BUSCH R5 ATEX, Инструкция по эксплуатации

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2 | Product Description
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2.4.8 Pressure Transmitter
The pressure transmitter monitors the pressure in the oil separator.
Warning and trip signals must be set, see Wiring Diagram Pressure Transmitter [ ► 20] .
2.5 Explanation of ATEX Classification
The ATEX classification is written on the nameplate of the machine (NP), see below a
marking example:
Inside (i)
Outside (o)
II 2G / 3D Ex h IIB T3 Gb / IIIC 80°C Dc X
II 2GD Ex h IIB T4 Gb / IIIC 130°C Db X
Explosion group inside the machine
Equipment category for explosive gases inside the machine
Equipment category for gas and dust outside the machine
Equipment group II (not for mining application)
Explosion protection inside the machine
Explosion protection outside the machine
Design approved
according to ATEX Directive
Equipment group II (not for mining application)
Temperature class inside the machine (T3=200°C)
Temperature class outside the machine (T4=135°C)
Max. temperature for surfaces in contact with dust
Equipment category for explosive dust
Type of protection
Type of protection
Explosion group outside the machine
Equipment protection level gas
Dust explosion group inside the machine
Equipment protection level dust
Max. temperature for surfaces in contact with dust
Equipment protection level dust
Dust explosion group outside the machine
Special conditions for operation*
Special conditions for operation*
Equipment protection level gas
* The specific operating conditions are determined by the type of oil used in the ma-
chine which will limit the max. allowable ambient temperature, see
Technical Data
[ ► 34] .
2.6 Safety concept
The safety concept is based on the prevention of sparks and excessive temperatures by
means of various accessories.
The monitoring devices must be integrated into the system control such that operation
of the machine will be inhibited if the safety limit values are exceeded.
The limit values of each accessory are defined in the wiring diagram chapters, see Elec-
trical Connection of the Monitoring Devices [ ► 19] .
To have more details about the monitoring procedure, see
Flowchart [ ► 22]
.
2.6.1 ATEX Classifications and Associated Accessories
WARNING
Any confusion between the two possible ATEX temperature classes.
Risk of severe injury!
Risk of explosion!
• Be aware that the machines RA/RC 0400 C and RA/RC 0502 C are certified T3(i/o)
and the machine RA/RC 0630 C is certified T3(i) / T4(o).
The following table defines the obligatory accessories depending on the ATEX classifica-
tion.