SL-014 v1.6 Page28
Document Ref: SL-014 v1.6
Alarm Presets
Three alarms levels can be set against each detector channel on the system. The channel range, gas type
and units of measurement are uploaded during a FIND from the detector itself and cannot be altered from
the controller.
The alarm levels set against each detector channel are based on the type and range. The controller
automatically sets alarm levels. The levels set are published in IGD document “OIGD193". Always refer to
the latest version of this published in the downloads section of the IGD website. The enclosed sample
document is for indication only, levels will change as new guidance is issued by governing authorities.
The following should be noted:
1. At least Alarm Level 1 MUST be set and it MUST be greater than 5% of range.
2. The Alarm Level 1 relay on the controller cannot be altered and is always set to be the first alarm level.
3. Alarm levels can be altered via the menu system if required but MUST reflect published data to be
effective for compliance to DSEAR, COSHH and similar national requirements.
4. Default values reflect UK requirements which may differ in other countries, check and adjust as
appropriate.
5. There are no limitations as to how the second and third alarm levels are set.
