VKK2-8 / VKK2R-8
SAFETY INSTRUCTIONS
4
Conversions and modifications
The junction box must not be modified from the design or safety engineering point of
view except with our express agreement. Any modification shall exclude all liability on our
part for any damage resulting therefrom.
Carrying out repairs and soldering work on the motherboards or replacing components is
forbidden. The sole exception here are the screwed cable glands of the non explosion-
proof junction boxes. Repairs must only be undertaken by persons who are authorized by
HBM to do so.
If you replace screwed cable glands, they must be tightened to a torque in accordance
with Tab. 5.1, page 8.
Maintenance
The junction box gives degree of protection IP65 (dust-tight, protected against water
jets). Make regular checks to ensure the tightness and efficiency of the rubber lid seal
and the screw fittings. The frequency of checks depends on the application conditions,
e.g. the level of contamination or the materials with which the junction box comes into
contact.
Disposal
Old junction boxes that can no longer be used must be disposed of in accordance with
national and local environmental protection and material recovery and recycling regula
tions.
If you need more information about waste disposal, please contact your local authorities
or the dealer from whom you purchased the product.
Qualified personnel
Qualified personnel means persons entrusted with siting, mounting, starting up and oper
ating the product, who possess the appropriate qualifications for their function.
This includes people who meet at least one of the three following requirements:
1. Knowledge of the safety concepts of automation technology is a requirement and as
project personnel, you must be familiar with these concepts.
2. As automation plant operating personnel, you have been instructed how to handle the
machinery. You are familiar with the operation of the equipment and technologies
described in this documentation.
3. As commissioning engineers or service engineers, you have successfully completed
the training to qualify you to repair the automation systems. You are also authorized
to activate, ground and label circuits and equipment in accordance with safety engin
eering standards.
It is also essential to comply with the legal and safety requirements for the application
concerned during use. The same applies to the use of accessories.
The junction box may only be installed by qualified personnel, strictly in accordance with
the specifications and with the safety requirements and regulations.
