Appropriate and intended use
Notes to Product warranty
7
© Lutz-Jesco GmbH 2014
Subject to technical changes
140410
Stepper Motor-driven Diaphragm Dosing Pump
MEMDOS SMART LB
Operating Instructions
BA-10100-02-V02
3 Appropriate and intended use
3.1 Notes to Product warranty
Any non-designated use of the product can compromise its function or
intended protection. This leads to invalidation of any warranty claims!
Please note that liability is on the side of the user in the following cases:
The dosing pump is operated in a manner which is not consistent
with these operating instructions, particularly the safety and
handling instructions and the chapter entitled “Appropriate and
intended use“.
If people operate the product who are not adequately qualified to
carry out their respective activities,
No original spare parts or accessories of Lutz-Jesco GmbH are used,
Unauthorised changes are made to the device by the user,
The user uses different dosing media than those indicated in the
order,
The user does not use dosing media under the conditions agreed
with the manufacturer such as modified concentration, density,
temperature, contamination, etc.
3.2 Intended purpose
The MEMDOS SMART LB dosing pump is intended for the following
purpose: the conveying and dosing of liquids.
3.3 Device revision
This operating manual applies to the following devices:
3.4 Principles
Before delivery, the manufacturer inspected the dosing pump and
operated it under specific conditions (with a specific dosing medium
with a specific density and temperature, with specific pipe dimen-
sions, etc.) Since these conditions vary at every installation location,
you must calibrate the dosing pump after delivery. For information
on the calibration procedure refer to Chapter ”Calibrating the dosing
pump“ (see page 31). For details on the approximate values and the
capacity of the dosing pump, refer to the chapter entitled ”Delivery
characteristic curves“ (see page 40).
Information on the usage and environment (see "Technical specifica-
tions" on page 12) applies.
Any restrictions regarding the viscosity, temperature and density of
dosing media must be followed. You must only use dosing media at
temperatures above freezing point or below the boiling point of the
respective medium.
The materials of the dosing pump and hydraulic parts of the system
must be suitable for the dosing medium that is used. In this connec-
tion, note that the resistance of these components can change in
dependence on the temperature of the media and the operating
pressure.
The dosing pump is not intended for outdoor use unless appropriate
protective measures have been taken.
Avoid leaks of liquids and dust into the casing and avoid direct expo-
sure to sunlight.
You must never operate dosing pumps in a potentially explosive
atmosphere if they do not have corresponding nameplates or an
appropriate EC Declaration of Conformity for potentially explosive
atmospheres.
3.5 Prohibited dosing media
The dosing pump must not be used for these media and substances:
Gaseous media,
radioactive media,
solid substances,
combustible media,
all other media that are not suitable for delivery using this dosing
pump.
3.6 Foreseeable misuse
Below, there is information about the applications of the dosing pump or
associated equipment that are not considered to be intended use. This
chapter is intended to allow you to detect possible misuse in advance
and to avoid it.
Foreseeable misuse is assigned to the individual stages of the product
lifetime:
3.6.1 Incorrect assembly
Unstable or unsuitable bracket
Dosing pump bolted wrongly or loosely
3.6.2 Incorrect hydraulic installation
Suction and pressure lines dimensioned incorrectly
Unsuitable connection of the pipes due to wrong material or unsuit-
able connections.
Suction and pressure lines mixed-up
Damage to threads due to them being tightened too much
Bending of pipelines
No free return flow of the pressure relief valve
Excessive demand due to the pressure differences between the
suction and discharge valves
Device
Month / year of manufacture
MEMDOS SMART LB
04/2014 onwards
Table 3-1:
Device revision
Information on the suitability of materials combined with
different dosing media can be found in the Chemical Resist-
ance List of Lutz-Jesco GmbH.
The information in this resistance list is based on information
from the material manufacturers and on expertise obtained
by Lutz-Jesco from handling the materials.
As the durability of the materials depends on many factors,
this list only constitutes initial guidance on selecting material.
In all cases, test the equipment with the chemicals you use
under operating conditions.
i
