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6
Start up and operation
Safety information
Testing the overpressure sensor
Checking the hydraulic components
User qualification: trained qualified personnel
Ä Chapter 2.2 'User qualification' on page 15
WARNING!
Danger from hazardous substances!
Possible consequence: Fatal or very serious injuries.
Please ensure when handling hazardous substances
that you have read the latest safety data sheets provided
by the manufacture of the hazardous substance. The
actions required are described in the safety data sheet.
Check the safety data sheet regularly and replace, if
necessary, as the hazard potential of a substance can
be re-evaluated at any time based on new findings.
The system operator is responsible for ensuring that
these safety data sheets are available and that they are
kept up to date, as well as for producing an associated
hazard assessment for the workstations affected.
WARNING!
The inside of the dosing head needs to be constantly
filled with medium in normal mode, and the start-up and
run-down processes have to be designed in such a way
by the operator so that no explosive mixture is produced
inside the dosing head.
WARNING!: When using pumps with speed control, observe the instruc‐
tions in the frequency converter operating instructions.
Create an overpressure in the discharge line to check whether the over‐
pressure sensor triggers at the correct pressure.
CAUTION!
Do not reprogram the ATEX pressure sensor.
1.
Check the suction and discharge lines and the liquid end with valves
for leak-tightness, and tighten if necessary.
2.
Check whether the necessary flushing lines or bleed lines are con‐
nected.
WARNING!
Risk of injury from the fan impeller
The fan impeller beneath the motor's fan cowling can
cause severe injuries while it is turning.
–
The pump can only be connected to the mains
voltage when the fan hood is fitted.
Start up and operation
31
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