AERONEX® H SERIES GAS PURIFICATION SYSTEM
Safety Features
Feature
Description
PGPS4 EGPS4 EGPS8 EGPS12
Circuit breaker
Provides additional electrical protection to the system and
includes a lock-out/tag-out.
N/A
Yes
Yes
Yes
Over temperature
rise condition
Monitored via thermocouple. Heaters sized to prevent runaway
conditions. As a secondary precautionary device, a high-
temperature hardware interlock is included on the EGPS4.
Yes
Yes
Yes
Yes
Hydrogen
detector
Triggers an EMO alarm and shuts down the system in the event
of a gas leak of hydrogen inside system enclosure.
N/A
Yes
Yes
Yes
Rate-of-rise
detector
If the detector senses a rapid increase in temperature inside the
system enclosure, an EMO alarm with be activated and shut
down the system.
N/A
Yes
Yes
Yes
EMO button
When activated, power is removed from the cabinet. The system
shuts down. The front panel and controller remain powered.
N/A
Yes
Yes
Yes
Remote EMO
Provides input for remote EMO activation and an output for
remote signal of EMO condition.
Yes
Yes
Yes
Yes
Remote alarm
In the event of a minor alarm in the system not requiring an
EMO shutdown, the system will send a signal to an external
sensing device that alerts the facility of the alarm.
Yes
Yes
Yes
Yes
Visual alarm
In the event of an alarm, a detailed description of the alarm
will be displayed in red on systems that include a touch screen.
In the event of an alarm on a system with LEDs, a red LED
indicator will activate.
Yes
Yes
Yes
Yes
Audible alarm
Alarm conditions result in an audible alarm.
N/A
Yes
Yes
Yes
Static pressure
switch/door
interlock
Monitors system for adequate static pressure. If enclosure
ventilation falls below acceptable levels, an alarm is generated
in the system; also serves as a door interlock to prevent the
system from being used while the door is opened.
N/A
Yes
Yes
Yes
Isolated
electrical
enclosure
Electronics are physically isolated from the main purifier cabinet in
an attached electrical enclosure in situations where high-voltage
lines are near potentially flammable gas. Low-voltage components
located inside the enclosure are SELV (safety extra low voltage).
N/A
Yes
Yes
Yes
Single or dual
contained plumb-
ing interface
Allows end user to use either single or dual contained plumbing
for installation.
Yes
Yes
Yes
Yes
