Purpose; Description - Pepperl+Fuchs 6000 SERIES Installation And Operation Manual

6000 Series Purge/Pressurization System
Note:
• Peripheral devices such as optional SRM module and
I.S. solenoid were not evaluated by UL as part of the
intrinsically safe certification.
• When using third-party certification, ensure that you
match the entity parameters for intrinsically safe
devices as shown in control drawing 116-B027 .
• SRM module is a simple apparatus and does not
require third-party certification.
EPV-6000 Vent
1. The EPV vent has an operating temperature class of
135 °C (T4 temperature class). This temperature shall
be considered when mounted to an enclosure.
2. When the purge control unit is mounted to an enclosure,
the complete unit shall be evaluated to IEC/EN 60079-
2: 2014 (Ed. 6)
3. Cables used to connect to an EPV- vent must be
provided with at least 0.25 mm insulation thickness
per conductive core to maintain segregation between
intrinsically safe circuits.
4. In hazardous dust environments, regularly remove dust
from the EPV vent to prevent excessive temperature
rise. See certificate for full information.
5. In hazardous dust environments, the connector end of
the vent shall be protected from direct exposure of a UV
light source. See certificate for full information.
6. Only EPV-6000-xx-xx vents can be connected to any
certified model 6000 control system.

Purpose

The purpose of the Pepperl+Fuchs 6000 series Type X
& Ex px, Zone 1 enclosure protection system is to allow
the use of general purpose or non-rated electrical or
electronic devices located in general purpose enclosures
instead of explosion-proof/flameproof, Type 7 or 9 / Ex
d enclosures or other means of protection for the rated
area. Other purposes include heat, moisture, and dust
contamination prevention.

Description

The 6000 series Type X & Ex px purge and
pressurization system protects general purpose
equipment mounted in a standard enclosure. This allows
the enclosure to be located and the equipment operated
in a hazardous area. The hazardous area classification
can be Class I, Class II, Division 1 / Zone 1, Zone 21.
The 6000 series operates by controlling and monitoring
compressed instrument air or inert gas through the
protected enclosure(s) so as to remove and prevent the
accumulation of flammable gas, vapors, or dust.
The 6000 series system features these main parts:
• Electronic processor (EPCU) housed in an
explosion-proof enclosure
• I.S. electrical/pneumatic manifold assembly
• I.S. user interface for programming and monitoring
the system
• 316L stainless steel (UNS S31603) type 4X IP66
enclosure for EPCU and connections
• Pressure relief vent with flow and pressure
monitoring at the exhaust.
The user interface allows programming of up to 4 switch
inputs, temperature modules, enclosure power contacts,
2 auxiliary outputs, and various operational functions.
Through the user interface menus, configuration of the
standard information for setup and operation of a system
(purge time, flow rates, pressures, enclosure size, etc.)
are easily programmed. Additional features allow inputs
for system bypass, enclosure power on/off, temperature
overload and activation of rapid exchange flow for cooling
or auxiliary relay for separate cooling source, delay
power shutdown, and more. The two auxiliary contact
outputs can be configured to activate on most of the
input switches or any of the configured alarm states for
pressure, flows, and temperature.
The power for the solenoid valve on the manifold unit,
inputs, the user interface controller (UIC), and EPV-6000
vent are provided by the EPCU through the internal
galvanically isolated intrinsic safety barrier. No additional
I.S. barrier is required.
The adjustable mounting bracket and the universally
mountable vent make the 6000 system easy to install
horizontally or vertically onto the enclosure. A component
kit is available for custom installations that fit specific
customer needs.
The 6000 control unit can monitor multiple enclosures
and control and accept inputs from two (2) EPV-6000
vents.
The 6000 series provides a complete system for purging
and pressurizing enclosures for hazardous location
operation.
One (1) operations copy of this manual must be
studied and retained by the system operator in
Note
addition to one (1) permanent file copy. User's
agents are responsible for transferring this manual
to the user/operator prior to start-up.
I/O Manual
5