Tightness Check; Electrical Connection; Inputs And Outputs - Grundfos DTS Instrucciones De Instalación Y Funcionamiento

5.3 Tightness check

1. Before filling the dosing tank, check that the following
requirements are fulfilled:
– the suction lance is connected
– the optional drain valve is fully closed
2. Only with drain valve: Fill the dosing tank with water and
check for leaks.
Some media react with water.
Caution
If you dose a medium that reacts with water, use a
suitable other medium for the tightness check.

5.4 Electrical connection

Warning
Electrical connections must be established by trained
personnel.
Observe the local safety regulations.
Protect the cable connections and plugs against
corrosion and humidity.
Before connecting the mains cables, check whether
the supply voltage stated on the nameplates of the
dosing pump and electric stirrer matches the local
Caution
figures (permissible mains frequency deviation: ± 5
%). An incorrect mains voltage may destroy the
components.
• Fuse the motor with a motor overload switch of the appropriate
rating.
5.4.1 Electrical connection of the dosing pump
Refer to the installation and operating instructions for the dosing
pump.
5.4.2 Electrical connection of the electric stirrer
Refer to the installation and operating instructions for the electric
stirrer.
5.4.3 Electrical connection of the level switch
The suction unit and the electric stirrer are each fitted with a level
switch.
• Plug the connector of the level switch of the suction line into
the corresponding connector of the dosing pump.
The separate level control of the electric stirrer can be used via
an external control unit to deactivate the electric stirrer when the
tank is running empty.

5.4.4 Inputs and outputs

Refer to the installation and operating instructions for the dosing
pump and the suction line.
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