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Praesideo 3.5 | Installation and User Instructions | ISO7240-16: 2007
Clause / Requirement
17 Tests
17.1 General
17.1.5 Mounting arrangements
The specimen shall be mounted by its normal means of
attachment in accordance with the manufacturer's
instructions. If these instructions describe more than one
method of mounting, then the method considered to be
the least favourable shall be chosen for each test.
17.2 Functional test
17.2.2.4 Test schedule - Disabled condition
Where a disablement function is provided, disable and
restore at least two emergency loudspeaker zones (unless
only one zone is provided).
Check that the operation of the disablement controls result
in the correct indication on the s.s.c.i.e., that only the
relevant parts of the system are disabled and that, on
restoration of the disablements, the function is restored.
17.3 Test schedule
17.3.4 Test for three specimens
If three specimens are supplied for environmental testing,
then one test specimen is subjected to all the operational
tests, which may be carried out in any order. The second
specimen shall be subjected to one of the endurance
tests, and the third specimen shall be subjected to the
other endurance test. Before and after each environmental
test, a functional test shall be carried out.
For the first specimen, the functional test after one
environmental test may be taken as the functional test
before the next environmental test.
17.4 Output power
17.4.2.2 State of the specimen during conditioning
Mount the specimen as specified in 17. 1 .5 and connect it to
suitable power-supply, monitoring and loading equipment,
as specified in 17. 1 .3.
The specimen shall be in the quiescent condition.
17.4.2.3 Conditioning
Apply the following severity of conditioning:
•
temperature: 40 °C ± 2 °C.
Precondition the specimen at the conditioning temperature
(40 °C ± 2 °C) until temperature stability has been reached
to prevent the formation of water droplets on the specimen.
Terminate the s.s.c.i.e. output(s) with the minimum resistive
and maximum capacitive load representing the loudspeaker
lines and loudspeakers.
Adjust the power-supply equipment output to the nominal
primary power source level.
Apply the 1 kHz sinusoidal signal to the input of the
specimen and adjust the gain of the system until the rated
r.m.s. output power is achieved.
Maintain this gain for 1 min.
17.4.2.5 Final measurements
After 1 h recovery time at standard atmospheric
conditions, measure the frequency response of the
specimen in accordance with 17.6 or 17.7, as applicable.
Bosch Security Systems | 2011-02
Compliance
All tests as asked for in the clauses of section 17 have been
carried out by an accredited certification body for
ISO7240-16 compliancy.
The Praesideo system has been found compliant to
ISO7240-16 and received a certification of compliancy.
Praesideo does not support the optional function disabled
condition. See 9.
en | 70
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