Mectron combi touch Manual De Uso Y Mantenimiento página 248

combi touch
a) The test can be performed at any supply voltage
within the combi touch range of NOMINAL voltages.
If combi touch is tested at one supply voltage value, it
need not be retested at other voltage values.
b) During the test, all combi touch cables must be
connected.
c) The calibration of the current injection terminals must
be performed in a system at 150 Ω.
d) If an ISM or amateur radio band is not present among
the frequency samples, as appropriate, an additional
test frequency has to be used in the ISM band or in
the amateur radio band. This applies to each ISM and
amateur radio band within the specified frequency
range.
e) The test can be performed with other modulation
frequencies identified by the RISK MANAGEMENT
PROCESS.
f) Devices and systems with a Direct Current (DC)
input power supply using AC to DC converters must
be tested with a converter that complies with the
MANUFACTURER'S specifications. Immunity test levels
are applied to the AC power input of the converter.
g) Only applicable to devices and systems connected to
a single-phase Alternating Current (AC) power supply.
h) For example, 10/12 means 10 periods at 50 Hz or 12
periods at 60 Hz.
i) Devices and systems with nominal input current above
16 A / phase must be disconnected from the power
supply once every 250/300 cycles at any angle and
from all phases simultaneously (if applicable). Devices
and systems with battery backup, after the test, must
resume operation using the power supply line. For
devices and systems with a nominal input current
lower than 16 A, all phases must be disconnected
simultaneously.
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j) Devices and systems that do not have a surge
protection device in the primary power circuit can
only be tested at ± 2 kV between the line(s) and the
ground (common mode) and at ± 1 kV between line(s)
and line(s) (differential mode).
k) Not applicable to CLASS II devices and systems.
l) It is necessary to use direct coupling.
m) R.M.S. , applied before modulation.
n) The ISM bands (industrial, scientific and medical)
between 0.15 MHz and 80 MHz are 6.765 MHz to
6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz
to 27.283 MHz; and 40.66 MHz to 40.70 MHz. The
amateur radio bands between 0.15 MHz and 80 MHz
are 1.8 MHz to 2.0 MHz, 3.5 MHz to 4.0 MHz, 5.3 MHz
to 5.4 MHz, 7 MHz to 7.3 MHz, 10.1 MHz to 10.15
MHz, 14 MHz to 14.2 MHz, 18.07 MHz to 18.17 MHz,
21.0 MHz to 21.4 MHz, 24.89 MHz to 24.99 MHz, 28.0
MHz to 29.7 MHz and 50.0 MHz to 54.0 MHz.
o) Applicable to devices and systems with NOMINAL
input current less than or equal to 16 A / phase and
devices and systems with NOMINAL input current
greater than 16 A / phase.
p) Applicable to devices and systems with NOMINAL
input current less than or equal to 16 A/ phase.
q) At some phase angles, the application of this test to
devices with a transformer on the input power supply
may cause the opening of an overcurrent protection
device. This can occur due to the saturation of the
magnetic flow of the transformer core after the
voltage drop. If this happens, the device must ensure
BASIC SAFETY during and after the test.
r) For devices and systems that have multiple voltage
settings or self-regulating voltage capabilities, the
test must be performed at the minimum and at the
maximum NOMINAL input voltage. Devices and
systems with a NOMINAL input voltage range lower
than 25% of the highest NOMINAL input voltage have
to be tested with a NOMINAL input voltage within
the range.