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Check the data sets imposed.
Press the start button on the machine to which the Sumo pump is connected.
Check pump start-up.
Check that the machine is adequately lubricated (if there are still some doubts about its correct functioning you can contact
the Dropsa S.p.A Technical Office and request a test procedure).
check that the direction of rotation of the electric motor is the one indicated by the indicator arrow, positioned on the
protective housing of the motor fan;
Check that the hydraulic connection is correct.
7.4
ADJUSTMENT/ CALIBRATION OF LEVEL PROBES
7.4.1 Pressure
It is possible to adjust working pressure by rotating the bypass screw clockwise to increase pressure or anticlockwise to reduce
pressure. During this operation pay attention to the pressure gauge positioned on the edge of the pump.
7.4.2 LASER PROBE SETTING, 24V CC OUT NO E NC (1 threshold)
1.
Reference notch
2.
Yellow led: lights when the set value is reached,
(outlet=ON).
3.
Lock ring
4.
Setting lock ring (be adjusted manually after unlocking).
5.
Green led: indicates the correct power supply (24V cc).
* To obtain a correct setting bring the lock ring to maximum setting value and then down to desire value.
On the pump is placed a label that shows the wiring diagram and setting values. The pump is normally equipped with pre setting
sensor to "L" thresholds (minimum level). Whereas other thresholds: MM (absolute maximum level), M (absolute level), LL
(absolute minimum level), can be set
by the user.
7.4.3 Procedure for calibrating the capacitive probe (optional)
Before being assembled the capacitive probe must be calibrated in accordance with the following sequence:
1.
connect the sensor electrically;
2.
immerse the sensor in the lubricant, down to half of its length;
3.
remove the sensor from the lubricant until it skims the surface of the lubricant;
4.
at this point there can be two possible types of operation:
-
the sensor status does not change: its sensitivity must be reduced (by acting on the screws for adjusting sensor
sensitivity) until its state of excitation is reached
-
if its status changes, the sensor already possesses the correct sensitivity
5.
after checking that the sensor has been correctly read, the sensor reading must be repeated at least three times
6.
Tighten the capacitive probe on the probe carrier rod, complying with the following assembly height:
-
450 mm (from below the cover up to the lower surface of the sensor) for a 30 kg tank
-
900 mm (from below the cover up to the lower surface of the sensor) for a 100 kg tank.
ATTENZIONE
:
è possibile impostare solo una soglia alla volta.
