Difference between revisions of "Electric conductivity - WTW cond340i"
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==Disadvantages:== | ==Disadvantages:== | ||
− | Sometimes the connection between laptop and EC meter fails while downloading the data and a number of datasets is not transmitted. | + | Sometimes the connection between laptop and EC meter fails before or while downloading the data and a number of datasets is not transmitted. |
− | + | Uninstalling AND re-installation of the software or downloading 2 or 3 times ensures that you have the complete dataset on your computer (but you might need to combine the files). | |
+ | Functions like configuring and starting the logging need awkward key-combinations that are hard to remember. | ||
==What to watch out for:== | ==What to watch out for:== | ||
see disadvantages | see disadvantages | ||
+ | If you want 5 sec logging interval, choose <nowiki>>> 5 '' <<, not >> 5 ' <<</nowiki>. Obvious you think? So did we. Several times. | ||
the cell constant has to be recalibrated periodically | the cell constant has to be recalibrated periodically |
Revision as of 08:12, 11 May 2010
Parameter to be measured:
Electric conductivity (EC)
Method:
handheld EC meter
Equipment:
WTW cond 340i
Advantages:
- 500 measurements can be stored and later downloaded
- you can choose the temporal resolution of automatic measurements
- can also be installed in the field and log continuously for several days (depending on the chosen temporal resolution)
Disadvantages:
Sometimes the connection between laptop and EC meter fails before or while downloading the data and a number of datasets is not transmitted. Uninstalling AND re-installation of the software or downloading 2 or 3 times ensures that you have the complete dataset on your computer (but you might need to combine the files). Functions like configuring and starting the logging need awkward key-combinations that are hard to remember.
What to watch out for:
see disadvantages If you want 5 sec logging interval, choose >> 5 '' <<, not >> 5 ' <<. Obvious you think? So did we. Several times.
the cell constant has to be recalibrated periodically
Problems/Questions:
Links
Projects that used the above equipment:
Other related web sites:
- wtw: [1]