35WIKA operating instructions pressure transmitter, model IS-3
MM/YYYY country code based on 14095850.02 12/2014 EN/CN
EN
6.1.2 Special conditions for safe use in explosive atmosphere (for ignition protection Ex nA and Ex tc)
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The connector provided by the end user in the end use application shall be in accordance with all applicable clauses
of IEC 60079-0 and IEC 60079-15. A minimum degree of protection IP54 according to IEC 60529 shall be ensured.
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The external earthing has to be established by the end user in the end use application.
6.2 Mechanical mounting
Tools required:
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Torque spanner 27 mm or 41 mm ats
1. With the help of the product label, check that the pressure transmitter is suitable for the intended application.
WARNING!
Before installation, commissioning and operation, ensure that the appropriate instrument has been
selected in terms of measuring range, design and specic measuring conditions.
Non-observance can result in serious injury and/or damage to the equipment.
2. The sealing faces and threads on the pressure transmitter and at the mounting point must be clean and without
damage. Clean the sealing faces if contaminated.
WARNING!
Danger of injury and damage to property due to escaping media
Escaping media can lead to serious injury. In the event of failure, components can be ejected or
media exhausted under high pressure.
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Employ a protective device that prevents parts from being ejected. The protective device must not
be removable without the use of tools.
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Ensure that the pressure in the system as a whole does not exceed the lowest maximum pressure
of any of its components. If varying or dierent pressures are to be expected in the system,
components must be used that can withstand the maximum expected pressure spikes.
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Ensure that the mounting point has been made absolutely free from burrs and is clean.
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With pressures > 1,000 bar, use a suitable pressure ring.
6. Commissioning, operation
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