ECOTEST DKG-21 M Operating Manual page 66

4.3.3.3 Programming of audio and light DER alarm
threshold levels
Audio and light alarm threshold levels of DER are
programmed in the mode of DER measurement. Press the
THRESHOLD button and hold it pressed for about 5 s to start
programming. The low-order digit will start blinking on the LCD.
Set an appropriate value of the low-order digit by shortly
pressing and releasing the THRESHOLD button. Press
shortly the MODE button to proceed to programming of
another digit, the latter will start blinking in its turn. The
necessary value of the digit is set with short pressing and
releasing the THRESHOLD button.
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