Ex Marking; Special Conditions For Safe Use (X Conditions); Atex Information - WIKA NETRIS 3 Betriebsanleitung

3. Safety

3.7 Ex marking

DANGER!
Danger to life due to loss of explosion protection
EN
Non-observance of these instructions and their contents may result in the loss
of explosion protection.
▶
▶
▶
▶
▶

3.8 Special conditions for safe use (X conditions)

Under certain extreme circumstances, the non-metallic enclosure may generate an
ignition-capable level of electrostatic charge. Therefore the equipment shall not be installed
in a location where the external conditions are conductive to the build-up of electrostatic
charge on such surfaces. In addition, the equipment shall only be cleaned with a damp
cloth.

3.9 ATEX information

The WIKA model NETRIS
the WIKA radio unit may be installed and used in zones 0, 1 and 2.
Since the WIKA model NETRIS
WIKA measuring instrument (e.g. with model PGU2x.100), the instrument with the lower
Ex zone specifies the entire Ex zone. Thus, in the lower case, Ex zone 1. The WIKA
PGU2x.100 measuring instrument is certified for use in zone 1. The NETRIS
is certified for use in zone 0. The assembly of these two instruments may, thus, only be
operated in Ex zone 1 areas.
12
Observe the safety instructions in this chapter and further explosion
protection instructions in these operating instructions, see 9
„Specifications".
Observe the information given in the applicable type examination certificate
and the relevant country-specific regulations for installation and use in
hazardous areas (e.g. IEC 60079-14). Check whether the classification is
suitable for the application. Observe the relevant national regulations.
The case is factory-sealed. The case must not be opened. Before
installation, it must be checked whether the instrument is in a defect-free,
undamaged condition.
No conversions or changes may be made to the instrument.
The device contains active energy storage also in the non-operational
status. Therefore, defective devices have to be taken out of the Ex area
within one year and disposed appropriately.
®
3 radio unit is always operated in combination with a
®
3 radio unit carries a marking for zone 0. Therefore,
WIKA operating instructions, model WIKA NETRIS
®
3 radio unit
®
3