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Installation manual
LCD6000
NOTIFIER ITALIA
Doc. M-184.1-LCD6000T-ENG Rev A.2
LCD6000_manu
Threshold inversion option (default =NO)
Tracking
option
By enabling the
tracking
option when the device exceeds the alarm threshold the control unit activates the
following indications:
- Output modules associated through CBE
- Active Buzzer on LCD-6000T
- Device indication on the LCD-6000T display
When the device returns to its normal status
the output modules associated through CBE return idle,
while
the following signalling are still active:
- Active Buzzer on LCD-6000T
- Indication of the device on the LCD-6000T display
The Reset procedure must be performed for all signallings on the LCD-6000T
The diagram in the figure shows the operation feature of a
“TEC3” device programmed with
threshold inversion
option
= NO.
As you can see the operation feature is to increase the
current values.
Therefore the thresholds must satisfy the following
rule:
P1< P2 < AL
It can be used for esplosive gas detection sensors
20mA
4mA
AL
P1
P2
t
The diagram in the figure shows the operation feature of a
“TEC3” device programmed with
threshold inversion
option
= YES.
As you can see the operation feature is to decrease the
current values.
Therefore the thresholds must satisfy the following
rule:
P1< P2 < AL
It can be used for oxygen deficiency detection sensors
4mA
P1
20mA
P2
AL
t
NORMAL
PRE-AL1
PRE-AL.2
ALARM
NORMAL
PRE-AL.2
PREALL.1
ALARM