Lutz-Jesco MEMDOS SMART LD Operating Instructions Manual

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Stepper motor-driven diaphragm dosing pump

MEMDOS SMART LD

Operating Instructions

Original operating instructions

Read the operating instructions!

The user is responsible for installation and operation related mistakes!

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Table of Contents

Operating Instructions

1 Notes to the Reader ............................................................ 4

1.1 General non-discrimination ...................................................... 4

1.2 Explanation of the signal words ................................................ 4

1.3 Explanation of the warning signs .............................................. 4

1.4 Identiﬁcation of warnings ......................................................... 4

1.5 Identiﬁcation of instructions for action ...................................... 4

2 Safety .................................................................................5

2.1 General warnings ..................................................................... 5

2.2 Hazards due to non-compliance with the safety instructions .....6

2.3 Working in a safety-conscious manner .....................................6

2.4 Personal protective equipment .................................................6

2.5 Personnel qualiﬁcation .............................................................6

3 Appropriate and Intended Use ........................................... 7

3.1 Notes on Product warranty ....................................................... 7

3.2 Intended purpose ..................................................................... 7

3.3 Device revision ........................................................................7

3.4 Principles ................................................................................7

3.5 Prohibited dosing media ........................................................... 7

3.6 Foreseeable misuse .................................................................7

4 Product description ...........................................................9

4.1 Properties ................................................................................ 9

4.2 Scope of delivery .....................................................................9

4.3 Structure of the dosing pump ...................................................9

4.4 Function description ..............................................................10

4.5 Rating plate (type label) ..........................................................10

4.6 Conveying characteristics ......................................................11

10.2 Explanation of the menu icons ..............................................31

10.3 Password protection ............................................................31

11 Operation ..........................................................................33

11.1 Commissioning the dosing pump..........................................33

11.2 Operating modes .................................................................34

11.3 External On / Off via Release input ........................................37

11.4 Decommissioning the dosing pump ......................................37

11.5 Shutting down in an emergency ...........................................37

11.6 Storage ...............................................................................37

11.7 Transportation......................................................................37

11.8 Disposal of old equipment ....................................................37

12 Maintenance ....................................................................38

12.1 Maintenance intervals ..........................................................38

12.2 Tighten up dosing head bolts ................................................39

12.3 Change the diaphragm .........................................................39

12.4 Clean suction and discharge valves ......................................39

13 Troubleshooting ............................................................... 40

13.1 Type of fault .........................................................................40

14 Spare parts ....................................................................... 43

14.1 Diaphragm spare parts kits ..................................................43

14.2 Dosing head spare parts kits including valves .......................43

15 Delivery characteristic curves ......................................... 44

16 EC declaration of conformity ...........................................45

5 Technical speciﬁcations .................................................. 12

5.1 Delivery capacity data ............................................................12

5.2 Operating conditions and limits ..............................................12

5.3 Electrical data ........................................................................13

5.4 Other data .............................................................................13

6 Dimensions ......................................................................14

6.1 MEMDOS SMART LD 2, 5, 10 ..................................................14

6.2 MEMDOS SMART LD 15, 20....................................................15

7 Installing the Dosing Pump .............................................. 16

7.1 Set up information .................................................................16

7.2 Installation examples .............................................................16

8 Hydraulic installations ..................................................... 17

8.1 Design of the system ..............................................................17

8.2 System piping ........................................................................18

8.3 Aligning the dosing head ........................................................18

8.4 Hydraulic connections ............................................................18

8.5 Connecting a leakage drain ....................................................20

8.6 Connecting the dosing head venting facility ............................20

8.7 Hydraulic accessories ............................................................21

9 Electrical installation ....................................................... 28

9.1 Principles ..............................................................................28

9.2 Description of connection sockets ..........................................29

17 Declaration of no objection .............................................. 46

18 Warranty claim .................................................................48

Notes ...................................................................................... 49

Index ......................................................................................50

10 Control .............................................................................. 31

10.1 Operator controls of the control unit ......................................31

BA-10102-02-V02

Table of Contents

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

1 Notes to the Reader

These Operating instructions contain information and behaviour rules for safe and designated operation of the dosing pump MEMDOS SMART LD.

Observe the following principles:

Operating Instructions

1.3 Explanation of the warning signs

Warning signs represent the type and source of a danger:

nread the entire operating manual prior to starting-up the device. nEnsure that everyone who works with or on the dosing pump has read

the operating instructions and follows them.

nKeep the operating instructions for the entire service life of the dosing

pump.

nPass on the operating instructions to any subsequent owner of the

dosing pump.

1.1 General non-discrimination

In these operating instructions, only the male gender is used where grammar allows gender allocation. The purpose of this is to make the text easy to read. Men and women are always referred to equally. We would like to ask female readers for understanding of this text simpliﬁcation.

1.2 Explanation of the signal words

Different signal words in combination with warning signs are used in these operating instructions. Signal words illustrate the gravity of possible injuries if the risk is ignored:

Signal word Meaning

DANGER! Refers to imminent danger. Ignoring this sign may

lead to death or the most serious injuries.

Warning sign Type of danger

General danger zone

Danger of electric shock

Danger of caustic or other burns

Danger of explosions

Danger of automatic start up

Danger of damage to machine or functional inﬂuences

Table 2: Explanation of the warning signs

1.4 Identiﬁcation of warnings

WARNING Refers to a potentially hazardous situation.

Failure to follow this instruction may lead to death or severe injuries.

CAUTION Refers to a potentially hazardous situation.

Failure to follow this instruction may lead to minor injury or damage to property.

Note Refers to a danger which, if ignored, may lead to

risk to the machine and its function.

Table 1: Explanation of the signal words

Warnings are intended to help you recognise risks and avoid negative consequences.

This is how warnings are identiﬁed:

Warning sign

SIGNAL WORD

Description of danger.

Consequences if ignored.

ðThe arrow signals a safety precaution to be taken to eliminate

the danger.

1.5 Identiﬁcation of instructions for action

This is how pre-conditions for action are identiﬁed:

üPre-condition for action which must be met before taking action.

This is how instructions for action are identiﬁed:

èSeparate step with no follow-up action.

1. First step in a series of steps.

2. Second step in a series of steps.

4Result of the above action.

Notes to the Reader

General non-discrimination

üAction completed, aim achieved.

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

2 Safety

Operating Instructions

2.1 General warnings

The following warnings are intended to help you to eliminate the dangers that can arise while handling the dosing pump. Risk prevention measures always apply regardless of any speciﬁc action.

Safety instructions warning against risks arising from speciﬁc activities or situations can be found in the respective sub-chapters.

DANGER!

Mortal danger from electric shock!

Wrongly connected or located cables or damaged ones can injure you.

ðConnect the device only to a socket outlet with earthing contact

protected by a ground fault circuit interrupter (GFCI).

ðReplace damaged cables without delay. ðDo not use extension cables. ðDo not bury cables. ðSecure cables to avoid being damaged by other equipment.

DANGER!

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.

WARNING

Caustic burns or other burns through dosing media!

The materials of the dosing pump and hydraulic parts of the system must be suitable for the dosing medium that is used. Should this not be the case, the dosing media may leak.

ðMake sure that the materials you are using are suitable for the

dosing medium.

ðMake sure that the lubricants, adhesives, sealants, etc. that you

use are suitable for the dosing medium.

Danger to life through explosions!

When using dosing pumps without ATEX certiﬁcation in a potentially explosive area, explosions can occur that result in fatal injuries.

ðNever use the dosing pump MEMDOS SMART LD in potentially

explosive areas.

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

correctly and are leak-proof.

CAUTION

Increased risk of accidents due to insufﬁcient qualiﬁcation of personnel!

Dosing pumps and their accessories may only be installed, operated and maintained by personnel with sufﬁcient qualiﬁcations. Insufﬁcient qualiﬁcation will increase 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 avoid chemical reactions.

BA-10102-02-V02

Safety

General warnings

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

2.2 Hazards due to non-compliance with the safety instructions

Failure to follow the safety instructions may endanger not only persons, but also the environment and the device.

The speciﬁc consequences can be:

nfailure of vital functions of the dosing pump and the system, nfailure of required maintenance and repair methods, ndanger for individuals through dangerous dosing media, ndanger to the environment caused by substances leaking from the

system.

2.3 Working in a safety-conscious manner

Besides the safety instructions speciﬁed in these operating instructions, further safety rules apply and must be followed:

naccident prevention regulations nsafety and operating provisions, nsafety provisions for handling dangerous substances (mostly the

safety data sheets to dosing media),

nenvironmental protection provisions, napplicable standards and legislation.

2.4 Personal protective equipment

Based on the degree of risk posed by the dosing medium and the type of work you are carrying out, you must use corresponding protective equipment. Read the Accident Prevention Regulations and the Safety Data Sheets to the dosing media ﬁnd out what protective equipment you need.

As a minimum, the following protective equipment is recommended:

Protective clothing Protective gloves Goggles

Corresponding protective equipment must be used during these tasks:

ncommissioning, nworking on the dosing pump while running, nshutdown, nmaintenance work, ndisposal.

nknowledge of safety equipment and the way this equipment functions, nknowledge of this operating manual, particularly of safety instructions

and sections relevant for the activity,

nknowledge of fundamental regulations regarding health and safety

and accident prevention.

All persons must generally have the following minimum qualiﬁcation:

nTraining as specialists to carry out work on the dosing pump

unsupervised,

nSufﬁcient training that they can work on the dosing pump under the

supervision and guidance of a trained specialist.

These operating instructions differentiate between these user groups:

2.5.1 Specialist staff

Specialist staff are able, thanks to their professional training, knowledge and experience as well as knowledge of the respective provisions, to do the job allocated to them and recognise and/or eliminate any possible dangers by themselves.

2.5.2 Trained persons

Trained persons have received training from the operator about the tasks they are to perform and about the dangers stemming from improper behaviour.

In the table below you can check what qualiﬁcations are the pre-condition for the respective tasks. Only people with appropriate qualiﬁcations are allowed to perform these tasks!

Qualiﬁcation Activities

Specialist staff

Trained persons

Table 3: Personnel qualiﬁcation

nAssembly nHydraulic installations nElectrical installation nMaintenance nRepairs nCommissioning nTaking out of operation nDisposal nFault rectiﬁcation

nStorage nTransportation nControl nFault rectiﬁcation

2.5 Personnel qualiﬁcation

Any personnel who work on the dosing pump must have appropriate special knowledge and skills.

Anybody who works on the dosing pump must meet the conditions below:

nattendance at all the training courses offered by the owner, npersonal suitability for the respective activity, nsufﬁcient qualiﬁcation for the respective activity, nTraining in handling of the dosing pump,

Safety

Hazards due to non-compliance with the safety instructions

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

3 Appropriate and Intended Use

Operating Instructions

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 the safety and handling instructions and the chapter 3 „Bestimmungsgemäße Verwendung“ auf Seite 7.

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 by the user, nThe user uses different dosing media than those indicated in the

order,

n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 dosing pump MEMDOS SMART LD is intended for the following purpose: the conveying and dosing of liquids.

3.3 Device revision

This operating instructions apply to the following devices:

Device Month / year of

manufacture

Firmware

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

exposure to sunlight.

n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:

nGaseous media, nradioactive media, nsolid substances, ncombustible media, nall other media that are not suitable for delivery using this dosing

pump.

MEMDOS SMART LD 03/2015 onwards From 01:49

Table 4: Device revision

3.4 Principles

n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 dimensions, 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 „Förderkennlinien“ auf Seite 44.

nComply with the information regarding the operating and environmen-

tal conditions (see chapter 5 „Technische Daten“ auf Seite 12).

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 respective 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 connection, note that the resistance of these components can change in dependence on the temperature of the media and the operating pressure.

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

nUnstable or unsuitable bracket nDosing pump bolted wrongly or loosely

BA-10102-02-V02

Appropriate and Intended Use

Notes on Product warranty

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

3.6.2 Incorrect hydraulic installation

nSuction and pressure lines dimensioned incorrectly nUnsuitable connection of the pipes due to wrong material or

unsuitable connections.

nSuction and pressure lines mixed-up nDamage to threads due to them being tightened too much nBending of pipelines nNo free return ﬂow of the pressure relief valve nExcessive demand due to the pressure differences between the

suction and discharge valves

nThrough-suction at installation without back-pressure valves nDamage due to undamped acceleration mass forces nExceeding the admissible pressure on the suction and discharge sides nUsing damaged parts

3.6.3 Incorrect electrical installation

nConnecting the mains voltage without a protective earth nUnsecured mains or one that does not conform to standards nNot possible to immediately or easily disconnect the power supply nWrong connecting cables for mains voltage nDosing pump accessories connected to wrong sockets nDiaphragm monitoring not connected or defective nProtective earth removed

3.6.4 Incorrect commissioning

nCommissioning with damaged plant nShut-off valves closed at commissioning nClosed suction or pressure line, e.g. due to blockages nPersonnel was not informed before commissioning nSystem was recommissioned after maintenance without all the

protective equipment and ﬁxtures, etc. being reconnected.

nInadequate protective clothing or none at all

3.6.5 Incorrect operation

nProtective equipment not functioning correctly or dismantled nModiﬁcation of the dosing pump without authority nIgnoring operational disturbances nElimination of operational disturbances by personnel without

adequate qualiﬁcations

nDeposits in the dosing head due to inadequate purging, particularly

with suspensions

nBridging the external fuse nOperation made more difﬁcult due to inadequate lighting or machines

that are difﬁcult to access

nOperation not possible due to dirty or illegible display of the dosing

pump

nDelivery of dosing media for which the system is not designed nDelivery of particulate or contaminated dosing media

nInadequate protective clothing or none at all

3.6.6 Incorrect maintenance

nCarrying out maintenance during ongoing operation nCarrying out work that is not described in the operating instructions nNo adequate or regular inspection of correct functioning nNo replacement of damaged parts or cables with inadequate

insulation

nNo securing against reactivation during maintenance work nUsing cleaning materials that can cause reactions with the dosing

media

nInadequate cleaning of the system nUnsuitable purging medium nUnsuitable cleaning materials nCleaning materials left in system sections nUsing unsuitable cleaning equipment nUsing the wrong spares or lubricants nContaminating the dosing medium with lubricant nInstalling spares without following the instructions in the operating

manual

nBlocking venting oriﬁces nPulling off sections of the plant nContamination at installation without a dirt trap nMixing up the valves nMixing up the sensor lines nNot reconnecting all the lines nDamaging or not installing all the seals nNot renewing seals nNot paying attention to safety data sheets nInadequate protective clothing or none at all

3.6.7 Incorrect decommissioning

nNot completely removing the dosing medium nDismantling lines while the dosing pump is running nDevice not disconnected from the power supply nUsing the wrong dismantling tools nInadequate protective clothing or none at all

3.6.8 Incorrect disposal

nIncorrect disposal of dosing media, operating resources and other

materials

nNo labelling of hazardous substances

Appropriate and Intended Use

Foreseeable misuse

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

4 Product description

Operating Instructions

4.1 Properties

The MEMDOS SMART LD is a stepper motor-driven diaphragm dosing pump that is used when precise dosing results are required.

They are characterized by the following properties:

nOutput range from 2 – 20 l/h, up to 15 bar nPower supply 110—240 V, 50/60 Hz, IP65, 25 W nMicroprocessor-controlled drive nIntegrated dosing head ventilation (only MEMDOS SMART LD 5 and LD

10 with plastic dosing head)

nSuitable for wall and ﬂoor mounting nMaterial ﬁnishes PVC, PP, PVDF and stainless steel nStroke frequency can be precisely adjusted via the keyboard nGraphic display nPulse input (increase and reduction) nLevel input with early warning and main alarm nRelease input for external start/stop nCalculation wizard for pulse operation available online

4.2 Scope of delivery

Please compare the delivery note with the scope of delivery. The following items are part of the scope of delivery:

nDosing pump MEMDOS SMART LD, nOne set each of hose clamping connections for the suction and

discharge sides for hoses with diameters of 4/6 mm, 6/9 mm and 6/12 mm (made of PVC, PP and PVDF),

n3 covering caps for electrical connections (mounted on the dosing

pump),

n2 conductive rubber bands for electrical contacts (installed in

connection sockets 1 and 3)

nMains cable, nOperating instructions, nInspection report and test certiﬁcate (optional), nAccessory kit (optional).

4.3 Structure of the dosing pump

4.3.1 General Overview

Fig. 1: Dosing pump overview MEMDOS SMART LD

No. Description

Dosing head

Drive unit

Control

4.3.2 Dosing head

Fig. 2: Dosing head

BA-10102-02-V02

No. Description

Valve and connection on the discharge side

integrated dosing head venting facility (plastic version only)

Arrow indicating the direction of throughﬂow of the dosing

medium (plastic version only)

Valve and connection on the suction side

Product description

Properties

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Material: Max. XXX l/h bei X bar Max. XXX l/h bei X bar IP XX, XXX V, XXXX Hz, XX W

Lutz-Jesco GmbH 30900 Wedemark Germany

XX/XXXX

S/N: XXXXXXXXXXP/N:

Made in Germany

*102A12345678*

*12345678012345*

MEMDOS SMART LD

Operating Instructions

4.3.3 Control elements

Fig. 3: Controller of dosing pump MEMDOS SMART LD

No. Description

Graphic display

Multifunction keys on the contol unit for operator inputs

Connection sockets for external operation or connecting

accessories

Mains cable for power supply

Table 5: Designation of components

4.5 Rating plate (type label)

There is information on the equipment about safety or the product's way of functioning. The information must stay legible for the duration of the service life of the product.

d e

f g h i

Fig. 4:

Rating plate MEMDOS SMART LD

No. Description

Product, type, nominal size

Part number

Type of material of dosing head/ type of material of seals

Maximum delivery capacity at average pressure

Maximum delivery capacity at maximum pressure

Protection classiﬁcation

m l

4.4 Function description

Dosing pumps are positive displacement pumps. They are used if precisely deﬁned delivery of a medium is necessary. A constant volume per stroke or time is delivered.

The system delivers or meters the dosing medium by means of a repeated sequence of suction strokes followed by pressure strokes. This results in a pulsing ﬂow.

If the dosing pump is in the suction stroke phase, the diaphragm is pulled into the rear ﬁnal position. Due to the resulting vacuum in the dosing head, the discharge valve closes, the suction valve opens and dosing medium ﬂows from the suction line into the dosing head.

If the dosing pump is in the pressure stroke phase, the diaphragm is moved into the front ﬁnal position. Due to the pressure in the dosing head, the suction valve closes and the dosing medium ﬂows through the discharge valve from the dosing head into the pressurised pipe.

Product description

Function description

Table 6: Rating plate

BA-10102-02-V02

Voltage supply

Frequency

Power consumption

WEEE label

Label showing conformity with applicable European directives

Month / year of manufacture

Serial number

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

4.6 Conveying characteristics

The design of the dosing pump MEMDOS SMART LD enables it to perform the pressure and suction stroke at different speeds. For low supply rates, for example, the dosing pump performs the suction stroke at the maximum speed and adjusts the speed of the pressure stroke to match the desired supply rate. This produces a constant supply stream, which gives you a low-pulsation, smooth dosing.

Settings

100 % delivery rate Time

50 % delivery rate Time

10 % delivery rate Time

Fig. 5: Selection of available dosing programs

Pressure stroke

Suction stroke

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Product description

Conveying characteristics

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

5 Technical speciﬁcations

5.1 Delivery capacity data

Please note that some of this data only represents guide values. The actual capacity of a dosing pump depends on various factors. For approximate values of the delivery capacity at different pressures, refer to chapter 15 „Delivery characteristic curves“ (see page 46).

MEMDOS SMART LD Size

Information Value

l/h 2,4 5.3 10.8 14.2 19.2

Delivery capacity at max. back pressure

ml/stroke 0,22**** 0.59 1.20 1.58 2.13

Max. back pressure bar 20 15 9 5 4

l/h 2,6 6 11.3 14.7 19.7

Delivery capacity at average back pressure

ml/stroke 0,28 0.67 1.26 1.63 2.19

Average back pressure bar 10 8 5 3 2

Max. stroke frequency RPM 150

2 5 10 15 20

Suction height for non-gassing media mWS 3

Table 7: Output data

5.2 Operating conditions and limits

MEMDOS SMART LD Size

Information Value

Approved ambient temperature °C 5 – 45 (with PVC components 5 – 40)*

Relative humidity % Max. 90

Max. sound pressure level dB(A) 51 – 56

Max. supply pressure mbar 800

Viscosity limits mPa s 300** / 1000***

Adjustable dosing range % 0 – 100

Table 8: Operating conditions and limits

* Use of the dosing pump at ambient temperatures below 5 °C must be checked individually. In such cases, please contact the manufacturer.

** With a viscosity of ~300 mPa s and above, you must use spring-loaded valves.

*** If the viscosity is above 1000 mPa s, this must be checked individually.

2 – 20

**** Only for LK 2 with PVDF or stainless steel dosing head, otherwise max. 16 bar counterpressure.

Technical speciﬁcations

Delivery capacity data

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

5.2.1 Permitted media temperatures

Information Value MEMDOS SMART LD (all sizes)

Dosing head made of PVC °C 0 – 35

Dosing head made of PP °C 0 – 60

Dosing head made of PVDF °C 0 – 80

Dosing head made of stainless steel (1.4571) °C 0 – 80

Table 9: Approved media temperature

5.3 Electrical data

Operating Instructions

Information Value

MEMDOS SMART LD (all sizes)

Voltage supply 110 – 240 V AC, -10% / +5%, 50/60 Hz

Power consumption W 25

Table 10: Electrical speciﬁcations

5.4 Other data

MEMDOS SMART LD Size

Information Value

Weight (with dosing head made of PVC, PP or PVDF) kg ~ 2.2

Weight (with dosing head made of stainless steel (1.4571)) kg ~ 3.3

Diameter of diaphragm mm 33 39 54

Electrical cable m 1.8 m (with mains plug)

Protection class IP65 (with covering caps on the connections)

Insulation class F

Valve connection G 5/8 male

2 5 10 15 20

Valve size DN3 DN4

Table 11: Other data

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Technical speciﬁcations

Electrical data

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

~ 81

~ 17

6 Dimensions

6.1 MEMDOS SMART LD 2, 5, 10

~ 260

205~

Operating Instructions

120 L

~ 180

~ 59

76~43~

6,5

Fig. 6: Dimensioned drawing of MEMDOS SMART LD 2, 5, 10 with dosing head made of PVC, PP or PVDF (all dimensions in mm)

237~

202~

L~ 120

176~

6,5

~ 56

Fig. 7: Dimensioned drawing of MEMDOS SMART LD 2, 5, 10 with dosing head made of stainless steel (1.4571) (all dimensions in mm)

100

116

100

Hose clip Material Size Nominal diameter L

LD 2

LD 5, 10, 15, 20

Dimensions

MEMDOS SMART LD 2, 5, 10

PVC / PP / PVDF

Stainless steel

PVC / PP / PVDF

Stainless steel (1.4571) / PVDF

BA-10102-02-V02

4/6 mm DN3 31

4/6 mm DN3 54

4/6 mm DN4 31

1/4x3/8” 1/4" 34

6/9 mm

DN6

6/12 mm DN6 15

4/6 mm DN4 50

6/9 mm DN6 54

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

6.2 MEMDOS SMART LD 15, 20

2 3 7~

2 0 2~

Operating Instructions

1 8 1~

~ 130 (plastic)

~ 132 (stainless steel)

5 3~

8 4~ 17, 5~

6,5

Fig. 8: Dimensioned drawing of MEMDOS SMART LD with dosing head made of PVC, PP, PVDF or stainless steel (1.4571) (all dimensions in mm)

Connection Material Scale Nominal width L

4/6 mm DN4 31

1/4x3/8" 1/4" 34

PVC / PP / PVDF

6/9 mm DN6 34

Hose clip

6/12 mm DN6 15

Stainless steel (1.4571) /

PVDF

4/6 mm DN4 50

6/9 mm DN6 54

100

116

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MEMDOS SMART LD 15, 20

Dimensions

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

7 Installing the Dosing Pump

Operating Instructions

DANGER!

Mortal danger from electric shock!

Electrically conductive liquid can enter pump housings, cable screw connections and mains connectors.

ðMake sure that all protective measures comply at least with the

requirements of protection class IP 55.

ðAlways set up the dosing pump such that water cannot enter the

housing.

CAUTION

Danger of personal injury and material damage!

A dosing pump that is difﬁcult to access represents a danger due to incorrect operation and faulty maintenance.

ðInstall the dosing pump such that it is accessible at all times.

7.1 Set up information

When installing, follow the basic principles below:

nThe valves must be vertical: Discharge valve at top, suction valve at

bottom. in this connection, pay attention to the arrow on the dosing head. The dosing head must be aligned such that the arrow points vertically upwards.

nYou should install the dosing pump at a convenient height for

operation.

nIt must not be installed under the ceiling. nThe frame of foundation for ﬁxing the dosing pump must not be

subjected to jolts. The pump must be vibration-free and stable.

nThere must be enough free space in the area of the dosing head and

the suction and discharge valves for these parts to be easily dismantled if required. The entire space requirement for installation and maintenance is approximately 1 m².

nThe distance from the sides of the dosing pump to the wall or other

dosing pumps or equipment must be at least 3 cm. There must be a guaranteed ﬂow of circulating air.

nThe maximum ambient temperature must be complied with, see

chapter 5.2 „Betriebsbedingungen und Grenzen“ auf Seite 12. If necessary, radiated heat from surrounding equipment must be screened.

nAvoid exposure to direct sunlight. nThe dosing pump is not intended for use out of doors unless

appropriate protective measures have been taken to prevent dust and water from entering the housing.

nFor the dimensions of the fastening holes, refer to chapter 6

„Abmessungen“ auf Seite 14.

nThe tightening torque for the fastening bolts is 1.5 – 2 Nm.

7.2 Installation examples

7.2.1 Installation on a wall console

Fig. 9: Installation on a wall console

To reduce the structure-borne noise, the dosing pump is bolted to the wall bracket using rubber elements. The materials necessary for this are included with the wall bracket.

7.2.2 Installation on the wall

Fig. 10: Installation on the wall

The dosing pump can be mounted to the ﬂoor or directly to the wall without the need for additional elements. Turn the dosing head appropriately to ensure the ﬂow direction of the medium through the dosing head.

Installing the Dosing Pump

Set up information

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

8 Hydraulic installations

In this chapter, you will ﬁnd information about the hydraulic parts of a system that you should install or that can install additionally. In many cases, you must install hydraulic accessories to be able to use all the functions that the dosing pump MEMDOS SMART LD offers, to guarantee functional safety or to achieve a high level of dosing precision.

WARNING

Caustic burns or other burns through dosing media!

The materials of the dosing pump and hydraulic parts of the system must be suitable for the dosing medium that is used. Should this not be the case, the dosing media may leak. Depending on the type and hazardousness of the dosing medium, this can result in injury.

ðMake sure that the materials you are using are suitable for the

dosing medium.

ðMake sure that the lubricants, adhesives, sealants, etc. that you

use are suitable for the dosing medium.

WARNING

Operating Instructions

NOTICE

Damage to drives due to overloading

The pressure conditions between the suction and discharge sides must be balanced; otherwise, overloading can result. This can lead to uncontrolled dosing processes, damage to the plant pipework and to the dosing pump.

ðEnsure that the pressure on the discharge side is at least 1 bar

than on the suction side.

NOTICE

Locking of threads

Stainless steel and plastic parts (particularly those made of PVC) that are bolted together in a detachable connection (e.g. the dosing head and the valves) can lock. This makes them difﬁcult to release.

ðBefore bolting, grease the corresponding parts with a lubricant

(e.g. PTFE spray). Ensure that the lubricant is compatible with the dosing medium.

Caustic burns or other burns through dosing media!

If there is a diaphragm rupture, the dosing medium can escape in an uncontrolled way. Depending on the type and hazardousness of the dosing medium, this can result in injury.

ðInstall a leakage drain.

WARNING

Caustic burns or other burns through dosing media!

The dosing pump can generate a pressure that is many times the rated one. A blocked pressure line can lead to dosing medium escaping. Depending on the type and hazardousness of the dosing medium, this can result in injury.

ðInstall pressure relief valves.

CAUTION

Danger of personal injury and material damage!

High peak pressures can lead to piping vibrating and cause them to snap. This can result in injury due to uncontrollable piping or escaping dosing media.

ðInstall pulsation dampeners.

8.1 Design of the system

nThe dosing pumps technical data (see chapter 5 „Technische Daten“

auf Seite 12) must be taken into account and the plant s layout must be set up appropriately (e.g. pressure loss when rating the lines with regard to their nominal diameter and length).

nThe entire system and its integrated dosing pump must be designed

in such a way that an escaping dosing medium (due to the failure of wearing parts such as the diaphragm, or burst hoses) does not lead to permanent damage to system parts or the premises.

nThe leakage opening of the dosing head must be visible so that you

can detect a diaphragm rupture. It must be possible for the outﬂow from the leakage drain to be on a free downwards gradient.

nIf you use hazardous dosing media, the installation must be designed

such that no disproportionately high consequential damages arise due to dosing media escaping.

nTo avoid dosing errors after the end of the process, the dosing pump

must be locked hydraulically.

nTo allow you to easily inspect the pressure conditions in the system,

you should provide connections for pressure gauges close to the suction and discharge valves.

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Hydraulic installations

Design of the system

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

4/6

6/9

Operating Instructions

8.2 System piping

nThe system piping must not exert any force on the connections and

valves of the dosing pump.

nThis means that steel piping should be connected to the dosing pump

by means of ﬂexible pipe sections.

nThe nominal diameters of the pipework and the installed ﬁttings

should be rated the same as or greater than the nominal diameters of the dosing pump's suction and discharge valves.

nThe suction line should be kept as short as possible. nYou should avoid intertwined hoses. nAvoid loops, since air bubbles can collect.

8.3 Aligning the dosing head

8.4 Hydraulic connections

8.4.1 Connecting hose clips

Choose the hose connection according to the condition of the hose (material, inner diameter, wall thickness) in order to ensure maximum pressure resistance.

8.4.1.1 Size 4.6 and 6.9

Fig. 12: Hose clips 4/6 and 6/9 (internal and external diameters in mm)

Perform the following working steps:

Fig. 11: Aligning the dosing head

When connecting the dosing lines to the dosing pump, you must observe the direction of through-ﬂow (see arrow b). The dosing head must be aligned vertically. The alignment can be changed in 90° intervals.

The suction valve c must always point downwards. Accordingly, arrow b and pressure valve a always point upwards. This is irrespective of the positioning of the dosing head to the drive.

1. Cut the hose a to length neatly and at an exact right angle.

2. Place a gasket that is suitable for the dosing medium between the

connection e and the valve.

3. Screw the connecting piece e to the dosing pump's valve using the

4. Thread the union nut c and the clamping ring d onto the hose.

5. Plug the hose a all the way in to the grommet of connection piece

6. Push the clamping ring d onto the grommet of connection piece e

and screw it to the union nut .

7. Carry out the same procedure with the connection to the dosing

pump's other valve.

üHose clip connected.

Hydraulic installations

System piping

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.4.1.2 Size 6/12

Fig. 13: Hose clip 6/12 (internal and external diameter in mm)

Size 6/12 hose clips only have a union nut. It clamps the hose onto the grommet of the connection piece and at the same time fastens on the dosing pump's valve.

Perform the following working steps:

1. Cut the hose a to length neatly and at an exact right angle.

2. Place a gasket that is suitable for the dosing medium between the

connection d and the valve.

3. Push the union nut b and the cutting ring c over the hose a.

4. Press the end of the hose a onto the grommet of connection piece

d. You can do this more easily by moistening the end of the hose on the inside or applying some lubricant to the grommet in the cone area. You should push at least two thirds of the hose onto the grommet of the connection piece.

5. Push the cutting ring c over the hose a into the cone area on the

grommet of connection piece d.

6. Screw the union nut b onto the valve of the dosing pump.

8.4.2 Making the bonded connection

Fig. 14: Glue-in connection

Perform the following working steps:

1. Cut the PVC tube to length.

2. Push the union nut onto the tube.

3. Stick the bonded coupling sleeve b to the tube (follow the

instructions of the adhesive manufacturer).

4. Screw the union nut onto the valve of the dosing pump. Use a gasket

that is suitable for the dosing medium.

üBonded connection made.

8.4.3 Making the cemented connection

üHose clip connected.

Fig. 15: Cemented connection

Perform the following working steps:

1. Cut the tube to length.

2. Cut the thread b onto the end of the tube.

3. Push the union nut a onto the tube.

4. Seal the thread b. When choosing your sealing material, take into

account its resistance to material, temperature and pressure.

5. Screw the union nut onto the valve of the dosing pump. Use a gasket

that is suitable for the dosing medium.

üCemented connection made.

Under normal conditions, you only need to screw the hydraulic connections ﬁnger-tight. However, due to the material settling, the pre-tension of the screw connection can slacken. This means that you must re-tighten the screw connection before carrying out commissioning.

BA-10102-02-V02

Hydraulic installations

Hydraulic connections

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.5 Connecting a leakage drain

Lutz-Jesco GmbH dosing pumps are produced to the highest of quality standards with a long service life. However, some parts are subject to operational wear. This is the case particularly with the diaphragms that are continuously subjected to forces during the suction and discharge strokes and to the effects of the dosing medium.

If a diaphragm ruptures, the dosing medium starts to leak. This leakage is drained via the leakage opening. On the ﬂange of the dosing head, there are three openings for this purpose. Depending on the alignment of the dosing pump, the leakage is drained via the downward opening.

Fig. 16: Openings of the leakage drain

8.6 Connecting the dosing head venting facility

The dosing heads of the MEMDOS SMART LD 5 and LD 10 have an integrated dosing head venting unit (except for dosing heads made of stainless steel).

For the procedure when venting, refer to chapter 11.1.1 „Venting the dosing pump“ on page 34.

Fig. 17: Dosing head venting facility with hose connection

Perform the following working steps:

6. Connect a 4/6 hose to the dosing head venting facility.

7. Route the other end of the hose into the dosing tank or a collecting

tank.

üDosing head venting facility connected.

NOTICE

Damage to drives due to effervescent media

If a hose is connected to the leakage drain and it is routed back into the dosing tank, effervescent media can enter the drive and damage it.

ðCollect the the leakage in a collecting pan. ðAs an alternative, you can route the leakage back to to the dosing

tank using a funnel. You should install the funnel at an adequate distance from the leakage opening.

Hydraulic installations

Connecting a leakage drain

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.7 Hydraulic accessories

The following chapter is intended to give you an overview of installation options.

Please note that these operating instructions are no substitute for the instructions supplied with the accessories in each case. The corresponding documentation supplied with the product applies to safety information and provides exact instructions on assembly.

8.7.1 Injection nozzle

If the pressure line enters a main line, it is advisable to install an injection nozzle.

Injection nozzles have three main functions:

nDosing the medium into a main line, nPreventing ﬂowback into the pressure line through a non-return valve.

Notes on assembly:

nDouble-ball injection nozzles must be installed into the main line

vertically from the bottom. You can install hose and spring-loaded injection nozzles any way you like.

nWith dosing media that tend to crystallize, it is advisable to carry out

installation into the main line from the bottom. This prevents air bubbles from being trapped.

nMany dosing media tend to contaminate the injection nozzles, which

can lead to blockages. In cases like this, it is advisable to install an injection nozzle that is easy to dismantle and block off.

No. Description

Main line

Injection nozzle with shut-off valve

Pressure-relief valve

Dosing tank

Pressure line

Dosing pump MEMDOS SMART LD

Wall bracket

Shut-off valve

Suction line

Table 12: Designation of components

Fig. 18: Installation with an injection nozzle

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Hydraulic installations

Hydraulic accessories

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.7.2 Contact-type water meter

The contact-type water meter measures the throughﬂow in a pipe and sends a pulse to the dosing pump, which then starts dosing. This means that ideal proportional dosing is also possible with large throughﬂow ﬂuctuations.

The contact water meter is connected to connection port 2 (see chapter

9.2.2 „Anschlussbuchse 2“ auf Seite 29).

The ratio of throughﬂow to executed strokes of the dosing pump is determined in "Pulse input" mode (see chapter "Water meter" on page

24).

8.7.3 Pressure-relief valve

Pressure relief valves have an important safety function for protecting the dosing pump and the associated pipes and ﬁttings. The dosing pump can generate a pressure that is many times the rated one. A blocked pressure line can lead to dosing medium escaping.

An improperly high pressure can occur if:

nthe shut-off valves are closed even though the dosing pump is

running,

npipes block.

At an appropriate pressure, a pressure relief valve opens a bypass line and protects the system in this way from damage caused by over-pressure.

Notes on assembly:

nThe line for returning dosing medium from the pressure relief valve

must be routed to the dosing tank or to a collecting pan.

nThe pressure in the dosing tank must not be too high so that it is

possible to accommodate the returned dosing medium.

nAs an alternative, the system can return dosing medium into the

suction line in front of the dosing pump. In this case, there must not be a non-return valve or a foot valve in the suction line.

nYou should install the pressure relief valve as close as possible to the

dosing head.

Fig. 19: MEMDOS SMART LDInstallation on contact-type water meter

Fig. 20: Installation with pressure relief valve – returning to the suction line

Hydraulic installations

Hydraulic accessories

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.7.4 Back-pressure valve

Fig. 21: Installation with pressure relief valve – returning to the dosing tank

No. Description

Main line

Back-pressure control valves are necessary if:

nthere are considerably ﬂuctuating system pressures, nthe pressure on the suction side is higher than on the discharge side

or if you intend to carry out dosing into depressurized lines.

In cases like this, if you do not use a back-pressure valve, imprecise dosing results will occur or overloading will result. The back-pressure valve solves these problems by generating a deﬁned, constant backpressure.

In some circumstances, a back-pressure valve is unnecessary if you use a hose injection nozzle and if the backpressure that it generates is adequate.

Injection nozzle with shut-off valve

Pressure-relief valve

Dosing tank

Pressure line

Dosing pump MEMDOS SMART LD

Wall bracket

Shut-off valve

Suction line

Table 13: Designation of components

Fig. 22: Installation with a back-pressure valve

No. Description

Main line

Injection nozzle with shut-off valve

Back-pressure valve

Pressure-relief valve

Table 14: Designation of components

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Dosing tank

Hydraulic installations

Hydraulic accessories

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

No. Description

Pressure line

Dosing pump MEMDOS SMART LD

Wall bracket

Shut-off valve

Suction line

Table 14: Designation of components

8.7.5 Pulsation dampener

Pulsation dampeners have the following functions:

nDamping pulsating delivery ﬂows for processes that require

low-pulsation dosing,

nReducing the throughﬂow resistance with long pipelines.

Operating Instructions

When installed on the suction side:

nDamping of acceleration mass forces and with this reduction of wear

on the dosing pump.

nPreventing cavitation (pull-off of the liquid column) due to too high

acceleration.

However, pulsation dampeners also have important safety functions, since they prevent pressure peaks from arising that lead to piping vibrating and cause them to snap.

This problem can occur:

nwith the high amplitudes of the vibrations, nwhen using long pipes (the severity of the pulsation increases with the

length of the pipe),

nwhen using rigid piping instead of elastic hoses.

Notes on assembly:

nYou should carry out assembly in the direct vicinity of the location

where you want to damp the pressure peaks (directly in front of the suction valve or directly behind the discharge valve).

nPulsation dampeners should be installed with throttle valves or

back-pressure valves installed directly behind them. By setting the valves appropriately, you can further-optimise damping of the pulsations.

nTo prevent unnecessary pipe friction losses, you should lay the

connecting line straight and in accordance with the rated width of the pulsation dampener.

nYou must separately fasten relatively large pulsation dampeners and

ones with hose connections.

nPipelines must not transfer any mechanical tensions onto the

pulsation dampener.

Fig. 23: Installation with a pulsation dampener

No. Description

Main line

Injection nozzle with shut-off valve

Pulsation dampener

Dosing tank

Pressure line

Dosing pump MEMDOS SMART LD

Wall bracket

Suction pulsation dampener

Suction line

Shut-off valve

Table 15: Designation of components

Hydraulic installations

Hydraulic accessories

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.7.6 Priming aid

Priming aids are particularly advisable:

nin the case of dosing pumps with small volumetric displacements per

stroke or with low stroke length settings,

nwith high suction hights, nwith highly dense dosing media, nat priming for the ﬁrst time due to dry valves and air in the suction line

and the dosing head,

nin dosing systems with frequent downtimes.

Further advantages resulting from priming aids:

npreventing cavitation in the suction line, ngas removal, noptical dosing control with small amounts, nsmoothing of the suction ﬂow.

No. Description

Dosing tank

Suction line

Table 16: Designation of components

8.7.7 Level monitoring

Level monitoring of suction-side feeding of the dosing medium to prevent the tank being sucked dry and to ensure that it can be topped up again in good time.

Fig. 24: Installation with a priming aid

No. Description

Main line

Injection nozzle with shut-off valve

Priming aid

Dosing pump MEMDOS SMART LD

Wall bracket

Table 16: Designation of components

Fig. 25: Installation with a level monitoring system

No. Description

Main line

Injection nozzle with shut-off valve

Pressure line

Dosing pump MEMDOS SMART LD

Dosing tank

Suction line with level monitoring

Table 17: Designation of components

BA-10102-02-V02

Hydraulic installations

Hydraulic accessories

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

8.7.8 Dosing of suspensions

When dosing suspensions, the dosing head must be rinsed regularly to prevent depositing. To do this, you install a feed line for the rinsing medium (water) in the suction side installation.

Fig. 26: Dosing of suspensions

No. Description

8.7.9 Suction pressure regulator

A suction pressure regulator may be necessary if the suction-side installation of the system demonstrates a varying suction pressure or supply pressure:

nDosing pumps that are installed above dosing tanks deliver less as the

tank empties, since the suction head increases.

nDosing pumps that are installed below dosing tanks deliver less as the

tank empties, since the positive delivery pressure reduces.

Further problems that can occur:

nGreater wear on the dosing pump, e.g. diaphragm rupture due to the

effects of heavy forces with particularly high tanks and high-density dosing media.

nIdling of the dosing tank in the case of a diaphragm rupture or pipe

breakage.

nImpermissibly high forces in the pump transmission that occur when

dosing pumps receive the dosing medium directly from the pressure line.

nReduced performance or destruction of ﬁttings due to cavitation with

long suction lines.

Installing a suction pressure regulator is a remedy for the problems above. The suction pressure regulator is opened by the dosing pump's suction pressure. This ensures that no dosing medium can ﬂow if the dosing pump is not running or no vacuum can be generated following a pipe fracture.

Notes on assembly:

nWhen using a large suction pressure regulator, you should provide a

pulsation dampener on the suction side.

Main line

Injection nozzle with shut-off valve

Pressure line

Dosing tank

Dosing pump MEMDOS SMART LD

Wall bracket

Suction line

Shut-off valve

Line for rinsing the dosing head

Table 18: Designation of components

Fig. 27: Installation with a suction pressure regulator

Hydraulic installations

Hydraulic accessories

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

No. Description

Main line

Injection nozzle with shut-off valve

Pressure line

Dosing tank

Dosing pump MEMDOS SMART LD

Wall bracket

Suction line

Suction pressure regulator

Shut-off valve

Table 19: Designation of components

Operating Instructions

BA-10102-02-V02

Hydraulic installations

Hydraulic accessories

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

9 Electrical installation

Operating Instructions

DANGER!

Mortal danger from electric shock!

If there is an electrical accident, you must disconnect the dosing pump from the mains as quickly as possible.

ðInstall an emergency stop switch or integrate the dosing pump into

the plant safety concept.

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 hazardousness of the dosing medium, this can result in damage to property or to injury.

ðInstall an emergency stop switch or integrate the dosing pump into

the plant safety concept.

NOTICE

Damage due to incorrect mains voltage

The dosing pump can be damaged if you connect it to the wrong mains voltage.

ðObserve the information on the mains supply that is given on the

nameplate.

9.1 Principles

nThe dosing pump has a 110 – 240 V AC 50/60 Hz wide-range power

supply unit.

nThe electrical connection comply with local regulations. nThe dosing pump must be plugged into a grounded power outlet. nTo avoid dosing errors at the end of the process, the dosing pump

must be locked electrically.

nThe dosing pump must not be operated by switching the mains

voltage on or off.

nSignal cables must not be laid parallel to high-voltage current lines or

mains cables. You must route supply and signal lines in separate channels. An angle of 90° is required at line crossings.

NOTICE

Compromised functions due to open contacts

MEMDOS SMART LD is delivered with two conductive rubber bands installed in connection sockets 1 and 3. These conduct electricity and ensure that the contacts in the connection sockets remain closed when no cables are connected. If the conductive rubber bands in connection sockets 1 and 3 are missing or not correctly installed and there are no cables connected to the sockets, it is not possible to start the dosing pump.

ðInsert the conductive rubber bands in connection sockets 1 and 3

if there are no cables connected to the connection sockets.

ðEnsure that the conductive rubber bands are installed on the

correct contacts (see instructions in following section).

NOTICE

Insufﬁcient electromagnetic compatibility

When you connect the dosing pump to a socket without an attached protective earth, it is not possible to guarantee the interference radiation and interference immunity according to EMC regulations.

ðOnly connect the dosing pump to sockets with an attached

protective earth.

Electrical installation

Principles

Fig. 28: Removing the conductive rubber bands

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Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

9.2 Description of connection sockets

Fig. 29: Connection sockets 1 – 3

Inputs Connection socket

Release input 1

Pulse input 2

Level input 3

Table 20: Inputs of the control unit

9.2.1 Connection socket 1

9.2.1.1 Release input

Using the Release input, it is possible to start or stop the dosing pump externally.

nPotential-free contact nConnection M12x1 cable with plug connector, A-coded nAssignment of pin 3, 4

Pin M12x1

(A-coded)

1 - - - Brown BN

2 - - - White WH

4 External On/Off Black BK

Assignments Connection Cable colour*

Ground (GND)

Blue BU

Removing the conductive rubber band

Fig. 30: Conductive rubber band in connection socket 1

Remove the conductive rubber band before inserting the cable in the connection socket.

After the cable has been removed, the conductive rubber band must be reinserted in the connection socket. Insert it between pins 1, 2 and 3, 4 as shown in Abb. 30.

9.2.2 Connection socket 2

9.2.2.1 Pulse input

The pulse input makes it possible to control the delivery capacity by means of pulses. The system regulates the delivery capacity by means of the dosing pump's stroke frequency and number of strokes in dependence on the number of pulses and the pulse spacing.

nProvided potential-free contact nfor potential-free NO contact, e.g. a contact-type water meter nPulse length min. 4 ms nConnection M12x1 cable with plug connector, A-coded nAssignment of pin 1, 3

For information on setting the External operating mode, see chapter

11.2.2 „Externer Betrieb“ auf Seite 35.

Pin M12x1

(A-coded)

2 - White WH

3 Ground (GND) Blue BU

4 - - - Black BK

Table 22: Connection socket 2

* Applies to cable colours of cables from Lutz-Jesco GmbH. No liability is accepted for cables from other manufacturers.

Assignments Connection Cable colour*

Pulses

Brown BN

Table 21: Connection socket 1

* Applies to cable colours of cables from Lutz-Jesco GmbH. No liability is accepted for cables from other manufacturers.

For setting the External On/Off function, see chapter 11.3 „Extern An / Aus über Freigabeeingang“ auf Seite 37.

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Electrical installation

Description of connection sockets

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

9.2.3 Connection socket 3

9.2.3.1 Level input

Connection for level monitoring of a dosing tank (e.g. a suction line with a ﬂoat switch).

nAlert and main alarm nPotential-free contact nNO contact nConnection M12x1 cable with plug connector, A-coded nAssignment of pin 1, 2, 3

For more details on installing the level monitoring system, see on page

25.

A matching connection cable with A-coded plug connector is integrated in the suction lines / level monitoring systems of Lutz-Jesco GmbH. An adapter is required if using older suction lines with a 3.5 mm jack plug. You can ﬁnd this adapter and additional cables in the Lutz-Jesco GmbH price list.

Operating Instructions

Pin M12x1

Assignments Connection Cable colour*

(A-coded)

2 Main alarm White WH

3 Ground (GND) Blue BU

pre-alarm

Brown BN

4 - - - Black BK

Table 23: Connection socket 3

* Applies to cable colours of cables from Lutz-Jesco GmbH. No liability is accepted for cables from other manufacturers.

Removing the conductive rubber band

Fig. 31: Conductive rubber band in connection socket 3

Remove the conductive rubber band before inserting the cable in the connection socket.

After the cable has been removed, the conductive rubber band must be reinserted in the connection socket. Insert it between pins 1, 2 and 3, 4 as shown in Abb. 31.

Electrical installation

Description of connection sockets

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

10 Control

Operating Instructions

10.1 Operator controls of the control unit

Fig. 32: Operator controls of the control unit

No. Explanation

Graphic display

Int/Ext key

- key

10.2 Explanation of the menu icons

10.2.1 Dosing status display

Symbol Meaning

Diaphragms stationary (no dosing stroke)

Diaphragms in stroke phase (dosing stroke)

Table 25: Explanation of the menu symbols – Dosing status display

10.2.2 Level monitoring

Symbol Meaning

Dosing tank full

Dosing tank at minimum (alert)

Dosing tank empty (main alarm)

Table 26: Explanation of the menu symbols – Level monitoring

10.2.3 Operating modes

Symbol Meaning

+ key

Start/Stop key

Table 24: Operator controls of the control unit

You operate the dosing pump MEMDOS SMART LD using the four keys below the display. The system shows the respective functions of the keys at the bottom of the display.

The + and - selection keys as well as the ≠ and Ø keys have a repeat function, i.e. if you keep them pressed down, the system automatically repeats the key function.

The display brightness reduces 45 seconds after your last input.

The dosing pump does not have an ON/OFF switch. After being disconnected from the power supply, the dosing pump starts in the operating mode and conﬁguration that you selected last.

Internal (manual operation)

External (operation via pulse signals)

Table 27: Explanation of the menu symbols – Operating modes

10.2.4 Release input

Symbol Meaning

Contact closed (dosing pump starts)

Contact open (dosing pump stops)

Table 28: Explanation of the menu symbols – Release input

10.3 Password protection

Symbol Meaning

Password protection active

Table 29: Explanation of the menu symbols - password protection

Password protection inactive

BA-10102-02-V02

Operator controls of the control unit

Control

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD



Operating Instructions

10.3.1 Activating password protection

If password protection is activated, the dosing pump is protected against unauthorized access. You can only create settings after you enter the correct password.

WARNING

Caustic burns or other burns through dosing media!

If the password protection is activated, operation of the dosing pump is blocked. The only way to stop a dosing pump without entry of the password is via the power supply. In unfavourable cases, if the password protection has been inadvertently activated or the user has forgotten the password, the dosing pump cannot be stopped in time. This can result in injury.

ðInstall an emergency stop switch or integrate the dosing pump into

the plant safety concept.

You can set any password you like from 0000 to 9999.

1. Press - and + simultaneously.

4The dosing pump displays the password protection menu.

1 1 1 1

OK - +



10.3.1.1 Entering the password

Once you press any key, you must enter the password. If you enter the code correctly, you have 120 seconds in which to operate the dosing pump. The password must be re-entered after the end of the 120 seconds, even if this runs out during entry.

1 1 1 1

OK - +

Fig. 35: Entering the password

1. Use the+ and - keys to set a value from 0 to 9 for the ﬁrst digit of the

code and then press

2. Proceed as described under point 1 for the other digits.

3. After entering all the digits, press OK.



4If your input is correct, the dosing pump displays the start screen.

If you have forgotten the code, please contact Lutz-Jesco GmbH.

10.3.1.2 Deactivating the password protection

1. Press - and + simultaneously.

2. Press

3. Press -.

4. Press OK.

until is selected.

Fig. 33: Activating the password protection

2. Use the+ and - keys to set a value from 0 to 9 for the ﬁrst digit of the

code and then press

3. Proceed as described under point 2 for the other digits.

4. Choose the last point

5. Press OK.

and press +.

4The dosing pump displays the corresponding symbol:

Fig. 34: Start screen with activated password protection

üPassword protection activated.

üPassword protection deactivated.

Control

Password protection

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

11 Operation

Operating Instructions

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

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.

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!

Changing dosing media can lead to unpredictable reactions.

ðThoroughly clean the dosing pump and appropriate sections of the

plant avoid chemical reactions.

CAUTION

Danger of automatic start up!

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

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 qualiﬁcation of personnel!

Dosing pumps and their accessories may only be installed, operated and maintained by personnel with sufﬁcient qualiﬁcations. Insufﬁcient qualiﬁcation will increase 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.

Precondition for action:

üThe dosing pump has been assembled and installed in accordance

with chapter 7 „Dosierpumpe montieren“ auf Seite 16, chapter 8 „Hydraulisch installieren“ auf Seite 17 and chapter 9 „Elektrisch installieren“ auf Seite 28.

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 chapter 12.2 „Dosierkopfschrauben nachziehen“ auf Seite

39).

üAll the hydraulic sections have been inspected to ensure they are

adequately leak-proof and that the through ﬂow direction is correct.

üPersonnel have read all the operating instructions and understood

them completely.

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.

Perform the following working steps:

1. Open the shut-off valves on the suction and discharge sides if

present.

2. Plug in the dosing pump's mains plug to the power supply.

BA-10102-02-V02

Commissioning the dosing pump

Operation

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

3. Vent the dosing pump (see chapter 11.1.1 „Venting the dosing

pump“ on page 34).

4. Select an operating mode and start the dosing pump in accordance

with the instructions in the chapter 11.2 „Operating modes“ on page

34.

4The dosing pump primes. If it does not prime enough, use a priming

aid (see chapter 8.7.6 „Priming aid“ on page 25).

At initial commissioning, it is advisable to prime the pump without backpressure. For this purpose, we recommend installing a relief valve on the discharge side of the dosing pump.

üThe dosing pump is commissioned.

11.1.1 Venting the dosing pump

11.2 Operating modes

The dosing pump MEMDOS SMART LD offers the following operating modes:

nInternal - Manual setting of the delivery capacity, nExternal - Controlling the stroke frequency and number of strokes in

dependence on the number of pulses and the pulse spacing.

11.2.1 Internal operation

CAUTION

Danger of automatic start up!

If the dosing pump is in internal operation with a speciﬁed stroke frequency, it retains the stroke frequency even after you disconnect it from the mains and then reconnect it. This means that dosing medium can escape. Depending on the type and hazardousness 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.

Fig. 36: Dosing head venting facility with vent screw

Precondition for action:

üThe dosing head venting facility connected has been connected in

accordance with the chapter 8.6 „Dosierkopf-Entlüftung anschließen“ auf Seite 20.

Perform the following working steps:

1. Select the Internal.operating mode.

2. Press Stop.

3. Keep + depressed until 100% delivery capacity is achieved.

4. Open the vent screw by one complete turn (looking onto the dosing

head, anti-clockwise).

5. Press Start.

4The dosing pump starts delivery at the highest stroke frequency.

6. Press Stop, as soon as there is a continuous throughﬂow from the

dosing head venting facility with no air bubbles.

4The dosing pump stops delivery.

7. Close the vent screw.

üThe dosing pump is vented.

If you are using effervescent media, allow them to ﬂow out continuously. Open the vent screw such that about one drop per 1 – 3 strokes escapes.

11.2.1.1 Selecting the operating mode

1. Press the Int key to select the operating mode.

4The dosing pump displays the start screen of Internal operating

mode with the symbol

Ext Start - +

Fig. 37: Start display internal operation

11.2.1.2 Starting the dosing pump

1. Use the + and - keys to set the desired stroke frequency. Adjustment

range: 0 – 100%

Pressing the + and - keys increases/decreases the stroke frequency by 1%. If you keep the key depressed, the stroke frequency increases/decreases increasingly in intervals of 2, 5 and 10.

2. Press Start.

üDosing pump has started.

11.2.1.3 Stopping the dosing pump

èPress Stop.

4The system displays the "Stop" signal and Stop changes to

Start.

üDosing pump has stopped.

Operation

Operating modes

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

11.2.2 External operation

The stroke frequency and consequently the delivery capacity of the dosing pump MEMDOS SMART LD in the External operating mode is determined by the quantity and interval of the incoming pulses in connection with the set transmission factor.

11.2.2.1 Selecting the operating mode

èPress Ext to start the device.

4The dosing pump displays the start screen of the External

operating mode with the symbol

100%

Int Start - +

Fig. 38: Start display external operation

11.2.2.2 Setting the transmission and reduction

The transmission and reduction factors can be set in 1% intervals of 1% to 1000%. A set value of 100% means that the dosing pump executes one dosing stroke per incoming pulse signal. For values above 100%, the dosing pump executes more dosing strokes per pulse signal accordingly.

For values below 100%, the dosing pump executes less than one dosing stroke per pulse signal, meaning that several pulse signals are required before a dosing stroke is executed.

The number of pulse signals required for a dosing stroke is displayed on the dosing pump display for values below 100%.

50% (2)

Int Start - +

Fig. 39: Number of pulse signals required (here: 2)

Examples for transmission / reduction

In cases of sequences of sequential pulses, it must be noted that the number of dosing strokes corresponding to the pulses does not always follow the pulses immediately in certain settings. This is due to the fact that only entire dosing strokes are executed, e.g. not half or quarter dosing strokes. Depending on the transmission or reduction factor and the number of pulses, however, there is a possibility of uneven results with "pending" pulse signals. In theses cases, the required number of dosing strokes is only achieved after a number of pulse cycles.

Examples:

The dosing pump receives pulses with a reduction factor of 30%. For the ﬁrst stroke, it requires 4 pulses in this setting (4x30% = 120%), as 3 pulses (3 x 30% = 90%) are insufﬁcient for one dosing stroke (= 100%). However, the second dosing stroke is executed after just 3 more pulses, as the stroke buffer of the dosing pump still has 20% pending from the ﬁrst 4 pulses (120% - 100% = 20%) and this is added to the 3 pulses (90% + 20% = 110%). The third dosing stroke also only requires 3 additional pulses (90% + 10% = 100%). A further 4 pulses are then required for the fourth dosing stroke.

If pulses are transferred to the dosing pump with a transmission factor of 125%, a dosing stroke is executed for each of the ﬁrst 3 pulses. With the

pulse, it executes 2 dosing strokes (3x 25% pending from the ﬁrst 3

pulses + 125% = 200%).

The dosing pump has a dynamic stroke buffer which includes the interval between the pulses in the calculation and adjusts the distribution of the dosing strokes accordingly.

11.2.2.3 Calculating the transmission factor

The dosing pump MEMDOS SMART LD has a deﬁned stroke volume per dosing stroke. If a certain dosing quantity is required per pulse, the corresponding transmission factor can be calculated for the external operating mode.

You can ﬁnd a simple means of performing the necessary calculations on the Lutz-Jesco GmbH homepage. To do so, click on the following link or enter it in your browser:

http://www.lutz-jesco.com/online-helfer-memdos-smart-ld

11.2.2.4 Starting the dosing pump

Number of pulses Setting Dosing strokes

Precondition for action:

üThe dosing pump has been connected in accordance with the

4 25% 1

2 50% 1

1 100% 1

2 100% 2

4 125% 5

1 1000% 10

Table 30: Examples for transmission / reduction of pulse signals

chapter 9.2.2 „Connection socket 2“ on page 29.

1. Press Start.

2. Supply pulses to the pulse input of the dosing pump.

üDosing pump has started.

11.2.2.5 Stopping the dosing pump

èStop the incoming pulses or press Stop.

üDosing pump has stopped.

BA-10102-02-V02

Operation

Operating modes

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

11.2.2.6 Operation with contact-type water meter

The dosing pump MEMDOS SMART LD is prepared for operation with a contact-type water meter. The contact sequence of the water meter and the size of the dosing pump must be matched to each other (calibrated).

You can ﬁnd a simple means of performing the necessary calculations on the Lutz-Jesco GmbH homepage. To do so, click on the following link or enter it in your browser:

http://www.lutz-jesco.com/online-helfer-memdos-smart-ld

Preselection of the dosing pump size

You can use the following diagram to determine the necessary size of the dosing pump depending on the intended dosing quantity and the existing or selected pulse sequence of the contact-type water meter. Comparison with the dosing pump's technical data with regard to the operating pressure is also necessary (see chapter 5 „Technische Daten“ auf Seite

12).

Operating Instructions

5 4

ml/stroke of dosing pump

Dosing quantity 10000 ml/m

0.7

0.5

0.4

0.3

0.2

0.1

Fig. 40: Preselection of the dosing pump

Dosing quantity 1000 ml/m

Dosing quantity 100 ml/m

Dosing quantity 10 ml/m

l/pulse (water meter)

MEMDOS SMART LD 20

MEMDOS SMART LD 15

MEMDOS SMART LD 10

MEMDOS SMART LD 5

10070503020107543210.70.50.30.20.1

Operation

Operating modes

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

11.3 External On / Off via Release input

Regardless of the selected operating mode, you can start or stop the dosing pump MEMDOS SMART LD by means of the closed switching contact on the Release input.

100%

Int Start - +

Fig. 41: Start screen of external operation with symbol for closed contact in centre

For the signiﬁcance of the menu symbols, see chapter 10.2 „Erläuterung der Menüsymbole“ auf Seite 31.

11.3.1 Starting the dosing pump

Close the switching contact on the Release input.

è

üDosing pump has started.

11.3.2 Stopping the dosing pump

Open the switching contact on the Release input.

è

üDosing pump has stopped.

11.4 Decommissioning the dosing pump

Perform the following working steps:

1. Stop the dosing pump in accordance with the selected operating

mode.

2. Unplug the dosing pump's mains plug from the power supply.

3. Disconnect all electrical connections.

4. Depressurize all the hydraulic parts in the system.

5. Unplug all the hydraulic connections on the dosing pump.

6. Empty the dosing head.

7. Remove any residual dosing medium from the dosing head by

ﬂushing the system with a washing agent. Ensure that the washing agent is compatible with the dosing medium.

11.6 Storage

Storing the dosing pump correctly extends its service life. You should avoid negative inﬂuences such as extreme temperatures, high humidity, dust, chemicals, etc.

Ensure ideal storage conditions where possible:

nthe storage place must be cold, dry, dust-free and generously

ventilated,

nTemperatures between + 2°C and + 40°C (for PP and PVDF dosing

heads, between + 2°C and + 60°C),

nRelative air humidity must not exceed 90%.

11.7 Transportation

Perform the following working steps:

nThe unit should be thoroughly cleaned. Any dangerous dosing media

must be additionally neutralised and decontaminated.

nAll accessories should be dismantled. nAll openings should be closed, so that no foreign objects can get into

the system.

nThe dosing pump must be suitably packed, preferably in the original

packing, for transportation.

If the device is sent back to the manufacturer, please follow chapters 17 „Unbedenklichkeitserklärung“ auf Seite 46 and 18 „Gewährleistungsantrag“ auf Seite 48.

11.8 Disposal of old equipment

nThe waste unit must be thoroughly cleaned. Any dangerous dosing

media must be additionally neutralised and decontaminated.

nAny residual dosing media must be removed in a professional manner. nThe dosing pump must be disposed of in accordance with applicable

local laws and regulations. The device does not belong to household waste!

nAs the disposal regulations may differ from country to country in the

European Union, please consult your supplier if necessary. In Germany, the manufacturer must provide free-of-charge disposal provided the unit has been sent in a safe manner.

üDosing pump is decommissioned.

11.5 Shutting down in an emergency

nIn an emergency, you must immediately disconnect the dosing pump

from the mains supply or activate the Emergency Stop switch installed in the system.

nDepending on the type of incident, you must depressurized the

hydraulic connections or locked to prevent dosing medium from escaping.

nYou must follow the safety data sheet of the dosing medium.

BA-10102-02-V02

External On / Off via Release input

Operation

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

12 Maintenance

Dosing pumps by Lutz-Jesco are manufactured to the highest quality standards and have a long service life. Nevertheless, some of their parts are subject to wear due to operation (e.g. diaphragms, valve seats, valve balls). This means that regular visual inspections are necessary to ensure a long operating life. Regular maintenance will protect the dosing pump from operation interruptions.

DANGER!

Mortal danger from electric shock!

Live parts can inﬂict fatal injuries.

ðBefore carrying out any maintenance work, always disconnect the

dosing pump from the power supply.

ðSecure the dosing pump from accidental power-up.

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 medium (e.g. water) which does not

pose any risk.

ðRelease pressure in hydraulic parts. ðNever look into open ends of plugged pipelines and valves.

Operating Instructions

CAUTION

Danger of personal injury and material damage!

The dosing pump can generate a pressure that is many times the rated one. The dosing medium can escape in the case of material failure or wear on the dosing head, the connection pipe or the seals that are used.

ðCarry out maintenance work at the recommended intervals.

CAUTION

Increased risk of accidents due to insufﬁcient qualiﬁcation of personnel!

Dosing pumps and their accessories may only be installed, operated and maintained by personnel with sufﬁcient qualiﬁcations. Insufﬁcient qualiﬁcation will increase 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.

12.1 Maintenance intervals

This table gives you an overview of maintenance work and the intervals at which you must carry it out. The next few sections contain instructions for carrying out this work.

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

correctly and are leak-proof.

Maintenance

Maintenance intervals

Maintenance work to be carried

out

Check that piping is seated ﬁrmly Regularly

Check that suction and discharge valves are seated ﬁrmly

Clean suction and discharge valves Regularly

Check that electrical connections are not damaged

Tighten up dosing head bolts Regularly

Check diaphragm for leakage due to rupture

Table 31: Maintenance information and maintenance intervals

BA-10102-02-V02

Frequency

Regularly

Before initial commissioning After each diaphragm change

Regularly (as long as no leak monitoring system is installed)

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

Maintenance work to be carried

out

Check that the installed accessories are functioning correctly

Check the dosing pump for unusual noises during operation, unusual temperatures or smells

Replace parts that are subject to wear (diaphragms, valves, seals, etc.)

Rinse out and clean the dosing pump

Table 31: Maintenance information and maintenance intervals

Regularly

When unacceptable levels of wear are detected

Before changing diaphragms Before taking out of service for a

long period of time After feeding aggressive, sticky,

crystallising or contaminated liquids

Frequency

12.2 Tighten up dosing head bolts

èTighten the dosing head bolts in diagonally opposite sequence with a

torque wrench.

The necessary torque is 180 Ncm.

12.3 Change the diaphragm

Perform the following working steps:

1. Screw out the four screws e on the dosing head using a suitable

tool (SW 3 Allen key) and take off the dosing head d.

2. Use pliers to bend the edge of the diaphragm c slightly upwards

and screw it out counter-clockwise.

12.3.2 Install a new diaphragm

Precondition for action:

üYou have thoroughly cleaned the diaphragm rod b and the

diaphragm ﬂange a so that the new diaphragm is not affected by dosing medium residues.

üYou have slightly greased the diaphragm thread c (e.g. using

Molykote Longterm W2).

1. Screw the diaphragm manually c in the clockwise direction until it

safely contacts into the diaphragm rod.

2. Bring the dosing head into position and insert the screws. First

tighten the screws ﬁnger-tight. After this, tighten the bolts on the diagonal, e.g. top left – bottom right – top right – bottom left.

NOTICE

Damage to the dosing head/diaphragm leaks

If you tighten the screws too much, this can lead to the dosing head being damaged. However, not tightening the screws enough leads to the diaphragm being leaky and correct functioning being affected.

ðTighten the screws to a torque of 180 Ncm.

Fig. 42: Exploded view of the diaphragm and dosing head

12.3.1 Remove the old diaphragm

Precondition for action:

üYou have disconnected the dosing pump from the mains supply. üYou have depressurised the hydraulic sections of the plant. üYou have rinsed the dosing pump using a safe medium (e.g. water).

üDiaphragm change ﬁnished.

It may be necessary to gauge the delivery capacity after replacing the diaphragm or other dosing pump spare parts.

12.4 Clean suction and discharge valves

Contaminated valves affect the dosing preceision and this means that you should clean the valves on a regular basis.

With dosing heads made of plastic, when replacing a valve you must replace the complete dosing head (see chapter 14 „Ersatzteile“ auf Seite

43).

BA-10102-02-V02

Tighten up dosing head bolts

Maintenance

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

13 Troubleshooting

See below for information about how to rectify faults on the device or the system. If you cannot eliminate the fault, please consult with the manufacturer on further measures or return the dosing pump for repair.

13.1 Type of fault

Possible cause Remedy

System backpressure too high (measured at discharge connection of dosing pump)

èClean blocked injection nozzle.

èInstall pulsation dampeners to

reduce pressure peaks if pipes are too long.

Operating Instructions

13.1.1 Dosing pump not delivering or output too low

Possible cause Remedy

Wrong type of dosing pump selected

Valve leaking or blocked

èCheck the dosing pump's

technical data and if necessary select a type with a higher delivery capacity.

èClean the valve and vent the

dosing pump.

èTighten the screw connections.

Valve installed incorrectly

Valve damaged (e.g. valve balls)

Suction line is leaking

Suction line is blocked (e.g. screen in foot valve)

èReassemble the valve. Ensure

that the valve balls are located above the valve seats.

èRemove the damaged parts or

install a new valve.

èSeal the leak locations or replace

the parts.

èClean the suction line.

èCheck function of safety valves.

Table 32: Type of fault: Dosing pump not delivering or output too low

13.1.2 Dosing pump does not prime

Possible cause Remedy

Valve leaking or blocked

èClean the valve and vent the

dosing pump.

èTighten the screw connections.

Valve installed incorrectly

Valve damaged (e.g. valve balls)

Suction line is leaking

Suction line is blocked (e.g. screen in foot valve)

èReassemble the valve. Ensure

that the valve balls are located above the valve seats.

èRemove the damaged parts or

install a new valve.

èSeal the leak locations or replace

the parts.

èClean the suction line.

Shut-off valves closed

Suction head too high

èOpen the shut-off valves. Inspect

the dosing pump for possible damage.

èSet the dosing pump to feed or

reduce the suction head.

èInstall a priming aid.

Viscosity too high

èPossibly reduce the concentration

of the dosing medium or increase the temperature.

èInstall spring-loaded valves.

èIncrease the pipe diameter.

Current supply interrupted

The dosing pump's electrical data does not match that of the mains supply

Table 32: Type of fault: Dosing pump not delivering or output too low

èReconnect the current supply

èCheck the electrical installation.

Shut-off valves closed

Suction head too high

èOpen the shut-off valves. Inspect

the dosing pump for possible damage.

èSet the dosing pump to feed or

reduce the suction head.

èInstall a priming aid.

Viscosity too high

èPossibly reduce the concentration

of the dosing medium or increase the temperature.

èInstall spring-loaded valves.

èIncrease the pipe diameter.

Current supply interrupted

Table 33: Type of fault: Dosing pump does not prime

èReconnect the current supply

Troubleshooting

Type of fault

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

Possible cause Remedy

Dry the valves

èDampen the dosing head and the

valves

èVent the dosing head.

Air in the suction line with simultaneous pressure on the discharge valve

Table 33: Type of fault: Dosing pump does not prime

èVent the dosing head or the lines.

13.1.3 Delivery rate varies

Possible cause Remedy

Valve leaking or blocked

èClean the valve and vent the

dosing pump.

èTighten the screw connections.

Valve damaged (e.g. valve balls)

Suction line is leaking

èRemove the damaged parts or

install a new valve.

èSeal the leak locations or replace

the parts.

13.1.4 No stroke movement observed

Possible cause Remedy

Diaphragm return spring broken.

Current supply interrupted

The dosing pump's electrical data does not match that of the mains supply

Pressure peaks due to acceleration with long suction lines

System backpressure too high (measured at discharge connection of dosing pump)

èContact the manufacturer.

èReconnect the current supply

èCheck the electrical installation.

èInstall a suction pressure

regulator.

èClean blocked injection nozzle.

èInstall pulsation dampeners to

reduce pressure peaks if pipes are too long.

èCheck function of safety valves.

Table 35: Type of fault: No stroke movement observed

Suction line is blocked (e.g. screen in foot valve)

Viscosity too high

The dosing pump's electrical data does not match that of the mains supply

Suction side pressure too high (pump siphoning)

Pressure peaks due to acceleration with long suction lines

Imprecise dosing due to changeable positive and negative suction heads.

System backpressure too high (measured at discharge connection of dosing pump)

Table 34: Type of fault: Delivery rate varies

èClean the suction line.

èPossibly reduce the concentration

of the dosing medium or increase the temperature.

èInstall spring-loaded valves.

èIncrease the pipe diameter.

èCheck the electrical installation.

èInstall a back-pressure valve in

the pressure line.

èInstall a suction pressure

regulator.

èInstall a suction pressure

regulator.

èClean blocked injection nozzle.

èInstall pulsation dampeners to

reduce pressure peaks if pipes are too long.

èCheck function of safety valves.

13.1.5 Dosing pump delivery rate too high

Possible cause Remedy

Suction side pressure too high (pump siphoning)

Pressure peaks due to acceleration with long suction lines

Table 36: Type of fault: Dosing pump delivery rate too high

èInstall a back-pressure valve in

the pressure line.

èInstall a suction pressure

regulator.

13.1.6 Diaphragm is torn or tears too often

Possible cause Remedy

Shut-off valves closed

Pressure peaks due to acceleration with long suction lines

The materials are not suitable for the dosing medium being used

Diaphragm not screwed up to the end stop on the diaphragm rod

Table 37: Type of fault: Diaphragm is torn or tears too often

èOpen the shut-off valves. Inspect

the dosing pump for possible damage.

èInstall a suction pressure

regulator.

èCheck the resistance of the

materials.

èScrew a new diaphragm up to the

end stop.

BA-10102-02-V02

Troubleshooting

Type of fault

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Possible cause Remedy

Operating Instructions

System backpressure too high (measured at discharge connection of dosing pump)

èClean blocked injection nozzle.

èInstall pulsation dampeners to

reduce pressure peaks if pipes are too long.

èCheck function of safety valves.

Media sediment in dosing head

Table 37: Type of fault: Diaphragm is torn or tears too often

èClean the dosing head.

Troubleshooting

Type of fault

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

14 Spare parts

Operating Instructions

Fig. 43: Spare parts set for MEMDOS SMART LD 5, 10 (plastic dosing head)

14.1 Diaphragm spare parts kits

Diaphragm spare parts set containing:

n1 diaphragm a, n1 set of dosing head screws c, n1 set washers d (only MEMDOS SMART LD 15, 20).

Diaphragm kit Type

LD 2 39122

LD 5, LD 10 39123

LD 15, LD 20 40607

Part No.

14.2 Dosing head spare parts kits including valves

Spare parts set: dosing head including screws consisting of:

nDosing head b, nValves, n1 set of dosing head screws c, n1 set washers d (only MEMDOS SMART LD 15, 20).

PVC Type

Part No.

Fig. 44: Spare parts set for MEMDOS SMART LD 5, 10 (stainless steel dosing head (1.4571))

Fig. 45: Spare parts set for MEMDOS SMART LD 15, 20 (plastic or stainless steel dosing head (1.4571))

Required sets for a complete service:

n1 diaphragm spare parts kit, n1 dosing head spare parts set including valves.

Glass/PVDF/FPM (ball/seat/seals)

PP Type

Glass/PVDF/FPM (ball/seat/seals)

PVDF Type

PTFE/PVDF/FPM (ball/seat/seals)

Stainless steel

(1.4571)

Stainless steel / stainless steel / FPM

(ball/seat/seals)

LD 2 41192

LD 5, LD 10 38983

LD 15, LD 20 40571

Part No.

LD 2 41193

LD 5, LD 10 38980

LD 15, LD 20 40572

Part No.

LD 2 41194

LD 5, LD 10 38986

LD 15, LD 20 40573

Type

LD 2 41195

LD 5, LD 10 39944

Part No.

BA-10102-02-V02

LD 15, LD 20 40574

Spare parts

Diaphragm spare parts kits

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

0,0

5,0

10,0

15,0

20,0

25,0

15 Delivery characteristic curves

This Chapter is intended to give you an idea of the delivery capacity that the dosing pump can achieve at speciﬁc back pressures. These delivery capacities were determined on the manufacturer's test stands. They apply at 20 °C (68 °F) for water, at 100% stroke frequency. The delivery capacity depends on the medium (density and viscosity) and temperature. Since these conditions vary at every installation location, you should calibrate the dosing pump.

LD 20

LD 15

Delivery capacity [l/h]

LD 10

LD 5

Operating Instructions

Fig. 46: Delivery characteristic curves MEMDOS SMART LD 2 – 20

Pressure [bar]

Delivery characteristic curves

Dosing head spare parts kits including valves

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

16 EC declaration of conformity

(DE) EG-Konformitätserklärung

Hiermit erklären wir, dass das nachfolgend bezeichnete Gerät aufgrund seiner Konzipierung und Bauart sowie in der von uns in Verkehr gebrachten Ausführung den einschlägigen grundlegenden Sicherheits- und Gesundheitsanforderungen der aufgeführten EG-Richtlinien entspricht. Bei einer nicht mit uns abgestimmten Änderung am Gerät verliert diese Erklärung ihre Gültigkeit.

(EN) EC Declaration of Conformity

We hereby certify that the device described in the following complies with the relevant fundamental safety and sanitary requirements and the listed EC regulations due to the concept and design of the version sold by us. If the device is modiﬁed without our consent, this declaration loses its validity.

(FR) Déclaration de conformité CE

Nous déclarons sous notre propre responsabilité que le produit ci-dessous mentionné répond aux exigences essentielles de sécurité et de santé des directives CE énumérées aussi bien sur le plan de sa conception et de son type de construction que du modèle que nous avons mis en circulation. Cette déclaration perdra sa validité en cas d’une modiﬁcation effectuée sur le produit sans notre accord explicite.

(ES) Declaración de conformidad CE

Por la presente declaramos que, dados la concepción y los aspectos constructivos del modelo puesto por nosotros en circulación, el aparato mencionado a continuación cumple con los requisitos sanitarios y de seguridad vigentes de las directivas de la U.E. citadas a continuación. Esta declaración será invalidad por cambios en el aparato realizados sin nuestro consentimiento.

(NL) EU-overeenstemmingsverklaring

Ondergetekende Lutz-Jesco GmbH, bevestigt, dat het volgende genoemde apparaat in de door ons in de handel gebrachte uitvoering voldoet aan de eis van, en in overeenstemming is met de EU-richtlijnen, de EU-veiligheidsstandaard en de voor het product speciﬁeke standaard. Bij een niet met ons afgestemde verandering aan het apparaat verliest deze verklaring haar geldigheid.

(PT) Declaração de conformidade CE

Declaramos pelo presente documento que o equipamento a seguir descrito, devido à sua concepção e ao tipo de construção daí resultante, bem como a versão por nós lançada no mercado, cumpre as exigências básicas aplicáveis de segurança e de saúde das directivas CE indicadas. A presente declaração perde a sua validade em caso de alteração ao equipamento não autorizada por nós.

Operating Instructions

Bezeichnung des Gerätes:

Description of the unit:

Désignation du matériel:

Descripción de la mercancía:

Omschrijving van het apparaat:

Designação do aparelho:

Type:

EG-Richtlinien: EC directives:

Harmonized standards:

Dokumentationsbevollmächtigter: Authorized person for documentation:

Schrittmotor-Membrandosierpumpe Stepper Motor-driven Diaphragm Dosing Pump Pompe doseuse à membrane entraînée par moteur pas à pas Bomba dosiﬁcadora de membrana con motor paso a paso

MEMDOS SMART LD 2 – 20Typ:

2006/42/EG, 2004/108/EG

Die Schutzziele der Niederspannungsrichtlinie 2006/95/EG wurden gemäß Anhang I, Nr. 1.5.1 der Maschinenrichtlinie 2006/42/EG eingehalten.

The protective aims of the Low Voltage Directive 2006/95/EC were adhered to in accordance with Annex I, No. 1.5.1 of the Machinery Directive 2006/42/EC.

EN ISO 12100, EN 809, EN 61000-6-2, EN 61000-6-3Harmonisierte Normen:

Lutz-Jesco GmbH

Heinz Lutz Geschäftsführer / Chief Executive Ofﬁcer Lutz-Jesco GmbH Wedemark, 01.05.2014

Lutz-Jesco GmbH Am Bostelberge 19 30900 Wedemark Germany

BA-10102-02-V02

EC declaration of conformity

Dosing head spare parts kits including valves

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Operating Instructions

17 Declaration of no objection

Please copy the declaration, stick it to the outside of the packaging and return it with the device.

Declaration of no objection

Please fill out a separate form for each appliance!

We forward the following device for repairs:

Device and device type: ................................................................ Part-no.:...................................................................................

Order No.:..................................................................................... Date of delivery: .......................................................................

Reason for repair: ......................................................................................................................................................................................

..................................................................................................................................................................................................................

Dosing medium

Description: .................................................................................. Irritating:

Properties: .................................................................................... Corrosive:

We hereby certify, that the product has been cleaned thoroughly inside and outside before returning, that it is free from hazardous material (i.e. chemical, biological, toxic, flammable, and radioactive material) and that the lubricant has been drained.

If the manufacturer finds it necessary to carry out further cleaning work, we accept the charge will be made to us.

We assure that the aforementioned information is correct and complete and that the unit is dispatched according to the legal requirements.

Company / address:...................................................................... Phone:......................................................................................

..................................................................................................... Fax:..........................................................................................

..................................................................................................... Email:.......................................................................................

Customer No.:............................................................................... Contact person:........................................................................

Yes No

Date, Signature:............................................................................

Declaration of no objection

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Notes

Operating Instructions

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Warranty Application

Please copy and send it back with the unit!

If the device breaks down within the period of warranty, please return it in a cleaned condition with the complete warranty application, filled out.

Sender

Company: ............................................................................................................... Phone: .................................. Date: ..........................

Address: ....................................................................................................................................................................................................

Contact person: .........................................................................................................................................................................................

Manufacturer order no.: .......................................................................................... Date of delivery: .........................................................

Device type: ............................................................................................................ Serial number: ...........................................................

Nominal capacity / nominal pressure: .........................................................................................................................................................

Description of fault:.....................................................................................................................................................................................

Service conditions of the device

Point of use / system designation:...............................................................................................................................................................

Accessories used (suction line etc.):............................................................................................................................................................

Commissioning (date): ................................................................................................................................................................................

Duty period (approx. operating hours): ........................................................................................................................................................

Please describe the specific installation and enclose a simple drawing or picture of the chemical feed system, showing materials of construction, diameters, lengths and heights of suction and discharge lines.

Operating Instructions

18 Warranty claim

Warranty claim

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Notes

Operating Instructions

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Index

Operating Instructions

Accessories .....................................................................................21

Appropriate and Intended Use ............................................................ 7

Back-pressure valve ........................................................................23

Bonded connection ..........................................................................19

Cemented connection ......................................................................19

Clean suction and discharge valves .................................................39

Commissioning ................................................................................33

Commissioning the dosing pump .....................................................33

Connection sockets ..........................................................................29

Contact-type water meter ................................................................22

Control .............................................................................................31

Control elements .............................................................................10

Conveying characteristics ................................................................11

Declaration of no objection ..............................................................46

Decommissioning the dosing pump .................................................37

Delivery capacity data ......................................................................12

Delivery characteristic curves .......................................................... 44

Design of the system .......................................................................17

Device revision ..................................................................................7

Diaphragm

Change the diaphragm ...............................................................39

Spare parts .................................................................................43

Dimensioned drawings ....................................................................14

Dimensions ......................................................................................14

Disposal of old equipment ................................................................37

Dosing head

Alignment ...................................................................................18

Spare parts .................................................................................43

Structure ......................................................................................9

Dosing head venting facility .............................................................20

Dosing media

Permitted media temperatures ...................................................13

Prohibited dosing media ...............................................................7

EC declaration of conformity ............................................................45

Electrical data ..................................................................................13

Electrical installation ........................................................................28

Explanation of the icons ...................................................................31

External On / Off via Release input ...................................................37

External operation ............................................................................35

Foreseeable misuse ...........................................................................7

Function description ........................................................................10

General warnings ...............................................................................5

Glue-in connection ...........................................................................19

Hazards due to non-compliance with the safety instructions ..............6

Hydraulic accessories ......................................................................21

Hydraulic connections ......................................................................18

Hydraulic installations ......................................................................17

Injection nozzle ................................................................................21

Inputs of the control unit ..................................................................29

Installation .......................................................................................16

electrical ....................................................................................28

hydraulic ....................................................................................17

Installation on the wall .....................................................................16

Installing the Dosing Pump ..............................................................16

Instructions for action

Identiﬁcation .................................................................................4

Intended purpose ...............................................................................7

Internal operation .............................................................................34

Leakage drain ..................................................................................20

Level input

Connection .................................................................................29

Level monitoring ..............................................................................25

Maintenance ....................................................................................38

Maintenance intervals ...................................................................... 38

Notes to the Reader ...........................................................................4

Operating conditions and limits ........................................................12

Operating modes .............................................................................34

Explanation of the icons ..............................................................31

External operation ......................................................................35

Internal operation .......................................................................34

Operation .........................................................................................33

Operation with contact-type water meter ......................................... 36

Operator controls of the control unit .................................................31

Password protection ........................................................................31

Permitted media temperatures .........................................................13

Personal protective equipment ...........................................................6

Personnel qualiﬁcation .......................................................................6

Pressure-relief valve ........................................................................22

Priming aid ......................................................................................25

Product description ............................................................................9

Product warranty ...............................................................................7

Prohibited dosing media ....................................................................7

Pulsation dampener .........................................................................24

Pulse input

Connection .................................................................................29

BA-10102-02-V02

Stepper motor-driven diaphragm dosing pump MEMDOS SMART LD

Rating plate ..................................................................................... 10

Release input

Connection .................................................................................29

Safety ................................................................................................5

Scope of delivery ............................................................................... 9

Setting the transmission and reduction ............................................35

Set up information ...........................................................................16

Shutdown ........................................................................................37

Shutting down in an emergency .......................................................37

Signal words

Explanation ...................................................................................4

Spare parts ......................................................................................43

Specialist staff ...................................................................................6

Storage ............................................................................................37

Structure of the dosing pump .............................................................9

Suction pressure regulator ...............................................................26

Suspensions ....................................................................................26

System piping ..................................................................................18

Technical speciﬁcations ...................................................................12

Temperatures

Approved ambient temperature ..................................................12

Permitted media temperatures ...................................................13

Tighten up dosing head bolts ...........................................................39

Trained persons .................................................................................6

Transportation ..................................................................................37

Troubleshooting ...............................................................................40

Operating Instructions

Venting ............................................................................................34

Venting the dosing pump .................................................................34

Wall bracket ....................................................................................16

Wall console ....................................................................................16

Wall mounting ..................................................................................16

Warnings

General warnings .........................................................................5

Identiﬁcation .................................................................................4

Warning signs

Explanation ...................................................................................4

Warranty claim ................................................................................48

Working in a safety-conscious manner ..............................................6

BA-10102-02-V02

Product Range Lutz Pumpen GmbH

P.O. Box 1462 • D-97864 Wertheim

www.lutz-pumpen.de

Product Range Lutz-Jesco GmbH

P.O. Box 100164 • D-30891 Wedemark

www.lutz-jesco.com

Barrel and Container Pumps

Flow Meters

Double Diaphragm Pumps

Centrifugal Pumps

Dosing Pumps

Chlorinators Disinfection

Chemical Centrifugal Pumps

Products for the disinfection of swimming pool water based on salt water electrolysis and domestic water technology

The Lutz-Jesco App for iPads is available from the iTunes App Store. Additional information can be found at www.lutz-jesco.com

Measuring and Control Equipment

Standard Plus

Headquarters

Lutz-Jesco GmbH

Am Bostelberge 19 30900 Wedemark Germany

Tel.: +49 5130 5802-0 Fax: +49 5130 580268

E-mail: info@lutz-jesco.com Website: www.lutz-jesco.de

Great Britiain

Lutz-Jesco (GB) Ltd.

Gateway Estate West Midlands Freeport Birmingham B26 3QD Great Britain

Tel.: +44 121 782 2662 Fax: +44 121 782 2680

E-mail: info@lutz-jesco.co.uk Website: www.lutz-jesco.co.uk

Hungary

Lutz-Jesco Üzletág

Vasvári P. u. 9. 9024 Györ Hungary

Tel.: +36 96 523046 Fax: +36 96 523047

E-mail: info@lutz-jesco.hu Website: www.lutz-jesco.hu

USA

Lutz-JESCO America Corp.

55 Bermar Park Rochester, N.Y. 14624 USA

Tel.: +1 585 426-0990 Fax: +1 585 426-4025

E-mail: mail@jescoamerica.com Website: www.lutzjescoamerica.com

Austria

Lutz-Jesco GmbH

Aredstraße 7/2 2544 Leobersdorf Austria

Tel.: +43 2256 62180 Fax: +43 2256 6218062

E-mail: info@lutz-jesco.at Website: www.lutz-jesco.at

East Asia

Lutz-Jesco East Asia Sdn Bhd

6 Jalan Saudagar U1/16 Hicom Glenmarie Industrial Park 40150 Shah Alam/ Selangor Malaysia

Tel.: +603 55692322 Fax: +603 55691322

E-mail: info@lutz-jescoasia.com Website: www.lutz-jescoasia.com

Netherlands

Lutz-Jesco Nederland B.V.

Nijverheidstraat 14 C 2984 AH Ridderkerk Netherlands

Tel.: +31 180 499460 Fax: +31 180 497516

E-mail: info@lutz-jesco.nl Website: www.lutz-jesco.nl

Middle East

Lutz-Jesco Middle East FZE

P.O. Box 9614 SAIF-Free Zone Center Sharjah UAE

Tel.: +971 6 5572205 Fax: +971 6 5572230

E-mail: info@jescome.com Website: www.jescome.com

Lutz-Jesco MEMDOS SMART LD Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1 Notes to the Reader

1.3 Explanation of the warning signs

1.1 General non-discrimination

1.2 Explanation of the signal words

2 Safety

2.1 General warnings

2.2 Hazards due to non-compliance with the safety instructions

2.3 Working in a safety-conscious manner

2.4 Personal protective equipment

3 Appropriate and Intended Use

3.1 Notes on Product warranty

3.2 Intended purpose

3.3 Device revision

3.5 Prohibited dosing media

3.4 Principles

3.6 Foreseeable misuse

4 Product description

4.1 Properties

4.2 Scope of delivery

4.3 Structure of the dosing pump

4.5 Rating plate (type label)

4.4 Function description

4.6 Conveying characteristics

5.1 Delivery capacity data

5.2 Operating conditions and limits

5.3 Electrical data

5.4 Other data

6 Dimensions

6.1 MEMDOS SMART LD 2, 5, 10

6.2 MEMDOS SMART LD 15, 20

7 Installing the Dosing Pump

7.1 Set up information

7.2 Installation examples

8 Hydraulic installations

8.1 Design of the system

8.2 System piping

8.3 Aligning the dosing head

8.4 Hydraulic connections

8.5 Connecting a leakage drain

8.6 Connecting the dosing head venting facility

8.7 Hydraulic accessories

9 Electrical installation

9.1 Principles

9.2 Description of connection sockets

10 Control

10.1 Operator controls of the control unit

10.2 Explanation of the menu icons

10.3 Password protection

11 Operation

11.1 Commissioning the dosing pump

11.2 Operating modes

11.3 External On / Off via Release input

11.4 Decommissioning the dosing pump

11.6 Storage

11.7 Transportation

11.8 Disposal of old equipment

11.5 Shutting down in an emergency

12 Maintenance

12.1 Maintenance intervals

12.2 Tighten up dosing head bolts

12.3 Change the diaphragm

12.4 Clean suction and discharge valves

13 Troubleshooting

13.1 Type of fault

14 Spare parts

14.1 Diaphragm spare parts kits

14.2 Dosing head spare parts kits including valves

15 Delivery characteristic curves

16 EC declaration of conformity

17 Declaration of no objection

18 Warranty claim

Notes

Index