ECOTEST DKG-21 M Operating Manual page 62

4.3.3.2 Measurement of DER
The mode of DER
automatically after the dosimeter is switched on. This
mode can be entered from any other operating mode by
shortly pressing the MODE button. The units of
measurement are expressed in µSv/h. The process of DER
measurement accumulation and averaging will start after
the dosimeter is switched on.
The process will continue up to 1600 s at DER values
close to background. The data on the LCD will be updated
each 10 s.
measurement is entered
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