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PH2010 pH SOILTESTER _____________________________________________________________________________________________ How to use the pH-meter Take the instrument out of its case and check that the needle indicates pH 7 (fig.1). If this is not the case it can be very simple adjusted. Remove the cover and glass window from the instrument and carefully turn the adjusting screw clockwise or counter-clockwise, as the case may be.
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PH2010 pH SOILTESTER _____________________________________________________________________________________________ Practical hints A fluctuating needle may have any of the following causes: 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.