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GENERAL INFORMATION
2.4 Alarms
The SHIPSURVEYOR alarms are disabled in Combustible
Gas Indicator (CGI) mode. When operating in Conned
Space Monitor (CSM) mode, both audible and visual alarms
are active, (refer to Conned Space Monitor Operation in
Chapter 3). The audible alarm is rated at 85 dB(A). The
visual alarm consists of two (2) pairs of red LED’s ashing
alternately in the display panel.
The instrument, by default, will have alarm levels pre-set,
(refer to ‘Default Alarms’ table in Chapter 4).
It is the responsibility of the user to ensure that the alarm
levels, where set in the instrument, are appropriate for
the safe operation and legal requirements for the country
/ industry in which the unit is being used.
Latching alarms can only be cleared manually after the
detected gas level has fallen below the alarm limit.
An option allows the alarms to be non-latching. These clear
automatically when the gas levels fall below the alarm limit.
Another option allows the audible alarm to be muted.
TWA alarms, by default, are non-latching.
2.5 Datalogging
The SHIPSURVEYOR memory can store over 1000 logged
entries in date order. The memory will overwrite entries in
the event of an overow.
The instrument, by default, has automatic and manual
datalogging enabled when operating in CSM mode. Manual
datalogging allows the user to store a snapshot of the gas
readings at any time.
When the instrument is operating in CGI mode, only manual
datalogging is enabled. There is no automatic datalogging
available in this mode.
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