Fuji Electric NRF51 User Manual page 46

Electronic personal dosimeter (for gamma(x)-ray and neutron)
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No
Item
5
Detector optical check error
6
Memory error
7
RTC error
8
Device error
Display
When not affecting counting
.
When affecting counting
When not affecting counting
.
When affecting counting
Remarks
When detector failure
is detected by internal
LED optical pulse
check, detector optical
check error alarm is
generated.
When memory failure
occurs during data
backup, memory error
alarm is generated.
When the failure does
not affect counting
function, operation
continues.
Meanwhile, when the
failure affects counting
function, operation
stops and the dose
(rate) value would be
lost.
RTC error alarm is
generated, when Real
Time Clock (RTC) IC
error is detected.
When the error does
not affect counting
function, operation
continues.
Meanwhile, when the
error affects counting
function, operation
stops and the dose
(rate) value would be
lost.
Device error alarm is
generated, when the
electronic components
except for detector,
memory or RTC are
failure.
TN5A4215b
46/58

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