2.4. Operational Safety
Operate the device in proper technical condition and fail-safe condition only. The operator is responsible for interference-free
operation of the device.
2.5. Product Safety
This measuring device is designed in accordance with good engineering practice to meet state-of-the-art safety
requirements. It has been tested and left the factory in a condition in which it is safe to operate. It meets general safety
standards and legal requirements. It also complies with the EU directives listed in the device-specific
EU Declaration of Conformity.
2.6. Electrical Safety
DISCONNECT DEVICE
SINCE THE DEVICE CANNOT BE SWITCHED OFF AT THE HOUSING, IT IS ABSOLUTELY NECESSARY TO CONNECT THE
SYSTEM TO AN EXTERNAL DISCONNECTING DEVICE.
DANGEROUS CONTACT VOLTAGES
• THE FUNCTIONAL EARTHING IS NOT IDENTICAL TO THE PROTECTIVE EARTHING ACCORDING TO DIN VDE 0100!
• EMC GROUND CONNECTORS ONLY FULFIL SECONDARY MEASURES FOR PROTECTION AGAINST DANGEROUS
CONTACT VOLTAGES.
• THE GREENYELLOW WIRES OF THE PROTECTIVE CONDUCTOR PE FULFIL THE MEASURES FOR PROTECTION
AGAINST DANGEROUS CONTACT VOLTAGES, BUT NOT THE REQUIREMENTS OF EMC DIRECTIVE 2014/30/EU.
• WHEN EARTHING A SYSTEM, TAKE APPROPRIATE PROTECTIVE AND FUNCTIONAL MEASURES IN ACCORDANCE WITH
DIN VDE 0100 AND EMC DIRECTIVE 2014/30/EU.
!
PROTECTIVE GROUNDING
SUITABLE MEASURES FOR ERROR PROTECTION MUST BE CARRIED OUT. THE CONDUCTIVE SYSTEM PARTS TO BE
PROTECTED MUST BE CONNECTED TO A SUITABLE EARTHING CONDUCTOR VIA THE PE CONDUCTOR, SO THAT THE
SYSTEM PARTS WITH A FAULT ARE SWITCHED OFF BY OVERCURRENT PROTECTION DEVICES.
Symbols Description
Protective conductor connection
This symbol refers to the protective conductor connection of the device.
Depending on the type of installation, the device may only be operated with a suitable protective conductor
connection in accordance with the applicable laws and regulations
L Phase conductor
N Neutral conductor
General Safety Instructions
Page 9 March 2021 HYB-UM-03155-EN-03
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