Crowcon Vortex Installation, Operation And Maintenance

Vortex
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VORTEX TECHNICAL
Property Configuration
Out of range values -
Interpret High and
Interpret Low.
Each option can be set to Info, Inhibit or Fault. They
specify how the system should respond to values that are
under-range and over-range, respectively. The low region
is 1 to 3 mA and the high region are 21.5-24.5 mA.
Info
If Interpret High is set to Info, the display shows “Hi” and
the nominal gas level is treated as full scale.
If Interpret Low is set to Info, the display shows “Lo” and
the nominal gas level is treated as zero.
No fault is indicated. The Hi and Lo flags can be used for
voting in the relay logic.
Inhibit
If Interpret High is set to Inhibit, the display shows “In”
and the nominal gas level is treated as full scale.
If Interpret Low is set to Inhibit, the display shows “In”
and the nominal gas level is treated as zero.
The Inhibit signal for this channel can be used for voting
in the relay logic.
Fault
If either region is set to Fault then the under-range or
over-range fault is generated for the channel. This is
intended to catch short-circuit faults (High) and open-
circuit faults (Low).
Alarm Levels 1, 2 and 3 The alarm thresholds must be set within the range for the
detector, using the units specified. The alarm level must
be set to either Rising or Falling. The resolution of the
Alarm Levels is the same as that of the Vortex system.
It is not necessary for Alarm 1 to be the lowest and Alarm
3 to be the highest. Alarm 3 is not indicated and does not
cause the sounder to operate
Zero Suppression
On/Off. The default is On. When this option is selected,
the readings less than 3% of full scale are suppressed to
zero.
Fire detectors
Current thresholds
The current thresholds must be set within the range 0 to
60mA, in the order
Open Circuit < Fire < Short Circuit
Reset Time
Between 0 and 255 seconds. The time that the loop current
is removed to reset a latched fire detector on pressing
ACCEPT/RESET after a fire alarm.
Stabilisation Time
Between 0 and 255 seconds. The time allowed for the fire
detector to stabilise after a reset before coming on line.
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Crowcon Vortex Specifications

General

Brand	Crowcon
Model	Vortex
Category	Control Panel
Language	English