Safety Advice
Operating Instructions MT-xx6-A
R. STAHL HMI Systems GmbH / OI_MT_xx6_A_en_V_03_00_26.docx / 03.11.2020
Page 25 of 60
10 Safety Advice
This chapter is a summary of the key safety measures. The
summary is supplementary to existing rules which staff also have to
study.
The safety of persons and equipment in hazardous areas depends
on compliance with all relevant safety regulations. Thus, the
installation and maintenance staff carry a particular responsibility,
requiring precise knowledge of the applicable regulations and
conditions.
The notes listed below in section 10.1 must be heeded to avoid injury
and damage to equipment !
10.1 Installation and operation
Please note the following when installing and operating the device:
The in each case valid national regulations for installation and assembly apply (e.g.
IEC/EN 60079-14).
The HMI device has been certified as a fixed installed device. It must be fixed with a
bracket or be secured in another way at a specified position.
The HMI device must be disconnected from the mains for a change of position. The EPL
must be adhered to.
The HMI device must only be switched on when it is closed.
The installation must be compliant with any applicable regulations.
After switching the HMI device off, wait for at least 1 minute before opening it.
The safe maximum values of the connected field device(s) must correspond to the values
listed on the data sheet or the EC type examination certificate.
The HMI devices may be installed in zones 2 or 22.
For use according to NEC, please refer to drawings 201717540 and 201133510. Any pre-
installations made ex-factory may have to be complemented accordingly.
When used in zone 2 and zone 22, intrinsically safe category 2 devices or energy-limited
category 3 associated equipment may be connected to the intrinsically safe circuits.
If category 2 equipment is connected to the intrinsically safe circuits in zone 1, Um must
adhere to IEC 60079-11 when connecting the power supply and the non-energy-limited
circuites of the MT-xx6-A-*.
For the maximum connectable L and C values of the intrinsically safe circuits, the
associated (above / underneath each other) pairs of values must be applied.
National safety and accident prevention rules.
Generally accepted technical rules.
Safety instructions contained in these operating instructions.
Any damage may compromise the explosion protection !
NOTICE
CAUTION
