4
the unit detects a concentration level above the alarm threshold
or in case of a fault detected on any zone.
(
Auxiliary relay management)
$X[LOLDU\UHOD\PRGH
Sets the auxiliary relay reset mode.
$X[UHOD\PJPW
UVW!HQW
Ø
press ’enter’, then ’>’
Ø
$X[UOPRGH231
Pressing ’+’ or ’-’ cycles
UVW!HQW
between ’OPN’ and ’LCK’
x
/&.
(locked): when the auxiliary relay is energized it remains
energized even in case the triggering event is removed, i.e. the
event is ’latched’. In order to reset the relay press the ’reset’
button.
x
231
(open): when the auxiliary relay is energized and then the
triggering event is removed, the relay returns to its former state,
i.e. the event is not ’latched’.
(
Auxiliary relay management)
$X[LOLDU\UHOD\ORJLF
Sets the auxiliary relay logic.
$X[UHOD\PJPW
UVW!HQW
Ø
press ’enter’, then ’>’ twice
Ø
$X[UOPRGH125
Pressing ’+’ or ’-’ cycles
UVW!HQW
between ’NOR’ and ’REV’
x
125
(normal): any triggering event turns the relay on.
x
5(9
(reverse): the relay is normally energized. In case of a
triggering event the relay is de-energized. Use this mode when
a ’positive safety’ mode is required, because even in case of
lack of power supply the relay is de-energized, thus granting a
higher level of safety.
(
Auxiliary relay management)
$X[LOLDU\UHOD\VWDUW
Sets the auxiliary relay start mode when power is first applied or
after a power lack.
$X[UHOD\PJPW
UVW!HQW
Ø
press ’enter’, then ’>’ 3 times
Ø
$X[UOVWUW',6
Pressing ’+’ or ’-’ cycles
UVW!HQW
between ’DIS’ and ’ENA’
x
',6
(disabled): the relay is activated according to the current
triggering events.
x
(1$
(enabled): the operator must start the operation by
intentionally arming the system. In other words the auxiliary
relay is kept indefinitely inactive (according to other mode
settings) until the operator intentionally presses the ’reset’
button. Choose this mode when a human intentional reset is
required after a power lack.
&KDQJHGDWHWLPH
Allows for setting of the current date and time.
Proper adjustment for current date and hour is mandatory for the
correct recording of the last alarm state.
This adjustment must be performed when the central unit is first
operated: from this moment on the unit will retain the correct date
and time even in case of power lack, thanks to the internal real
time clock and backup battery (allow 24h of charging time in case
of first operation).
&KDQJHGDWHWLPH
UVW!HQW
Ø
press ’enter’
Ø
Pressing ’<’ or ’>’ cycles
\\PPGGKKPP
through yy,mm,dd,hh,mm
Pressing ’+’ or ’-’ sets the
desired value
Ø
press ’enter’
to store data
&KDQJHSDVVZRUG
Sets new password.
The password is made of 4 numbers (no letters), each in the
range 0 .. 9.
&KDQJHSDVVZRUG
UVW!HQW
Ø
press ’enter’
Ø
Pressing ’<’ or ’>’ cycles
6HWQHZSZ
through single digits
UVW!HQW
Pressing ’+’ or ’-’ sets the
desired value for each digit
Ø
press ’enter’
stores data
D
127(
x
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RIWKHUHPDLQLQJSDUDPHWHUV
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IDFWRU\YDOXHLHDVZHOODV$//RWKHUSDUDPHWHUV
0HVVDJHVRQWKHFHQWUDOXQLWGLVSOD\
In the following are described the messages on the central unit
display in different conditions. It is assumed that the Zone 1 has
been set for Methane gas and the actual concentration is varying.
]RQH
]RQH
0HVVDJHGLVSOD\HG
0BB
([SODQDWLRQ
’Zone inactive’
The relevant zone has not been activated. Remember that once a
transmitter has been wired to an input the relevant zone must also
be activated in configuration.
]RQH
]RQH
0HVVDJHGLVSOD\HG
0B
([SODQDWLRQ
’Normal operation’
This is what display shows during normal operation. Concentration
detected in this example is 0% L.E.L.
]RQH
]RQH
0HVVDJHGLVSOD\HG
0)
The yellow led flashes in correspondence with the symbol ’
D
’
and the buzzer sends an intermittent tone.
([SODQDWLRQ
’Fault in the current loop line’
Cable connecting the transmitter to the central unit present either
a short or an open circuit failure between any of the sensor wires.
R
G
Y
S
00 M
B
P
4
S
E
019179D
0 2004
11
