Measurement data format

[cspare]

I've enabled the logging of measurement data for the pH and temperature sensors. I can then read the stored data to my computer. In the dialog box I select Comma as decimal marker, Semicolon as Column separator and I check the 'with units' box. When I look at the file it generated I'm a bit confused about the numbers used -- I've got no idea how to interpret them.
The file contains this information:


Date;Time;pH-value 1[pH];Temperature 1[°C];
3-3-2009;22:14:00;1,3829e+006;1,4222e+006;
3-3-2009;23:14:00;1,4615e+006;1,4943e+006;
4-3-2009;0:14:00;1,5271e+006;1,5533e+006;
4-3-2009;1:14:00;1,5467e+006;1,5467e+006;
4-3-2009;2:14:00;1,5533e+006;1,5402e+006;
4-3-2009;3:14:00;1,5467e+006;1,5533e+006;
4-3-2009;4:14:00;1,5467e+006;1,5533e+006;

and a few days later:


8-3-2009;12:14:00;-15592;4068,6;
8-3-2009;13:14:00;4068,6;1,6687e+006;
8-3-2009;14:14:00;2,7804e+007;1,0237e+005;
8-3-2009;15:14:00;4068,6;4068,6;

What do these values mean? E.g. how can I calculate the actual measured pH value from a number like 1,3829e+006?

The display graphics button in the application shows this chart:
http://www.aquaforum.nl/gallery/upload/cspare_aquariumdata.jpg
As you can see the data contains quite some spikes.. is that normal?

[Matthias]

These are no normal values.
You should see values like 24.6 for temp and 7.77 for pH.
Is there maybe a transmission problem?
Firmwareversion? Softwareversion? Connected via?

[cspare]

I got it working now, I updated my client software to version 4.0.5.0 (I had version 3.8 i think). The data export now shows correct values. thanks.

[Devilsbar]

Hi, i tried using the measurement data to display graphics
but i could not see anything the graph came out but no indications and values.
how to go about doing it?

[Matthias]

did you enable the recording of the measurement values?

Menu "Measurement data"->"Vaules to save": set the check marks

[Devilsbar]

yes i did, let me try again. thanks

[Devilsbar]

seems unable to view it yet,
when i select graphic display i was promted to select a .txt file.
where do i get the .txt file thanks

[Matthias]

it is there where you saved your measurement data before

[Devilsbar]

it is in .par file,how do i open it.
from the ghl graphic display,i can only open .txt file.

[Matthias]

the par file is the file where you stored all settings of your ProfiLux, this is not the correct file

you have to save the measured values in a file, click "Read and Save" on the measurement page

[Devilsbar]

hi manage to see the graphic display.
http://i12.photobucket.com/albums/a214/nyeo1985/6footer%20tank/tempbar.jpg
looks like my chiller is kicking in too often. i wanted to set 26.3 to 27.3degrees...
what is not right?

[Matthias]

increase hysteresis!

[Devilsbar]

http://i12.photobucket.com/albums/a214/nyeo1985/6footer%20tank/tempsetting.jpg

this is my current setting.
sorry i dont understand how the hysteresis work

[Devilsbar]

can someone help me with the hysteresis setting on the graphic above?? my chiller is kicking in too often.

[Matthias]

simple: increase the value for the hysteresis until the switching frequency is OK or you, maybe start with 2°

[Devilsbar]

increase the 1 on the left or on the right(under the 1-10V)?

[Matthias]

the left value belongs to hysteresis

[laurawicks]

675676Hi I have a similar problem as the earlier mentioned one - when I read and save my graphs they come up with values totoally unrelated to what the actual sensor values are (ie pH 0.4, temp 71C). How do I fix this?

I have a profilux 3, firmware 5.00, PC software ProfiluxControl 5.0.1.1. Screenshots attached

Any help greatly appreciated

Thanks
Laura

[Matthias]

how did you load the data - over LAN, SUB, RS232 or WLAN?
the only thing I could imagine is a transmission problem, or a change of the sensor configuration during the recording period

[laurawicks]

I have a laptop linked to the P3 by RS232 with USB converter. I have been trying to download date for the last few days so I dont think its a sensor configuration thing.

[laurawicks]

I have tried turning the laptop and P3 off, checked the connections and turning it back on. Still having the same problem. I need real numbers!

[Matthias]

Hi,

I got your configuration files and we are checking them.
As soon as we have a result we will reply.