Safety and commissioning information for Ex areas
14.2 Dry-running protection for centrifugal pumps by active power monitoring
SIMOCODE pro
System Manual, 05/2019, A5E40507475002A/RS-AD/004
315
Overall ignition protection concept
According to the overall ignition protection concept for the centrifugal pump, further
independent monitoring devices may be necessary, depending on the requirement level, to
avoid ignition sources in the event of expected and/or rare malfunctions. Failure of this "dry-
running protection for centrifugal pumps by active power monitoring" device for control of
ignition sources is regarded as a rare malfunction.
With SIMOCODE pro the dry-running protection for centrifugal pumps (non-electrical device)
works by active power monitoring and shutdown of the motor if a minimum flow rate is
undershot. This corresponds to the following type of ignition protection:
Control of ignition
sources b, ignition protection system b1, e.g. according to DIN EN 80079-37
SIMOCODE pro is registered for dry-running protection for centrifugal pumps by active
power monitoring according to both ATEX and IEC Ex.
Increased danger in hazardous areas means it is necessary to carefully observe the
following notes and standards:
● IEC 60079-14 / EN 60079-14 / DIN VDE 0165-1 Electrical apparatus for explosive gas
atmospheres - Electrical installations in hazardous areas (other than mines)
● IEC 60079-17 / EN 60079-17 / DIN VDE 0165-10-1 Electrical apparatus for explosive gas
atmospheres - Explosive atmospheres. Electrical installations inspection and
maintenance (other than mines)
● DIN EN 50495 Safety devices required for the safe functioning of equipment with respect
to explosion risks
● VDE 0118 Erection of electrical installations in mines
● DIN EN ISO 80079-36 Explosive atmospheres - Part 36: Non-electric equipment for use
in explosive atmospheres - Basic method and requirements
● DIN EN ISO 80079-37 Explosive atmospheres - Part 37: Non-electrical equipment for
explosive atmospheres - Non-electrical type of protection constructional safety ''c'', control
of ignition sources ''b'', liquid immersion ''k''
● DIN EN 1127-1 Explosive atmospheres - Explosion prevention and protection - Part 1:
Basic concepts and methodology
● DIN EN 13237 Potentially explosive atmospheres – Terms and definitions for equipment
and protective systems intended for use in potentially explosive atmospheres
● DIN EN 15198 Methodology for the risk assessment of non-electrical equipment and
components for intended use in potentially explosive atmospheres
● National implementation of Directive 1999/92/EC
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