6700 Portable Sampler User Manual - Isco

6700 SAMPLERS
The software version number changes when your sampler’s software
is updated. Screens 56 through 60 show you how to find the
system IDs.
101
MEMORY
The 6700 Sampler contains 128 kilobytes of battery backed RAM
(Random Access Memory) that stores:
Five sampling programs
The sampling results from the most recent program
The rainfall data collected from rain gauges
The data from a refrigerator temperature sensor
The data collected from a 700 Series module
Parameter data collected from a YSI Sonde
Calculated flow information from the current flow module
The sampling results memory stores up to 1004 events. The program
run and start time information is logged as four events.
These four entries are held for the duration of the program. The
remaining 1000 are for logging sample events, program events, and
errors from the currently running program. If the running program
exceeds 1000 events, the data will “roll-over.” That is, the sampler
will replace the oldest stored event with the newest event. When
using a YSI Sonde the sampler logs two entries at each sample
event. This reduces the sampling results memory to 500 events.
Module, YSI Sonde, Refrigerator Temperaure, and rain gauge
readings are stored in memory partitions. The storage capacity
depends on the reading types, the number of bytes per reading, and
the data storage interval.
The sampler clears the sampling results memory when the site
description changes. It is important to collect the sampling
results before changing the site description – the data can not be
retrieved afterwards. Keep in mind that the description may
change when selecting an extended program.
The partition data is cleared when the sampler automatically
creates and sizes the memory partitions. This occurs when you:
Select a new program
Change the Data Storage Interval in the current program
Change the programming mode
Install a new 700 Series Module
Change 700 Series Module mode of operation
Add or remove a rain gauge with the Hardware Setup
Add or remove a refrigerator temperaure sensor as I/O3
Add or remove a YSI parameter with the Hardware Setup
Reinitialize the sampler