JDC Electronic SA SalinoMADD - Manual (Page 8)

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MADD Technologies sàrl
– Avenue des Sports 42 – CH-1400 Yverdon-les-Bains – Switzerland
Tel: +41 24 445 31 16 – Fax: +41 24 445 21 23 – Email: [email protected] – www.madd.ch
Calibration
In the MAIN MENU, select CALIBRATION with touch
and press
. The calibration is done in the following 4
points: at 0 mg/l, at 1200 mg/l, at 825 mg/l and at 426 mg/l.
The message displayed here refers to instructions on previous page.
The following display appears about 5 seconds later. If everything has
been put into place, press
.
The first calibration step is the determination of the zero point. It is
obtained using pure water as reference. While CALIBRATION OFFSET
is on display, 16 measurements are done. The average of these
measurements finishes the zero calibration which is saved
provisionally
When this display appears, pour 20 ml of calibration liquid into pure
water and use probe to stir it well in order to get a homogenous
mixture. At this moment the solution contains 1200 mg of salt per
liter of water. Press
The second calibration step does 16 measurements as well.
While these are being carried out, CALIBRATION 1200 mg/l stays on
display.
At the end of the display, the average value of the 16 measurements
is saved provisionally.
The next step permits to do the third point of the calibration.
Adding 100 ml of pure water into the 0,2 liter solution, the salinity
reaches 825 mg per liter.
The display indicates the procedure in course showing CALIBRATION
825 mg/l.
At the end, the average value of 16 measurements is saved and the
SalinoMADD continues to the next phase.
The calibration of the fourth and last point is done by adding 300 ml of
pure water into the beaker, that raises the salinity to 425,8 mg per
litre.
Stir well to ensure homogenous solution and press ↵.
The display taking into account the variations shows now
CALIBRATION 426 mg/l. Having saved the average value of 16
measurements, the SalinoMADD passes to the final phase of
calibration.