when the pump is not running. For more consistent sam-
ple volumes from lines under constant pressure, calibrate the sam-
ples. Isco does not recommend sampling from pressurized lines.
PARTITION MEMORY
WILL LAST 13 DAYS
When updating the Flash mem-
ory, power must be applied to
the sampler.
Note