Honeywell NOTIFIER LCD6000T Programming And Installation Manual page 22


Threshold inversion option (default =NO)
20mA PRE-AL1
AL
P2
P1
4mA
NORMAL
20mA
PREALL.1
P1
P2
AL
4mA
NORMAL
PRE-AL.2

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
PAGE - 20
NOTIFIER ITALIA
ALARM
t
PRE-AL.2
ALARM
t
Installation manual
Doc. M-184.1-LCD6000T-ENG Rev A.2
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
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
LCD6000
LCD6000_manu