Parker KE-MT Series Operating Manual page 30

EN | User Manual
Display Explanation
2 215 Default display: The fi gure to the left indicates the current processing step; the
fi gure 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 fl ashing.
With the optional dewpoint-sensing control, the following error messages might be dis-
played:
Display Cause
+20 ◊ Upper measuring range limit exceeded
999 ◊ Dewpoint sensor defective.
sens ◊ Dewpoint sensor not powered
o ◊ Cable defective or disconnected
-999 ◊ Sensor defective
LED Economy cycle (4)
This LED is only relevant in units that are equipped with the optional dewpoint-sensing
control. The diode lights up when the dryer is switched on and in the standby phase and no
regeneration air is required.
Vessel pressure gauge
On both vessels, pressure gauges are fi tted which show the operating overpressure. The
operating overpressure indicates the operating phase of the relevant vessel:
◊ During adsorption the pressure gauge should indicate the nominal operating overpressure.
◊ During regeneration the indication of the pressure gauge on the regenerating vessel
— should decrease in the expansion phase from operating overpressure to 0 bar
overpressure,
— indicate an overpressure of 0 bar in the dehumidifi cation phase.
With an increasing duration of operation, a higher overpressure can be indicated during
regeneration. This overpressure during regeneration is also designated as dam pressure.
◊ The dam pressure should not exceed 0.3 bar, otherwise read the instructions on page 38.
◊ During the pressure build-up phase the indication on the pressure gauge should again rise
to operating overpressure level.
28
Start-up
KE-MT 120-600