Hi Andy,
Andy Middlehurst schrieb:
Hi Will,
Many Thanks for your rapid response.
It does help a lot. I did get the alerts for the unit 1 (and others) when I'd
originally set the threshold (to 40% then increased to 50%). However I didn't
include them for brevity. I think the confusion on my part arises from:
1. The use of the percent symbol when relating to temperature.
2. Me assuming that setting a threshold of 50% actually meant 50 degrees (C)!
I had some trouble with understanding, too. So I asked at GTAC...
overtemp-threshold <%> relates to the temperature range specified in the
product datasheet. For C2 it is:
Standard Operating: 0° C to 50° C (32° F to 122° F)
In general
"range" = "temp max" - "temp min"
"threshold" = "temp min" + "range"*"overtemp-threshold <%>"
For Celsius and 50%:
Range is from 0 to 50 degree C = 50 degrees
Threshold = 0° C + 50*50% = 0° C + 25 = 25° C
For Fahrenheit and 50%
Range ist from 32° F to 122° F ? 90 degrees
Threshold = 32° F + 90*50% = 32° F + 45 = 77° F (same as 25° C!)
The units obviously report on their actual temperature, so how does that relate to the
threshold percentage, and what would be a "safe" value to use?
We selected 80%, since that's close to max and should not be exceeded (our
point of view!).
Kind regards
Reinhard
--
Dipl.-Ing. Reinhard Strebler, Rechenzentrum der Universitaet Karlsruhe
Leiter der Abteilung Netze und Kommunikation
Zirkel 2, D-76128 Karlsruhe
Tel.: +49 721 608-2068 Fax.: +49 721 32550
http://www.uni-karlsruhe.de
mailto:[email protected]
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