NIEUWKOOP PH2010, User Manual

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PH2010
pH SOILTESTER
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Practical hints
1. A fluctuating needle may have any of the following causes:
2. The soil does not completely cover the electrodes. A high salt content in the soil, a high iron,
magnesium content etc. The soil has recently been manured so that you actually measure the
manure.
3. Rust on the electrodes clean and free from rust. Surface corrosion will detrimentally affect the
sensitivity of the instrument, which in that case will no longer indicate reliable pH, and moisture
values may be removed with sand. After cleaning, wait at least half an hour before taking
readings.
4. H.T. masts or other sources of stray currents in the neighborhood of the soil to be measured are
likely to cause the instrument to give too high pH and moisture readings. Accurate readings are
impossible in places such as these.
5. The operation of the instrument being based on current generation through contact with the
soil, the readings will depend to some extent on degree in which the soil has been packed
down, and on the moisture content of the soil. It is recommended therefore to take the average
of 5 or 6 readings.
6. The instrument should be handled with the utmost care. Do not drop it, do not expose it to
strong vibrations, impact etc. We wish to emphasize that the pH-meter is meant to test
whether the soil has the correct pH value so that in case of deviation you can protect your crop
from damage in time.
7. If the result is negative, you can take action immediately and this save yourself quite a bit of
trouble. The moisture tester incorporated in the instrument is NOT intended for determining the
exact moisture content in the soil but ONLY to determine whether the soil has the right moisture
content for taking pH readings.
Specification
Scale : pH 3½ - 8
Moisture : 0 - 100%
Accuracy : 10%
Size : 160 x 50 mm
Weight : 170 grams