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Mirion Technologies GEM-5 User Manual

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Chapter 5 Parameters Definition
146
using the F3 Calibration screen on page 121 and calibrated if necessary, following
which the Due For Recalibration date/time on this screen should be reset to the next
scheduled time.
A setting of “WARN” leaves the unit in service and the Due For Recalibration
instruction is displayed during Alarm Tests.
Single detection zones using Factory Default Efficiency are always Due for
Recalibration, hence this item should be set to “NO” if using Factory Default
Efficiency. Sum zones using Derived Efficiency, however, are not considered Due
for Recalibration.
Recalibrate Year/Month/Day/Hour or After xxx Days:
When Due for Recalibration (previous item) is set to “YES” then recalibration
becomes due either on a fixed date or xxx days after the previous calibration,
whichever is sooner. All detection zones are marked due for recalibration on the
specified date and time. Individual detection zones become due when their
calibration is older than the number of days specified. After reviewing the
“Calibrated” date for all detection zones, use the +/- keys to enter the date and time
for the next calibration. If the specified date and time is left blank then only “After
xxx Days” setting is applied.
Verification Failed: Choices “No” or “Yes” (default). Unavailable unless Alarm
Test is set to “Verification test.
Due for Alarm Test: This setting will take the unit out of service if the After...Days
date has passed (see below). Choices NO (default) or YES.
After (days): Range 1 to 3653 days. Default 7 days.
Note: When a unit goes out of service with this fault then the fault has to be
manually cleared on the F4 – Fault screen. This extends the time by one day
so that if the monitor is not alarm tested within a day it will go out of service
with this fault again.
Temperature: The installed board can be checked on the Carrier Board Tests screen.
Choices are “YES” (default) and “NO”. A “YES” setting will take the unit out of
service if the Carrier Board temperature sensor indicates high temperature (i.e.,
> 70°C or 158°F).
+12Volt Board fault: Choices NO or YES (default). A measured voltage of
< 11 Volts sets the fault.
Conditional Service Allowed: This setting determines the number of days that the
monitor is allowed to remain operational with one or more detectors in conditional
service. Placing a detector in conditional service, in the event of a missing or failed
detector, is performed in the F4 - Faults screen. The intent of this feature is to return
the monitor to temporary service while waiting for a replacement detector. The range
is 0 to 7 days with a default setting of 3 days. Zero days indicates that conditional
service is not allowed. When the allowed time has elapsed the monitor goes Out of

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Mirion Technologies GEM-5 Specifications

General IconGeneral
BrandMirion Technologies
ModelGEM-5
CategoryMonitor
LanguageEnglish

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