Start-up
HDK350_EN_01_2005-05-10
35
Digital display (3)
The digital display shows the individual programme steps and the respective
remaining time. For details regarding the sequence of the individual processing
steps and their duration, please refer to the logic control diagram, page 68.
Display
Explanation
2
215
Default display: The figure to the left indicates the current
processing step; the figure to the right shows the remaining
time in seconds.
In this example, step 2 is being completed, whereby there are
215 seconds remaining.
SEr.
After 8000 operating hours, "
SEr.
" (service) is displayed for
periods of 1 minute, alternating with the default display.
Notify the service personnel of the manufacturer, as a routine
service is now due.
– 25
With the
dewpoint-sensing control
option, the display shows the
currently measured dewpoint instead of the default data. The
range of display is -100 °C (-148 °F) to +20 °C (68 °F).
If the measured dewpoint exceeds the preset alarm limit (5 °C
(41 °F) above the switchover value), the displayed dewpoint
value is flashing.
With the optional
dewpoint-sensing control
, the following error messages might
be displayed:
Display
Cause
+20
Upper measuring range limit exceeded
999
Dewpoint sensor defective
sens
or
–999
Dewpoint sensor not powered
Cable defective or disconnected
Sensor defective
LED
Economy cycle
(4)
This LED is only relevant in units that are equipped with the optional
regeneration gas return for compressor synchronisation
and/or
dewpoint-
sensing control
. The LED is on, if the dryer is switched on but does not need
regeneration air (standby phase):
with compressor synchronisation: if the compressor is switched off and/or
if the dryer is set to variable cycle mode (dewpoint-controlled operation).
Vessel pressure gauge
On both vessels, pressure gauges are fitted which show the operating
overpressure. The operating overpressure indicates the operating phase of the
relevant vessel:
Summary of Contents for HDK 50/100
Page 1: ...High Pressure Dryer HDK 50 100 600 350 Operating Instructions Issue 05 2005 EN...
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Page 72: ...Dimensional drawing 72 HDK350_EN_01_2005 05 10 Items Option...