Option/Property Allowed values and explanation
Range For %LEL and %VOL the range can be 0 to 1, 2, 2.5,
5, 10, 20, 25, 50 or 100.
For ppm the range can be 0 to 1, 2, 2.5, 5, 10, 20, 25,
50, 100, 200, 250, 500, 1000, 2000, 2500, 5000,
10000. For the 10000 range, the maximum display is
9990.
Out of range values Interpret High and Interpret Low. Each option can be
set to Info, Inhibit or Fault.
For details, see section 4.4.2.
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
is either Rising or Falling.
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.
For details, see section 4.4.2.
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.
Relays
Identity 8-character string used to identify the relay
Enabled On/Off. A relay must be enabled and configured to
participate.
Type This can be set to Not Configured, Non-Latching,
Non-Latching Acceptable, Latching, Latching
Acceptable, Pulsed or Reset Pulse. Unused relays
must be set to Not Configured. Explanations are
given in section 4.5.2.
ON delay time The waiting period before the relay is activated.
Where applicable, 0 to 65535 seconds.
OFF delay time The waiting period before the relay is de-activated,
except for Pulsed and Reset Pulsed, where it is the
period for which is relay is activated. Where
applicable, 0 to 65535 seconds.
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