ECOTEST SPECTRA MKS-11GN Operating Manual page 10

1.2.5 The safety threshold level is adjusted in the format
XXX.YY in µSv/h or mSv/h. The minimum safety threshold level
may not be less than 0.3 µSv/h.
The device notifies on exceeding of this threshold level with light
(red), vibration, or sound signals "Safety threshold exceeding".
Any combination of alarms is possible, while at least one type must
remain. On the screen of the device appears a corresponding icon
that duplicates the alarm.
1.2.6 The conditional threshold alarm level by a neutron channel
is set with the values from 1 to 9, where 1 is the highest sensitivity of
the device to neutron radiation (but also the greatest probability of
false positives), and 9 is the lowest sensitivity and lowest probability
of false positives. Programming resolution – 1. The device notifies
on exceeding of this threshold level with light (blue), vibration, or
sound signals "Neutron threshold exceeding". Any combination of
alarms is possible, while at least one type must remain. On the screen
of the device appears a corresponding icon that duplicates the alarm.
1.2.7 Threshold level by the accumulated dose is adjusted in the
XXX.Y format in µSv/h and mSv/h, and in the X.YYY format in Sv.
While the DE threshold level can be set to 0, the alarm on exceeding
the DE threshold level will be turned off. Otherwise, when the DE
threshold level is surpassed, the device notifies by a light (red),
vibration, or a sound signal "Accumulated dose threshold
exceeding". On the screen of the device appears a corresponding
icon that duplicates the alarm.
1.2.8. The device's threshold alarm on exceeding of the search
threshold level triggers no later than in 2 s after the level of photon-
ionizing radiation increases above the background value (with
photon-ionizing DER level of 0.1 µSv/h) to the DER level of 0.5
µSv/h for a maximum time of 0.5 s.
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