145290 / 8491602300
2020-04-21·BA00·III·en·04
Maintenance, Overhaul, Repair
13
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
EN
Signal Horn 105 dB(A)
Series 8491/2
9.1
Troubleshooting
If the error cannot be eliminated using the mentioned procedures:
• Contact R. STAHL Schaltgeräte GmbH.
For fast processing, have the following information ready:
• Type and serial number of the device
• Purchase information
• Error description
• Intended use (in particular input / output wiring)
10
Maintenance, Overhaul, Repair
10.1 Maintenance
• Consult the relevant national regulations to determine the type and extent of
inspections.
• Adapt inspection intervals to the operating conditions.
• Perform maintenance and repair work in accordance with IEC 60079-17 and
IEC 60079-19.
At a minimum, check the following points during maintenance on the device:
• Whether the clamping screws holding the electrical lines are fitted securely
• Whether the device enclosure and/or protective enclosure has/have cracks or other
visible signs of damage
• Whether the seals have aged or been damaged
• Compliance with the permissible temperatures (according to EN 60079)
• Whether the device is used as intended and functions properly
Error
Cause of error
Troubleshooting
Signal horn does
not work
Signal horn element is
broken
Return signal horn to R. STAHL
Signal horn connected
incorrectly
Have the signal horn connected
by qualified personnel
No power supply
Ensure that there is a power supply
Signal horn volume
too low
Insufficient power supply
Ensure sufficient power supply
CAUTION
Risk of electric shock or malfunction of the device due to unauthorized work!
Non-compliance can result in light injuries!
• Before carrying out work on the device, switch off voltage supply.
• Work performed on the device must only be carried out by authorized
and appropriately trained qualified electricians.
Observe the relevant national regulations in the country of use.
