-
Depending on the communication protocol, not all of these types are available.
[1
Aritech Series 900 only
See the Gas Control Unit Manual (GC900 Operating Manual) for further details
[2
Aritech Series 2000 only
• Day Level: 1 — 5 - Default 3 (Smoke and heat detectors only)
The fire alarm and precondition threshold
for smoke and heat detectors is set. The
level entered (1-5) results in an initial
alarm level. Values received from the
monitoring device are compared to its
current alarm level. When the alarm level
is exceeded a fire alarm occurs. This level
also defines a precondition threshold —
*See table below. The alarm level is further
modified by the compensation applied to
the device. Where zones are enabled for
day/night operation the night level is
always one less than the day level except
when the day level is set to one. Day level
3 is the recommended EN54 threshold for
ionisation and optical smoke detectors.
SMOKE DETECTORS HEAT DETECTORS
0% Compensation Maximum Compensation
°°C
Level Fire Alarm Precondition Fire Alarm Precondition Fire Alarm Precondition
1 80 60 170 150 40 30
2 95 75 170 150 55 45
3 110 90 170 150 70 60
4 125 105 170 150 85 75
5 145 120 170 150 100 90
• Device Text: - Up to 80 characters (2 lines x 40
characters) of user definable
alphanumeric text can be assigned to
each device. In the case of I/O devices
the text in these menus will be used for
fault warning of those devices. The
actual inputs and outputs of each I/O unit
can have further text defined in the I/O
Programming Menus (see Page 92). It is
strongly recommended that the
upload/download program be used for
text. The keypad is generally used to
modify text that has already been
downloaded.
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