Start-Up; Operating - Grundfos DME Serie Instrucciones De Instalación Y Funcionamiento

6. Start-up

Step
1
2
3
4
100%
5
6
100%
7
100%
8
If the pump is not operating satisfactorily, see section
Action
Prior to start-up, retighten the dosing head screws:
• Cross-tighten the dosing head screws with a torque wrench once
before commissioning and again after 2-5 operating hours at 5.5
Nm (+ 0.5/- 0 Nm).
Connect the hoses/pipes:
• Connect the suction and dosing tubes/pipes to the pump.
• Connect a tube to the vent valve, if required, and lead the hose to
the tank.
• Never attach a hose to the drain opening.
Connect the cables:
• Connect the control/level cables, if any, to the pump, see section
4.6 Connection overview.
Switch on the electricity supply:
• The display is on.
• The green indicator light is flashing (the pump has stopped).
• Select language, if required, see section
Select the operating mode (see section
• Manual.
• Pulse.
• Analog.
• Timer.
• Batch.
Start the pump:
• Start the pump by pressing the on/off button.
• The green indicator light is permanently on.
Priming/venting:
• Press the button on the pump control panel and let the pump
100%
run without a counter pressure. Open the vent valve, if required.
When the buttons and
100%
priming, the pump can be set to run for a specific number of
seconds at maximum capacity.
Calibration:
• When the pump has been primed and is running at the right
counter pressure, calibrate the pump, see section
9. Fault finding
5.20 Language.

5.9 Operating

are pressed simultaneously during
7.
chart.
modes):
Calibration.
31