HNP Mikrosysteme MZR User manual

Instruction for startup/shutdown of mzr-pumps

HNP Mikrosysteme GmbH

Bleicherufer 25

D-19053 Schwerin

Phone: 0385/52190-346

Fax: 0385/52190-333

E-mail: [email protected]

http://www.hnp-mikrosysteme.de

Last update: March 2015

Contents Instruction for startup/shutdown

Last update: May 2007 ausserbetriebnahme_mzr-pumpen_engl.doc ii

Contents

1Startup/shutdown of a mzr-pump 1

1.1 Preparing for operation 1

1.2 Startup of the micro annular gear pump 1

1.3 Flushing procedure after use 1

1.4 Shutdown of the micro annular gear pump 4

1.4.1 Conservation 6

1.4.2 Dismantling of the system 7

1.5 Problem shooting 8

1.6 Return of the micro annular gear pump to the

manufacturer 8

2Safety information for the return of already

employed micro annular gear pumps and

components 9

2.1 General information 9

2.2 Declaration of liquids in contact with the micro

annular gear pump 9

2.3 Shipment 9

3Declaration of media in contact with the micro

annular gear pump and its components 10

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

1Startup/shutdown of a mzr-pump

1.1 Preparing for operation

After the liquid supply system had been completed, please check once again

the operating conditions of the micro annular gear pump as according to the

following points:

Are the inlet and outlet tubes correctly connected?

Is the entire liquid supply system clean - that means free of particles, foreign

bodies, pollution or swarf?

Has a filter been installed on the suction side?

Has a sufficient amount of the right liquid been supplied?

The pump does not run the risk of a longer dry operation?

The entire liquid supply system has been checked for leakage?

Is it possible to stop the pump by an emergency switch if an unexpected

malfunction occurs at the startup?

1.2 Startup of the micro annular gear pump

Switch on the voltage supply. The micro annular gear pump can now be put

into operation by turning on the potentiometer knob or by sending a nominal

external voltage signal.

Start the filling in of the pump at low or middle speed (1000 - 3000 rpm).

Warning Avoid dry operation of the pump over a longer time. The pump should be

filled in before it is put to operation.

1.3 Flushing procedure after use

After each service the micro annular gear pump should be carefully flushed

with a non-corrosive, filtered and particle-free flushing liquid (see table 1 and

table 2). During flushing procedure the pump should operate at a speed of

about 3000 rpm and if possible against a low pressure (that can be obtained by

using a restrictor, a capillary or similar). The flushing liquid must be compatible

with the delivered liquid and suitable for solving the remaining liquid rests.

Depending on the application for example water, or isopropanol may be used.

If you have doubts whether a particular liquid is suitable for this function or

not, please ask the manufacturer of the liquid or HNP Mikrosysteme.

Last update: March 2015 Technical data subject to change without prior notice! 1

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

Flush the pump

Selection of flushing

liquid (FL)

Drain the pump

Right

flushing

uid

Is the

pump

resistant?

yes

Flushing cycle

End of flushing

cycle

see table 1 (Selection of the flushing liquid)

see table 2 (Resistance of the sealing material)

see table 1 (Selection of the flushing liquid)

figure 1 Diagram of the flushing procedure

Warning Liquids that remain in the pump may crystallize, coagulate or lead to corrosion

and as a consequence impair the work of the micro annular gear pump.

Warning Please make sure that the pump components and particularly O-rings and

sealing are resistant to the employed flushing liquid. (see table 2).

Warning The flushing liquid (solvent) and the recommended duration of the flushing

procedure depend on the delivered liquid (see table 2). The indicated flushing

liquids are simple recommendations and should therefore be checked by the

user as to their compatibility and suitability.

!Regulations concerning use of substances dangerous to health should be

followed!

Last update: March 2015 Technical data subject to change without prior notice! 2

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

Nature of the delivered liquid Flushing time [min] Suitable flushing liquid

1 Oils, fats, plastifierss 15-20 isopropanol, ethanol, acetone,

benzine/petroleum ether

2 Solvents (polar + nonpolar) 5-10 isopropanol, ethanol

3 Other organic liquids 10-15 isopropanol , ethanol

4 Refrigerating and cooling agents 15-20 isopropanol, ethanol

5 Neutral water/y solutions 20-25 isopropanol, ethanol

6 Basic solutions 25-30 DI-water (deionized water)

7 Organic acids 30-40 isopropanol, ethanol

8 Weak mineral acids 25-30 DI- water

9 Strong mineral acids 35-45 DI- water

10 Strong oxidizing liquids 35-45 DI- water

11 Paints, varnishes, adhesives 50-60 not specified - for further information

please contact HNP Mikrosysteme.

table 1 Selection of the flushing liquid (solvent) and the duration of the flushing procedure depending on the

delivered liquid.

Warning Please make sure that the pump components and particularly O-rings and

sealing are resistant to the employed flushing liquid (see table 2).

Shaft sealing O-ring material

Flushing liquid

PTFE,

graphite-

reinforced

UHMWPE FKM EPDM FFKM

acetone 0 0 3 0 0

benzene 0 3 1 3 0

benzyl alcohol 0 - 0 2 0

butanol 0 - 1 0 0

dimethyl sulfoxide (DMSO) 0 0 3 0 0

ethanol 0 0 0 0 0

isopropanol 0 0 0 0 0

methanol 0 0 2 0 0

methylethylketone (MEK) 0 0 3 1 0

styrene 0 - 1 3 1

toluene 0 1 2 3 0

water 0 0 0 0 0

xylene 0 1 2 3 0

benzine/petroleum ether 0 0 0 3 0

oil / fine mechanics oil 0 0 0 3 0

Legend: 0 ... good suitability 1 ... suitability 2 ... conditional suitability 3 ... labile - ... not specified

table 2 Resistance of the sealing materials depending on the flushing liquid (solvent)

Last update: March 2015 Technical data subject to change without prior notice! 3

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

1.4 Shutdown of the micro annular gear pump

In order to shut down a mzr-pump the following steps should be followed:

Flush the pump with a filtered and particle-free flushing liquid (solvent) as

described in the chapter 1.3.

After the flushing procedure decrease speed of the pump to 0 rpm

Fill the pump with a suitable conservation liquid (see chapter 1.4.1)

Remove the pump from the system (see chapter 1.4.2)

By proceeding as shown in the diagram (see figure 3) you may prepare the

pump for a longer standstill.

Last update: March 2015 Technical data subject to change without prior notice! 4

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

end

FL = flushing liquid

CL = conservation liquid

End of test/operation

Drain the pump

Pump

requires

flushing?

Flushing cycle

Is the

pump

clean?

Selection of

conservation liquid

(CL)

Delivery of

solvents

manipulated

liquid =

conservation

liquid

Flush the pump

Selection of flushing

liquid (FL)

Drain the pump

Right

flushing

uid

Is the

pump

resistant?

Selection of conservation

liquid (CL)

adequate

Is the CL

compatible

with pump

Is the CL

compatible

with the

last FL ?

Nature of

the CL

Let the gas through

the pump

Fill in CL

Desinstall the

pump

Close the liquid

ports

End of conservation

procedure

New operation after

the conservation

procedure

liquid

yes

gaseous

yes

Flushing cycle

End of flushing

cycle

End of CL

selection

see table 1

see table 2

see table 3

see table 2

figure 2 Diagram of the shutdown procedure

Last update: March 2015 Technical data subject to change without prior notice! 5

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

1.4.1 Conservation

If the micro annular gear pump operates at irregular intervals or for other

reasons should be put out of operation for a longer period, it should, after

service and flushing procedure (see chapter 1.3), be filled in with a suitable

conservation liquid.

The conservation liquid may be selected from the table 3 depending on the

duration of the standstill and the resistance of the pump to the manipulated

liquid. The indicated conservation liquids are simple recommendations and

should therefore be checked by the user as to their compatibility and suitability.

The figure 3 presents a diagram of conservation agent selection.

Remark: This diagram is repeated as a part of the figure 2 (shutdown procedure

of the micro annular gear pump).

After the cleansing procedure the pump should be filled with a suitable

conservation agent. You will find a choice of possible conservation agents in

the table 3.

Selection of conservation

liquid (CL)

adequate

Is the CL

compatible

with pump

Is the CL

compatible

with the

last FL ?

yes

End of CL

selection

see table 3 (Selection of the conservation agent)

see table 2 (Resistance of the sealing material)

figure 3 Diagram - selection of conservation liquid (CL)

Last update: March 2015 Technical data subject to change without prior notice! 6

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

Liquids

Solubility in

water

Compatibility

with the

delivered liquid

Duration of

storage

Breakaway

torque

Toxicology

Viscosity

Description

isopropanol + + o o o + solvent for organic compounds, cosmetics, essential oils

waxes, and esters, antifreezers, antiseptic agents

acetone + + o o o + solvent for a number of organic compounds, unlimited

solubility in water, dissolves natural and synthetic resins, fats,

oils and commonly used plastifiers

ethanol + + o o o + solvent for organic compounds, fats, oils and resins

DI-water + + - - + + solvent for many organic and mineral liquids

fine mechanics

oil

- - + + + + cleansing and protective action (dissolves fats, tar, rubber or

adhesive substances, protects against corrosion).

hydraulic oil - - + + + - lubricating and preserving properties (Warning: may resinate

or deteriorate with time)

nitrogen - + + + o + is not a solvent, may leave deposits after drying out

air /

compressed air

+ + + + + is not a solvent, may leave deposits after drying out

Legend: + ... good/suitable o ... satisfactory; - ... bad/inadequate

table 3 Selection of the conservation agent

In order to prevent dust particles and foreign bodies from penetrating into the

pump or the conservation agent from leaking out, please secure the liquid

input and output openings with the delivered protective plugs or screws.

Warning Water or DI-water should not be used as conservative liquids. They germinate

already after a few days and build a biofilm which can later block the pump.

1.4.2 Dismantling of the system

Put the drive out of operation by turning down speed to 0 rpm and by

switching off the voltage supply. Make sure that the procedure described in

the chapter 1.3 has been completed.

Now that the pump has been stopped you may remove it from the system.

Protect the inlet and outlet openings of the pump with adapted protective

plugs or screws.

Last update: March 2015 Technical data subject to change without prior notice! 7

1 Startup/shutdown of a mzr-pump Instruction for startup/shutdown

1.5 Problem shooting

If the pump stops operating abruptly or has difficulties with starting operation,

please undertake the following steps:

Try to liberate the micro annular gear pump:

by turning the potentiometer knob back and forth or by connecting an

analog voltage

via the control software

by pressing with a syringe a suitable flushing liquid (see table 1 and table 2)

through the micro annular gear pump

by changing the operating direction of the pump.

If these measures turn out to be ineffective, please contact the service staff of

HNP Mikrosysteme and send the pump back to the manufacturer for

inspection.

Warning You should under no condition try to disassemble the pump by yourself. This

may cause damage to the pump components and consequently annul your

warranty claims.

1.6 Return of the micro annular gear pump to the manufacturer

For the return of a micro annular gear pump and components that have already

been employed, please follow the instructions:

drain any remaining rests of the delivered liquid from the pump

flush the pump with an adapted solvent

remove the filter elements from integrated or loosely delivered filters

protect all openings against dust with the delivered protective plugs or

screws

return the pump in its original packing

The service personnel which carries out the repair should be informed about

the condition of the already used micro annular gear pump. This is done by

means of the "Declaration of media in contact with the micro annular gear

pump and its components" (see chapter 3). This form may also be downloaded

from the web site www.hnp-mikrosysteme.de/download.

!The "Declaration of liquids in contact with the micro annular gear pump and

its components" must imperatively be filled in. The nature of liquid which

entered into contact with the micro annular gear pump and its components

must be specified.

In case of non-compliance, the sender will be liable for any resulting injure to

persons or any object damage.

Last update: March 2015 Technical data subject to change without prior notice! 8

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