Stahl ispac 9143, Operating Instructions Manual

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Operating Instructions english
12
Vibration Transducer Supply Unit Type 9147
•
Zone 1 and 21 intrinsically safe devices may be connected to the intrinsically safe
signal circuits.
•
The I.S. power supply may only be connected to devices which will not be subjected
to voltages higher than AC 253 V (50 Hz).
•
The safe maximum values of the connected field device(s) must correspond to the
values of the data sheet or the EC-type examination certificate.
•
Interconnecting several active devices in an intrinsic safety circuit may result in other
safe maximum values. This could endanger the intrinsic safety!
•
National safety and accident prevention regulations
•
The generally recognised technical regulations
•
The safety guidelines in these operating instructions
•
Any damage can compromise and even neutralise the explosion protection.
Use the device in accordance with the regulations and for its intended purpose only (see
“Function”).
!
Warning
With incorrect or unauthorized use or non-compliance with these instructions the
intended protection can be impaired, the warranty provision is invalidate on our part in
these cases.
o
No changes to the devices or components impairing their explosion protection are
permitted.
o
Furthermore, the device may only be operated if it is undamaged, dry and clean.
Should there be any question about the correct handling of the module, please contact R.
STAHL Schaltgeräte GmbH, Am Bahnhof 30, 74638 Waldenburg, Germany, telephone
+49-7942-943-0, or contact one of our offices or representatives see
www.stahl-ex.com .
4 Conformity to standards
The information about the conformity to standards can be found in the manufacturer’s
declaration of conformity in the appendix of this document.
The current EC-Type Examination Certificate can be downloaded from the Internet
www.stahl-ex.com .