JDC Electronic SA SalinoMADD User Manual
Page 7
7
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
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The multimetre mode is used for punctual measurements of water quality. The probe must be connected to the
SalinoMADD before switching it on.
On MAIN MENU select MULTIMETRE with touch
and press
. At this moment the instrument measures continuously
salinity, temperature and the conductivity of the water.
To return to the MAIN MENU, press
. In this mode, the
device will automatically switch off after about 4 minutes.
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Cleaning of the probe
Ensure that the probe is clean before starting calibration. Clear the electrodes from calcareous deposits using
a specific cleaning agent (Durgol, cleaning vinegar etc.).
In this goal, pour cleaning agent into a recipient up to the level necessary for
complete immersion of the probe's glass part which should remain in the
cleaning liquid for about 20 minutes. Rinse the probe thoroughly in order to
clear off completely the cleaning liquid, let it dry and then place it into
previously prepared half-litre of pure water.
Preparation of the calibration
Following preparation is necessary before calibrating the probe for salinity
gauging.
1. With the 100 ml calibrated tube prepare 2 doses i.e. 200 ml of
demineralized water with a conductivity not exceeding 10 μS (or a
resistivity of minimum 100'000 Ω)
2. Pour this water into a cleaned 1 litre plastic measure. For maximum
measurement accuracy, it is also possible to weigh the water i.e.
200 g of demineralized water.
3. Immerse the probe in this water and connect it to the SalinoMADD,
which must be switched off beforehand.
Before starting the calibration, the probe should have the waters temperature, which can be checked by putting
the device in MULTIMETRE mode. Ensure that the temperature remains stable. Once all parameters meet these
conditions, the calibration can be launch. Only few seconds are necessary.