Honeywell 6820 Manual page 117

Basic Operation
A screen similar to those shown below will display.
Example of detector in compliance
SMOKE PHOTO
detector ID
MODULE_33 POINT_4
[Z001] [M33:004] A058
detector state NORMAL
ATL=151 (2.5% OB/FT)
ACA=057 M=093 T=109
Clear Air = 058 (01%)
Peak-061 (04%) >=HLP
Possible states:
• NORMAL: detector sensitivity in compliance with UL and not in alarm
• ALARM: detector in alarm
• CAL MAINT: detector needs maintenance, but not yet in trouble
• CAL TRBLE: detector not in compliance with NFPA72
(Other trouble states could override this message.)
Example of CO detector in compliance
CO SMOKE
detector ID MODULE_33 SENSOR_4
[Z001] [M33:004] AXXX
Sensitivity = 2.0%
CO= xxx ppm
6820/EVS Manual — P/N LS10144-001SK-E:E 4/6/2022
percent obscurity
2.5%
per foot
>=MORE
percent obscurity
2.0%
per foot
Figure 9.5 Checking Detector Sensitivity Compliance on 6820
Example of detector not in compliance
SMOKE PHOTO
MODULE_33 POINT_4
[Z001] [M33:004] A058
CAL TRBLE
detector state
ATL=151 (2.5% OB/FT)
ACA=057 M=093 T=109
Clear Air = 058 (01%)
Peak-061 (04%) >=HLP
ATL=Alarm Threshold
ACA=Average Clr Air
M=Maint Threshold
T=Trouble Threshold
System Operation
blanks indicate
---%
detector not in
compliance
current value
>=MORE
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