Burkert 8400 Manuel D'instructions page 5

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The device should only be installed and repaired by specialist staff.
The user is not allowed to work on the cables inside the housing.
If any difficulties may occur with the product during installation,
please contact your nearest Bürkert sales office for assistance.
1.2 Precautions at installation and commissioning
- When the device is powered and the cover is open, protection
against electric shocks is not ensured.
- To clean the device, only use chemically compatible products.
- Protect the controller from electromagnetic perturbations and,
when installed outside, protect it from the rain and ultraviolet
radiations.
1.3 Conformity to standards
EMC: EN 50 081-1 (1992), 50 082-2 (06-1995)
Security: EN 61 010-1 (1993, A2-1995)
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