ECOTEST MKS-UM, Operating Manual, Page: 61 / 119

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Figure 2.20 – LCD of the dosimeter
(submode of the alarm threshold level and the specified limits of statistical
deviations programming)
Programming of the alarm threshold level and specified limits of statistical
deviations when beta radiation characteristics are measured is similar to
programming of the alarm threshold level and specified limits of statistical deviations
in the event of photon-ionizing radiation DER measurement (2.3.6.5.3.2 of this OM).
Important! Programming of a zero threshold level switches off this threshold
alarm.
Programming of a zero value of the specified limits of statistical deviations
starts automatic determination of the specified limits of statistical deviations by the
dosimeter depending on the radiation intensity.
Important! If the submode of the alarm threshold level and the specified limits
of statistical deviations programming is paused for more than 20 seconds (the user
will not click any button), the control unit automatically returns to the mode of
measurement results display obtained from the probes or detectors. All changes that
have been made in the submode of new values programming will be canceled.
2.3.6.6.4 Measurement and saving gamma radiation component for
further consideration of its impact on the results of beta radiation
characteristics measurement
2.3.6.6.4.1 ABG probe does not require any other actions with regard to
measurement of gamma-component when beta radiation characteristics are
measured. Gamma-component impact is automatically considered. If gamma-
component exceeds the value of 2 mSv/h, measurement of beta radiation
characteristics becomes impossible, and “-oG-” symbols are displayed on the LCD
of the dosimeter.
2.3.6.6.4.2 Before measurement of beta radiation characteristics using BG
probe, it is necessary to measure and save the value of gamma radiation component
as close to the surface to be examined as possible. Further, this value will be
automatically considered when measuring beta radiation characteristics. To do this,
the control unit should be in the mode of "Measurement results display obtained from
the probes or detectors" (2.3.6.6.2 of this OM). The selected dimension of
measurement results display is not important.