Benchmark Platinum with Edge [II]: Reference Manual
SECTION 5: BENCHMARK PLATINUM 4000-5000N PART LIST
OMM-
0138_D • GF-212 • 2/24/2021 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page
61
of
91
Valve Proving System (VPS)
One Benchmark 4000 gas train (22373-4) and one 5000N and gas train (22358-4)
include the Valve
Proving System. This devise monitors the gas pressure on both sides of the Actuator. If the
pressure difference falls below a fixed value, indicating the failure of the Actuator or leakage in the
gas line, it triggers the shutdown of the unit. When this occurs, a
SSOV SWITCH OPEN
message
appears in the Edge Controller display.
Once the problem has been diagnosed and corrected, the Valve Proving device must be reset. This
is done by pressing the red
RESET
switch before the unit is restarted; the Edge Controller must
also be reset.
RED ALARM LIGHT & RESET SWITCH
•
OFF
during normal operation
•
ON
indicates a leak or Actuator failure
YELLOW RUN LIGHT
•
OFF
during normal operation
•
ON
during valve proving operation
•
ON
when the unit is in standby
