
Operation manual for micro annular gear pump
mzr-11507
HNP Mikrosysteme GmbH
Bleicherufer 25
D-19053 Schwerin
Phone: 0385/52190-301
Fax: 0385/52190-333
E-mail: info@hnp-mikrosysteme.de
http://www.hnp-mikrosysteme.de
Last update: August 2016

Impressum
Original instructions
Copyright
HNP Mikrosysteme GmbH
Bleicherufer 25
D-19053 Schwerin
All rights, including translation, reserved.
Without prior explicit written permission of HNP Mikrosysteme GmbH no part
of this manual may be, copied, reproduced or processed.
This manual has been prepared with care. HNP Mikrosysteme does assume no
liability for any errors in this manual and resulting consequences. Likewise, no
liability is assumed direct or subsequent damages arising from an incorrect use
of the devices.
While using micro annular gear pumps, the relevant standards regarding the
specifications of this manual have to be followed.
Subject to change without notice.

Contents Operating manual mzr-11507
Last update: August 2016 i
Contents
1 General Information 1
1.1 Application scope of the pumps 1
1.2 Product information 2
1.3 Technical data of the micro annular gear pump mzr-
11507 3
1.4 Measurements 4
1.5 Flow charts 4
1.6 Technical data of the motor 5
2 Safety instructions 6
2.1 Safety symbols in this operating manual 6
2.2 Staff qualification and training 6
2.3 Safety-conscious work 7
2.4 Safety instructions for the operator 7
2.5 Safety instructions for maintenance, check and
assembly of the pump 7
2.6 Unauthorized pump conversions and spare part
manufacture 8
2.7 Improper modes of operation 8
2.8 General safety instructions 8
3 Transportation and Storage 9
3.1 Shipment of the pumps and protection measures 9
3.2 Transport 9
3.3 Intermediate storage 9
4 Description 10
4.1 Micro annular gear pumps 10
4.2 Construction 12
4.3 Materials and media 12
4.4 Liquid supply 13
5 Optional modules 14
5.1 Fluidic seal module 15
5.2 Heat insulation module 18
5.3 Heating module 19
5.3.1 Electric heating module 19
5.3.2 Fluidic heating- and cooling module 20
5.4 Heating device „JETmicro“ 21
6 System integration 22
6.1 Check before the first assembly 22
6.2 Mounting of the micro annular gear pump 22
6.3 General instructions for the assembly of the liquid
supply network 22
6.4 Assembly instruction for tubing and accessories 23

Contents Operating manual mzr-11507
ii Technical data subject to change without prior notice! Last update: August 2016
6.5 Filter selection and use 25
7 Motion Controller 26
7.1 Operation with frequency inverter 26
8 Startup/shutdown of a mzr-pump 28
8.1 Prepare for start up 28
8.2 Startup of the micro annular gear pump 28
8.3 Flushing procedure after use 28
8.4 Shutdown of the micro annular gear pump 31
8.4.1 Conservation 33
8.4.2 Dismantling of the system 34
8.5 Problem shooting 35
8.6 Return of the micro annular gear pump to the
manufacturer 35
9 Accessories for micro fluidic systems 36
10 Non-liability clause 36
11 Problems and their removal 37
12 EC Directive 39
12.1 Electromagnetic Compatibility (EMC) 40
13 Declarations of conformity 41
14 Service, maintenance and warranty. 45
15 Contact persons 46
16 Legal information 47
17 Safety information for the return of already
employed micro annular gear pumps and
components 47
17.1 General information 48
17.2 Declaration of liquids in contact with the micro
annular gear pump 48
17.3 Shipment 48
18 Declaration of media in contact with the micro
annular gear pump and its components 49
19 Supplement 50

1 General Information Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 1
1 General Information
This operating manual contains basic instructions to be followed during
integration, operation and maintenance of a mzr
®
micro annular gear pump.
For this reason it is necessary to read it carefully before any handling of the
device. The present manual should always be kept at the operation site of the
micro annular gear pump.
In case assistance is needed, please indicate the pump type visible on the
housing.
1.1 Application scope of the pumps
The micro annular gear pumps described in this manual are suitable for
continuous delivery and discrete dosage of water, watery solutions, solvents,
methanol, oils, lubricating liquids, paints and varnishes as well as many other
liquids.
If you intend to treat any aggressive, poisonous, or radioactive liquids, you
must conform to safety measures as according to the regulations in force. Any
project concerning handling of corrosive liquids should be previously discussed
with the pump manufacturer.
The micro annular gear pumps must not be used for invasive medical
applications, in which the liquid having had contact with the pump is reintroduced to the body.
Micro annular gear pumps exclusively are provided for use in the industrial
area. A private use is excluded.
The micro annular gear pumps must not be used in aircrafts and spacecrafts or
other vehicles without prior consent of the manufacturer.
Data concerning resistance of the pumps to the manipulated liquids have been
elaborated according to the best of HNPM's knowledge. However, operating
parameters varying from one application case to another, no warranty for this
information can be given.
Information given in this manual does not release the customer from the
personal obligation to check the integrity, correct choice and suitability of the
pump for the intended use. The use of the micro annular gear pumps should
be conform with technical norms and regulations in force.
If you wish to receive more information than comprised in this operating
manual please contact directly HNP Mikrosysteme.

1 General Information Operating manual mzr-11507
2 Technical data subject to change without prior notice! Last update: August 2016
1.2 Product information
This manual is valid for the micro annular gear pump mzr-11507, manufactured
by HNP Mikrosysteme GmbH, Juri-Gagarin-Ring 4, D-19370 Parchim, Germany.
The bottom line of this manual shows the issue and date of issue of this
operating instruction.

1 General Information Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 3
1.3 Technical data of the micro annular gear pump mzr-11507
The following table shows the technical data of the micro annular gear pump
head
mzr-11507.
Constructive Specifications
Measurements (L x W x H) 303 x 110 x 171 mm
Weight approx. 9,3 kg
Material case stainless steel 1.4404, 1.4435 (316L)
tungsten carbide Ni-based
tungsten carbide Ni-based
Shaft seal graphite reinforced Teflon®, 316L
Static seals FPM (Viton
®
), optional: EPDM, FFPM
Fluid connections 3/8" NPT internal thread, lateral
Tubes D / ID 6 / 4 mm
Technical data
Flow rate 29 – 1152 ml/min ( = 69,1 l/h)
Smallest dosage volume 100 µl
Displacement volume 192 µl
Operating pressure range 0 – 40 bar (by Viskosity 1 mPas)
0 – 140 bar (by Viskosity 16 mPas)
Max. inlet pressure 10 bar
Viscosity range 0.3 – 150,000 mPas
Precision < 1 % Coefficient of Variation CV
Pulsation < 6 %
Internal volume 8506 µl
Operating temperature range -5 … +60 °C (-20 … +120 °C *)
Ambient temperature range -20 … +40 °C
caption: * Differing specifications on request
table 1 Technical data of the micro annular gear pump head mzr-11507
Warning
The material properties of a liquid (e.g. viscosity, lubricating property, particle
content, corrosiveness) impacts the technical data and the lifetime of pumps.
Under appropriate conditions the characteristic values may be increased or
decreased.
Warning
If you intend to operate the pump out of the range of the above given
specification, please consult the manufacturer. Modifications may be necessary
to ensure successful operation. Otherwise the pump or the system may be
damaged seriously.

1 General Information Operating manual mzr-11507
4 Technical data subject to change without prior notice! Last update: August 2016
1.4 Measurements
figure 1 Dimensions of the micro annular gear pump mzr-11507
1.5 Flow charts
Liquid water Liquid oil 16 mPas
0
200
400
600
800
1000
1200
0 10 20 30 40
6000
5000
4000
3000
2000
1000
0
200
400
600
800
1000
1200
0 10
20 30 40
6000
5000
4000
3000
2000
1000

1 General Information Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 5
1.6 Technical data of the motor
The micro annular gear pump mzr-11507 is provided with a 4 poles
asynchronous servo motor with high dynamic. The connection of the motor to
a frequency converter is simple.
Data of capacity SDSGAXX 056-22
(standard)
SDSGAXX-62-32
(alternative)
240 600 W
Max. Stall torque 0,81 1,9 Nm
Rated voltage 230/400 230/400 V
Rated frequency 100 100 Hz
Rated speed 2790 2825 rpm
Max speed 6000 6000 rpm
Rated power factor cos ϕ 0,71 0,7
moment of inertia 1,404 4,21 kgcm²
Protection class IP 55 IP 55
Weight 4 6,9 kg
table 2 Technical data of the motor

2 Safety instructions Operating manual mzr-11507
6 Technical data subject to change without prior notice! Last update: August 2016
2 Safety instructions
Comply with the general safety instructions listed in the safety section as well
as with the special safety instructions listed under the other main sections. All
legal and corporate safety instructions have to be obeyed.
2.1 Safety symbols in this operating manual
Please comply not only with the general safety instructions listed below, but
also with specific safety instructions mentioned in the following chapters.
Non respect of the safety instructions marked with the following signs
represents danger to people:
Danger symbol High voltage symbol
Safety symbol according to
DIN 4844 – W9
Safety symbol according to
DIN 4844 – W8
Non compliance with the safety instructions marked with the following sign:
Warning
represents a risk of damage to the micro annular gear pump.
Operating instructions machined directly on the pump such as the indication of
liquid input and output should be followed and kept in a clearly readable
condition.
2.2 Staff qualification and training
The staff operating, servicing, inspecting and assembling the pumps must
evidence the appropriate qualification for these works. Areas of responsibility
and competence as well as monitoring of the staff must be precisely regulated
by the decision maker. If the personnel do not have the necessary knowledge,
they must be trained and instructed accordingly. If necessary, this can be
implemented by the supplier or the manufacturer on behalf of the operator.
Furthermore, the operator in charge must ensure that the content of the
present manual has been fully understood by the personnel.

2 Safety instructions Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 7
2.3 Safety-conscious work
The safety instructions listed in this operating manual, the applicable national
regulations for accident prevents and all internal working, operating and safety
regulations of the operator must be complied with.
2.4 Safety instructions for the operator
The surface temperature of the motor under full load may exceed 60°C. If
needed, this surface should be protected on site against contact in order to
avoid skin burns.
The drive should be protected against dust, water vapor condensation,
humidity, splash water, aggressive gases and liquids. Please provide for
adequate air ventilation and thus cooling of the motor.
The micro annular gear pump mzr-11507 must not be used in areas exposed to
explosion risks or in the proximity of inflammable gases and vapors.
Possible leaks of dangerous liquids (for example from the shaft sealing) should
be guided away in a way not to represent any danger for the personnel and the
environment. The pump should be regularly checked for possible leakage. All
legal requirements in this matter should be followed.
The existing protections against contact for the moving parts of the pump (such
as for example the coupling) must not be removed during operation.
Take care that all risks resulting from the electric energy are excluded. (For
details please refer to the instructions provided by the authorities in charge or
your power supplier.)
Warning
Please insure, that the totality of the liquid supply accessories such as tubes,
hoses, filters etc. are free from dust or dirt particles. Impurities such as metal,
plastic or glass particles may impair or damage the pump leading to its failure.
Warning
Please, operate the pump with a filter featuring 10 µm or smaller pores. It will
protect the pump.
2.5 Safety instructions for maintenance, check and assembly of the pump
As a rule all maintenance work on the device should be performed when the
device is at a standstill. The shutdown procedure described in this manual must
be followed. Pumps delivering liquids hazardous to health must be
decontaminated. Immediately after the work had been completed all safety
equipment and protection measures should be applied.
Before starting the operation, please take into notice the instructions listed in
the chapter 6.

2 Safety instructions Operating manual mzr-11507
8 Technical data subject to change without prior notice! Last update: August 2016
Warning
Should a malfunction of the pump occur, do not dismantle the pump on your
own but contact one of HNP Mikrosysteme's service staff for professional
assistance.
2.6 Unauthorized pump conversions and spare part manufacture
Conversions or modification to the device are only permitted with prior consent
of the manufacturer. Original spare parts and accessories authorized by the
manufacturer ensure safety. The use of other parts will annul the liability of the
pump manufacturer for any resulting consequences.
2.7 Improper modes of operation
The safety of operation of the delivered device can only be insured by correct
use, as described in chapter 1. The limit values given in this manual must not be
exceeded in any case.
2.8 General safety instructions
Please observe the following safety instructions
The pump may operate at high pressures. For this reason please use only the
delivered accessories and ensure that the employed fittings and tubing have
been prescribed and approved for these pressures.
In order to decrease the pressure, provide the system with a pressure control
valve directing the excess liquid to the storage tank or back to the suction side.
In the case of blockage of the pressure side the operating pressure can
multiply, this can lead to the damage of downstream components.
At a standstill, the liquid may flow through the pump in the direction of the
falling pressure. In order to avoid this unwanted movement, please integrate
non-return valves (see accessories).
Protect the micro annular gear pump and the electric drive against strokes and
shocks.
Under normal working conditions the shaft sealing rings integrated in the
pump prevent the liquid from leaking out of the device. The micro annular
gear pumps are "technically leak-proof" however not "hermetically sealed"
which means it may occur that gases or liquids enter to or escape from the
pump.
The allowed operating parameters of the drive should not be exceeded. In
particular an incorrect polarity setting of the supply voltage may lead to
damage of the control unit.
Warning
Please insure, that the totality of the liquid supply accessories such as tubes,
hoses, filters etc. are free from dust or dirt particles. Impurities such as metal,
plastic or glass particles may impair or damage the pump leading to its failure.
Warning
Please operate the pump with a filter featuring 10 µm or smaller pores. It will
protect the pump.

3 Transportation and Storage Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 9
3 Transportation and Storage
3.1 Shipment of the pumps and protection measures
The pumps leaving the factory are secured against corrosion and shocks. The
inlets and outlets of the pumps are protected with plastic plugs in order to
prevent any foreign bodies from penetrating into the device.
3.2 Transport
In order to avoid any damage related to transport, the package must be
protected against shocks. HNP Mikrosysteme guarantees, that all goods leave
the factory in the best condition. Any noticed damage should be reported to
the concerned forwarding agent, authorized dealer or to HNP Mikrosysteme, as
manufacturer.
3.3 Intermediate storage
Following points concerning pump storage should be observed:
− Necessary conservation procedure (see also chapter 8.4.1)
− The protective plugs must be left screwed in
− The pump should not be stored in humid places
− For storage temperature - refer to chapter 1.3 of the present manual

4 Description Operating manual mzr-11507
10 Technical data subject to change without prior notice! Last update: August 2016
4 Description
4.1 Micro annular gear pumps
Micro annular gear pumps are positive displacement pumps. They contain two
rotors, bearing slightly eccentrically to each other; an externally toothed internal
rotor and an annular, internally toothed external rotor (see figure 2). Due to
their cycloid indenting, the rotors remain interlocked at any time, forming
during rotation a system of several sealed pumping chambers. As the rotors
revolve around their offset axis, the pumping chambers increase on the
induction (suction) side and simultaneously decrease on the delivery side of the
pump (see figure 3). A homogenous flow is generated between the kidney-like
inlet and outlet.
internal
rotor
external
rotor
delivery sideinduction side
inlet outlet
figure 2 Principle of the micro annular gear pump
figure 3 Operating principle of the micro annular gear pump
Reciprocating and rotary pumps have a direct allocation to the fed amount of
the displacement volume V
g
of the pump and its actuator’s number of
revolutions n. The displacement volume describes the volume, which is
theoretically fed with each revolution. The coherence of the flow rate referring
to the formula (= volumetric flow rate) Q of the pump is:
The volumetric efficiency
η
Vol
describes the coherence of the actual flow rate
from the theoretical resulting value. Differences occur according to leaking, as
the sealing on the inside of the pump is done over a gap. The volumetric

4 Description Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 11
efficiency is dependent on the media and the pressure against which it has to
be fed.
Example: The pump head mzr-11507 has a displacement volume of 192 µl. On
the assumption that the volumetric efficiency is 100%, the flow rate at a speed
of 3000 RPM would be 576 ml/min, according to the above formula. The table
3 shows theoretical flow rate values depending on speed expressed in ml/min
and l/h.
RPM Q [ml/min] Q [l/h]
100 19,2 1,15
500 96 5,76
1000 192 11,52
2000 384 23,04
4000 768 46,08
5000 960 57,60
6000 1152 69,12
table 3 Theoretical flow rate of the micro annular gear pump mzr-11507
The pressure, which the pump has to generate, is given by the construction of
the fluidic system and the results of the hydrostatic pressure and the hydraulic
resistants (given by tubes, contractions etc.).
The viscosity of the pumping medium has an important influence on the
volumetric efficiency. The volumetric efficiency increases with higher viscosity
according to the smaller disengagement through the gaps of the pump.
Cavitation is an effect, which can result in a specific ceiling speed. The reason
for this is the static pressure reaching the steam pressure of the liquid in the
inlet port of the pump. In this state an increase of speed does not result in an
increased flow rate. The formation of gas prevents a sufficient feeding of the
pump. With increasing viscosity of the liquid (e.g.> 10.000 mPas), the ceiling
speed is lower.
The specific feature of the
mzr-pumps is their highly precise design, as well as
the guarantee of high accumulator pressure and high accuracy in flow rate and
dosage. Therefore, space width and transverse space width of the rotors as well
as the interspace to the adjacent case parts are in the range of just a few
micrometers. This precision is the condition to achieve a volumetric efficiency in
the range of approx. 100 %.

4 Description Operating manual mzr-11507
12 Technical data subject to change without prior notice! Last update: August 2016
4.2 Construction
The micro annular gear pump consist of the pump head, coupling assembly,
motor and bracket (see figure 4).
terminal box
Liquid
outlet (D)
Liquid
inlet (S)
motor
bracket
coupling assembly
pump head
figure 4 Design of the micro annular gear pump
4.3 Materials and media
Components
Case stainless steel 1.4404, 1.4435 (316L)
Rotor, shaft, bearing tungsten carbide Ni-based
Shaft seal graphite reinforced PTFE, Hastelloy
FPM, optional: EPDM, FFPM
table 4 Materials of the components
The resistance of the construction materials to the delivered liquids should be
verified by the operator for each individual application. Pumps handling nonlubricating liquids have shorter service lives.

4 Description Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 13
4.4 Liquid supply
The micro annular gear pump head has an inscription on the front side (see
figure 5). The liquid inlet connection is marked with the letter »S«, the liquid
outlet connection with the letter »D«. An arrow indicates the inherent turning
direction of the shaft.
S
D
H
N
P
M
i
k
r
o
s
y
s
t
e
m
e
G
m
b
H
liquid inlet
(suction side)
liquid outlet
(pressure side)
figure 5 Indication of the turning direction and fluidic connections on the front of the micro annular gear pump
The pump head has two inner threads for the connection of tube fittings. The
pump head is available either in a version for lateral connections with 3/8” NPT
fittings.
Sealing plugs are inserted into the holes for the fluidic connections as
protection against contamination during delivery. The sealing plugs have to be
removed before assembly of the fluidic connectors. If the fluidic connectors are
disassembled, please re-seal the threads with the cleaned sealing plugs as
protection against particles.

5 Optional modules Operating manual mzr-11507
14 Technical data subject to change without prior notice! Last update: August 2016
5 Optional modules
The spectrum of applications of the high performance micro annular gear
pump series may be expanded by using different additional modules. The
modules allow for special applications, which could otherwise not be
accomplished with a standard pump version. The modules may be combined
with each other and with almost all available pump heads and motor versions.
− Fluidic seal module prevents possible chemical reactions between the
delivered liquid and the surrounding environment
− Thermal insulation module extends the operating temperature range of the
pump by protecting the motor from overheating
− Heating module enables to regulate the temperature of the fluid-containing
parts of the pump
The configuration of a given pump version should in each case be discussed
with consideration to the specific requirements of the application. Additional
customized modules may be designed on demand.

5 Optional modules Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 15
5.1 Fluidic seal module
Fluidic seal module
liquid outlet
(pressure side)
seal liquid
outlet
seal liquid
inlet
liquid inle t
(suction side)
Figure 6 Design of the micro annular gear pump with fluidic seal module
The role of the fluidic seal module is to prevent moisture and oxygen in the
surrounding atmosphere from penetrating into the pump. This eliminates the
risk of unwanted chemical reaction between the atmospheric gases and the
handled liquid (such as for example the crystallization reaction). The module
limits at the same time the possibility for the manipulated liquids to escape
from the pump.
The function of the fluidic seal module
The shaft sealing employed in the high performance micro annular gear pump
is designed in a way that allows for the formation of a boundary layer in which
the delivered liquid comes into contact with the surrounding environment.
Small amounts of water vapor and oxygen may penetrate through the
protective boundary liquid film into the pump. The fluidic seal module enables
to control this influx - only a chosen and compatible liquid may come into
contact with the delivered liquid. The fluidic seal module prevents also the
inverse movement of the liquid - from the pump to the environment - which
could otherwise not be excluded.
With the fluidic seal module, a second sealing is added to the existing shaft
sealing. A cylindrical chamber with input and output openings displaced by
180° is located between the two seals (see figure 7). When the chamber is filled
with an appropriate sealing liquid, the manipulated liquid does not enter into
contact with water vapor and oxygen, but dilutes at a small ratio in the sealing
liquid. The dilution ratio depends on the existing pressure relations and drops
with increasing viscosity.

5 Optional modules Operating manual mzr-11507
16 Technical data subject to change without prior notice! Last update: August 2016
fluidic
seal module
inlet seal liquid
outlet seal liquid
outlet
pump
liquid
inlet
pump
liquid
fluidic
chamber
gas tight module
additional
shaft seal
pump shaft
shaft seal
outlet
pump
liquid
inlet
pump
liquid
figure 7 Pump head without the fluidic seal module Pump head with the fluidic seal module
Pump operation with the fluidic seal module
Only liquids compatible with the delivered liquid may be used as sealing liquids.
That means no liquids that could possibly react with the delivered liquid should
be employed. The composition of the sealing liquid should be determined by
the operator.
While filling up the fluidic seal chamber a particular attention should be paid to
proper venting of the chamber through the two openings featuring a
1/4 - 28 UNF thread. These openings are slightly shifted downwards and
upwards to facilitate the degassing of the sealing chamber (see figure 9). The
chamber is filled through the bottom opening. The sealing liquid should be
filled in so long, till it flows free of air bubbles out of the top opening. Now the
inlet should be screwed down.
Sealing liquid inlet
Sealing liquid outlet
figure 8 Sectional view of the fluidic seal module
A cartridge may be used to supply the sealing liquid to the chamber (see
figure 7). In special cases compressed air may be applied to the sealing liquid in
order to enhance the sealing function. The sealing chamber may be flushed.
Make sure that enough sealing liquid is supplied to the fluidic seal chamber in
order to prevent any penetration of air and water vapor to the module.
If the fluidic seal chamber is empty, the pump should immediately be stopped.
Dry operation may lead to shaft seal damage.

5 Optional modules Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 17
In case the pump is not installed in the standard way (pump name read
horizontally), it is possible to shift the outlet and inlet openings of the pump.
However an appropriate supply of the sealing liquid should still be ensured and
all presence of air bubbles within the fluidic seal chamber should be avoided.
Use of the fluidic seal accessories
The fluidic seal set is mounted at the bottom inlet (see figure 8).
During assembly it is important to check if the ferrule is tightly attached to the
tube and that the tube is tightly screwed to the inlet of the fluidic chamber.
figure 9 Assembly of the fluidic seal accessories (standard version)
Liquid supply set in stainless steel version (as separate accessory)
Stainless steel liquid supply set is available on request. The use is the same as
with the standard version. The liquid supply is done by a glass syringe.
figure 10 Stainless steel set for the fluidic seal module

5 Optional modules Operating manual mzr-11507
18 Technical data subject to change without prior notice! Last update: August 2016
5.2 Heat insulation module
The heat insulation module enables to deliver hot liquids up to temperatures of
120° C (248 °F). It comprises thermally insulating coupling components made
of plastic (PEEK) located between the pump and the drive. The drive should not
be exposed to overheating. For this reason the heat transfer from the pump to
the drive should be limited. An additional thermal barrier is provided by the
plastic motor housing. If the surrounding temperature rises, the pump is
working over a longer period or the manipulated liquid features a high
temperature, convection cooling of the motor is recommended.

5 Optional modules Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 19
5.3 Heating module
5.3.1 Electric heating module
The electric heating module enables active heating of the pump head up to
120° C (248 °F) operating temperature. The heating module consists of a
heating jacket covering the pump head and a thermal element type L.
Depending on the pump size, the thermal element will be integrated on the
pump head in different ways. In order to adjust the temperature of the pump
head, an additional heat regulating device may be delivered.
Connection cable for
electric band heater
Thermoele ctric coup le
Electric h eading
jacket
figure 11 Micro annular gear pump with the electric heating module (figure with mzr-2905)
Before connecting the heating jacket and the thermal element to the power
supply, please observe the following technical data.
Thermal element
Type MT-1.5
Thermal element Type J (Fe-CuNi IEC 584)
alternativ:
Type L (Fe-CuNi DIN 43710)
Temperature measuring range 0 to 400 °C
Diameter of the sensing device 1.5 mm
Material V4A (1.4541)
Cable length 0,8 m
Heating jacket mzr-11507
Voltage 230 VAC
Power output 600 W
Diameter 70 mm
Width approx. 50 mm
Cable length 0,8 m
table 5 Technical data of the electric heating module

5 Optional modules Operating manual mzr-11507
20 Technical data subject to change without prior notice! Last update: August 2016
5.3.2 Fluidic heating- and cooling module
The fluidic heating and cooling module permits active heating or cooling of the
pump head in the operating temperature range from -20 °C (-4 °F) to a
maximum of 120 °C (248 °F). The module consists of a double casing covering
the pump head and a thermoelectric couple type L, whose mode of integration
varies depending on the pump size. Oil, water, superheated steam or adapted
cooling liquids may be used as thermal liquids. If you are not sure, which heat
transfer liquid is the best adapted in your case, HNP Mikrosysteme will help you
find the suitable one. The inlet for the heat transfer liquid is situated at the
back (beveled) and the outlet is in the front (see figure 12).
heat transfer liquid
outlet
thermoelectric couple
double casing
liquid inle t
(suction side)
heat transfer liquid
inlet
liquid outlet
(delivery side)
figure 12 Micro annular gear pump with integrated fluidic heating- and cooling module (example of mzr-11508)
This heating module is not certified for use in areas exposed to explosion
hazards!
Before connecting the liquid supply, please observe the following technical
data! The maximal pressure of the heat transfer liquid should not exceed
10 bar.
Thermal element
Type MT-1.5
Thermal element Type J (Fe-CuNi IEC 584)
alternativ:
Type L (Fe-CuNi DIN 43710)
Temperature measuring range 0 to 400 °C
Diameter of the sensing device 1.5 mm
Material 1.4541
Double jacket mzr-11507
Length 82 mm
Diameter 85 mm
Double jacket material stainless steel 316L
Inlet 2xG1/8“
Operating temperature range -20 to 120 °C
Flow rate max. 0.5 l/min
table 6 Technical data of the heating and cooling module

5 Optional modules Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 21
5.4 Heating device „
JET
micro“
The heating device „JETmicro“ has been designed for use with the electric
heating module (see chapter 5.3.1).
Hand: Blinks during temperature set in the manual input mode
Ada: Ada display blinks during the automatic control adjustment
AL: Alarm display – not configured, no importance
Actual value
display:
= sensor failure
= sensor reverse polarity
With
or the nominal temperature may be set.
Power supply
Shock-proof plug, 3 m long, 90-230 VAC
Electrical connection
10-pole bush insert, 16 A/250 V
Heating Sensor
L N + -
Zone 1 1 6 2 7
Zone 2 (Option) 4 9 5 10
table 7 Pin configuration of the heating device

6 System integration Operating manual mzr-11507
22 Technical data subject to change without prior notice! Last update: August 2016
6 System integration
6.1 Check before the first assembly
Inspect the pumps for potential damage during the shipment (see chapter 3.2).
Please check, if the right pump type has been delivered, as according to the
following points:
− Compatibility with the delivered liquid
− Viscosity range
− Pump performance (displacement volume, dosage volumes, operating
pressures)
− Operating temperature range
If you notice any difference between the required and the delivered pump
type, please contact HNP Mikrosysteme. Do not put the pump into operation
without prior approval.
6.2 Mounting of the micro annular gear pump
The micro annular gear pump is mounted on an angle support with M5 screws.
The favored mounting position of the micro annular gear pump is horizontal.
However, if the pump has to be operated vertically, the motor must be located
above the pump head in order to prevent the liquid from entering into the
motor.
Warning
Install the pump in such a way that in case of failure no liquid can enter the
motor or controller.
Take precautions that in case of leakage no surrounding objects or
environment will be damaged.
Install the micro annular gear pump only in places that fulfill the required
conditions for safe pump operation.
The motor must be protected against humidity, dust or sweat.
6.3 General instructions for the assembly of the liquid supply network
Please always cut the tubing at a right angle with an adapted hose cutter. If
metal tubes are used, an intensive cleansing procedure will be necessary. After
machining the tubing has to be cleansed and flushed throughoutly. The
smallest piece of swarf within the liquid delivery system may cause failure of
the micro annular gear pump.
Please note that correct integration of the tubing with the pump head is a
necessary condition to ensure the right direction of flow. If you wish to
operate the pump in a reverse direction, please contact HNP Mikrosysteme,
since it is not possible in every case.

6 System integration Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 23
In order to protect the interior of the pump from pollution, the pump heads
are delivered with protective plugs. They should be put on when the pump is
at a standstill.
For the best performance the suction tube should be as short as possible and
have a large internal diameter.
Warning
In most cases the pump should be operated with a filter featuring pores that
do not exceed 10 µm. The filter protects the pump from particles and dirt.
6.4 Assembly instruction for tubing and accessories
Particles or soiling can block or impair the function of the micro annular gear
pump.
Warning
Please check that all wetted parts of the fluidic system are clean. Clean these
parts in case before mounting the pump.
Please check whether there are swarfs in the screw connections, pollution
remaining in reservoirs or soiling in valves, pipe work or filters.
Assembly of the tubing and piping system
1. Please cut the tubing rectangular with a hose cutter. If metal pipes are
used an intensive cleaning procedure is necessary. After machining the
pipes have to be cleaned and flushed very carefully. Smallest swarfs within
the fluidic system can cause failure of the micro annular gear pump.
2. Connect the 3/8" fittings with the tubing respectively the pipe work
according to the attached installation instruction.
Please note that the correct assembly of tubes respectively pipes with the
pump head is a necessary condition to secure the right direction of flow. When
you want to operate the pump in reverse direction please contact
HNP Mikrosysteme since this is not possible in any application.
3. The thread of the fitting should be wrapped with 2-3 layers of PTFE tape
and screwed in the NPT thread (see table 8). First manually, then tightened
with ½ to ¾ wrench turns.

6 System integration Operating manual mzr-11507
24 Technical data subject to change without prior notice! Last update: August 2016
Clean the internal and external
screw threads leaving no residues.
Make sure the internal and
external screw threads are not
Wrap the PTFE tape around the screw
thread clockwise beginning with the
second pitch of screw thread..
The PTFE tape should be wrapped
tightly around the screw thread
approx. two times (720°).
Cut the PTFE tape off and wind
the end of the tape tightly around
the screw thread.
The PTFE tape should not stick out over
screw thread because pieces can be cut
off and get into the system.
table 8 Use of PTFE Tape
4. The suction line should be installed ascending to the pump for better
degassing. The suction line should be designed as short as possible. The
inner diameter of the suction line should be large to guarantee good
priming of the liquid. At the planning of the pipe system take care of
possibilities for degassing.
5. Operate the micro annular gear pump always with a filter with a pore size
of 10 µm or smaller. The filter prevents that particles or solids penetrate
into the pump what can cause major damage.
6. Avoid dry running of the pump. Make sure that the liquid flow is not
interrupted.

6 System integration Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 25
6.5 Filter selection and use
In majority of cases it is recommended to integrate a filter on the suction side
of the micro annular gear pump to ensure its secure operation. The
recommended filter pores or mesh size should not exceed 10 µm. The
penetration of particles or swarf that could cause a blockage or damage to the
pump can only be avoided by using an adapted filter.
HNP Mikrosysteme offers a choice of standard filters covering a broad spectrum
of applications. You may count on our assistance for the selection of the most
suitable one.
In order to select the best adapted filter, such operating parameters as flow
rate, viscosity and degree of pollution of the liquid will be needed. An increase
in at least one of the mentioned terms will require the use of a bigger filtering
element or the pressurization of the delivered liquid. In case no suitable filter
for high viscosity liquid can be found, it is possible to use a filter with slightly
larger pore size. Prior discussion with HNP Mikrosysteme is here recommended.
A filter with larger pores is still better than no filter at all. Alternatively an
already filtered liquid may be used.
Warning
Because filters have a large internal volume, it is recommended to fill in the
filter and the suction tube with already filtered liquid in order to avoid a longer
dry operation of the pump during the startup.
Warning
Please control regularly the filtering elements for pollution. Cleanse regularly
the filter or replace it with a new one. A polluted filter may considerably
decrease the volumetric efficiency of a pump. Furthermore, because of the
cavitation effects dosage imprecision and even pump damage may occur.
Warning
A too small filter (too little filtering surface) may considerably decrease the
volumetric efficiency of the micro annular gear pump. What is more, because
of the cavitation effects dosage imprecision and even pump damage may
occur.

7 Motion Controller Operating manual mzr-11507
26 Technical data subject to change without prior notice! Last update: August 2016
7 Motion Controller
7.1 Operation with frequency inverter
The motor of the micro annular gear pump mzr-11507 is a 4-pole asynchronous
motor.
For the operation of the pump a frequency inverter must be used.
In the case the micro annular gear pump was delivered together with a
frequency inverter, the inverter is predefined already on a motor speed range of
approx. 300 to 6000 rpm.
Please observe al' instructions to the frequency inverter e.g. »Operation
instructions« and »Mounting instructions«. The no observance of these
instructions may lead to the damage of the micro annular gear pump and the
frequency inverter.
Warning
Set the parameters of the fequency inverter to the assessment parameters of
the motor. The failure to observe the assessment parameters can lead to the
destruction (damage) of the motor!
General indications for initial operation:
− Read the mounting Instructions and operating instructions before you start
working!
−
Please observe all safety information given!
− Please observe the technical data!
− When working on live controllers, the valid national regulations for the
prevention of accidents (e. g. VBG 4) must be observed.
−
The electrical installation must be carried out in compliance with the
corresponding regulations (e.g. cable cross-sections, fuses, PE connection).
Additional notes and information can be obtained from the corresponding
Instructions.
− Connect the internal motor thermal contact (NC)!
− Please observe the maximum permissible motor cable length!
−
The motor has to be attached into delta connection at the use of a one
phases frequency inverter!
−
All operations must be carried out only by qualified and skilled personnel
when the low-voltage machine is at standstill and when the machine is deenergized and protected against unintentional restart. This also applies to
auxiliary circuits (e.g. brake, encoder, separate fan). Check safe isolation
from the supply!
− Take the frequency inverter into operation!
− Parameterize the frequency inverter with the permitted parameter of the
micro annular gear pump!
− Set the max. output frequency to 200 Hz
− Set the V/f-rated frequency 100 Hz.
− Save all changed parameter!
− Enable the controller!
− Set point selection e.g., changes the speed of the micro annular gear pump
via potentiometer at terminals.

7 Motion Controller Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 27
− If unknown faults appear or an uncertainty arises from appearing faults in
the working with the pump, immediately shut down the micro annular gear
pump at first!

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
28 Technical data subject to change without prior notice! Last update: August 2016
8 Startup/shutdown of a mzr-pump
8.1 Prepare for start up
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?
8.2 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.
8.3 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 9 and
table 10). 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.

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 29
Selection of flushing
liquid (FL)
figure 13 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 10).
Warning
The flushing liquid (solvent) and the recommended duration of the flushing
procedure depend on the delivered liquid (see table 10). 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!
see table 10 (Resistance of the sealing material)
see table 9 (Selection of the flushing liquid)
see table 9 (Selection of the flushing liquid)

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
30 Technical data subject to change without prior notice! Last update: August 2016
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
10 Strong oxidizing liquids 35-45 DI- water
11 Paints, varnishes, adhesives 50-60 not specified - for further information
please contact HNP Mikrosysteme.
table 9 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 10).
Shaft sealing O-ring material
Flushing liquid
PTFE (Teflon®),
graphite-
reinforced
UHMWPE FKM
(Viton®)
EPDM FFKM
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
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 10 Resistance of the sealing materials depending on the flushing liquid (solvent)

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 31
8.4 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 8.3.
− After the flushing procedure decrease speed of the pump to 0 rpm
− Fill the pump with a suitable conservation liquid (see chapter 8.4.1)
− Remove the pump from the system (see chapter 8.4.2)
By proceeding as shown in the diagram (see figure 15) you may prepare the
pump for a longer standstill.

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
32 Technical data subject to change without prior notice! Last update: August 2016
Selection of
conservation liquid
(CL)
manipulated
liquid =
conservation
liquid
Selection of flushing
liquid (FL)
Selection of conservation
liquid (CL)
Is the CL
compatible
with pump
Is the CL
compatible
with the
last FL ?
Let the gas through
the pump
End of conservation
procedure
New operation after
the conservation
procedure
figure 14 Diagram of the shutdown procedure
see table 9
see table 10
see table 11
see table 10

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 33
8.4.1 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 8.3), be filled in with a suitable
conservation liquid.
The conservation liquid may be selected from the table 11 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 15 presents a diagram of conservation agent selection.
Remark: This diagram is repeated as a part of the figure 14 (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 11.
Selection of conservation
liquid (CL)
Is the CL
compatible
with pump
Is the CL
compatible
with the
last FL ?
figure 15 Diagram - selection of conservation liquid (CL)
see table 10 (Resistance of the sealing material)
see table 11 (Selection of the conservation agent)

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
34 Technical data subject to change without prior notice! Last update: August 2016
Liquids
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
+ + - - + + 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 11 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 bio film which can later block the pump.
8.4.2 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 8.3 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.

8 Startup/shutdown of a mzr-pump Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 35
8.5 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 9 and table 10)
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 (see chapter 15) 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.
8.6 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 18). 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.

9 Accessories for micro fluidic systems Operating manual mzr-11507
36 Technical data subject to change without prior notice! Last update: August 2016
9 Accessories for micro fluidic systems
The accessories available by HNP Mikrosysteme for micro fluidic systems include
hoses, tubes, fluidic connectors and pressure control valves, offering perfect
matching to your
mzr-pump. We would be pleased to help you to choose the
fitting accessories.
10 Non-liability clause
HNP Mikrosysteme GmbH shall not be liable any damage resulting form the
non-respect of instructions comprised in this operating manual.
It belongs to the user to check the integrity, the correct choice and the
suitability of the product for the intended use.
It remains at the responsibility of the user to conform to all laws, rules and
regulations in force. This applies above all to the treatment of aggressive,
poisonous, corrosive and other dangerous liquids.

11 Problems and their removal Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 37
11 Problems and their removal
Error Possible cause of error Action
1 No function No power supply Check all power switches
2 Pump does not dose No dosage liquid in the tank Fill the liquid tank
Motor error Check motor Status of the pump with the
software Motion Manager
Dosage needle blocked Check and clean the dosage needle
Back-pressure valve does not work Check the back-pressure valve
No signal for start dosage Check the start signal of the central
control unit (PLC)
Pump error Replace pump and send the pump to the
manufacturer
3 Pump does not prime during bringing
the dosage system into service
Pump does not suck Check of the installation
-„- Check air pressure on tank
-„- Back-pressure valve does not open,
Check the back-pressure valve!
-„- Air bubbles in fluid system (tubings,
Tubings leak Change the tubings
4 Motor works but pump does not pump No liquid in pump Prime the pump
Air bubbles in fluid system (tubings, valves) Prime the pump and the fluid system
Valve not open Flush the valve
Dosage needle blocked Clean, flush or change the dosage needle
Coupling of the connection motor –pump
is loose
Replace pump and send the pump to the
manufacturer
Pump shaft is broken Replace pump and send the pump to the
manufacturer
5 Pump does not pump but is filled with
liquid
Particle in dosage liquid or pump blocked Check Status of the pump with the
software Motion Manager
Try to get free the pump with negative
prime speed (-500 rpm) for only 1 s
-„- Don’t change the parameter of the motor
with command »FCONFIG«, »LPC«,
»LCC«!
-„- Flush the pump with the syringe
Back-pressure valve not open Flush the valve
Dosage needle blockade Clean or flush the needle
Air bubbles in fluid system (tubings, valves) Fill/Prime the pump and the fluid system
6 Dosage volume does not correspond
with the datasheet or calculation
Air bubbles in fluid system and pump Flush the fluid system and check the fluid
system for opening connections
Filter dirty Change the filter
Back-pressure valve not open Flush the back-pressure valve
7 Liquid leaks out of the dosage needle
(dosage needle drops)
Back-pressure valve not closed Flush the back-pressure valve
Pressure at process liquid tank Disconnect the pressure connection of the
process liquid tank
8 Liquid leaks out of the sealing liquid
needle
Pressure at sealing liquid tank Disconnect the pressure connection of the
sealing liquid tank
9 Dosage volume reduces over the time Filter dirty Change the filter
Dirt or deposition in the pump Flush the pump or send the pump to the
manufacturer for cleaning
10 Leak at the pump body Seal out of order Send the pump to inspection to the

11 Problems and their removal Operating manual mzr-11507
38 Technical data subject to change without prior notice! Last update: August 2016
Error Possible cause of error Action
manufacturer
11 Leak of the fluid connections Flangeless ferrules leak Change the flangeless ferrules
12 Status of the pump cannot be checked
or calibrated
No contact/connection to the pump Check the power supply of the pump
-„- Check the connection of the zero modem
cable between PC and dosage system or
try to use a new cable
Motor control out of order Switch the power supply for a short time
OFF and then ON to start the motor
control again
13 Over temperature Pump surface dirty Clean the pump surface
Pump works heavy Flush the pump
14 Over current Pump works heavy Dosage needle damage, replace the
needle
-„- Dosage needle blockade, clean or flush
the needle
Back-pressure valve not open Flush the back-pressure valve
Particle in dosage liquid Flush the pump
table 12 Trouble shooting guide
If unknown faults appear or an uncertainty arises from appearing faults in the
working with the pump, immediately shut down the micro annular gear pump
at first!

12 EC Directive Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 39
12 EC Directive
A Directive or EC Directive is a legal instrument of the European Community
addressing at the member states and forcing them to implement specific
regulations or targets. Leastwise, micro annular gear pumps are covered, by the
scope of application of the following Directives: The following directives are of
importance for the user of the described micro annular gear pumps:
Low-Voltage Directive (2014/35/EU)
The Low-Voltage Directive is relevant for micro annular gear pumps described
in this manual.
Machinery Directive (2006/42/EC)
A micro annular gear pump is a machine and is consequently covered by this
Directive. However, it may be a part of a machine or installation.
EMC Directive (2014/30/EU)
The Directive on Electromagnetic Compatibility (EMC) applies to all electronic
and electrical devices, installations and systems. Consequently, the frequency
inverter for the micro annular gear pump is covered by the EMC Directive.
RoHS Directive
(2011/65/EC)
To our knowledge our products delivered to you do not contain substances or
applications in concentrations that are forbidden by this directive. No
substances contain our products delivered to you after our current knowledge
in concentrations or application, the
placing on the market in products
according to the valid requirements forbade to the Directive.
WEEE Directive (2002/96/EC)
Disposal of micro annular gear pumps has to be environmentally sound.
All materials and liquids have to be recycled in accordance with the relevant
regulations. Electrical parts can not be disposed of as household waste. They
have to be delivered to designated collection points.

12 EC Directive Operating manual mzr-11507
40 Technical data subject to change without prior notice! Last update: August 2016
REACH regulation (EC) No. 1907/2006
HNP Mikrosysteme is not a manufacturer or importer of chemical substances
subjected to registration, but in terms of regulation, a downstream user. As
downstream user, we conduct the necessary communication with our suppliers
to ensure future deliveries of all components necessary to us. We will notify you
of all relevant, changes in our products, their availability and the quality of
parts/products delivered by us within our business and coordinate the
appropriate action in individual cases with you. Previous inspection did not
show any limitation in the supply of material from our upstream suppliers.
12.1 Electromagnetic Compatibility (EMC)
Electromagnetic compatibility is defined as the ability of a electric or electronic
device to function satisfactorily as intended in its electromagnetic environment
without introducing intolerable electromagnetic disturbances in that
environment.
Please observe al EMC instructions to the frequency inverter e.g. »Operation
instructions« and »Mounting instructions«. A no observance of these
instructions can destructed of the micro annular gear pump and the frequency
inverter.

13 Declarations of conformity Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice!. 41
13 Declarations of conformity
The delivered micro annular gear pump falls within scope of the following EC
directives:
− Machinery Directive (2006/42/EC)
You may request the declarations of conformity for the micro annular gear
pumps from us separately.

EC-manufacturer’s certificate
(following Machinery Directive 2006/42/EC)
We hereby declare that the following micro annular gear pump of the high
performance series:
mzr-11507
is intended for installation into another machinery/plant and that start of
operation is forbidden until it is identified that the machinery/plant into which
these micro annular gear pumps shall be installed corresponds to the
regulations of the EC guidelines regarding safety and health requirements.
We confirm the conformity of the product described above to the following
standards in terms of applied directives
− Machinery Directive (2006/42/EC)
Applied standards are particularly
DIN EN 809 DIN EN 60204-1 DIN EN 294
DIN EN ISO 12100 part 1 DIN EN 953
DIN EN ISO 12100 part 2 UVV
This statement does not warrant any characteristics in terms of product liability.
Please note the safety instructions in the manual.
Mr. Lutz Nowotka, HNP Mikrosysteme GmbH, Bleicherufer 25, D-19053
Schwerin is authorised to compile the technical file according to Annex VII A.
Date: 30 December 2009
Signature manufacturer:
Dr. Thomas Weisener

14 Service, maintenance and warranty. Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice! 45
14 Service, maintenance and warranty.
The maintenance of the micro annular gear pump should be carried out
depending on the delivered liquid
− for lubricating liquids after 12,000 h working hours, but not later than
24 months after the initial operation
− for non-lubricating liquids, crystallizing liquids or liquids containing particles,
after 5000 h working hours but not later than 12 months after the initial
operation. If during the first inspection no substantial wearout of the pump
is observed, the following inspection under the same working conditions
should be performed after 8000 h working hours, yet not later than
15 months following to the last inspection.
If during the first inspection the pump shows a particularly strong wearout, the
maintenance intervals should be readapted to the operating parameters.
In order to prevent a strong wearout of the pump, the pump should be shut
down properly after every application as described in the chapter 8.4. A
supplementary flushing procedure with a neutral flushing liquid (see
chapter 8.3) also slows down the wearout process of the pump.
It is not allowed to open the micro annular gear pumps. The warranty extincts
with the expiry of the legal warranty period or with the opening of the pump.
Furthermore HNP Mikrosysteme cannot give any warranty of exchange for
parts whose damage result from incorrect use.
For service and maintenance please return your micro annular gear pump to
HNP Mikrosysteme (You will find the address on the cover of the present
operating manual).
The declaration of liquids having had contact with the micro annular gear
pump and components must imperatively be completed. The nature of the
liquids must be specified. In case of non-compliance the sender will be liable
for any resulting injure to persons or any object damage.
Sealings, rotors and shaft are parts that undergo wear and will be replaced by
HNP Mikrosysteme GmbH during maintenance depending on their degree of
wear.

15 Contact persons Operating manual mzr-11507
46 Technical data subject to change without prior notice! Last update: August 2016
15 Contact persons
Development and application assistance , service and accessories
Mr. Sven Reimann
Phone +49| (0) 3871|451-349
Service and maintenance
Mr. Steffen Edler
Phone +49| (0) 3871|451-307
Drive and control technology
Mr. Lutz Nowotka
Phone +49| (0) 3871|451-346

16 Legal information Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice! 47
16 Legal information
Marks
mzr
®
is a registered German trademark of HNP Mikrosysteme GmbH.
MoDoS
®
is a registered German trademark of HNP Mikrosysteme GmbH.
µ-Clamp
®
is a registered German trademark of HNP Mikrosysteme GmbH.
HNPM
®
is a registered German trademark of HNP Mikrosysteme GmbH.
Teflon
®
is a registered trademark of DuPont.
Viton
®
is a registered trademark of DuPont Dow Elastomers.
Kalrez
®
Spectrum™ is a registered trademark of DuPont.
PEEK™ is a registered trademark of Victrex plc.
HASTELLOY
®
is a registered trademark of Haynes International, Inc.
Aflas
®
is a registered trademark of ASAHI Glass Ltd.
Microsoft
®
, Windows® are registered trademarks of Microsoft Corporation in
the USA and in the other countries.
Cavro
®
is a registered trademark of Tecan Systems, Inc.
Other product names or descriptions not mentioned above are possibly
registered trademarks of related companies.
Patents
Micro annular gear pumps (and housings) are protected by assigned patents:
EP 1115979 B1, US 6,520,757 B1, EP 852674 B1, US 6,179,596 B1,
EP 1354135, US 7,698,818 B2. Patents pending DE 10 2011 001 041.6,
PCT/IB2011/055108, EP 11 81 3388.3, US 13/884,088, CN 2011 8006 5051.7,
HK 13 11 2934.9, DE 10 2011 051 486.4, PCT/EP2012/061514,
EP 12 728264.8, US 9,404,492 B2, CN 2012 8003 8326.2. In the US, Europe
and China additional patents are pending.

17 Safety information for the return of already
employed micro annular gear pumps and components Operating manual mzr-11507
48 Technical data subject to change without prior notice! Last update: August 2016
17 Safety information for the return of already
employed micro annular gear pumps and components
17.1 General information
The operator carries the responsibility for health and safety of his/her
employees. The responsibility extends also to employees not belonging to the
company that have a direct contact with the micro annular gear pump and its
components during repair or maintenance works. The nature of media (liquids)
coming into contact with the micro annular gear pump and its components
must be specified in the corresponding declaration form.
17.2 Declaration of liquids in contact with the micro annular gear pump
The staff performing the repair or maintenance works must be informed about
the condition of the micro annular gear pump before starting any work on the
device. The »Declaration of media in contact with the micro annular gear
pump« should be filled in for this purpose.
The declaration should be sent directly to the supplier or to the company
designated by the supplier. A second copy of the declaration must be attached
to the shipment documents.
17.3 Shipment
The following instructions should be observed for the shipment of the micro
annular gear pump.
− drain any remaining liquid from the pump
− flush the pump with an adapted flushing liquid
− remove the filter elements from the integrated or loosely delivered filters
− all the openings should be air-tight plugged
− return the pump in the original packing

18 Declaration of media in contact
with the micro annular gear pump and its components Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice! 49
18 Declaration of media in contact
with the micro annular gear pump and its components
Type of the device
Pump type/serial number/article no.:
Operating hours/running time:
Number of delivery note or delivery date:
Reason of return:
Contact with media (liquids)
The micro annular gear pump was in contact with:
and has been rinsed with:
Product info sheet / Material Safety Data Sheet: yes* no
* Please attach file
or is available on the following web site: www.
If a pump which had contact with dangerous substances could not be properly cleansed prior to shipment,
we reserve the right to entrust a specialized company with cleansing of the device. The return of the pump
in original packing is advisable. It is necessary in order to protect the employees and delivery staff.
Nature of media contact:
explosive
toxic (toxic byproducts)
carcinogenic
irritant
oxidizing
radioactive
microbiological
corrosive
sensitive to moisture
pH-value: approx. to
R-statements: S-statements:
Declaration
Hereby I/we affirm that the stated information is complete and correct. Micro annular gear pump and
accessories are shipped in conformity with the applicable regulations.
company:
division:
street, no.:
ZIP/city:
country:
city, date:
Mrs Mr title:
name:
phone:
e-mail:
authorized signature /
company stamp:

19 Supplement Operating manual mzr-11507
50 Technical data subject to change without prior notice! Last update: August 2016
19 Supplement
− Layouts
− Manual of the frequency inverter (S-FI)

19 Supplement Operating manual mzr-11507
Last update: August 2016 Technical data subject to change without prior notice! 51