Features and Benefits
The EX 200™ control panel introduces new features never seen before in previous
FENWAL explosion protection system controllers. After years of market research,
FENWAL designed the EX 200™ to accommodate requests made by maintenance
personnel, installers, service engineers, and operators. The EX 200™ offers the
following new features:
Using a two-wire loop, the system can be armed and disarmed through a PLC or
DCS system to facilitate process control.
The design is compatible with detectors and extinguishers manufactured by
FENWAL’s sister companies in Europe allowing FENWAL to offer more detection
and extinguishing options such as dynamic pressure detection and
electromechanical extinguishers.
The status of an explosion vent can be monitored by the control panel. If the vent
opens, the system can be programmed to actuate a suppression system or isolation
system.
One of two detection circuits can be programmed to provide a pre-alarm signal
alerting operators that a potential explosion hazard exists. The pre-alarm can be
triggered by a heat detector, pressure detector, or other input that is set at a lower
threshold than the detectors used to actuate the system.
Unlike other controllers, the EX 200™ differentiates between primary and secondary
trouble conditions. The detection of secondary trouble condition will report to a
warning relay and not automatically shutdown the protected process equipment.
This allows operators to shutdown the process in an organized, planned manner.
Troubleshooting is easy with self-diagnostic LED fault indicators and built-in test
codes. By depressing the button, the location of fault can be pinpointed to a circuit
and/or subassembly.
The printed circuit board utilizes surface mount components that are robot populated
and in-circuit tested, providing high reliability and quality assurance.
Programmable battery disconnect and horn silencing makes the EX 200™ the
perfect controller for process equipment that is used infrequently such as used in
pilot runs and laboratory experiments.
Similar to other FENWAL control panels, the EX 200™ offers multiple programming
options, Class A or Class B detector wiring, extinguisher low pressure switch monitoring,
safety interlocks, battery backup, detection logic, and single key arming procedure. All
these features make the EX 200™ a valuable control solution for vital explosion
protection applications.
FENWAL
Protection Systems FSS/MC-519 Rev BC Page 7
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