Intended use
8
© Lutz-Jesco GmbH 2020
BA-10491-02-V01
Piston diaphragm dosing pump
MEMDOS KMS LB/LA
Operating instructions
3 Intended use
3.1 Notes on 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:
n
The dosing pump is operated in a manner which is not consistent with
these operating instructions, particularly safety instructions, handling
instructions and the section "Intended Use".
n
if people operate the product who are not adequately qualified to carry
out their respective activities.
n
no original spare parts or accessories of Lutz-Jesco GmbH are used.
n
Unauthorised changes are made to the device.
n
The user uses different dosing media than those indicated in the or-
der.
n
The user does not use dosing media under the conditions agreed with
the manufacturer such as modified concentration, density, tempera-
ture, contamination, etc.
3.2 Intended purpose
The dosing pump MEMDOS KMS LB/LA is intended for the following pur-
pose: the conveying and dosing of liquids.
3.3 Principles
n
Before delivery, the manufacturer inspected the dosing pump and op-
erated it under specific conditions (with a specific dosing medium
with a specific density and temperature, with specific pipe dimen-
sions, etc.) Since these conditions differ at every location of usage,
the delivery capacity of the dosing pump should be measured by
gauging it at the operating company's installation. For details on the
approximate values and the capacity of the dosing pump, refer to the
chapter 15 „Delivery characteristic curves“ on page 40.
n
Comply with the information regarding the operating and environmen-
tal conditions (see chapter 5 „Technical data“ on page 13).
n
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 re-
spective medium.
n
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 de-
pendence on the temperature of the media and the operating pres-
sure.
i
Information on the suitability of materials combined with
different dosing media can be found in the Compatibility Chart
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.
n
The dosing pump is not intended for outdoor use unless appropriate
protective measures have been taken.
n
Avoid leaks of liquids and dust into the casing and avoid direct expo-
sure to sunlight.
n
You must never operate dosing pumps in a potentially explosive at-
mosphere if they do not have corresponding nameplates or an appro-
priate EC Declaration of Conformity for potentially explosive atmos-
pheres.
3.4 Prohibited dosing media
The dosing pump must not be used for these media and substances:
n
Gaseous media
n
Radioactive media
n
Solid substances
n
Flammable media, if adequate protective measures are not taken
n
All other media that are not suitable for delivery using this dosing
pump
3.5 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
section 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:
3.5.1 Incorrect assembly
n
Unstable or unsuitable bracket
n
Dosing pump bolted wrongly or loosely
