Safety Instructions - HBM VKK2R-8 Ex Bedienungsanleitung

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Safety instructions

Use in accordance with the regulations
This junction box is passive equipment for use in potentially explosive
atmospheres for connection of up to 8 strain gage load cells with a bridge
resistance w 348 W and the appropriate amplifier/evaluation device.
In the interests of safety, the junction box should only be operated as
described in the Installation Instructions. It is also essential to observe the
appropriate legal and safety regulations for the application concerned during
use. The same applies to the use of accessories.
It is essential to comply with the respective national laws and safety
regulations for the use of transducers in potentially explosive atmospheres.
The junction box is not a safety element within the meaning of its use as
intended. For safe and trouble-free operation, this junction box must not only
be correctly transported, stored, sited and installed but must also be carefully
operated and maintained.
Notes on production and operation
1. The junction box must be integrated into the potential equalization on site.
2. Either intrinsically safe or non-intrinsically safe electrical circuits may be
connected only, combination is not permissible.
3. If the junction box is operated with non-intrinsically safe electrical circuits,
subsequent use in type of protection "intrinsic safety" is not permissible.
See EC-type examination certificate
Maintenance and repairs
The provisions of EN60079−17 must be complied with for maintenance and
repairs or inspections. Those components on which the ignition protection
class depends must be primarily checked within the framework of
maintenance.
The housings may only be opened without additional measures for
maintenance in the "intrinsic safety" type of protection. If connected
intrinsically safe circuits are affected by maintenance work, it must be ensured
that no dangerous remote effects can occur. The housing must not be opened
while voltage is applied if non−intrinsically safe circuits are present.
The condition of the seals must be checked. When replacing cable glands and
sealing plugs, ensure sealing is correct.
HBM
PTB 05 ATEX 2014.
VKK2R-8 Ex
A1552-4.1 en/de