Operation
Commissioning the dosing pump
39
© Lutz-Jesco GmbH 2014
Subject to technical changes.
140725
BA-10103-02-V01
Stepper Motor-driven Diaphragm Dosing Pump
MEMDOS SMART 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.
Before connecting the mains supply, connect the dosing lines.
Check that all the screw connections have been tightened
correctly 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.
Use suffi cient personal protective equipment.
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.
Release pressure in hydraulic parts.
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.
Follow the safety data sheet of the dosing medium.
Clean the dosing pump if dosing medium escapes.
Dispose of the dosing medium correctly.
CAUTION
Increased risk of accidents due to insuffi cient qualifi ca-
tion of personnel!
Dosing pumps and their accessories may only be installed, operated
and maintained by personnel with suffi cient qualifi cations. Insuffi cient
qualifi cation will increase the risk of accidents.
Ensure that all action is taken only by personnel with suffi cient and
corresponding qualifi cations.
Prevent access to the system for unauthorised persons.
CAUTION
Danger of personal injury and material damage!
Changing dosing media can lead to unpredictable reactions.
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 hazardous-
ness of the dosing medium, this can result in injury.
Stop the dosing pump before disconnecting it from the mains
supply.
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:
The dosing pump has been assembled and installed in accordance
with chapter 7 „Installing the Dosing Pump“ on page 18, chapter 8
„Hydraulic installation“ on page 19 and chapter 9 „Electrical
installation“ on page 30.
All the mechanical fastenings have been inspected to ensure
adequate load-bearing capacity.
The dosing head screws have been tightened with the correct torque
(see chapter 12.2 „Tighten up dosing head bolts“ on page 47).
All the hydraulic sections have been inspected to ensure they are
adequately leak-proof and that the through fl ow direction is correct.
The dosing pump has been set in accordance with chapter 10.5
„Menu settings at initial commissioning“ on page 34 and, if neces-
sary, the other settings in menu "System setup" (see chapter 10.7
„System setup“ on page 35) have been carried out.
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 fi rst whether
undesirable reactions could occur between the actual dosing
medium and the water.
