Nexus 21 A1557 - Manual (Page 17)

Document Ref: Nex8inst.doc/Rev0 09.07.00 Page 17 of 30 Originator MC Checked by AC__
This gives the option of adjusting the alert trip level of individual devices to suit particular
installation conditions. To adjust the trip level follow the procedure below:
At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 0:EXTENDED MENU.
S E L E C T L E V E L 2 O P T I O N
1 : A L E R T T R I P L E V E L S
2 : F I R E T R I P L E V E L S
* N E X T P A G E # Q U I T
Select
1: ALERT TRIP LEVELS & follow on-screen instructions, selecting loop & device no.
By repeatedly pressing the button designated TOGGLE, the engineer may view the various pre-
alarm levels available.
The required level may be selected by pressing
*
OK, then
#
to quit.
5.15 Fire Trip Level
This gives the option of adjusting the fire trip level of individual devices to suit particular
installation conditions. To adjust the trip level follow the procedure below:
At Step 4 within the Engineer’s Menu (see Section 5.3 above), select 0:EXTENDED MENU.
Select 2: FIRE TRIP LEVELS.
By repeatedly pressing the button designated TOGGLE, the engineer may view the various fire
trip levels available.
The required level may be selected by pressing
*
OK, then
#
to quit.
5.16 Panel
Delay
This gives the option to have a delayed response of panel and loop alarms & auxiliary relays to
a fire condition. This facility is programmed to be active during a specified period of the
day/night. The engineer must firstly set the time on/off period; this is the time of day/night
during which - if an alarm event were to occur - a delay would be effective. Secondly he must
select the period of the delay (1 - 10 minutes). Thirdly he must enable the delay for it to be
effective.