Nexus 21 A1557 technical specifications Fire Trip Level, Panel Delay

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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.

5.15Fire 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.

5.16Panel 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.

Document Ref: Nex8inst.doc/Rev0 09.07.00

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Contents Contents User Controls & Indications Exploded View and Mechanical Data/Text IdentificationDisplay LBAR1 Lithium BatteryNC1 Power Supply IllustrationLoop Card Expansion Motherboard Ii A1536 8 Way Programmable Input/Output Alarm BoardProgrammable Expansion Boards A1535 8 Way Programmable Input/Output Relay BoardImportant Notes on Batteries Document Ref Nex8inst.doc/Rev0 Number Loops Overview of Engineer’s Menu Options Access level 1278Access level 8812 Accessing Engineer’s MenuIsolate Setting Time & DateDevice Status Configure LoopEdit ADR VAL Type STS CMD Status Disabled/EnabledStatus To Printer Zones Alarm Test Loop ContentsExtended Menu Alert Trip LevelFire Trip Level Panel DelayProgramming the Number of Displays Repeaters Read MemoryClear Print Queue Print Cause and Effect Data Print Memory ContentsOptions Available at Access Level Commissioning Introduction ChecklistPre-Commissioning Wiring Check An Overview of the Commissioning ProcedureCommissioning Procedure Alarm CircuitsCommissioning Loops Auxiliary Circuits Cause & Effect TestingCause & Effect Editing Final CommissioningTechnical Specifications Ii Other Relevant Documentation 1XX Iii Compatible Loop Devices and Panel Responses= LED = LED Is in fire Fault Data fault AV = 0 to Operation and is