Chapter 4: Commissioning
40 Stratos EX Hazardous Area Aspirating Smoke Detection System Installation Manual
Table 3: Suggested settings for ClassiFire alarms
Alarm
factor
Sensitivity Probability of nuisance
alarm
Suggested protected area
0 Extremely High Once per year Semiconductor manufacturing clean room
1 High Once per 5 years Computer room
2 High Once per 10 years Non-smoking office
3 High Once per 50 years Clean factory
4 Medium Once per 1,000 years Warehouse
5 Medium Once per 5,000 years Warehouse with diesel trucks operating
6 Medium Once per 10,000 years Warehouse with diesel trucks operating
7 Low Once per 20,000 years Warehouse with diesel trucks operating
8 Low Once per 100,000 years Warehouse with diesel trucks operating
Acclimation period
The detector will operate at a reduced sensitivity for 24 hours. ClassiFire will set
up the appropriate day and night sensitivity settings. All air handling units,
thermostats, and other systems that can have an effect on the operating
environment should be turned on to simulate normal operating conditions as
closely as possible. After one week of monitoring time, download the detector
event log to a PC from the RS-232 port using a serial cable. Review the event log
for any unexpected messages. Investigate and correct any condition that cannot
be accounted for.
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