ECOTEST DKG-21 Operating Manual page 44

4.3.3.5 Indication of DE measured value
Press shortly the MODE button to enter the mode of DE measurement
indication. This mode follows the mode of DER measurement. The "mSv"
symbol that appears on the dLCD indicates you have entered the appropriate
mode.
If during operation of the dosimeter DER exceeded the upper limit of the
measurement range, the measured DE value may be incorrect (too low). In this
case, a blinking decimal point in the mode of DE measurement indication may
indicate to a possible incorrectness of DE value.
4.3.3.6 Programming of audio and light DE alarm threshold levels
Audio and light alarm threshold level of DE is programmed in the mode of
DE measurement indication.
Press the THRESHOLD button and hold it down for about 5 s until the
low-order digit starts blinking on the dLCD to start programming. During
programming of the threshold level, the "ALARM" transparency will be also
displayed on the dLCD.
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