ECOTEST VIRTUOSO RKG-14 Operating Manual page 91

Important: Please read these instructions carefully before starting calibration.
Disregarding the listed below recommendations might cause incorrect operation
of "VIRTUOSO"!
Recommendations on how to prepare for the energy calibration:
1 Keep the detector within the temperature range from +17 ºС to +25 ºС for
at least 1.5 hours;
2 Make sure that the batteries of your detector and Android device are
charged enough to operate for at least 2 hours;
3 Place your detector and Android device in a location with the stable
ambient air temperature ranging from +17 ºС to +25 ºС;
4 Place the detector near potassium-containing substances (e.g. potassium
chloride fertilizer) to perform a reliable and time-effective calibration;
5 Tap the "Start calibration" button (see Fig. 4.1), and do not change the
position of the detector and Android device until a message of calibration
completion appears.
Important: If during calibration the "Could not calibrate the detector.
Potassium was not found" message appears, try to change the position of the
detector (for example, place it as close to the wall of a room as possible) and
repeat calibration.
Important: If during calibration procedure the "Parameter is out of range"
message appears, please restore coefficients by pressing the "Restore
coefficients" button. Repeat calibration following the recommendations on how
to prepare for the energy calibration. If the message appears again, contact a
manufacturer.
Before the calibration starts, it is recommended that once per year factory
coefficients be restored by tapping the "Restore coefficients" button (see Fig. 4.1).
Approximate time required to perform a calibration is 15 minutes with the
use of the potassium chloride fertilizer of 1 kg weight, and no less than 1 hour
without using potassium-containing substances.
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