ECOTEST PRD GUARDER DKG-24 Operating Manual page 10

1.2.3.2 The safety threshold level is programmed in
XXX,YY format in μSv/h or mSv/h. The minimum safety
threshold level can be at least 0.3 μSv/h. When this threshold
level is exceeded, the device signals with a light (red), vibration
or sound signal "Safety threshold exceeding". Any
combination of alarms is possible, while turning off all types of
alarms is impossible. The alarm is duplicated by the
corresponding icon on the device's display.
1.2.3.3 The accumulated dose threshold level is
programmed in XXX,Y format in μSv and mSv, and in X,YYY
format in Sv. The DE threshold level can be set to 0, while the
alarm on exceeding the DE threshold level will be disabled.
Otherwise, when the DE threshold level is exceeded, the device
signals with a light (red), vibration and sound signal
"Accumulated dose threshold level exceeding". Any
combination of alarms is possible, while turning off all types of
alarms is impossible. The alarm is duplicated by the
corresponding icon on the device's display.
1.2.4 The frequency of false alarms for photon ionizing
radiation is no more than 1 per 10 hours when working in a stable
background environment and the following threshold values:
- search – 5;
- safety – 1 μSv/h;
1.2.5 The device implements the possibility of automatic
keeping an event log in the non-volatile memory, namely:
- turning on the device;
- turning off the device;
- exceeding the search threshold level;
- exceeding the safety threshold level;
- exceeding the accumulated dose threshold level;
- saving the measurement at the user's command;
- saving the measurement after a set period of time or a set
distance;
- erasing the device's flash memory.
1.2.6 The volume of non-volatile memory allows storing up
to 65536 records of the registered event.
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