Controls And Indicators - RFS APD-D Series Product Manual

The COMPRESSOR indicator will flash
once per second during the purging
process. The escaping air is audible inside
the dehydrator during this time. The
purge event ends when the lower
operational pressure is reached. The
purge valve will then close, and the unit
will activate to re-pressurize the system.
If there is a leak in the distribution system
that causes the pressure to drop to the
lower operational pressure prior to the
scheduled system purge event, then the
scheduled event will not occur and the
system purge timer will be reset.
5 CONTROLS AND INDICATORS
Picture 5.1 – APD-D Series Front Panel
Page 12 of 24
5.1 PRESSURE Gauge: A 0-15 psig (0-1 bar)
pressure gauge is provided. This gauge
indicates pressure
dehydrator output fitting.
5.2 Operational Indicators: LED indicators
are provided to monitor unit operation.
POWER (green): Illuminated when mains
power is present and unit is energized.
COMPRESSOR (yellow): Illuminated when
compressor is active and pressurized dry
air is being supplied.
LOW PRESSURE (red): Illuminated when
the system pressure has dropped below
the low pressure alarm threshold.
HIGH PRESSURE (red): Illuminated when
the system pressure has dropped below
the low pressure alarm threshold. This
indicator is only active on models
configured with the high pressure alarm
option.
HUMIDITY (red): Illuminated when the
system relative humidity has risen above
the humidity
indicator is only active on models
configured with the humidity alarm
option.
RUN TIME (red): Illuminated when the
system run time (active pumping time)
has exceeded
threshold. This indicator is only active on
models configured with the run time
alarm option.
5.3 DATA PORT: A USB port is supplied to
allow for downloading operational logs,
updating the unit's installed options and
configuration,
operational software in the field. These
features allow
without having to return the unit to the
factory, as well as remote troubleshooting
of the system using the operational logs.
602400011500
Revision C
at the APD-D
alarm threshold. This
the run time alarm
and updating
for option upgrades
the