Jesco MAGDOS LK, Operating Instructions Manual

Page: 34 / 60

Operation
Commissioning the dosing pump
34
© Lutz-Jesco GmbH 2015
BA-10221-02-V03
Stepper Motor-driven Diaphragm Dosing Pump
MAGDOS LK
Operating Instructions
11 Operation
WARNING
Caustic burns or other burns through dosing media!
After connecting the mains supply, residual dosing media in the
dosing head can spray out.
ð Before connecting the mains supply, connect the dosing lines.
ð
Check that all the screw connections have been tightened
cor rectly and are leak-proof.
WARNING
Caustic burns or other burns through dosing media!
While working on the dosing head, valves and connections, you may
come into contact with dosing media.
ð
Use sufficient personal protective equipment.
ð
Rinse the dosing pump with a liquid (e.g. water) which does not
pose any risk. Ensure that the liquid is compatible with the dosing
medium.
ð
Release pressure in hydraulic parts.
ð
Never look into open ends of plugged pipelines and valves.
CAUTION
Danger of personal injury and material damage!
Dosing medium can escape if you loosen connections on the dosing
head, e.g. for venting, during operation.
ð
Follow the safety data sheet of the dosing medium.
ð
Clean the dosing pump if dosing medium escapes.
ð
Dispose of the dosing medium correctly.
CAUTION
Increased risk of accidents due to insufficient qualifica-
tion of personnel!
Dosing pumps and their accessories may only be installed, operated
and maintained by personnel with sufficient qualifications. Insuffi cient
qualification will raise the risk of accidents.
ð Ensure that all action is taken only by personnel with sufficient and
corresponding qualifications.
ð
Prevent access to the system for unauthorised persons.
CAUTION
Danger of personal injury and material damage!
Changing dosing media can lead to unpredictable reactions.
ð
Thoroughly clean the dosing pump and appropriate sections of the
plant to avoid chemical reactions.
CAUTION
Danger of automatic start up!
The dosing pump does not have an ON/OFF switch and may start to
pump as soon as it is connected to the mains supply. This means that
dosing medium can escape. Depending on the type and haz-
ardousness of the dosing medium, this can result in injury.
ð
Stop the dosing pump before disconnecting it from the mains
supply.
ð Ensure that the dosing pump has been installed correctly before
connecting it to the mains supply.
11.1 Commissioning the dosing pump
Precondition for action:
ü
The dosing pump has been assemble and installed in accordance
with “Installing the Dosing Pump“ (see page 15), “Hydraulic
instal lation“ (see page 16) and “Electrical installation“ (see page 26).
ü
All the mechanical fastenings have been inspected to ensure
adequate load-bearing capacity.
ü
The dosing head screws have been tightened with the correct torque
(see “Tighten dosing head bolts“ on page 40).
ü
All the hydraulic sections have been inspected to ensure they are
adequately leak-proof and that the throughflow direction is correct.
ü
The dosing pump has been set in accordance with “Menu settings at
initial commissioning“ (see page 29) and, if necessary, the other
settings in menu “System setup“ (see page 29) have been carried
out.
ü
Personnel have read all the operating instructions and understood
them completely.
i For initial commissioning, it is advisable to use water as the
dosing medium to check that the system is leak-proof and that
the dosing pump is functioning correctly. Check first whether
undesirable reactions could occur between the actual dosing
medium and the water.