Safety Warning; Maintenance Advice; Troubleshooting; Disposal - Pfannenberg DS5-SIL Betriebsanleitung/Sicherheitshandbuch

4.16. Safety Warning

DANGER - Danger to life due to electric shock
Voltage-carrying devices and exposed connection cables may cause electric shocks and serious acci-
dents.
- Only trained and authorized electricians may work on electrical connections.
- Disconnect all supply lines from mains before installation and secure them against reconnection. Al-
ways ensure absence of voltage.
- The operating voltage must only be applied when the housing is firmly closed.
- Restore internal PE connections that were disconnected during installation after completing the work.
CAUTION - Risk of hearing impairment
- Wear sound insulation equipment during work/testing to prevent hearing impairment.

4.17. Maintenance advice

The sounder does not require any special maintenance. However, the 'proof test' interval should be observed.
Changes, modifications, faulty and incorrect use as well as not observing the advice of this operating manual
void the warranty.
External cleaning should be done with weak soapy water without use of solvents.

4.18. Troubleshooting

Despite high functional safety, faults can occur during use. These can have consequences in the sounder, in the
operational voltage supply or in the evaluation in the control system.
It is the responsibility of the plant operator to take suitable measures to deal with occurred faults.
The first measure can be to check the operational voltage, check whether an acoustic warning signal is gener-
ated and check the position of the alarm relay contacts, depending on the operational condition of the sounder.
The cause of the fault can thereby be traced. A step-by-step function test as described in section
ried out during the 'proof test' in section
If the sounder is defective, it should be repaired in the production plant. Only original replacement parts can be
used as replacements.
Faults that affect the functional safety are to be reported to the manufacturer. For a smooth process, please use
the form attached and send it to the following address.
You can reach the service or technical support on +49 (0)40 73412 -0.

4.19. Disposal

www.pfannenberg.com/disposal

5. List of Abbreviations

DC Diagnostic Coverage
DIP Dual Inline Package
PFD Probability Failure per Demand
PFH Probability Failure per Hour
PL Performance Level
SFF Safety Failure Fraction
SIL Safety Integrated Level
File name:085501958j_de-en-fr-it.docx
4.10 can also help a lot.
Post: Pfannenberg GmbH
Service
Werner-Witt-Str.1
D-21035 Hamburg
E-Mail: Service@Pfannenberg.com
Fax: 49 (0)40 73412-102
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4.7 and car-
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