SS 20.600 Ex
– Supplementary instructions for use in explosive atmospheres ATEX Page 5
3 Safety instructions for explosive
atmospheres
The following standards and rules are relevant:
o EN 1127-1:
Explosion prevention and protection
– Part 1:
Basic concepts and methodology
o TRBS series
o Standards for explosive gas atmospheres ("G"):
-
EN 60079-10-1: Classification of explosive atmospheres
-
EN 60079-14:
Electrical apparatus for explosive atmospheres
-
EN 60079-17:
Inspection and maintenance
The ATEX version of the
SCHMIDT
®
Flow Sensor SS 20.600
Ex
is suitable for the following applications:
o in
explosive gas
atmospheres:
Zone 2
The compliance with the important explosion protection data
of your application must be ensured by appropriate labeling.
o G = Gas
o Device categories 1, 2, 3 in 3 zones
o Gas values: Temperature class (T1
… T6)
Prior to carrying out operations such as assembly or electrical
connection, make sure that:
o the
operation approval
of the owner is available
o there is no
explosive atmosphere
o the device is
disconnected from the mains
o the device cannot be
switched on inadvertently
Avoid dust deposits (installation position, protection, cleaning
measures
…) in order to prevent dangerous increase of the
surface temperature.
Installation, commissioning and periodic checks must be car-
ried
out by qualified personnel only ("qualified person“ accord-
ing to TRBS, Technical Rules for Operational Safety, 1203).
Repair work must be carried out by the manufacturer only.
Changes to the device are not allowed and can cause the risk
of explosion (ignition).
Only original accessories by the manufacturer must be used.
