10
6100 Series Manual
3 Product Description
3.1 Overview
The purpose of the Fuchs Bebco EPS 6100 series Ex pxb, Zone 1 large enclosure / motor purge
and pressurization system is to allow general purpose or non-rated electrical equipment located in a general
purpose enclosure to operate in Zone 1 locations. Other purposes of the 6100 series system include heat,
moisture, and dust contamination prevention.
The 6100 series system operates by controlling and monitoring compressed instrument air or inert gas
through the protected enclosure/motor so as to remove and prevent the accumulation of flammable gas. The
system consists of the following parts:
The 6100-MP-EX-* control unit houses the controller and the pneumatics for purging/pressurization and
monitors these actions.
The 6100-MP-LPP-01 pressure sensor is usually mounted at the lowest pressure section of the motor
and feeds back the pressure to the controller. This pressure will determine if the enclosure is operating
at a safe pressure and will indicate the enclosure/motor pressure through the controller's user-interface
controller (UIC).
The EPV-6100-MP-* enclosure protection vent purges and maintains pressure within the enclosure/
motor. There is a pressure switch that detects orifice pressure/flow back to the controller, which indicates
if the correct flow is measured for purging. There are several vent sizes for different flow rates.
The optional 6000-TEMP-01 temperature hub and 6000-TSEN-01 temperature sensor are used to
monitor temperatures within the enclosure/motor. This signal runs back to the controller and can be used
to start the purging valve for cooling or take action through various means.
The controller's UIC allows programming of up to 2 switch inputs, temperature modules, enclosure power
contacts, 1 auxiliary output, and various user-configured functions. Through the user-interface menus,
configuration of the system for purge time, flow rates, monitoring and shut-off pressures, and enclosure size
are easily programmed for a fully automated system. Additional features allow inputs for system bypass,
enclosure power on/off, temperature monitoring for activation of the purging valve for cooling or auxiliary relay
for separated cooling or alarm, delay power shutdown, and more. The auxiliary output can be configured to
activate on input switch status, or any alarm states of pressure, flow, and temperature.
The 6100 system uses many components of the Fuchs Bebco EPS 6000 series purge and
pressurization system and can provide a complete system for purging and pressurizing enclosure/motors for
hazardous location operation.
Note!
One operations copy of this manual must be studied and retained by the system operator in addition to one
permanent file copy. User’s agents are responsible for transferring this manual to the user/operator prior to
start-up.
Product Description, Overview