WIKA NS160 Betriebsanleitung Seite 5

2. Safety
2. Safety
WARNING!
Before installation, commissioning and operation, ensure that the appropriate
instrument has been selected in terms of measuring range, design and
specific measuring conditions.
Check the compatibility with the medium of the materials subjected to
pressure!
In order to guarantee the measurement accuracy and long-term stability
specified, the corresponding load limits must be observed.
▶ Non-observance can result in serious injury and/or damage to property.
Further important safety instructions can be found in the individual chapters of
these operating instructions.
2.1 Intended use
These pressure gauges are used for measuring pressure in hazardous areas of industrial
applications.
The instrument has been designed and built solely for the intended use described here, and
may only be used accordingly.
The manufacturer shall not be liable for claims of any type based on operation contrary to
the intended use.
2.2 Responsibility of the operator
The legibility of the marking must be observed during time in use but at least during
inspection periods of three years. If any harm of the legibility is found please contact the
manufacturer to renew the marking.
For the safety of the system, the operator is obliged to carry out an ignition source analy-
sis. The responsibility for classification of zones lies with the plant manager and not the
manufacturer/supplier of the equipment.
These ignition sources must be taken into account for the instrument:
1. Hot surfaces
The surface of the instrument can heat up due to the temperature of the process
medium. This depends on the installation situation and must be taken into account by
the operator.
2. Mechanically generated sparks
Mechanically generated sparks are a potential ignition source. If the materials used
exceed a total mass percentage of 7.5 % magnesium, titanium and zirconium, the opera-
tor must take appropriate protective measures.
WIKA operating instructions pressure gauge, model 4 per ATEX
EN
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