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"Key tone" – sound and/or vibration signals generated
when there was some manipulation with the device's controls.
These signals can be completely disabled.
2.3.2.4 Triggering of alarms when thresholds are exceeded
When the set sigma threshold alarm level is exceeded, a
flashing
icon will appear in the icon display area. The flashing
frequency of the icon is 1 Hz. A light, sound and/or vibration
alarm is also activated according to the device settings. When
the light and sound signals are turned off, the frequency of the
vibration signal will be proportional to the quanta count rate of
photon ionizing radiation.
When the set safety threshold alarm level is exceeded, the
icon appears, and the light, sound and/or vibration alarm is
activated according to the device settings.
When the set accumulated dose alarm threshold level is
exceeded, the
vibration alarm is activated according to the device settings.
WARNING! Alarms when the threshold level is exceeded
are identical for the following operating modes:
- measurement and indication of photon ionizing radiation
DER (hereinafter – DER);
- intensity histogram display;
- search diagram display;
- measurement of photon ionizing radiation DE
(hereinafter – DE);
- setting up the device.
2.3.3 Operation procedure of the dosimeter
The general algorithm of controlling the device's operation
is as follows.
As soon as switched on, the device enters the mode of DER
measurement and indication, and starts calibration by gamma
background level and testing photon ionizing radiation detector
efficiency. The duration of calibration is from 10 to 90 s
depending on the gamma background DER. The completion of
the calibration is indicated by non-blinking DER value.
icon appears, and the light, sound and/or
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