Maintenance and repair
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CPU & Power Module for Zone 2 / Div. 2
Series 9440/15
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11
Maintenance and repair
11.1 Maintenance
• Consult the relevant national regulations to determine the type and extent of
inspections.
• Adapt inspection intervals to the operating conditions.
During maintenance of the device, check at least:
• whether the clamping screws holding the electric lines are securely seated,
• whether the device enclosure and / or protective enclosure have cracks or other visible
signs of damage,
• whether the permissible ambient temperatures are observed,
• whether the device is used according to its designated use.
11.2 Maintenance
The device does not require regular maintenance.
11.3 Repair
11.4 Returning the device
Use the "Service form" to return the device when repair/service is required.
On the internet site "
r-
stahl.com" under "Downloads > Customer service":
• Download the service form and fill it out.
• Send the device along with the service form in the original packaging to R. STAHL
Schaltgeräte GmbH.
CAUTION
Risk of electric shock or malfunction of the device due to unauthorized work!
Non-observance can result in injuries!
• Switch off power, before performing work on the device.
• 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.
DANGER
Explosion hazard due to improper repair!
Non-compliance results in severe or fatal injuries.
• Repair work on the devices must be performed only by R.STAHL
Schaltgeräte GmbH.
