MX32v2
ANALOG AND DIGITAL CONTROLLER
USER MANUAL
Revision D.0
In case of system failure, the internal fault relay opens to indicate a fault status (see Figure 8:
Internal view (2 line version on top and Bridge version at the bottom)Y).
The fault relay switches over one of the following events:
• Internal error
• Loss of power
• Detector fault
• Connection failure between a measuring line and a detector
The security function is not ensured for 30 seconds after the initialization phase of the
installation (power on, reset, restart after configuration change) then during the programmable
stabilization time from 30 to 500 seconds.
It is imperative to connect the fault relay and to process this information in any installation where
an SIL level is required.
Once per year minimum, it is suggested to voluntarily trigger a fault on one of the measuring
lines, by disconnecting a detector, for example, and checking the proper switching of the fault
relay.
13.3 Specific instructions for the prevention of explosions
according to ATEX 2014/34/EU European Directive
MX32V2
controller is compliant to EN 60079-29-1:2016 standard that specifies the
performance requirements of fixed gas detection systems (gas detectors and controllers).
As such,
MX32v2
controller is certified as a safety device and can be used in systems that
contribute to reduce the risk of explosion.
The information described below must be taken into account and fulfilled by the site manager.
Refer to ATEX 1999/92/EC European Directive on requirements for improving the safety and
health of workers potentially at risk from explosive atmospheres.
• It is essential to refer to the instructions of use and commissioning of the gas detectors
that are connected to the controller.
• Detectors for flammable gases must also comply with EN 60079-29-1 standard.
•
MX32v2
controller is digitally compatible with OLCT 10N, OLCT 80, OLCT 710,
iTrans2, 700 and Meridian gas detectors.
• In the event the user connects a non-TELEDYNE OLDHAM SIMTRONICS brand detector
to the
MX32v2
controller, the user must ensure that the detector is compatible with the
input characteristics of the controller, so that the information delivered by the detector
will be properly interpreted (see transfer curve on the following page). In addition, the
controller must provide sufficient supply voltage, taking into account voltage drops in the
cable.
• Highest alarm set point for flammable gases shall not exceed 60% LEL and shall be of a
latching type.
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