02
NISM/STPA/02
DATE:
PAGE:
No:
ISSUE:
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5
7
ST-P-AS
ANALOGUE-ADDRESSABLE
PHOTOELECTRIC SMOKE SENSOR
INSTRUCTION MANUAL
MARCH 2001
screen. The solvent supplier should be consulted as to
it’s suitability.
Under no circumstances should the fully assembled
detector be cleaned without disassembly as this may
cause damage to the special treatment applied to
specific components within the detector.
Section 7 - SPECIFICATION
Model Reference:
-
ST-P-AS
Computer Reference:
-
81100
Sensor Type:
Photoelectric smoke
sensor
Operating Current:
-
200
µ
amps
fire alarm (LED on)
3.2mA
Sensitivity:
-
BS5445/EN54 Part 7
Mass:
-
114g (excluding base)
Charging Time:
-
20 seconds
Ambient Temperature
Range:
-
-10 Deg.C. to
+50 Deg.C..
Section 8 - ENVIRONMENTAL
PARAMETERS
Temperature Considerations:
Over the range from -10 deg. C. to +50 deg. C..
Humidity:
Relative Humidity of up to 90%, measured at
50 deg. C., non condensing.
Section 9 - EMC
Installation
The installation shall be in accordance with the
regulations either of the approval body for an approved
system, or otherwise, to the national code of practice/
regulations for the installation of the fire alarm system,
e.g. BS 5839 part 1.
Electromagnetic Compatibility (EMC)
On a site where there is an unusually high level of
potential electrical interference, e.g. where heavy
currents are being switched or where high levels of R.F.
are prevalent, care then must be taken in the type and
routing of cables. Particular care should be given to the
separation of zone wiring from the cable carrying the
interference.
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