MX32v2
ANALOG AND DIGITAL CONTROLLER
USER MANUAL
Revision D.0
Orange indicator of high-range excess (OVS: overscale, high-range excess). This
value is adjustable up to 110% of the range.
• Off: The measurement is lower than the OVS value programmed.
• Lit: The measurement is higher than the OVS value programm
relays are activated in accordance with the program. In parallel, the display
indicates « > ».
OVS acknowledgement must be done manually and is only possible if the current
value drops below the programmed value.
Management of “Non-Ambiguity
Reading”
The
Non-Ambiguity Reading
function only applies to the monitoring of
flammable gases in a range of 0-100%LEL, and is subject to the decision of the
operator. Upon the detection of a concentration of gas higher than 100% LEL, the
LCD indicates
> 100% LEL – Frozen value – High Concentration - System in Fault
Condition
. The OVS and FAILURE indicators are activated. Such an alarm can only
be deactivated by turning off the detector
via the maintenance menu once the
current gas level is below the programmed OVS limit.
ALARM
3ALARM
2ALARM
1
Alarm status red indicators:- Off: No alarm
- Solid: at least one gas detector of the corresponding zone is in alarm condition.
Acknowledgment is programmed in automatic mode or
located on the front panel has already been pushed.
- Blinking: at least one gas detector of the corresponding zone
condition. Acknowledgment is programmed in manual mode and has not been
required yet.
Orange indicator of low- range excess (UDS: Under scale, low-range excess). This
value is adjustable from 0-10% of the range.
• Off: The measurement is higher than the UDS value programmed.
• Lit: The measurement is lower or equal than the UDS value programmed. The
alarms of the relays are activated in accordance with the programming. In
parallel, the display indicates « < ».
Reset of the UDS is automatic once the failure is fixed.
FAULT
Orange failure indicator Off: No Fault
• Solidt: Communication problem with one of the modules or invalid detector
measurement, that is to say either below -10% of the range or above 110% of
the range.
• Blinking: Controller in maintenance mode (test, calibration).
Reset of the FAULT is automatic once the failure is fixed.
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