Detector Sensitivity Settings; How To Select Pre-Alarm And Alarm Sensitivity - Notifier NFS-640 Programming Manual

Appendix C: AWACS™ Applications

Detector Sensitivity Settings

How to Select Pre-Alarm and Alarm Sensitivity

Each detector provides a host of selectable intelligent options. The control panel provides nine levels of
Pre-Alarm (PA:1–PA:9) and Alarm (AL:1–AL:9) in percent per foot obscuration:
Note: * Signifies the factory default setting.
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• PA:0 no Pre-Alarm selection.
• PA:1 the self-optimizing setting where the control panel selects a suitable Pre-Alarm level for
a detector.
• PA:2–PA:9 the detector Pre-Alarm sensitivity level - with PA:2 the most sensitive and PA:9
the least sensitive.
• AL:1–AL:9 the detector Alarm sensitivity level - with AL:1 the most sensitive and AL:9 the
least sensitive.
Detector Type
Photo Electric
SMOKE (PHOTO)
1
(See note )
Ion
SMOKE (ION)
(See notes 1 and
2
)
FlashScan View
3
(See Note )
Acclimate Plus™
1. Suitable for open area protection only with 0 to 300 feet per minute air velocity.
2. Use only alarm sensitivity setting of AL=1, AL=2 or AL=3 for ION detectors installed in Canada
3. The use of alarm sensitivities below 0.50% obscuration per foot requires a 90 day test to ensure that the environment for
the detectors is suitable for the higher sensitivity setting. (Refer to "How to Test Detectors Set Below 0.50% Obscuration
per Foot" on page 91.)
Table 30 Detector Sensitivity (in percent obscuration per foot)
Alarm (FlashScan) Alarm (CLIP)
AL:1=0.50 % AL:1=0.50 %
AL:2=0.73 % AL:2=0.73 %
AL:3=0.96 % AL:3=0.96 %
AL:4=1.19 % AL:4=1.19 %
AL:5=1.43 % AL:5=1.43 %
AL:6=1.66 % AL:6=1.66 %
AL:7=1.89 % AL:7=1.89 %
AL:8=2.12 %* AL:8=2.12 %*
AL:9=2.35 % AL:9=2.35 %
AL:1=0.50 % AL:1=0.50 %
AL:2=0.75 % AL:2=0.75 %
AL:3=1.00 % AL:3=1.00 %
AL:4=1.25 % AL:4=1.25 %
AL:5=1.50 % AL:5=1.50 %
AL:6=1.75 %* AL:6=1.75 %*
AL:7=2.00 % AL:7=2.00 %
AL:8=2.25 % AL:8=2.25 %
AL:9=2.50 % AL:9=2.50 %
AL:1=0.03 % AL:1=0.03 %
AL:2=0.05 % AL:2=0.05 %
AL:3=0.10 % AL:3=0.10 %
AL:4=0.20 % AL:4=0.20 %
AL:5=0.30 % AL:5=0.30 %
AL:6=0.50 %* AL:6=0.50 %*
AL:7=0.70 % AL:7=0.70 %
AL:8=0.80 % AL:8=0.80 %
AL:9=1.00 % AL:9=1.00 %
Alarm (CLIP)
AL:1=0.50 % AL:1=1.00 %
AL:2=1.00 % AL:2=1.00 %
AL:3=1.00 to 2.00 %
AL:3=1.00 to 2.00 %
AL:4=2.00 % AL:4=2.00 %
AL:5=2.00 to 3.00%* AL:5=2.00 to 4.00%*
AL:6=3.00 % AL:6=2.00 to 4.00%
AL:7=3.00 to 4.00 % AL:7=2.00 to 4.00%
AL:8=4.00 % AL:8=4.00 %
AL:9=thermal 135 F AL:9=4.00%
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NFS-640 Programming Manual P/N 51333:B 10/03/2003
Detector Sensitivity Settings
Pre-Alarm
PA:1=Auto
PA:2=0.30 %
PA:3=0.47 %
PA:4=0.64 %
PA:5=0.81 %
PA:6=0.99 %
PA:7=1.16 %
PA:8=1.33 %*
PA:9=1.50 %
PA:1=Auto
PA:2=0.40 %
PA:3=0.50 %
PA:4=0.75 %
PA:5=1.00 %
PA:6=1.25 %*
PA:7=1.50 %
PA:8=1.75 %
PA:9=2.00 %
PA:1=Auto
PA:2=0.02 %
PA:3=0.03 %
PA:4=0.05 %
PA:5=0.10 %
PA:6=0.20 %*
PA:7=0.30 %
PA:8=0.40 %
PA:9=0.50 %
PA:1=0.50%
PA:2=1.00 %
PA:3=1.00 %
PA:4=1.00 to 2.00%
PA:5=1.00 to 2.00 %*
PA:6=2.00 %
PA:7=2.00 %
PA:8=2.00 to 3.00 %
PA:9=2.00 to 3.00 %