Teledyne manual SDI-12 Sondes, SDI-12 Data Parameters, 6712FR Refrigerated Sampler

Models: 6712FR

1 244
Download 244 pages 57.15 Kb
Page 135
Image 135
Section 6 SDI-12 Sondes

6712FR Refrigerated Sampler

Section 6 SDI-12 Sondes

6.1SDI-12 Data Parameters

In order to provide you with the flexibility to use the water parameter sensors that best meet your needs, Teledyne Isco has implemented support for SDI-12 protocol. Support of this standard allows you to use SDI-12 compatible devices in con- junction with your 6712FR sampler in Extended Programming mode.

The 6712 can accept up to 16 parameters from up to ten sensors with SDI-12 addresses from 0 - 9 (refer to chart in Figure 6-1). This data can be used in different ways. Data can be logged at user selectable time intervals for later download and processing by Teledyne Isco’s Flowlink™ program. You can set up sampling programs that will be enabled to run only if conditions based on parameters monitored by the connected SDI-12 devices are met. The sampler can also be programmed to take samples each time certain parameter limits are exceeded.

The data parameters used by the sensing device (sonde) and recording device (sampler) must match. Otherwise, the equipment could record the data values for one parameter as another’s, such as reporting a pH value as being temperature.

Certain vendors’ sondes (such as Hydrolab and YSI) have enhanced commands that facilitate “plug and play” setup. These Isco Ready sondes can tell the 6712 what values they have, their order, and units of measure.

Other SDI-12 compatible sondes can be used, but require manual setup to identify proper data types for each data value reported.

This section shows you how to set up both Isco Ready and other SDI-12 sondes for use with the 6712FR.

6.1SDI-12 Data Parameters WARNING

SDI-12 Sondes have not been approved for use in hazardous locations as defined by the National Electrical Code.

Manual background CAUTION

Before you install any sonde, you must take the proper safety precautions. Refer to Appendix C in the back of this manual. Additional safety considerations may be required. Check appli- cable guidelines, codes, and regulations of federal, state, city, and county agencies.

6-1

Page 135
Image 135
Teledyne manual SDI-12 Sondes, SDI-12 Data Parameters, 6712FR Refrigerated Sampler