display. The central unit takes care of converting proportionally all
values between 4 and 20mA into the correct value from 0% (or
0ppm) to the full scale.
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Ø
press ’enter’, then ’>’ twice
Ø
Pressing ’+’ or ’-’ cycles
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from 1% to 100% (LPG and MET)
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and from 1ppm to 999ppp (CO)
D
:$51,1*
x
7KHYDOXHWRVHWIRUWKLVSDUDPHWHULVVWULFWO\GHSHQGDQWRQ
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DVIXOOVFDOHP$LQWKHWUDQVPLWWHUDWGHVLJQWLPH
x
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(Zone1 management)
=RQHSUHDODUPWKUHVKROG
Sets the pre-alarm threshold level for Zone 1, in % LEL for
combustible or ppm for toxic. This is the gas concentration value
at which a first level of attention is needed because the
environment is becoming dangerous.
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Ø
press ’enter’, then ’>’ 3 times
Ø
Pressing ’+’ or ’-’ cycles
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from 1% to 100% (LPG and MET)
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and from 1ppm to 999ppp (CO)
D
:$51,1*
x
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(Zone1 management)
=RQHDODUPWKUHVKROG
Sets the pre-alarm threshold level for Zone 1, in % LEL for
combustible or ppm for toxic.
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Ø
press ’enter’, then ’>’ 4 times
Ø
Pressing ’+’ or ’-’ cycles
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from 1% to 100% (LPG and MET)
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and from 1ppm to 999ppp (CO)
D
:$51,1*
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(Zone1 management)
=RQHSUHDODUPPRGH
Sets the pre-alarm relay retention mode (latching or non-latching).
In order to reset the relay in case the latched mode has been set
and the pre-alarm happened, just press for a few seconds the
’reset’ key: the display will show the date and time when the
prealarm was triggered.
Even in case the non-latched mode is selected, shoul a pre-alarm
event be triggered, the relevant date and time is acquired; it can
be displayed by pressing for a few seconds the ’reset’ key.
=RQHPDQDJHPHQW
UVW!HQW
Ø
press ’enter’, then ’>’ 5 times
Ø
=RQHSUPRGH2
Pressing ’+’ or ’-’ cycles
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between ’O’ and ’L’
x
2
: Pre-alarm relay is non-latched.
x
/
: Pre-alarm relay is latched.
D
:$51,1*
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$X[LOLDU\UHOD\PDQDJHPHQW
Configures the auxiliary relay operation.
$X[UHOD\PJPW
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Ø
press ’enter’
Ø
$X[UORQ',6$%
Pressing ’+’ or ’-’ cycles
UVW!HQW
between ’DISAB’, ’FAULT’,
’PR+AL’, ’ALARM’, ’AL+FA’
Ø
$X[UORQ)$8/7
UVW!HQW
Ø
$X[UORQ35$/
UVW!HQW
Ø
$X[UORQ$/$50
UVW!HQW
Ø
$X[UORQ$/)$
UVW!HQW
x
',6$%
(disabled): the auxiliary relay operation is disabled.
x
$/$50
(alarm): the auxiliary relay is energized whenever the
unit detects a concentration level above the alarm threshold for
any zone.
x
)$8/7
(error): when this mode is selected the auxiliary relay is
energized whenever the unit detects either a fault in the
transmitter or a fault in the current loop for any of the zones.
x
35$/
(palarm): the auxiliary relay is energized
whenever the unit detects a concentration level above the
prealarm threshold (i.e. also above the ’alarm’ threshold) for any
zone.
x
$/$50
(alarm): the auxiliary relay is energized whenever the
unit detects a concentration level above the alarm threshold for
any zone.
x
$/)$
(alarm+fault): the auxiliary relay is energized whenever
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
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Ø
press ’enter’, then ’>’
Ø
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