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Manual ME3011b_E_v0707_Pre.doc
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Alarm annunciators have the main function of safely signaling critical statuses of installations, aiming
at their integrity.
They signal acoustically and optically equipment alarms in a standardized way, within the highest
ergonomic and cognitive possible standard.
It is recommended, in general, to carry out the direct connection of electric field alarm signals to the
annunciator, preventing loops through digital automation and control systems. Thus, the necessary
operating safety level is achieved.
The maximum alarm signal cable length is 600 m (unshielded) or 1000 m (shielded). These
maximum values may be strongly reduced in areas with very high electromagnetic fields, for example
in the case of open air cable trays within substations. It is, also, of paramount importance to place
the signal cables in trays carrying cables with homogeneous voltages. Placing high and low voltage
cables in conjunction within the same cable tray may cause serious annunciator malfunctions or even
hardware damages.
The ME 3011 annunciator, the new member of Mauell annunciator family, keeps one of the most
important characteristics of ME 3010 series, which is the modularity of the alarm windows. The
processing fundament of the alarm signs is now carried out through latest generation micro
controllers, with high performance RISC architecture.
So, ME 3011 annunciator incorporates all the advantages of a micro processed system, such as
configuration of the annunciators main functions through the front keyboard, or also via
configuration software, available at
www.mauell.com.br
for download.
This way, the ME 3011 annunciator provides all conventional functions of alarm announcing together
with new and advanced communication function in local network and event recording, among
others.
These functions will be described in details throughout this manual.
OPERATION PRINCIPLES