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03
6
Safety
1.5
Improper Use
The device not intended to be used for series connections of more than 2 Ether-
net Isolators.
1.6
Installation and Commissioning
1.6.1
Requirements for installation within Zone 2
The device must be mounted for installation in the hazardous area in category 3G
/ Zone 2 in a housing which corresponds at least to protection class IP 54 per EN
60529 and which is suitable for this type of installation.
The connection and disconnection of non-power-limited circuits carrying current
is permitted only during installation or maintenance, or for purposes of repair.
Devices being operated in connection with hazardous areas may not be changed
or manipulated. If there is a defect, the product must always be replaced with an
original part.
If the device has already been operated in general electrical installations, the
device may subsequently no longer be installed in electrical installations used in
combination with hazardous areas.
To provide a sufficient heat dissipation, mount the devices with a separation dis-
tance.
Keep half the distance of the device width to adjacent devices on each side of the
device.
1.6.2
Installation in Connection with Intrinsically Safe Power Cir-
cuits
The EU-type examination certificate should be observed as first concern. It is
especially important to observe the "special conditions for safe use" as far as con-
tained in the certificate.
The intrinsically safe circuits of the devices (blue marking on the devices) may be
routed into explosion-hazardous areas. Special care must be taken to ensure the
safe separation from all non-intrinsically safe circuits.
The installation of the intrinsically safe circuits has to be conducted in accordance
with the relevant installation regulations particularly EN 60079-14 / IEC 60079-14.
Connect only devices that are approved by EU-type examination certificate of the
Ethernet Isolator for this kind of use, to the intrinsically safe port of the Ethernet
Isolator.
If the device has already been operated in general electrical installations, the
device may subsequently no longer be installed in electrical installations used in
combination with hazardous areas.
1.6.3
Intrinsically Safe Wiring and Cable Parameter
Only Ethernet cables meeting the requirements of the EU-type examination certif-
icate must be connected to the intrinsically safe port of the Ethernet Isolator.
Special care must be taken of the inductance / resistance-ratio (H/
) of the Ether-
net cable used. The resulting value is an indicator for the stored energy within the
cable (see chapter 2.4).
The length of the intrinsically safe cable between the 2 Ethernet Isolators may not
ecxeed 100 m.
Содержание EI-0D2-10Y-10B-LT
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