Kobold PSE series, Руководство по эксплуатации

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PSR/PSE
PSR/PSE K23/0322 page 5
5. Operating Principle
The KOBOLD flow monitors of series PSE and PSR are used
where economical, reliable flow monitors are indicated.
Depending on the flow velocity respectively flow rate, the baffle
plate is deflected and moves the permanent magnet via the
balance arm into the switching range of the reed contact
mounted outside of the flow media.
The flat spring, which also serves as a support for the balance
arm, forces the baffle plate back to its rest position when there
is no flow. KOBOLD baffle plate flow monitors are supplied
completely assembled with fitting up to nominal size 40, or for
larger nominal pipe sizes - supplied without a pipe length for
direct insertion into standard T pieces or fittings. The sealing
takes place via PTFE tape.
6. Use in Hazardous Areas (PSx-2)
6.1. Preamble
This excerpt from the operating instructions only represents the ex-relevant
aspects. It is adopted in the same or analogous form in the original operating
instructions; Textual changes are permitted; the ex-relevant statements remain.
To ensure functionality and for your own safety, please read the enclosed
operating instructions carefully before starting the installation. If you have any
questions, please contact KOBOLD Messring GmbH, Hofheim. It applies with the
original operating instructions.
When evaluating the product, the following standard issues were taken into
account:
a) IEC 60079-0:2017 Ed. 7.0 / EN IEC 60079-0:2018 Explosive atmospheres –
Part 0: General Requirements
b) IEC 60079-11:2011 Ed. 6 + Cor.:2012 / EN 60079-11:2012 Explosive
atmospheres – Part 11: Equipment protection by intrinsic safety “i”
c) EN 50303:2000 Group 1, category M1 equipment intended to remain
functional in atmospheres endangered by firedamp and/or coal dust
6.2. General information on explosion protection
The KOBOLD flow monitors types PSR and PSE are used wherever reliable flow
monitoring is required.
Depending on the flow velocity or flow rate, the baffle plate is deflected and
moves the permanent magnet via the balance beam into the response area of the
reed contact located outside the flow medium.