jmw, thanks for the link i just couldnt figure it out
At 2pm today (Monday) I fixed a hosepipe to the capiliaries of the transmitters and doused them with water, and continued to do so for an hour. You can see a clear difference in the drop of level on the PI graph...
thank you for your responses,
Yes, it is clear that this is the temperature effects on the capilliaries causing the change. The scale of the graph threw me slightly, however when you work it out it is only a 0.9% change from high to low.
I have a question for BigInch
In your calculation, what...
We are using 3 x rosemount 2088 level transmitters that use capilliaries from the base of the tank at the tapping point to the transmitters which are installed adjacent to these on the bund wall.
There is no temperature measurement measurement on this tank, but one must guess that the...
ambient temp in the day is about 18 degrees C while at night is about 12 degrees C
With the sheer volume of liquid contained within this tank i do not see how ambient temperatures can alter the level indications so quickly (12 hours each way)
It is a real strange one for me, as the tank has...
Hello,
We have a fuel oil tank that is approximately half full (300,000) litres.
This tank is only there for use as a standby, should our gas supply become interupted.
The tank is measureing the level using 3 rosemount level level transmitters. Looking at PI trends over a period of ten days...
Hello,
We have a fuel oil tank that is approximately half full (300,000) litres.
This tank is only there for use as a standby, should our gas supply become interupted.
The tank is measureing the level using 3 rosemount level level transmitters. Looking at PI trends over a period of ten days...
