Appendix
The sensitivity settings and suggested applications for each setting are listed in the following table.
Suggested Application
Details
Ultra Clean environments -
3.28% per metre of smoke or greater than 45 ppm of CO.
Laboratories
No delays from processed photo output.
Clean environments - Offices
6.56% per metre of smoke. No delays from processed
photo output
Moderately clean environments
–
9.84% per metre of smoke. No delays from processed
Hotel/Dorm rooms
photo output.
Moderate environments
– hotel near
9.84% per metre of smoke. Maximum of 10 minutes delay
shower, boiler rooms
from processed photo output. See notes.
Harsh environments
– Equipment
13.12% per metre of smoke. Maximum of 10 minutes delay
rooms, kitchens, night clubs
from processed photo output. See notes.
Harsh environments
Heat only alarm. If the heat level on either thermistor
exceeds 60°C or rate of rise limits.
Notes: - The delay counter starts when the smoke level exceeds approximately 2.46% per metre. Maximum of 10
minutes delay from processed photo output. If there is a detection of another fire signature (Carbon
Monoxide, Infrared or Thermal) the detector overrides the 10 minute confirmation time.
- Use of AVF function is not permitted by AS1670.1 at sensitivity levels 4, 5 and 6.
- Level 6 may be used with day/night settings to provide heat only detection during certain times of the day.
9
9
.
.
5
5
.
.
5
5
D
D
R
R
I
I
F
F
T
T
C
C
O
O
M
M
P
P
E
E
N
N
S
S
A
A
T
T
I
I
O
O
N
N
Drift compensation uses algorithms that identify and compensate for long term changes in the Analog readings
from each smoke detector. (Typically, dirt and dust accumulation inside the smoke chamber causes long-term
changes in detector readings.) Drift compensation does the following:
• ALLOWS A DETECTOR TO RETAIN ITS ORIGINAL ABILITY TO DETECT ACTUAL SMOKE, AND RESIST FALSE ALARMS, EVEN AS DIRT
and dust accumulates.
• REDUCES MAINTENANCE REQUIREMENTS BY ALLOWING THE control panel to automatically perform the periodic
sensitivity measurements.
The software also provides smoothing filters to remove transient noise signals, usually caused by electrical
interference. Different smoothing algorithms are used, depending on the sensitivity selection of each detector.
The software determines when the drift compensation for a detector reaches an unacceptable level that can
compromise detector performance. When a detector reaches an unacceptable level, the control panel indicates a
maintenance warning. The table below summarizes the three levels of Intelligent Sensing maintenance warnings:
Detector Fault
Indicates
Detector Compensation Percentage
Message
Range
Ion
Photo
Laser
Acclimate
Smart 4
IntelliQuad
N/A
Compensation is within recommended range.
6 - 91
6 - 91
3 - 82
0 - 79
LOW THRESHOLD
A hardware problem in the detector.
0 - 5
0 - 5
0 - 2
N/A
MAINTENANCE
Dust accumulation that is near but below the
92 - 99 92 - 99 83 - 99 80-99
REQ
allowed limit. The Maintenance Required is an
alert level that indicates the need for
maintenance before the performance of the
detector is compromised.
MAINT.URGENT
Dust accumulation above the allowed limit.
100
100
100
100
A drift compensation value above the recommended range indicates that the detector should be cleaned for
optimum performance. Note that the drift compensation values for Acclimate and IntelliQuad detectors can only
be accessed through the read status menu if the loop in running in FlashScan mode. The drift compensation
value for a multi criteria detector is not available in CLIP mode.
AFP-2800/2802 Manual
– P/N DOC-01-011
108
Sensitivity
Level 1
Level 2
Level 3
Default
Level 4
Level 5
Level 6
Summary of Contents for AFP-2800
Page 139: ...Appendix 9 12 PANEL EXPANSION RELAYS AFP 2800 2802 Manual P N DOC 01 011 139...
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