Zeta Alarm Systems ZT-20EX, Руководство пользователя

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User Guide of ZT-20EX & ZT-500EX
9
Table 2.
DIP Switch Settings
Notes:
(1). The detector offers four (4) sensitivity settings. The settings refer to the n-Heptane
fire of 1ft-sq.
(2). When an Alarm (Detection) level condition is encountered, the detector delays the
execution of the Alarm output relay by the specified period of time. The detector will
then, additionally, evaluate the fire condition during the specified Alarm Delay Time.
If the Alarm level is still present, the Alarm outputs will be activated. If this condition
no longer exists, the detector will return to its standby state. The LED will indicate
warning level during the delay time only if the fire condition exists.
(3). The detector has a selectable latched alarm output capability, which operates
according to the selectable function. If selected, upon the detection of a fire, the
detection signal is latched until manually reset (disconnecting the power supply or
DIP Switch Position No.
Mode Selections
1 2 3 4 5 6 7 8
 
Sensitivity Range (1)
OFF-OFF(00) : Highest
OFF-ON(01)
: High
ON-OFF(10) : Medium<default>
ON-ON(11) : Low
 
Alarm Delay Time (2)
OFF-OFF(00) : 1 sec
OFF-ON(01)
: 3 sec
ON-OFF : 5 sec
ON-ON : 7 sec<default>

Alarm Latch Setting (3)
OFF(0) : 20 sec<default>
ON(1) : until reset

Reserved (for design setting)
OFF(0) : <default>

Reserved (for design setting)
ON(1) : <default>

Alarm Relay Setting (4)
OFF(0) : N.O<default>
ON(1) : N.C
1 2 3 4 5 6 7 8
:ON
“(1)”
:OFF
”(0)”
ON
(OFF)