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PARAMETERISATION SOFTWARE PASO EXPLOSION PROTECTION
With the PASO software, all configuration and parameterisation can be carried out via Flammable gases, vapours and dust can form an explosive atmosphere when mixed with
the intuitive user interface with a laptop. In addition, as all important signals can be re- oxygen. In order to ensure a high level of safety, appropriate protective regulations exist
corded or analysed on the screen in real time, the software also provides the possibility for the various operating equipment to avoid the risk of explosion hazards. The solenoid
of troubleshooting. as an electrical actuation in the valve technology must therefore demonstrate a type of
protection that is in line with the explosion protection standard.
Valves that are exposed to continuous contact with salty water and atmospheres that
FUNCTIONALITIES contain salt or to harsh weather conditions demand enhanced corrosion protection in
Despite the multitude of application possibilities, PASO is very order to prolong their service life.
user-friendly and easy to operate. The functional process is
displayed on the screen as a block diagram. By clicking on
one of the block diagram symbols, a menu window opens in
which the parameters associated with the process can be set.
In addition to the connecting lines between the blocks, the DESCRIPTION
feedback value being passed onto the following block is also • Electrical operating equipment for all explosion hazard
displayed in real time. In this way, it is possible to monitor the zones
effects of a parameter change on the entire system on the • Solutions for valves and systems
computer, allowing fine tuning to be performed quickly and
precisely. The set values can then be saved in a parameter file • Optionally enhanced corrosion protection up to stainless
and can also be loaded directly into a new electronic module. steel executions
CHARACTERISTICS
PARAMETERISATION AND PROGRAMMING ADDITIONAL EXECUTIONS • Type of protection fl ameproof enclosure (Ex d) for zone 1 and 2
• PC software PASO (freely available) • Customer-specific software expansions • Type of protection intrinsic safety (Ex i) for zone 0
• Individual process data monitoring • Hardware expansion for additional functions • Certified solenoids for surface and mining areas
• Integrated oscilloscope • Software for application-optimised solutions • Certificates for ATEX, IECEx, EAC, Inmetro, NEPSI,
• Remote control functions • Flexible interface definition UL/CSA, Australia, MA
• Fieldbus Interface • Electronics integrated in the valve
FUNCTIONS
• Solenoid operated spool valves
• Solenoid operated poppet valves
• Proportional spool valves
• Proportional pressure valves (relief and reducing)
• Proportional flow valves (throttle and flow control)
• Electronics integrated into the valve for proportional func-
tions
TYPES OF PROTECTION FOR ELECTRICAL EQUIPMENT IN GAS EXPLOSION HAZARD AREAS
TYPES OF PROTECTION FOR ELECTRICAL EQUIPMENT IN GAS EXPLOSION HAZARD AREAS
TYPE OF PROTECTION SYMBOL ZONE DIAGRAM STANDARD
IEC 60079-7
increased safety e 1
EN 60079-7 (ATEX)
IEC 60079-1
flameproof enclosure d 1
EN 60079-1 (ATEX)
IEC 60079-11
intrinsic safety ia 0 EN 60079-11 (ATEX)
IEC 60079-18
encapsulation m 1 EN 60079-18 (ATEX)
TYPES OF PROTECTION FOR ELECTRICAL EQUIPMENT IN AREAS WITH COMBUSTIBLE DUST
TYPE OF PROTECTION SYMBOL ZONE DIAGRAM STANDARD
WANDFLUH MOBILE | PROPERTIES | EXPLOSION PROTECTION | PAGE 13
IEC 60079-31
protection by enclosures tb 21
EN 60079-31 (ATEX)
old identification: tD A21 = under procedure A for zone 21 (EN 61241-1)
GROUPS
ATEX / IEC / NEC 505 NEC 500
Group I mines susceptible to firedamp —
Methan
Group II gas explosion hazard areas Class I
subdivisions typical gas subdivisions
IIA Propane Propane Class I Group D
IIB Ethylene Ethylene Class I Group C
IIC Hydrogen Hydrogen Class I Group B
Acetylene Acetylene Class I Group A
Groupe III dust explosion hazard areas Class II/III
subdivisions type of dust subdivisions
IIIA combustible flyings fibres and fluff Class III
IIIB non-conductive dust non-conductive dust Class II Group G
IIIC conductive dust carbonaceous dust Class II Group F
combustible metal dust Class II Group E
Subdivision IIC (IIIC) includes subdivisions IIA and IIB (IIIA and IIIB)
TEMPERATURE CLASSIFICATION
Maximum Temperature classes for gases Maximum surface temperature Temperature classes for gases
surface temperature
ATEX / IEC / NEC 500 / 505 ATEX / IEC / NEC 500 / 505
450 °C T1 200 °C T3
300 °C T2 135 °C T4
100 °C T5
for dusts: indication of the maximum surface temperature in °C
85 °C T6
TYPE OF PROTECTION
IP Type of protection according to IEC/EN 60529