35
WIKA operating instructions pressure transmitter, model IS-3
EN
14243628.02 10/2018 EN/DE
6. Commissioning, operation
Notes on installation in and mounting to zone 0 and zone 20
WARNING!
Danger to life through improper mounting
If the pressure transmitter is not mounted properly, there is the risk of a carry-through between zones.
■
For areas that require
EPL Ga
, the pressure transmitter or the cable bushing must be mounted into
the barrier between areas in such a way that IP67 ingress protection in accordance with IEC 60529 is
ensured.
■
For areas that require
EPL Da
, the pressure transmitter or the cable bushing must be mounted into
the barrier between areas in such a way that IP6X ingress protection in accordance with IEC 60529 is
ensured.
■
When using the pressure transmitter in areas that require
EPL Ga or Da
, the shield of the connection
lead and the metallic part of the strain relief clamp must be included within the equipotential bonding
of the enclosure.
6.1.1 Special conditions for safe use in hazardous areas (for ATEX/IECEx ignition protection type Ex i)
■
The installation of the pressure transmitter into the barrier between areas that require category 1G equipment must
be made in such a way that ingress protection IP67 in accordance with EN 60529 is ensured.
■
The installation of the pressure transmitter into the barrier between areas that require category 1D equipment must
be made in such a way that ingress protection IP6X in accordance with EN 60529 is ensured.
■
Observe the manufacturer's technical information for the use of the pressure transmitter in combination with
aggressive / corrosive media and for avoiding mechanical hazards.
■
When using the pressure transmitter in areas that require category 1 equipment, the shield of the connection lead
and the metallic part of the strain relief clamp must be included within the equipotential bonding of the enclosure.
■
The cable bushing of the instruments in the barrier between areas that require category 1G equipment must be
made in such a way that ingress protection IP67 in accordance with EN 60529 is ensured.
■
The cable bushing of the instruments in the barrier between areas that require category 1D equipment must be
made in such a way that ingress protection IP6X in accordance with EN 60529 is ensured.
■
The measurement of process media with temperatures that are higher than those specified in the table “Ambient
and medium temperatures of the respective electrical connections for safe operation, for medium temperatures
≤ 105 °C [221 °F] (for ATEX/IECEx ignition protection type Ex i, CSA and FM) is permissible with special cooling
elements. However, the permissible surface temperatures that apply for this area based on the specified tempe
-
rature classes must not be exceeded.