Teledyne manual Memory, 6712FR Refrigerated Sampler Extended Programming

Models: 6712FR

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5.20 Memory

6712FR Refrigerated Sampler

Section 5 Extended Programming

Manual backgroundManual backgroundManual backgroundManual backgroundManual background Note

 

The internal analog output can not be installed in a controller

 

that has the internal voice modem also installed. Contact the

 

factory for information regarding external cellular modem

 

options.

 

Flowcharts for analog output screens appear in Appendix A.

5.20 Memory

The 6712 Sampler contains 512 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 an SDI-12 Sonde

 

• Calculated flow information from the current flow

 

module

 

The sampling results memory stores up to approximately 1004

 

events (the actual number is dependent on the number of SDI-12

 

parameters). 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 an SDI-12 sonde, the

 

sampler logs additional entries at each sample event.

 

Module, sonde, refrigerator temperature, 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 with a different storage interval

 

• 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

5-42

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Teledyne manual Memory, 6712FR Refrigerated Sampler Extended Programming