
Operating manual for micro annular gear pump
mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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: October 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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 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 pumps 3
1.4 Measurements 6
1.5 Flow charts 7
1.6 Technical data of the Ex-motor 9
1.7 Technical data of the altenativ brushless DC Ex-motor
(X2 version) 12
2 Safety instructions 15
2.1 Safety symbols in this operating manual 15
2.2 Staff qualification and training 15
2.3 Safety-conscious work 16
2.4 Safety instructions for the operator 16
2.5 Safety instructions for maintenance, check and
assembly of the pump 16
2.6 Unauthorized pump conversions and spare part
manufacture 17
2.7 Improper modes of operation 17
2.8 General safety instructions 17
3 Transport and intermediate storage 18
3.1 Shipment of the pumps and protection measures 18
3.2 Transport 18
3.3 Intermediate storage 18
4 Description of the micro annular gear pump 19
4.1 Operating principle of the micro annular gear pump 19
4.2 Construction 21
4.3 Construction materials 22
4.4 Liquid supply 23
5 Optional modules 24
5.1 Heat insulation module 25
5.1.1 Operation of the micro annular gear pumps with
heat insulation module in different temperature
classes 26
5.1.2 Monitoring of operation in the temperature class T4
and T5 27
5.1.3 Liquid temperature range for operation in
temperature class T4 and T5 28
5.1.4 Liquid temperature range for operation in
temperature class T6
28
5.1.5 Thermal element 29

Contents Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
ii Technical data subject to change without prior notice! Last update: October 2016
6 System integration 30
6.1 Check before the first assembly 30
6.2 Details place of operation 30
6.3 Mounting of the micro annular gear pump 30
6.4 General instructions for the assembly of the liquid
supply network 31
6.5 Electrical Connections 32
6.6 Assembly instruction for tubing and accessories 32
6.7 Filter selection and use 34
6.8 Requirements for motor controller 35
6.9 Operation with external motion controller S-HD-KL 36
6.10 Connection of the micro annular gear pump with SG05 39
6.10.1 Startup with potentiometer 41
6.10.2 Startup with external 0-10 V signal 42
6.10.3 Startup with an external 0(4)-20 mA current signal 43
6.10.4 Startup with external potentiometer 45
6.10.5 Startup with the RS-232 interface 46
6.11 Installation of the software »Motion Manager« 47
7 Startup/shutdown of a mzr-pump 48
7.1 Preparing for operation 48
7.2 Startup of the micro annular gear pump 48
7.3 Re-start after dry run 48
7.4 Operation of the micro annular gear pumps without
heat insulation module in different temperature
classes 49
7.5 Monitoring of operation in the temperature class T5,
T6 50
7.6 Flushing procedure after use 50
7.7 Shutdown of the micro annular gear pump 53
7.7.1 Conservation 55
7.7.2 Dismantling of the system 56
7.8 Trouble shooting 57
7.9 Return of the micro annular gear pump to the
manufacturer 57
8 Software »Motion Manager« 58
8.1 Command mode 58
8.2 Programming of motion controller 60
8.3 Transfer of mcl-files to motor controller 60
9 Accessories for microfluidic systems 63
10 Non-liability clause 63
11 Problems and their removal 64
12 EC Directive 67
12.1 Electromagnetic Compatibility (EMC) 68

Contents Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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12.1.1 EMC Directive and Standards 68
12.1.2 Information on use as intended 69
13 Declaration of conformity - manufacturer’s
declaration 70
14 Maintenance and service 84
14.1 Micro annular gear pumps 84
14.2 Magnetic coupling 84
14.3 Ex-Motor 84
15 Contact person 85
16 Legal information 86
17 Safety information for the return of already
employed micro annular gear pumps and
components 87
17.1 General information 87
17.2 Declaration of liquids in contact with the micro
annular gear pump 87
17.3 Shipment 87
18 Declaration of media in contact with the micro
annular gear pump and its components 88
19 Appendix 89

Contents Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
iv Technical data subject to change without prior notice! Last update: October 2016

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 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 magnetic or 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.
The data concerning resistance of the pumps to manipulated liquids is
elaborated according to the best of HNP Mikrosysteme'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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
2 Technical data subject to change without prior notice! Last update: October 2016
1.2 Product information
The present operating manual is valid for the micro annular gear pumps
mzr-6359 Ex, mzr-7259 Ex and mzr-6359X2 Ex, mzr-7259X2 Ex manufactured
after June 2016 by HNP Mikrosysteme GmbH, Bleicherufer 25, D19053 Schwerin, Germany.
The date of release of the present manual figures on the cover.
The micro annular gear pumps described in the operation manual are conform
to the applicable EC standards and are permitted to bear the CE mark.

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 3
1.3 Technical data of the micro annular gear pumps
mzr-6359 Ex,
mzr-6359X2 Ex
mzr-7259 Ex,
mzr-7259X2 Ex
Explosion-protection
Ex-certification
CE
II 2G IIC c T4 X
Ambient temperature 0 … +40 °C
Installation place Ex-area zone 1, 2
Protection categories c, d (Ex-motor)
Technical data
Measurements [mm] L x B x H see appendix see appendix
Weight [g] approx. 4900 4900
Internal volume [ml] 3.55 3.57
Rotor material partially stabilized ZrO2,
optional: tungsten carbide
Ni-based
Pump case material alloy C22 (2.4602),
optional: stainless steel
Bearing material
sintered silicon carbide
Static sealing FFPM, optional: FPM
Threaded fluid supply
connections
1/8"NPT (lateral)
Coupling bellow coupling
Flow rate Q [ml/min] 0.024 - 112 0.048 - 225
Flow rate Q [ml/min] X2 version 0.024 - 96 0.048 - 192
Min. dosage volume [µl] 15 30
Max. system pressure [bar] inlet pressure+differential
pressure
80 (1160 psi)
60 (870 psi) for
pump made of 316L
80 (1160 psi)
60 (870 psi) for
pump made of 316L
Differential pressure range
[bar]
viscosity 1 mPas 5 (-hx) (72 psi)
15 (-cx) (217 psi)
15 (-dcx) (217 psi),
20 (-cx) (290 psi)
30 (-hx) (435 psi)
Viscosity η [mPas] min. 0.3 0.3
max. 100* 100*
Dosage precision CV [%] <1 <1
Pulsation [%] 6 6
NPSHR-value [m] min. - -
max. 60 (150 *) 60 (150 *)
Ambient temperature [°C] min. 0 0
max. 40 40
max. 40 40
Legend: available
optional / on demand
– not available
* with supplementary modules
table 1 Technical data and performance parameters of the micro annular gear pumps mzr-6359 Ex and mzr-6359 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
4 Technical data subject to change without prior notice! Last update: October 2016
mzr-6359X2 Ex mzr-7259X2 Ex
Explosion-protection
Ex-certification
CE
II 2G IIC c T4 X
Temperature class T4
Ambient temperature 0 … +40 °C
Protection categories c, d (Ex-motor)
Technical data
Displacement volume [µl] 24 48
Measurements [mm] L x B x H 279 x 80 x 75 279 x 80 x 75
Internal volume [ml] 3.55 3.57
Rotor material partially stabilized ZrO2,
optional: tungsten carbide
Ni-based
Pump case material alloy C22 (2.4602),
optional: stainless steel
Bearing material sintered silicon carbide
(SSiC), Al
2O3
Static sealing FFPM, optional: FPM
Threaded fluid supply
1/8"NPT (lateral)
Coupling bellow coupling
Flow rate Q [ml/min] min. 0.024 0.048
[ml/min] max. 96 192
[l/h] max. 5,76 11.52
Max. system pressure [bar] inlet pressure+differential
pressure
80 (1160 psi)
60 (870 psi) for
pump made of 316L
80 (1160 psi)
60 (870 psi) for
pump made of 316L
Differential pressure range
viscosity 1 mPas 15 (218 psi) 20 (-cx) 290 psi
Viscosity η [mPas] min. 0.3 0.3
max. 100* 100*
Pulsation [%] 6 6
NPSHR-value [m] min. - Liquid temperature [°C] min. -5 -5
max. 60 (150 *) 60 (150 *)
Ambient temperature [°C] min. 0 0
max. 40 40
Storage temperature [°C] min. 0 0
max. 40 40
Legend: available
optional / on demand
– not available
* with supplementary modules
table 2 Technical data and performance parameters of the micro annular gear pumps mzr-6359X2 Ex and mzr-
6359X2 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 5
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.
Warning
The manufacturer of the pump cannot guarantee the fatigue strength of the
pump case due to the unknown load impact defined by different specification
parameters like type of liquid, concentration, temperature. The cause for this
restriction is a non predictable corrosion at the pump case like pitting, micro
cracking and surface erosion which causes a wall thickness reduction and an
increase of the notch effect. This could reduce the fatigue strength limit
considerably. Under a particularly aggressive environment only a time
dependent stability can be assumed. Because of the mentioned above the
manufacturer cannot give specifications concerning the number of possible
load alternations.

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
6 Technical data subject to change without prior notice! Last update: October 2016
1.4 Measurements
figure 1 Measurements of the micro annular gear pump mzr-6359 Ex and mzr-7259 Ex with lateral fluid connection
1/8" NPT

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 7
1.5 Flow charts
Liquid water Liquid methanol
0
20
40
60
80
100
120
0 5 10 15
Differential pressure [bar]
0
20
40
60
80
100
120
0
5 10 15
Liquid oil, 16 mPas Liquid oil, 100 mPas
0
20
40
60
80
100
120
0
5 10 15 20
Differential pressure [bar]
0
20
40
60
80
100
120
0
5 10 15 20
Differential pressure [bar]
figure 2 Flow charts of the mzr-6359 Ex and mzr-6359X2 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
8 Technical data subject to change without prior notice! Last update: October 2016
Liquid water Liquid methanol
0
50
100
150
200
250
0
5
10 15
20
Differential pressure [bar]
0
50
100
150
200
250
0 5 10 15 20
Liquid oil, 16 mPas Liquid oil, 100 mPas
0
50
100
150
200
250
0 10 20 30 40
Differential pressure [bar]
0
50
100
150
200
250
0 10 20 30 40
Differential pressure [bar]
figure 3 Flow charts of the mzr-7259 Ex and mzr-7259X2 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 9
1.6 Technical data of the Ex-motor
The micro annular gear pumps mzr-6359 Ex and mzr-7259 Ex are equipped
with an explosion-proof DC-motor. The parameters of the motor are described
in table 3. The speed of the motor can be controlled with the optional motion
controller S-HD-KL. One of the motor’s features is a highly dynamic behavior.
For operation it is recommended to use a power source of 24 V (with a power
rating of 5 A).
The motor of the pumps is corresponding to the applicable EC standards. The
confirmations according to EC 94/9/EG as well as of EC conformity are given.
Measurements
Length of motor casing 210 mm
Weight approx. 1,8 kg
General data
Type EXR-1.24HEDL-L10
Manufacturer Edelweiss Actuators Srl,
Via Padergnone 21
I-24050 Zanika BG
Italy
Distribution / Service Mattke Antriebstechnik
Leinenweberstraße 12
D-79108 Freiburg
Germany
Number of certificate TÜV-A 11ATEX0006X
Certification EN60079-0, EN60079-1, EU-
Richtlinie 94/9/EG, Anhang III
Ex-certification II 2G Ex d IIC T5 Gb
Installation place Ex-area zone 1, 2
Nominal voltage 24 V DC
Max. continuos current by
2 A
Max. continuos torque 75 mNm
Max. power 53 W
Max. dissipation 11 W
No load speed by 24 V 4700 rpm
Length of the cable 10 m
External compensation of potential wires:
4 mm² flexible
6 mm² single-wire
Protective class according EN60529 IP54
Operation temperature range -20 … +45 °C
table 3 Technical data Ex-motor for mzr-6359 Ex and mzr-7259 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
10 Technical data subject to change without prior notice! Last update: October 2016
Max. Peak current 1800 mA 2000 mA
Max. Continuos current 1500 mA 1800 mA
max. Acceleration 550 U/s² 550 U/s²
table 4 Programming current parameters for mzr-6359 Ex and mzr-7259 Ex
brown motor +
blue motor yellow/green screening / PE
red Vcc (5 VDC)
pink channel A neg.
grey channel A
yellow channel B neg.
green channel B
white channel I (index)
table 5 Pin configuration motor cable (10 Lead of cable) valid as of September 2012
Wire Function
white motor +
brown motor yellow/green screening / PE
blue SGND
pink channel A neg.
grey channel A
violet channel B neg.
red/blue channel I neg. (index)
pink/grey channel I (index)
table 6 Pin configuration motor cable (10 Lead of cable) valid until September 2012

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 11
4 x M8, 8 mm deep
PUR - Drag chain cable
Type S200-Length 5...10 m
Figure 4 Measurements of the motor (standard cable length 10 m)
The motor is delivered with a digital encoder type HEDL5540 with line driver
and 500 counts per revolution.
Encoder
Max. voltage Vcc 5 VDC ± 10 %
Counts per revolution and channel 500
Output signal at V
cc
= 5 VDC EIA standard RS422
Output current max. 20 mA
Phase shift Φ (nominal) 90°
Operating temperature range 0 ... +40°C
table 7 Technical data encoder

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
12 Technical data subject to change without prior notice! Last update: October 2016
1.7 Technical data of the altenativ brushless DC Ex-motor (X2 version)
The micro annular gear pumps mzr-6359X2 Ex and mzr-7259X2 Ex are
equipped with a alternativ explosion-proof brushless DC-motor. The
parameters of the motor are described in table 3. The speed of the motor can
be controlled with the internal motion controller. One of the motor’s features
is a highly dynamic behavior. For operation it is recommended to use a power
source of 24 V (with a power rating of 5 A).
The motor of the pumps is corresponding to the applicable EC standards. The
confirmations according to EC 94/9/EG as well as of EC conformity are given.
Measurements
Length of motor casing 285 mm
Weight approx. 2,3 kg (without cable)
General data
Type EXR-32.24-MC3-L10
Manufacturer Edelweiss Actuators Srl,
Via Padergnone 21
I-24050 Zanika BG
Italy
Distribution / Service Mattke Antriebstechnik
Leinenweberstraße 12
D-79108 Freiburg
Germany
Number of certificate TÜV-A 11ATEX0006X
Certification EN60079-0, EN60079-1, EU-
Richtlinie 94/9/EG, Anhang III
Ex-certification II 2G Ex d IIC T5 Gb
Installation place Ex-area zone 1, 2
Nominal voltage 24 V DC
Max. continuos current by
2 A
Max. continuos torque 85 mNm
Max. power 53 W
Max. dissipation 11 W
No load speed by 24 V 4200 rpm
Length of the cable 10 m
External compensation of potential wires:
4 mm² flexible
6 mm² single-wire
Protective class according EN60529 IP54
Operation temperature range -20 … +40 °C
table 8 Technical data Ex-motor for mzr-6359X2 Ex and mzr-7259X2 Ex

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 13
Max. Peak current 1700 mA 1700 mA
Max. Continuos current 1500 mA 1500 mA
max. Acceleration 500 U/s² 500 U/s²
table 9 Programming current parameters for mzr-6359X2 Ex and mzr-7259X2 Ex
brown 24 VDC 0,5 mm²
blue GND 0,5 mm²
yellow/green screening / PE 0,5 mm²
red 3 IN 0,14 mm²
white Fault out 0,14 mm²
pink n.c. 0,14 mm²
grey AGND 0,14 mm²
yellow RxD / IN CAN_L 0,14 mm²
brown ANIN 0,14 mm²
table 10 Pin configuration motor cable (12 Lead of cable)

1 General information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
14 Technical data subject to change without prior notice! Last update: October 2016
Figure 5 Measurements of the motor (standard cable length 10 m)

2 Safety instructions Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 15
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
The safety instructions listed in this operation manual are specially labeled. It
can cause danger for persons, if they are not complied with.
Danger symbol
Non-compliance poses danger for
persons.
High voltage symbol
Non-compliance poses danger of
electrical shock.
Ex-symbol
These instructions must be complied
with in full for explosion-protection.
The type plate mounted on the pump must be complied with and has to be
maintained in a clearly readable condition.
Please pay attention to items marked with the following symbols. Pump or
system damage is possible if these warnings are ignored.
Information plates attached directly to the pump head for example name of
the fluid inlet/outlet, sign with the direction of rotation must be observed and
preserved.
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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
16 Technical data subject to change without prior notice! Last update: October 2016
2.3 Safety-conscious work
The safety instructions listed in this operating manual, applicable national
regulations concerning accident prevention as well as internal work, operation
and safety regulations of the operator must be complied with.
2.4 Safety instructions for the operator
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.
Possible leaks of dangerous liquids 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.)
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.
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 7.
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 Safety instructions Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 17
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.
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.
Please operate the pump with a filter featuring 10 µm or smaller pores. It will
protect the pump.

3 Transport and intermediate storage Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
18 Technical data subject to change without prior notice! Last update: October 2016
3 Transport and intermediate 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 7)
− 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 of the micro annular gear pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 19
4 Description of the micro annular gear pump
4.1 Operating principle of the micro annular gear pump
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 6).
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 7). A homogenous flow is generated between the kidney-like
inlet and outlet.
internal
rotor
external
rotor
delivery sideinduction side
inlet outlet
figure 6 Principle of the micro annular gear pump
figure 7 Operating principle of the micro annular gear pump
In the case of rotary displacement pumps, the delivered amount of liquid may
be easily calculated form the displacement volume V
g
of the pump and the
number of revolutions of the rotor n. Displacement volume stands for the
volume of liquid that is moved within one revolution of the rotor. This
relationship is illustrated by the following formula:
The volumetric efficiency
η
Vol
shows the relationship between the actual and
the theoretical flow rate. The existing differences result from internal
movement of the liquid during the operation.

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Example: According to the formula mentioned above the mzr-7259 Ex pump
featuring a displacement volume of 48 µl delivers at 3000 rpm and with a
volumetric efficiency of 100% 144 ml/min.
The table 11 shows theoretical flow rate values depending on speed expressed
in ml/min and ml/h.
Speed [rpm] Q [ml/min] Q [ml/h] Q [ml/min] Q [ml/h]
500 12 720 24 1440
1000 24 1440 48 2880
2000 48 2880 96 5760
4000 96 57601 192 11520
table 11 Theoretical flow rate of the micro annular gear pumps
Pressure generated by the pump is determined by the configuration of the fluid
delivery system and results from both the hydraulic pressure and the hydraulic
resistance (tubing, narrow passes etc.). The volumetric efficiency of a pump
decreases when the differential pressure rises.
The viscosity of the manipulated liquid has an important impact on the
volumetric efficiency. The volumetric efficiency increases for higher viscosity
values because the internal leakage values go down.
Cavitation is an effect which, starting form a certain limit speed value, may
reduce the volumetric efficiency of a pump. In the case of highly viscous liquids
this limit speed value is lower. That happens because of the liquid-specific drop
of vapor pressure in the suction tube which leads to gas formation inside the
pump.
The particularity of the mzr-pumps is their highly precise construction, which
provides for both high operating pressures and a high dosage precision. The
gap between both rotors and between the rotors and the adjacent case parts
lies in the range of a few micrometers. This precision is the key factor enabling
to achieve volumetric efficiency close to 100%.

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4.2 Construction
The micro annular gear pump is composed of the pump head, the coupling
unit, the drive and the bracket (see figure 8).
Magnetic coupling
bracket
liquid inlet
suction side (S)
liquid outlet
pressure side (D)
double temperature
sensor (optional)
motor
micro annular gear pump head
figure 8 Design of the micro annular gear pump mzr-7259 Ex

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4.3 Construction materials
Wetted parts mzr-xx59-cy Ex mzr-xx59-cs Ex
Rotor materials partially stabilized ZrO2 partially stabilized ZrO2
Control plates Al2O3 ceramics Al2O3 ceramics
bearing material sintered silicon carbide (SSiC),
Al
2O3
ceramics
sintered silicon carbide (SSiC),
Al2O3 ceramics
shaft material sintered silicon carbide (SSiC) sintered silicon carbide (SSiC)
Static sealing material FFPM (Kalrez® Spectrum™ 6375) FFPM (Kalrez® Spectrum™ 6375)
table 12 Construction materials of the wetted parts, rotor material CVD-diamond coated tungsten carbide
Wetted parts mzr-xx59-hy Ex mzr-xx59-hs Ex
Rotor materials tungsten carbide Ni-based tungsten carbide Ni-based
Control plates tungsten carbide Ni-based tungsten carbide Ni-based
bearing material tungsten carbide Ni-based tungsten carbide Ni-based
shaft material tungsten carbide Ni-based tungsten carbide Ni-based
Static sealing material FFPM (Kalrez® Spectrum™ 6375) FKM
optional: FFPM (Kalrez
®
Spectrum™
6375)
table 13 Construction materials of the wetted parts, rotor material tungsten carbide
The resistance of the construction materials to the delivered liquids should be
verified by the operator for each individual application.
The material combinations and -cs and -cy can not be used for pumping water
or DI water.
Pumps handling non-lubricating liquids have shorter service lives.

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4.4 Liquid supply
mzr-xx59 Ex
Liquid inlet/outlet lateral 1/8" NPT internal thread
front 1/8" NPT internal thread
Tubing tube/hose OD 6 mm
table 14 Liquid supply
The micro annular gear pump head has an inscription on the front side. 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.
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.

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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.
− Thermal insulation module extends the operating temperature range of the
pump by protecting the motor from overheating
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.

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5.1 Heat insulation module
The heat insulation module enables to deliver liquids with a higher liquid
temperature range (see table 15). 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.
Pump type Liquid temperature range
mzr-6359/7259--cs Ex -20…+100 °C (-4…+212 °F)
mzr-6359/7259-cy Ex -20…+100 °C (-4…+212 °F)
mzr-6359/7259-hy Ex -20…+150 °C (-4…+302 °F)
table 15 Liquid temperature range with heat insulation module for mzr-6359 Ex, mzr-7259 Ex, mzr-6359X2 Ex and
mzr-7259X2 Ex
The switching-off temperature measured on the integrated thermocouple in
the pump, must be set at a maximum liquid temperature of 150 °C to 155 °C
(311 °F).
Earth the pump head additionally at the corresponding terminal clamp.
For operation of the micro annular gear pump with heat insulation module
the optional temperature supervision of the magnetic coupling is necessary
(see installation 4.2).
The pump fulfills the requirements for use in explosive areas in which
endangering explosion by substances of the explosion group of IIB can be
conditional (like e.g. hydrocarbons).
The pump carries the changed identification with the non insulating coupling
components and the higher temperature:
CE
II 2G c IIB T3 X
Description of the single symbols:
Equipment meets the requirements of the RL 94/9/EG
II Equipment of the group of equipment II („Non-mining industry“)
2G Equipment of the category 2, intended for the employment in
zone 1 (explosion endangerment by inflammable gases, steams or
nebulas), can be used also in zone 2
C As explosion prevention measure the ignition enclosure was
converted „constructional security“(c) according to DIN EN 13463-5.

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IIB The equipment fulfills the requirements for the employment within
highly combustible ranges, within which the explosion
endangerment can be due to materials of the explosion group IIB
(like e.g. hydrocarbons).
T3 The equipment fulfils the requirements to that temperature class T3.
X For the safe employment of the equipment within highly
combustible ranges special conditions are to be considered.
5.1.1 Operation of the micro annular gear pumps with heat insulation module in
different temperature classes
The micro annular gear pump with heat insulation module is certified for the
temperature class T3.
For the employment of the pump in environments with the Ex requirement
temperature class T1 and T2 no additional external measures are necessary for
the temperature monitoring.
For the employment of the pump in environments with the Ex requirement
temperature class T4 and T5 additional external measures are necessary for the
temperature monitoring.
The following general security requirements apply to the application:
Micro annular gear pumps are highly precise manufactured devices. No
contamination may reach the inside of the pump since this can damage the
pump. Make sure therefore, that all of the wetted parts are kept absolutely
free of dirt, dust or chips since this can affect the function of the pump.
Remove dust deposits regularly from the pump’s surface, drive and connection
pipes so as to prevent the formation of ignition sources. The cleaning interval
must be determined by the level of dust precipitation by the operator.
The fluid connections mounted to the pump have to be checked immediately
after putting into service and following to this in a six month cycle on
tightness and leakage.
Monitor the operating sound of the pump. If grinding noise occurs, switch off
the pump immediately. Check the pump for damage. Friction between
metallic parts can lead to overheating or formation of sparks.
Flow monitoring is also required for operation in hazardous areas to securely
prevent dry running. If the flow stops, the pump must be stopped
immediately.
If the pump is used in hazardous areas, a flow sensor must be installed directly
downstream of the pump. The flow sensor must not create a noticeable back
pressure in case of damage. If the delivery rate of the pump falls to 20% of
the theoretical flow rate, the pump must be stopped immediately.

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5.1.2 Monitoring of operation in the temperature class T4 and T5
For operation of the micro annular gear pump with heat insulation module in
environments with Ex-zone request of temperature class T4 and T5 additional
external measures are necessary for the monitoring.
Monitoring surface temperature of pump head
Temperature class T4 T5
Max. surface temperature 95°C (+203 °F) 60°C (+140 °F)
table 16 Maximum surface temperature
Monitoring liquid temperature on pressure side
Max. liquid temperature 105°C (+221 °F) 80°C (+176 °F)
table 17 Maximum liquid temperature
During operation in hazardous areas, particular attention must be paid to the
heat input in the liquid as well as to the increase of the pump’s surface
temperature. To avoid temperatures above a critical surface temperature one
of the following two measures has to be implemented. If the specified top
temperature is exceeded, the pump must stop immediately. For the
monitoring the compliance with standard DIN EN 13463-6 has to be
respected.

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5.1.3 Liquid temperature range for operation in temperature class T4 and T5
For operation of the micro annular gear pump in environments with Ex-zone
request of temperature class T4 and T5 the following reduced liquid
temperature ranges result.
Following medium temperature ranges apply with an ambient temperature of
0…+40 °C (32…+104 °F).
Pump type Liquid temperature range
mzr-6359/7259-cs Ex -20…+100 °C (-4…+212 °F)
mzr-6359/7259--cy Ex -20…+100 °C (-4…+212 °F)
mzr-6359/7259-hs Ex -20…+100 °C (-4…+212 °F)
mzr-6359/7259--hy Ex -20…+100 °C (-4…+212 °F)
table 18 Reduced liquid temperature range with heat insulation module for operation in temperature class T4
Pump type Liquid temperature range
mzr-6359/7259-cs Ex -20…+75 °C (-4…+167 °F)
mzr-6359/7259--cy Ex -20…+75 °C (-4…+167 °F)
mzr-6359/7259--hy Ex -20…+75 °C (-4…+167 °F)
table 19 Reduced liquid temperature range with heat insulation module for operation in temperature class T5
These limitations of the medium temperature range considered in compliance
with the permissible ambient temperature (see section 1.3).
5.1.4 Liquid temperature range for operation in temperature class T6
The employment of the micro annular gear pump with heat insulation module
in environments with the ex requirement temperature class T6 is not
permitted, because this leads to a restriction of the medium temperature on
60°C (140°F), which makes the employment of the heat insulation module
ineffective.

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5.1.5 Thermal element
The thermal element, integrated in the heat insulation module, is a double
thermal element with ex-protection according to ATEX approval EEx ia IIC T6.
Thermal element IEC 584.3 identification
Thermal element 2 piec es Type K (NiCr/Ni)
Temperature measuring range 0 to 400 °C (+32…+752 °F)
Diameter of the sensing device 1,5 mm
Material V4A (1.4541)
Diameter compensating circuit 4 mm
table 20 Technical data of the thermal element for mzr-6359 Ex, mzr-7259 Ex, mzr-6359X2 Ex and mzr-7259X2 Ex

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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.
You must check not only the type of protection of the pump, but also the
type of protection of all attached components. The nameplates of the
individual components are important. The type of protection for the
component with the lowest category always applies for the operation of all
components in hazardous areas.
6.2 Details place of operation
Pay attention to the place of operation, that you need an installation location
for service and enough room for maintenance. The pump should be installed
and reinstalled without problems.
The place of operation mustn't be wet or damp. Don't install the pump in
aggressive atmosphere!
6.3 Mounting of the micro annular gear pump
The micro annular gear pump is mounted on an angle support with M6
screws. The favored mounting position of the micro annular gear pump is
horizontal. In vertical operation should drive under the pump head mounted to
the pump head completely filled.
When mounting the motor, insulating elements must not be inserted between
the pump head and the motor. The connecting screws between pump and
motor must be made out of electrically conductive material
(e.g. stainless steel).

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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.
Never install a pump in a small installation location without sufficient
ventilation as the motor will be poorly cooled and can overheat.
6.4 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.
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.
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.

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6.5 Electrical Connections
The electrical connection of the motors must be implemented according to
VDE directives by skilled personnel. The operation manual supplied with the
motors must also be complied with.
Carry out all work on the motor only in no power supply state! Ensure that
there is no supply voltage to the motor
!
Carry out the electrical connection only after the enclosed wiring diagram!
The sticker at the motor indicates the limiting values of the voltage for the
motor!
Earth the motor using the terminal provided. Earth the pump head with
heating module additionally at the corresponding terminal clamp.
6.6 Assembly instruction for tubing and accessories
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 21). First manually, then
tightened with ½ to ¾ wrench turns.

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Clean the internal and external
screw threads leaving no
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 21 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.
Dry running of a micro annular gear pump can damage bearings and dynamic
seals especially. A short term dry running at the start-
cause problems.
Please check that all pipes, fittings and screw fittings are tight.
If there is leakage on the suction side it is possible that air penetrates into the
pump. In this case priming will be difficult. At the discharge side the liquid
comes out of the pump. Dry running causes the pump to heat up.

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If the pump will be operated within an explosion proof area a check valve
right must be integrated in the pressure line behind the liquid outlet port of
the pump. The check valve has to prevent that the pump empties during shutdown time.
Behind the discharge port the discharge pipe should be installed ascending.
In case the pump operates against a closed system a safety valve has to be
installed in the discharge pipe to release pressure. In this case the return flow
pipe must go back to the reservoir and not directly to the suction line.
6.7 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.
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.
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.
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.

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6.8 Requirements for motor controller
To operate a micro annular gear pumps mzr-6359 Ex and mzr-7259 Ex a
motion controller is necessary.
The alternative motor with integrated motor control requires no separate
external motion controller. We recommend connecting a terminal box S-G05
(see chapter 6.10).
Motion controller
Power supply UB 24 V
Max. continuous current I
dauer
1800 mA
Velocity range 1...4700 rpm
Operation modes IxR, Encoder
Encoder
Max. voltage Vcc 5 ± 10 % VDC
Counts per revolution and
channel
500 counts/turn
Output signal at V
cc
= 5 VDC EIA Standard RS422
Output current max. 20 mA
Phase shift Φ (nominal) 90°
Table 22 Technical data motor controller mzr-6359 Ex and mzr-7259 Ex
The mounting place of the motor controller has to be outside of the Ex-area.
Check for correct polarity. False connection may cause severe malfunction or
will even destroy the electronic of encoder or motion controller.
For operation of the motor controller current overload has to be avoided,
because the motor or the internal encoder will be damaged otherwise.
Optionally the micro annular gear pumps can be delivered with the controller
S-HD-KL together with connection board.
To operate a micro annular gear pump only an authorised control module of
HNP Mikrosysteme may be used.

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6.9 Operation with external motion controller S-HD-KL
The mounting place of the motor controller S-HD-KL has to be outside of the
Ex-area.
The controller S-HD-KL controls the number of revolutions to achieve a
constant flow rate or positions the motor for precise dosage volumes. Values
can be set with the help of a potentiometer or with the external control signal
0-10 V. Second a serial interface allows the control of precise feeding and
dosing tasks by an external PC. Included in the delivery volume are diskettes
with a Windows
®
based software. The software enables the operator to
manage dosing tasks by defining dosing data. A zero modem cable is included
in the delivery volume to connect the pump controller S-HD-KL with a PC.
Controller S-HD-KL
Type of control unit 4-Q servo amplifier
Power supply UB 12 - 30 V
Residual ripple ≤ 2 %
Max. continuous output current I
continuous
1800*) mA
Max. peak output current I
max
2000*) mA
Input No. 1 input resistance 5 kΩ
Nominal analog speed voltage range ± 10 V
Nominal digital speed PWM signal low 0...0.5 / high 4...30 V
frequency range 100...2000 Hz
no error switched to GND
programmed as input low 0...0.5 / high 3.5... UB V
Input No. 3, 4, 5 TTL - logic level low 0...0.5 / high 3.5...30 V
PLC - logic level low 0...7 / high 12.5...30 V
*) Values limited in the control unit with corresponding software
table 23 Technical data controller S-HD-KL

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motor cable
pump
mzr-7259 Ex
speed regulation
serial interface of PC
external voltage supply
24 V DC / 2.5 A
Status LED
+
-
switch S1
Figure 9 Connection schema controller S-HD-KL
The connection board is helpful for bringing into service of the micro annular
gear pump easily. It comprises the following interfaces:
− the possibility to connect the voltage supply to the delivered DIN socket
− the possibility to connect the voltage supply with screw clamps
− a 10-pole connector assembly for the motor cable
− speed set with potentiometer
− analog voltage signal 0-10 V for speed control at the screw clamps
− 9-pole connection plug for the RS-232 interface
− error output with status LED, programmable also as trigger input with screw
connections
− tumbler switch S1 for the connection of digital input No. 3 of the motor
control unit
− screw clamps for the connection of digital inputs No. 3, 4, 5 of the motor
control unit
Initial operation procedure
1. Connect the motor cable with the board S-HD-KL. Colour settings of wires
see table 24.
Pin controller S-HD-KL Function
white motor +
brown motor -
red Vcc (5 VDC)
blue SGND
pink channel A neg.
grey channel A
black channel B
red/blue channel I neg. (index) (not used)
pink/grey channel I (index) (not used)
table 24 Pin configuration motor cable adapter (10 Lead of cable) from motor to controller S-HD-KL

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2. Connect the RS-232 port of the MCDC3006 with a free serial interface of a
PC. For this purpose use the delivered 9-pole null-modem cable.
3. Put the potentiometer of the S-HD-KL control unit to zero position by
turning it clockwise to the limit stop.
4. Connect the voltage supply 24 VDC. This can be done with the integrated
DIN connector or alternatively the 2-pole screw clamp (24 V = »+«;
GND = »-«). Pay attention to the correct polarity.
Check for correct polarity. False connecting may cause severe malfunction or
even destroy the electronic of the control unit.
The mounting place of the motion controller is intended for use outside of
the hazardous areas only.
Explanation:
− It is possible to adjust speed of the micro annular gear pump with the
potentiometer without the need to connect the serial interface.
− With the analog nominal value input (connection clamps »AnIN« and
»GND«) it is possible to adjust speed of the pump with a standard signal
0-10°V. For this purpose it is necessary to plug the jumper on the S-HD-KL
control unit from the »AnalogPoti« to the »AnalogExtern«. The serial
interface does not need to be connected.
− In case of an overcurrent error the green status LED on the S-HD-KL control
unit turns red
− The standard programs memorized in the motor control unit may be started
with the tumbler switch S1.
5. Install the software »Motion Manager« described in the next chapter.

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6.10 Connection of the micro annular gear pump with S-G05
In order to operate the pump a supplementary source of 24 VDC will be
required. The ampacity of the voltage source should amount to around 4 A for
the micro annular pumps mzr-6359X2 Ex and mzr-7259X2 Ex.
The mounting place of the motion controller is intended for use outside of
the hazardous areas only.
The micro annular gear pump with alternativ brushless DC Ex-motor is
connected via the Terminal Box S-G05. This enables an easy startup of the
pump due to:
− the possibility to connect the voltage supply with the delivered plug
connector J1
− alternative voltage supply via a DIN connector conform with DIN 45323
− separable pump connection "mzr-pump"
− speed set via potentiometer
− analog voltage input 0-10 V and 0 (4)-20 mA for speed control
− change of speed setting mode with a DIP-switch
− 9-pole connection plug for the RS-232 interface
− error output programmable also as trigger input or frequency output
− digital input with a screw connection
− possibility of installation on a 35 mm top hat rail
79
90
100
100
69
92
90
69
79
4x Ø3,2
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4).. .20 m A
0... 10 V
Poti
Mode
Speed
Stat us
Ready: green
Fault: red
9
Dig. Input
TxD
16
15 RxD13
Analo g GND
F
ault Out 14
An al
og In. 12
24
VDC
10
11
GND
Terminal Box S-G05
HNP Mikrosyst eme GmbH
RS-232 Power I n
24 VDC
0
1 24 VDC / 4A
Dig
. I
nput 8
7
F
ault
5 An alog In.
GND 6
n.c. 4
GND 2
3 10 V out
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4).. .20 m A
0... 10 V
Poti
Mode
Speed Stat us
Ready: green
Fault: red
D
ig.
Input
16 RxD
Ana
log GND
141210
GND
Terminal Box S-G05
HNP Mikrosyst eme GmbH
RS-232 Power I n
24 VDC
24 VDC / 4A
Fault
Anal og In.
10 V o ut
TxD
Fau
lt Out
Anal
og In.
2
4 V
DC
151311
9
1
753
D
ig
. I
nput
GND
n.c.
GND 2
864
0
mzr-pumpJ2power / signal
J1
26
47
18
2x Ø4,5
figure 10 Measurements of the Terminal Box S-G05

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
40 Technical data subject to change without prior notice! Last update: October 2016
Status LED
Potentiometer
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed Status
Ready: green
Fault: red
9
Di
g. I
npu
t
TxD
16
15
RxD
13
An
alog
GN
D
Fault Out 14
Analog In. 12
2
4 V
DC
10
11 GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
0
1 24 VDC / 4A
Dig. Input 8 7 Fault
5 Analog In.GND 6
n.
c.
4
GND 2
3 10 V o ut
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed Status
Ready: green
Fault: red
D
ig.
In
put
16 RxD
Analog GND14
12
10
GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
24 VDC / 4A
Fault
Analog I n.
10 V o ut
TxD
Fau
lt
Out
Analog In.
2
4 V
DC
151311
9
1
753
Dig. In put
GND
n.c.
GND 2
864
0
mzr-pumpJ2power / s ignal
J1
–
+
21
mot or c able ext ernal voltage
24 V DC
serial
interface
of P C
alternative
power supply
24 V DC
figure 11 Connection of the micro annular gear pump to the power supply
Connector J1
Pin
Function Labeling
Terminal Box
1 Voltage supply 24 VDC / 4 A
2 Ground GND
3 10 V output voltage 10 V Out
4 not used n.c.
6 Ground GND
7 Fault output Fault
8 Digital Input Dig. Input
table 25 Connector J1 "power / signal" pin assignment of Terminal Box S-G05
Connnector J2
Pin
Function Wire / Cable cross
section
Labeling
Terminal Box
9 Digital Input red / 0,14 mm² Dig. Input
11 Ground blue / 0,5 mm² GND
12 Analog input brown / 0,14 mm² Analog In
13 Ground analog input grey / 0,14 mm² Analog GND
14 Fault output white / 0,14 mm² Fault Out
RS-232 interface signal reception
16 RS-232 interface signal
transmission
green / 0,14 mm² TxD
table 26 Connector J2 " mzr-pump" pin assignment configuration between the motor and terminal box S-G05

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 41
Installation of the cable wires
− tool: screwdriver blade 2.5 x 0.4 mm
− open the spring clamp with the screwdriver through the side
slot
− cable in cable opening place (cable can be used with or without
ferrule)
− remove the screwdriver
figure 12 Installation of cable wires in the connectors
LED Status Definition
green Power supply to the controller is active, no error
red Motor error (current limitation or pump blocked)
table 27 LED for status indication
The operating speed of the micro annular gear pump may be set with:
− the potentiometer of the Terminal Box S-G05
− an external voltage signal 0-10 V
− an external, analog current signal 0 (4)-20 mA (without electrical isolation)
− an external potentiometer or
− the RS-232 interface
Individual start up procedures are described in the following points.
6.10.1 Startup with potentiometer
1. Connect the drive with the eight colored wires to the terminal box S-G05.
The colors of the corresponding wire connections are described in the
table 26.
2. Bring the potentiometer knob to null position by turning it clockwise to the
limit stop.
3. Put the DIP-switch to the »Poti« position.
4. Connect the 24 VDC voltage supply to the terminal or to the DIN
connector.
Make sure that the polarity of the supplied direct current is correct, otherwise
electronics will be damaged.
5. Provide for a steady liquid supply to the pump in order to avoid dry
operation.
6. The pump may now be put into operation by turning on the potentiometer
knob.

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
42 Technical data subject to change without prior notice! Last update: October 2016
Remarks:
− You may adjust speed of the micro annular gear pump without the need to
connect it to the serial interface.
− In case error occurs for example due to motor overload - the green status
LED on the Terminal Box S-G05 will turn red.
6.10.2 Startup with external 0-10 V signal
1. Connect the drive with the eight colored wires to the terminal box S-G05.
The colors of the corresponding wire connections are described in the
table 26.
2. Bring the potentiometer knob to the null position by turning it clockwise to
the limit stop.
3. Put the DIP-switch to »0…10 V« position.
4. Connect an external 0-10 V voltage supply to the terminal clamps
»AnalogIn« and »GND« to the S-G05. (see figure 13)
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed
Status
Ready: green
Fault: red
9 Dig. Input
TxD 16 15 RxD
13 An alog GNDFault Out 14
Analog In. 12
24 VDC 10
11 GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
0
1 24 VDC / 4A
Dig. Input 8 7 Fault
5
Analog In.
G
ND 6
n.c. 4
GND 2
3
10 V out
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed
Status
Ready: green
Fault: red
Dig. Input
16 RxD
Analog GND14
12
10
GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
24 VDC / 4A
Fault
A
nalog In.
1
0 V out
TxD
Fault Out
Ana log In.
24 VDC
151311
91753
D
ig. Input
G
ND n.c.
GND 2
864
0
mzr-pumpJ2power / s ignal
J1
+ –
– +
2165
serial
interface
of P C
alternative
power supply
24 V DC
mot or c able
st andard s ignal
0 -10 V
exter nal v oltage
24 V DC
figure 13 Startup with an external 0-10 V voltage signal
5. Provide for a steady liquid supply to the pump in order to avoid dry
operation of the device.
6. Connect the 24 VDC voltage supply to the terminal or to the DIN
connector.

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 43
Make sure that the polarity of the supplied direct current is correct, otherwise
electronics will be damaged.
The input circuit at the analog input is layed out as a differential amplifier. If
the analog input is “open” there is already a voltage of 2 V. That means in
this case that the motor would be turning at a speed of about 2000 rpm. In
order to set 0 rpm the input must be connected over a low ohm resistor to
the analog ground (AGND) or connected to the AGND-voltage level.
7. The micro annular gear pump may now be put into operation by increasing
the external voltage signal. A voltage signal of 0 V corresponds to 0 rpm
and 10 V to the maximal programmed speed (see chapter 1.7).
Remarks:
− You may adjust speed of the micro annular gear pump without the need to
connect it to the serial interface.
− In case error occurs for example due to the motor overload - the green
status LED on the terminal Box S-G05 will turn red.
6.10.3 Startup with an external 0(4)-20 mA current signal
The conversion is done internally without electrical isolation. A potential
separation is possible only with a external transformer module.
1. Connect the drive with the eight colored wires to the terminal box S-G05.
The colors of the corresponding wire connections are described in the
table 26.
2. Bring the potentiometer knob to the zero position by turning it clockwise
to the limit stop.
3. Put the DIP-switch to »0(4)…20 mA« position.
4. Connect the external current source to the screw clamps »AnalogIn« and
»GND« to the S-G05. (see figure 14).

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
44 Technical data subject to change without prior notice! Last update: October 2016
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed
Status
Ready: green
Fault: red
9
Dig.
Input
Tx
D 16
15
RxD
13 A
nalog
GND
Fault
Out 1
4
Analog In. 12
24 V
DC 10
11 GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
0
1 24 V DC / 4A
Di
g.
Inp
ut
8
7
Fau
lt
5 An alog In.GND 6
n.
c.
4
GND 2
3
1
0 V
out
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed Status
Ready: green
Fault: red
Dig
. Inp
ut
16 RxD
Ana
log GND
141210
GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
24 VDC / 4A
FaultAna
log In.
1
0 V
out
TxD
Fault
Out
Analog In.
24 VD
C
151311
91753
D
i
g.
Inp
ut
GND
n.c
.
GND 2
864
0
mzr-pumpJ2power / s ignal
J1
+ –
– +
2165
serial
interface
of P C
alternative
power supply
24 V DC
mot or c able
st andard s ignal
0 (4)- 20 mA
exter nal v oltage
24 V DC
figure 14 Operation via an external 0 (4)-20 mA voltage
5. Provide for a sufficient liquid supply to the pump in order to avoid dry
operation of the device.
6. Connect the 24 VDC voltage supply to the screw clamp terminal or to the
DIN connector.
Make sure that the polarity of the supplied direct current is correct, otherwise
electronics may be damaged.
7. The micro annular gear pump may now be put into operation by increasing
the external current signal. 0 mA corresponds to 0 rpm and 20 mA to the
maximal programmed speed (see chapter 1.7).
Remarks:
− For operation with the signal 4…20 mA an offset of about 2.1 V should be
set by entering the command MAV2170. In order to set the nominal values
the micro annular gear pump must be put into operation via the RS-232
interface and start with the » Motion Manager « software. Save the
command in the EEPROM with the command EEPSAV (see chapter 8).
− Speed of the micro annular gear pump may be set by sending an external
voltage signal without the need to connect the pump to the serial interface.
− In case error occurs for example due to a motor overload - the green status
LED on the Terminal Box S-G05 will extinguish and a red one will light up.

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 45
6.10.4 Startup with external potentiometer
1. Connect the drive with the eight colored wires to the terminal box S-G05.
The colors of the corresponding wire connections are described in the
table 26.
2. Bring the internal potentiometer knob to the null position by turning it
clockwise to the limit stop.
3. Put the DIP-switch to »0…10 V« position.
4. Connect an external 0-10 V voltage supply to the terminal clamps
»AnalogIn«, »10 V« and »GND« to the S-G05.(see figure 13)
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed Status
Ready: green
Fault: red
9
Dig. Input
T
xD 16
1
5 RxD
13 Analog GNDFault Out 14
A nalog In. 12
2
4 VDC 10
11 GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
0
1
24 V DC / 4A
Dig. Input 8 7 Fault
5 Ana log In.GND 6
n.c. 4GND 2
3
10 V out
ON
1 2 3 4
ON
1 2 3 4
ON
1 2 3 4
0(4)...20 mA
0...10 V
Poti
Mode
Speed Status
Ready: green
Fault: red
D
ig. Input
16 RxD
Analog GND14
12
1
0
GND
Termi n al Bo x S - G 05
HNP M ikrosy stem e Gm bH
RS-232 Power In
24 VDC
2
4 VDC / 4 A
Fault
Analog In.
1
0 V out
TxD
Fault Out
A nalog In.
2
4 VDC
151311
91753
D
ig. Input
GND
n.c.
G
ND
286
4
0
mzr-pumpJ2power / s ignal
J1
10 V
Potentiometer
exter nal
GND
Analog IN
– +
21653
mot or c able
exter nal v oltage
24 V DC
serial
interface
of P C
alternative
power supply
24 V DC
figure 15 Startup with an external potentiometer
5. Provide for a steady liquid supply to the pump in order to avoid dry
operation of the device.
6. Connect the 24 VDC voltage supply to the terminal or to the DIN
connector.
Make sure that the polarity of the supplied direct current is correct, otherwise
electronics will be damaged.

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
46 Technical data subject to change without prior notice! Last update: October 2016
The input circuit at the analog input is layed out as a differential amplifier. If
the analog input is “open” there is already a voltage of 2 V. That means in
this case that the motor would be turning at a speed of about 2000 rpm. In
order to set 0 rpm the input must be connected over a low ohm resistor to
the analog ground (AGND) or connected to the AGND-voltage level.
7. The micro annular gear pump may now be put into operation by increasing
the external voltage signal. A voltage signal of 0 V corresponds to 0 rpm
and 10 V to the maximal programmed speed (see chapter 1.7).
Remarks:
− You may adjust speed of the micro annular gear pump without the need to
connect it to the serial interface.
− In case error occurs for example due to the motor overload - the green
status LED on the terminal Box S-G05 will turn red.
6.10.5 Startup with the RS-232 interface
1. Connect the drive with the eight colored wires to the S-G05. The colors of
the corresponding wire connections are in the table 26.
2. In order to prevent uncontrolled startup of the pump, bring the
potentiometer knob to the null position by turning it clockwise to the limit
stop.
3. Put the DIP-switch to »Poti« position.
4. Connect the RS-232 interface of the Terminal Box S-G05 with a free serial
interface of a PC. Use for that the delivered 9-pole null-modem cable.
5. Now install the delivered software as described in the chapter 8.
6. Connect the 24 VDC voltage supply to the terminal or to the DIN
connector.
7. Provide for a steady liquid supply to the pump in order to avoid dry
operation of the device.
8. The micro annular gear pump may now be put into operation with the
available software (operating mode RS-232 see chapter 8).
Remarks:
− In case error occurs for example due to the motor overload - the green error
status LED on the Terminal Box S-G05 will turn red.

6 System integration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 47
6.11 Installation of the software »Motion Manager«
The program »Motion Manager« provides easy operation and configuration of
the motor together with an online graphic performance analysis tool. For
installation a PC with Windows XP
®
or Windows 7® is required.
Install the software »Motion Manager« which is included in the delivery CD.
After successful installation start the program »Motion Manager« in the file
»Faulhaber Motoren« via Windows
®
start menu.
If the CD of the »Motion Manager« are not delivered, because the software
»mzr-pump controller« was included instead, you can download the software
from the website http://www.hnp-mikrosysteme.de
. The latest version can be
downloaded in English or German under Downloads.
To program a micro annular gear pump motor and controller have to be put
into operation. Both units have to be connected with the zero-modem cable.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
48 Technical data subject to change without prior notice! Last update: October 2016
7 Startup/shutdown of a mzr-pump
7.1 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 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?
7.2 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).
If the pump is used in hazardous areas, it must not run dry. The pump and all
pipes must be primed and filled with liquid before starting.
7.3 Re-start after dry run
After a short dry run (it is assumed that the pump is not yet damaged), you
must ensure that the pump has cooled down to a temperature below its
maximally allowed surface temperature. The pump and the pipes must be
completely primed and filled.
Re-starting is prohibited after a longer dry run. The pump must be dismounted
to check for damage and any damaged parts replaced. The pump may only be
operated again after complete priming and filling and the restoration of the
earth.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 49
7.4 Operation of the micro annular gear pumps without heat insulation module in
different temperature classes
The micro annular gear pump without heat insulation module is certified for
the temperature class T4.
For operation of the micro annular gear pumps in surroundings with Ex-zone
request of temperature class T1-T3 and T4 no additional temperature measure
is necessary for monitoring.
To the employment the following general safety requirements apply:
Micro annular gear pumps are highly precise manufactured devices. No
contamination may reach the inside of the pump since this can damage the
pump. Make sure therefore, that all of the wetted parts are kept absolutely
free of dirt, dust or chips since this can affect the function of the pump.
Flow monitoring is also required for operation in hazardous areas to securely
prevent dry running. If the flow stops, the pump must be stopped
immediately.
Remove dust deposits regularly from the pump’s surface, drive and connection
pipes so as to prevent the formation of ignition sources. The cleaning interval
must be determined by the level of dust precipitation by the operator.
The fluid connections mounted to the pump have to be checked immediately
after putting into service and following to this in a six month cycle on
tightness and leakage.
Monitor the operating sound of the pump. If grinding noise occurs, switch off
the pump immediately. Check the pump for damage. Friction between
metallic parts can lead to overheating or formation of sparks.
If the pump is used in hazardous areas, a flow sensor must be installed directly
downstream of the pump. The flow sensor must not create a noticeable back
pressure in case of damage. If the delivery rate of the pump falls to 20% of
the theoretical flow rate, the pump must be stopped immediately.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
50 Technical data subject to change without prior notice! Last update: October 2016
7.5 Monitoring of operation in the temperature class T5, T6
For operation of the micro annular gear pump in environments with Ex-zone
request of temperature class T5 and T6 additional external measures are
necessary for the monitoring.
Monitoring surface temperature of pump head
Temperature class T5 T6
Max. surface temperature 60°C 45°C
table 28 Maximum surface temperature
Monitoring liquid temperature on pressure side
Max. liquid temperature 80°C 70°C
table 29 Maximum liquid temperature
During operation in hazardous areas, particular attention must be paid to the
heat input in the liquid as well as to the increase of the pump’s surface
temperature. To avoid temperatures above a critical surface temperature one
of the following two measures has to be implemented. If the specified top
temperature is exceeded, the pump must stop immediately. For the
monitoring the compliance with standard DIN EN 13463-6 has to be
respected.
7.6 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 30 and
table 31). 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 GmbH.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 51
Selection of flushing
liquid (FL)
figure 16 Diagram of the flushing procedure
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.
Please make sure that the pump components and particularly O-rings and
sealing are resistant to the employed flushing liquid. (see table 31).
The flushing liquid (solvent) and the recommended duration of the flushing
procedure depend on the delivered liquid (see table 30
). 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 31 (Resistance of the sealing material)
see table 30 (Selection of the flushing liquid)
see table 30 (Selection of the flushing liquid)

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
52 Technical data subject to change without prior notice! Last update: October 2016
Nature of the delivered 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
Neutral water/y solutions
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
11 Paints, varnishes, adhesives 50-60 not specified - for further information
please contact HNP Mikrosysteme.
table 30 Selection of the flushing liquid (solvent) and the duration of the flushing procedure depending on the
delivered liquid.
Please make sure that the pump components and particularly O-rings and
sealing are resistant to the employed flushing liquid (see table 31).
The material combinations and -cs and -cy can not be flushed with water or
DI-water.
acetone 3 0 0
benzene 1 3 0
benzyl alcohol 0 2 0
butanol 1 0 0
dimethyl sulfoxide (DMSO)
ethanol 0 0 0
isopropanol 0 0 0
methanol 2 0 0
methylethylketone (MEK) 3 1 0
toluene 2 3 0
water 0 0 0
xylene 2 3 0
benzine/petroleum ether 0 3 0
Legend: 0 ... good suitability 1 ... suitability 2 ... conditional suitability 3 ... labile - ... not specified
table 31 Resistance of the sealing materials depending on the flushing liquid (solvent)

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 53
7.7 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 7.6.
− After the flushing procedure decrease speed of the pump to 0 rpm
− Fill the pump with a suitable conservation liquid (see chapter 7.7.1)
− Remove the pump from the system (see chapter 7.7.2)
By proceeding as shown in the diagram (see figure 17) you may prepare the
pump for a longer standstill.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
54 Technical data subject to change without prior notice! Last update: October 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 17 Diagram of the shutdown procedure
see table 30
see table 31
see table 32
see table 31

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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7.7.1 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 7.6), be filled in with a suitable
conservation liquid.
The conservation liquid may be selected from the table 32 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 18 presents a diagram of conservation agent selection.
Remark: This diagram is repeated as a part of the figure 17 (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 32.
Selection of conservation
liquid (CL)
Is the CL
compatible
with pump
Is the CL
compatible
with the
last FL ?
figure 18 Diagram - selection of conservation liquid (CL)
see table 31 (Resistance of the sealing material)
see table 32 (Selection of the conservation agent)

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
56 Technical data subject to change without prior notice! Last update: October 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
DI-water + + - - + + solvent for many organic and mineral liquids
fine mechanics
- - + + + + 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 32 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.
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.
7.7.2 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 7.6 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.

7 Startup/shutdown of a mzr-pump Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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7.8 Trouble 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 30 and
table 31) 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 18) and send the pump back to the
manufacturer for inspection.
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.
7.9 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.

8 Software »Motion Manager« Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
58 Technical data subject to change without prior notice! Last update: October 2016
8 Software »Motion Manager«
For the programming of the micro annular gear pump the software » Motion
Manager « must be installed (see section 6.8). The connection from controller
to PC with the delivered zero modem cable has to be established and the
micro annular gear pump have been taken into service.
8.1 Command mode
With software »Motion Manager« commands can be entered and sent directly
to the motion controller to change the settings of the controller or execute
movements.
Figure 19 Program »Motion Manager« for direct control commands for the micro annular gear pump
The entry of command lines takes place in the field »Enter command:«. When
the command entry is completed this must be confirmed by pressing the
button »Send« to send. The commands can alternatively be written in capital
or small letters. Surplus blanks are ignored by the motion controller.

8 Software »Motion Manager« Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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Example for feeding
Command Description
SOR0
V1000
V0
V3000
SOR1
Operation mode »RS-232«, Source For Velocity - set velocity with
RS-232 command
Rotate with 1000 rpm
(equivalent flow for mzr-6359 Ex = 24 ml/min,
equivalent flow for mzr-7259 Ex = 48 ml/min)
Stop pump rotation (speed 0 rpm)
Rotate with 3000 rpm
(equivalent flow for mzr-6359 Ex = 72 ml/min)
(equivalent flow for mzr-7259 Ex = 144 ml/min)
Operation mode »analogue input«, Source For Velocity - set
velocity with potentiometer setting on the connection panel
Example for dosage
Command Description
SOR0
LR30000
M
LR60000
M
SOR1
Operation mode »RS-232«, Source For Velocity - set velocity with
RS-232 command
Load relative position at 30000 to the pump
30000 = 10 revolution (equivalent quantity mzr-6359 Ex ≈
120 µl, mzr-7259 Ex ≈ 240 µl)
(explanation: 3000 steps = 1 revolution)
Start positioning pump
Load relative position at 60000 to the pump
60000 = 5 revolution, (equivalent quantity mzr-6359 Ex ≈ 240 µl
mzr-7259 Ex ≈ 480 µl)
Start positioning pump
Operation mode »analogue input«, Source For Velocity - set
velocity with potentiometer setting on the connection panel
To use the »Motion Manager« software please also refer to the online help
function of the program.

8 Software »Motion Manager« Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
60 Technical data subject to change without prior notice! Last update: October 2016
8.2 Programming of motion controller
For dedicated applications (e.g. communication with process control, or dosage
parameters according to sensor input) the motion controller S-HD-KL can be
programmed with a simple program language. The program files consist of
ASCII-commands. The filenames can be saved with the extension »mcl«
(motion controller language). All motor settings can be set via the RS-232 port
(e.g. maximum velocity, acceleration, relative position in position control mode,
current parameter continuos and peak and the digital filter parameter for the
dynamic performance). All settings and files can be stored to the onboard
memory. Depending on the operation mode the motion controller therefore
can run stand-alone.
The delivery volume comprises a disk with sample mcl-files which can be
downloaded to the controller and stored permanently to the EEPROM.
8.3 Transfer of mcl-files to motor controller
mcl-files can be loaded over File – Open in the file-editor-screen.
Figure 20 Menu File – Open
The required mcl file may be selected and loaded from the file selection
window (see figure 21).

8 Software »Motion Manager« Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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figure 21 File selection window
Open the window Terminal – Transfer configuration files for file transfer to the
motion controller.
Figure 22 Transfer of mcl-file as Transfer configuration files

8 Software »Motion Manager« Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
62 Technical data subject to change without prior notice! Last update: October 2016
When a window appears with the enquiry if the mcl files should be transferred
to the »Motion-Controller«, answer by clicking on the »Yes« button.
In order to save the configuration and the programmed operation files in the
EEPROM, please confirm the dialogue window with »OK« (see figure 23). With
this confirmation the program will be saved in the memory with a resident
status and will be available for future operation.
figure 23 Storage confirmation

9 Accessories for microfluidic systems Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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9 Accessories for microfluidic systems
The accessory range for the liquid delivery systems of HNP Mikrosysteme
comprises complementary equipment such as hoses, tubes, fluid fittings, filters
and non-return valves that are best adapted to your micro annular gear pump.
We will eagerly share our long date experience as far as component selection is
concerned.
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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
64 Technical data subject to change without prior notice! Last update: October 2016
11 Problems and their removal
Disturbance Cause Solution
1 The pump does not work.
2 The pump does not pump the
liquid.
No liquid in the primary tank Fill the recipient/tank with liquid.
Presence of air or gas in the pump The pump cannot run dry against the system
pressure. Fill in the pump at no pressure or at
reduced system pressure.
Malfunction of the liquid supply
components (such as in the delivery tube,
the needle or external non-return valve)
Check the components for possible
disturbances to be eliminated. Cleanse the
accessories where needed.
Failure of the electric installation Check the electric installation for the correct
cable configuration, loose contacts, etc.
The pump did not receive the start signal
or start conditions are not fulfilled.
Check if the start condition have been fulfilled
start signals (software control, PLC, start signal)
and the programs.
Motor disturbance: the red error LED is on. Check the failure condition of the motor
control with the Motion Manager software.
3 The pump does not start to
operate.
The pump does not take in the liquid. The tubing on the induction side is too long or
has a too small internal diameter (a too low
NPSHA value).
The tubing or the fluid connection on the
induction (suction) side are not tight. Please
check the intake connection and the tubing.
Air bubbles in the fluid system
If the viscosity of the liquid is too high, apply
pressure on the suction side.
Check the pressure exerted on the primary
An external non-return valve does not open.
Check the non-return valves.
Submit the non-return valve to a higher
pressure, so that the pump may fill in.
4 The motor turns, but the pump
does not operate.
No liquid in the pump Fill the pump with liquid.
Air bubbles in the liquid supply system
(tubing, valves, ...)
Fill the pump and the liquid supply system with
liquid.
The non-return valve does not open.
Rinse the non-return valve.
Blocked delivery tubing or needle Cleansing, flushing or exchange of the delivery
tubing or dosage needle
The coupling between the motor and the
Return the pump to the manufacturer.
The pump shaft is broken. Return the pump to the manufacturer.
5 The pump is filled with liquid, but
does not pump it.
Error indicator (the red status LED on the
terminal box is on and the motor control
has set the error output).
Check the motor error status with the Motion
Manager software (command GFS). Try to
liberate the pump by making it operate for 1 s
in a reverse direction with -1000 rpm.
Adapt the motor current to the control.
Contact the manufacturer of the pump.
Presence of particles in the delivered liquid
or blockage of the pump.
Check the motor error status with the Motion
Manager software.
Try to liberate the pump by making it operate
for 1 s in a reverse direction with -1000 rpm.
Return the pump to the manufacturer for
cleansing. Use a filter, flush the liquid delivery

11 Problems and their removal Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
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system.
Flush the pump with a syringe.
The non-return valve does not open. Rinse the non-return valve.
Blockage of the delivery tubing or the
needle.
Cleanse, flush or exchange the delivery tubing
or the needle.
Air bubbles in the liquid delivery system,
Fill in the pump and the delivery system with
6 Dosage volume does not
correspond to the set values.
Air bubbles in the liquid delivery system,
(tubing, valves ,...) and the pump
Vent the liquid delivery system and check for
untight fluid connections.
Pump shows cavitation. Too long or too narrow intake tubing. Shorten
the intake tubing or change the position of the
Polluted or too small filter Change the filter to a new or bigger one.
The non-return valve does not open. Rinse the non-return valve.
7 Speed of the pump cannot be
adjusted.
Defective electric installation Check the electric installation for correct cable
configuration and loose contacts.
Defective drive control Return the drive control to the manufacturer.
8 Liquid drops from the dosing
The non-return valve does not close. Rinse the non-return valve.
Too high pressure on the primary liquid
tank
Stop the delivery of compressed air on the
primary liquid tank.
The liquid tank is placed at a higher level
than the dosing needle.
Place the liquid tank at the same or slightly
lower level than the pump.
9 Liquid leaks from the fluidic seal. The connection kit of the fluidic seal
module is untight.
Check the assembly, tighten the threaded
connections.
Pressure on the induction tank of the
fluidic seal liquid
Stop the delivery of compressed air on the
sealing liquid tank
Defective sealing - if necessary return the
pump to the manufacturer.
10 The dosage volume decreases with
time.
Polluted filter. Exchange the filter.
Deposits in the pump. Flush the pump or return it to the
manufacturer for dismantling and cleaning.
The pump is worn after a long operating
period or after use with abrasive liquids.
New definition of the calibration factor of the
pump, by modifying the pump characteristics
graph necessary.
11 Leakage from the pump The sealing does not function correctly. Return the pump to the manufacturer.
12 Leakage from the coupling
assembly
Defective shaft seal Return the pump to the manufacturer to
change the shaft sealing.
13 Leakage from the fluid connections Untight lock rings Exchange or tighten the fluid connections,
exchange the fluid connection fittings.
14 Air bubbles on the delivery side Loose fluid connections (particularly on the
Check and tighten the fluid connections.
The shaft seal is untight or worn. Return the pump to the manufacturer.
15 Minimal leakage during standstill No error, cause relative to the operating
principle
Employ a non-return valve.
Place the liquid tank at the same or slightly
lower level than the pump
16 Excess temperature The surface of the pump is hot. Clean the surface of the pump, rinse the pump
The pump operates with difficulty. The pump should be flushed.
Particles in the delivered liquid or deposits
in the pump
The operation of the pump should immediately
be stopped! Return the pump to the
manufacturer for cleansing.
Noise of beveling The operation of the pump should immediately
be stopped! Return the pump to the
manufacturer for cleansing and repair.
The motor surface or the motor interior are
too hot.
High temperature indicator in the drive is on.
The motor has been shut down by the
thermistor. Return the pump to the

11 Problems and their removal Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
66 Technical data subject to change without prior notice! Last update: October 2016
manufacturer.
17 The pump is noisy Wearout of the pump or defective
components
Do not continue to operate the pump, return it
to the manufacturer for maintenance.
18 Lack of connection with the RS-232
interface
The pump is not connected. Check the power supply 24 VDC.
Check the connection of the interface and the
null-modem cable. Change the cable if
necessary.
The drive control does not respond. Interrupt the voltage supply for about 10 s,
connect the voltage supply again. Automatic
start of the integrated drive control
19 Overcurrent Particles in the delivered liquid Rinse the pump.
The pump operates with difficulty. Dosing needle is damaged. Needle should be
cleansed, flushed or exchanged.
Tubing on the delivery side, dosing needle or
non-return valve are blocked. Cleanse, flush or
exchange the components.
Deposits inside the pump. Flush the pump. If necessary return the pump
20 Undervoltage Voltage supply < 12 VDC Check the power supply 24 VDC.
21 Overvoltage Voltage supply > 28 VDC Check the power supply 24 VDC. The drive
control may be damaged. Return the pump to
the manufacturer.
table 33 Trouble shooting - causes and solutions.
If a disturbance that has not been mentioned in the above list, or that makes
the use of the micro annular gear pump unsafe appears, please stop the
operation of the pump without delay and contact the manufacturer.

12 EC Directive Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 67
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 not relevant for micro annular gear pumps
described in this manual, because the supply voltage is limited to a maximum
of 30 VDC.
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 Motion
Controller of 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 haveto 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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
68 Technical data subject to change without prior notice! Last update: October 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.
12.1.1 EMC Directive and Standards
Comformity was proven by proof of compliance with the following
harmonized standards by the company Dr. Fritz Faulhaber:
EN 61000-6-4 (10/01): Generic standards – Emission standard for industrial
environments
EN 61000-6-2 (10/01): Generic standards – Immunity for industrial
environments
These standards prescribe certain standardised tests for the emittedinterference and interference-immunity tests. The following tests are required
due to the connections on the controller:
Generic Standard on Emitted
Interference:
Description
EN 55011 (05/98)+A1(08/99)+A2(09/02):
Radio disturbance characteristics
Generic Standard on Interference
Immunity
EN 61000-4-2 (05/95)+A1(4/98)+A2(02/01): Electrostatic discharge immunity test
EN 61000-4-3 (04/02)+A1(10/02): Radiated, radio-frequency, electromagnetic field immunity
test
EN 61000-4-4 (09/04): Electrical fast transient/burst immunity test
EN 61000-4-5 (03/95)+A1(02/01
EN 61000-4-6 (07/96)+A1(02/01): Immunity to conducted disturbances, induced by radio-
frequency fields
EN 61000-4-8 (09/93)+A1(02/01): Power frequency magnetic field immunity test
Table 1 Standards Summary
All tests were conducted successfully.

12 EC Directive Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 69
12.1.2 Information on use as intended
For micro annular gear pumps, note the following:
Requirement for the intended operation is the operation according to the
technical data and the manual.
Restrictions
If the micro annular gear pumps are used at home, in business or in commerce
or in small businesses, appropriate measures must be taken to ensure that
emitted interferences are below the permitted limit a values!

13 Declaration of conformity - manufacturer’s declarationOperating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
70 Technical data subject to change without prior notice! Last update: October 2016
13 Declaration of conformity - manufacturer’s declaration
Pump : EC declaration / attestation of conformity
(after Directive 2006/42/EC)
EC declaration / attestation of conformity
(following EMC Directive 2014/30/EU)
for micro annular gear pump mzr-6359 Ex
EC declaration / attestation of conformity
(following EMC Directive 2014/30/EU)
for micro annular gear pump mzr-7259 Ex
EC declaration / attestation of conformity
(following directive 2014/34/EU)
for micro annular gear pump mzr-6359 Ex
EC declaration / attestation of conformity
(following directive 2014/34/EU)
for micro annular gear pump mzr-7259 Ex
EC declaration / attestation of conformity
(following directive 2014/34/EU)
for micro annular gear pump mzr-6359X2 Ex
EC declaration / attestation of conformity
(following directive 2014/34/EU)
for micro annular gear pump mzr-7259X2 Ex
Coupling : EC declaration / attestation of conformity
(following directive 94/9/EC)
Ex-motor: EC declaration / attestation of conformity
Thermal
element :
EC declaration / attestation of conformity
(following directive 94/9/EC)
table 34 Overview declarations of conformity and manufacturer’s declaration
You may request the declarations of conformity for the micro annular gear
pumps from us separately.

Last update: October 2016 Technical data subject to change without prior notice! 71
EC-manufacturer’s certificate
(following Machinery Directive 2006/42/EC)
We hereby declare that the following micro annular gear pumps of the
hermetic inert pump series:
mzr-6359 Ex, mzr-7259 Ex, mzr-6359X2 Ex, mzr-7259X2 Ex
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 pump 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 ISO 13857
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: 12. August 2016
Signature manufacturer:
Dr. Thomas Weisener

Last update: October 2016 Technical data subject to change without prior notice! 73
EC-manufacturer’s certificate
(following EMC Directive 2014/30/EU)
We hereby declare that the following micro annular gear pump of the hermetic
inert pump series:
mzr-6359 Ex, mzr-6359X2 Ex
is intended for installation into another machinery/plant and that start of
operation is forbidden till 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
− EMC Directive (2004/108/EC)
Applied standards are particularly
EN 61000-6-4 (10/01): Generic standards – Emission standard for
industrial environments
EN 61000-6-2 (10/01): Generic standards – Immunity for industrial
environments
This statement does not warrant any characteristics in terms of product
liability. Please note the safety instructions in the manual.
Date: 12. August 2016
Signature manufacturer:
Dr. Thomas Weisener

Last update: October 2016 Technical data subject to change without prior notice! 75
EC-manufacturer’s certificate
(following EMC Directive 2014/30/EU)
We hereby declare that the following micro annular gear pump of the hermetic
inert pump series:
mzr-7259 Ex, mzr-7259X2 Ex
is intended for installation into another machinery/plant and that start of
operation is forbidden till 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
− EMC Directive (2004/108/EC)
Applied standards are particularly
EN 61000-6-4 (10/01): Generic standards – Emission standard for
industrial environments
EN 61000-6-2 (10/01): Generic standards – Immunity for industrial
environments
This statement does not warrant any characteristics in terms of product
liability. Please note the safety instructions in the manual.
Date: 12. August 2016
Signature manufacturer:
Dr. Thomas Weisener

Last update: October 2016 Technical data subject to change without prior notice! 77
EC declaration / attestation of conformity
(following directive 2014/34/EU)
As per the EC directive 2014/34/EU, dated 26 February 2014 and the
legislation arising from its implementation, we declares that the explosion
protected product, described in the operation and safety
instructions of the
micro annular gear pump
mzr-6359 Ex, mzr-6359X2 Ex
is a device in the sense of Article 1, (3) a) of Directive 2014/34/EU, and
complies with the essential safety and health requirements as per Appendix II
of Directive 94/9/EEC and the following harmonized directives:
− DIN EN 13463-1
− DIN EN 13463-5
The specified pump type falls into the explosion protection design classification
„c “.An ignition hazard assessment is available. The pump carries the
identification:
CE
II 2G c IIC T4 X
The technical documentation, in compliance with Article 13, (1) b) ii) of the
directive 2014/34/EU,in combination with Appendix VIII Number 2, has been
deposited with the following named body
DEKRA EXAM GmbH
Dinnendahlstraße 9
D - 44809 Bochum, Germany
Date: 12. August 2016
Signature manufacturer:
Dr. Thomas Weisener

Last update: October 2016 Technical data subject to change without prior notice! 79
EC declaration / attestation of conformity
(following directive 2014/34/EU)
As per the EC directive 2014/34/EU, dated 26 February 2014 and the
legislation arising from its implementation, we declares that the explosion
protected product, described in the operation and safety
instructions of the
micro annular gear pump
mzr-7259 Ex, mzr-7259X2 Ex
is a device in the sense of Article 1, (3) a) of Directive 2014/34/EU, and
complies with the essential safety and health requirements as per Appendix II
of Directive 94/9/EEC and the following harmonized directives:
− DIN EN 13463-1
− DIN EN 13463-5
The specified pump type falls into the explosion protection design classification
„c “.An ignition hazard assessment is available. The pump carries the
identification:
CE
II 2G c IIC T4 X
The technical documentation, in compliance with Article 13, (1) b) ii) of the
directive 2014/34/EU,in combination with Appendix VIII Number 2, has been
deposited with the following named body
DEKRA EXAM GmbH
Dinnendahlstraße 9
D - 44809 Bochum, Germany
Date: 12. August 2016
Signature manufacturer:
Dr. Thomas Weisener

13 Declaration of conformity - manufacturer’s declaration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex,
mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 81
Figure 24 EC declaration / attestation of conformity for the magnetic coupling after directive 89/392/EEC

13 Declaration of conformity - manufacturer’s declaration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
82 Technical data subject to change without prior notice! Last update: October 2016
Figure 25 EC declaration / attestation of conformity for the Ex-motor directive 94/9/EC

13 Declaration of conformity - manufacturer’s declaration Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex,
mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 83
figure 26 Manufacturer declaration thermocouple sensor

14 Maintenance and service Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
84 Technical data subject to change without prior notice! Last update: October 2016
14 Maintenance and service
14.1 Micro annular gear pumps
The first maintenance of the micro annular gear pumps has to take place after
4000 hours or after 6 month latest. If wear is low at the first inspection further
maintenance intervals at the same operation conditions can be extended to
6000 hours or to a service interval of 12 month latest.
If there is increased wear at the first inspection the maintenance intervals have
to be adapted according to the wear situation.
In case of maintenance and service please send the micro annular gear pump
to your distributor or HNP Mikrosysteme directly. The address you may find on
the front page of the manual or in section 1.
The micro annular gear pumps is sealed. It is prohibited to open or disassemble
the pump. The warranty will expire immediately in such a case.
HNP Mikrosysteme cannot give any warranty for replacing in case of damages
to the pump which are related to faulty operation.
14.2 Magnetic coupling
Maintenance of the magnetic coupling is not necessary according to the
enclosed manufacturer’s data when assembled by HNP Mikrosysteme.
Within the maintenance intervals of the pump must be checked. If at the first
inspection damage at the metal bellow-type coupling is found the
maintenance intervals have to be adapted according to the operational data.
This check must be part of the maintenance intervals of the micro annular gear
pump.
14.3 Ex-Motor
The explosion proof motor itself is maintenance free. According to the
manufacturer’s instruction the explosion proof motor has to be checked 1-2
times per year regarding cracks and damages. This check must be part of the
maintenance intervals of the micro annular gear pump.

15 Contact person Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 85
15 Contact person
Development and application assistance , service and accessories
Mr. Sven Reimann
Phone +49| (0) 385|52190-349
Service and maintenance
Mr. Steffen Edler
Phone +49| (0) 385|52190-307
Drive and control technology
Mr. Lutz Nowotka
Phone +49| (0) 385|52190-346

16 Legal information Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
86 Technical data subject to change without prior notice! Last update: October 2016
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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 87
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-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
88 Technical data subject to change without prior notice! Last update: October 2016
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:
toxic (toxic byproducts)
carcinogenic
irritant
radioactive
microbiological
corrosive
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 Appendix Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
Last update: October 2016 Technical data subject to change without prior notice! 89
19 Appendix
Layout

19 Appendix Operating manual mzr-6359 Ex, mzr-6359X2 Ex, mzr-7259 Ex, mzr-7259X2 Ex
90 Technical data subject to change without prior notice! Last update: October 2016
Figure 27 Data sheet mzr-6359 Ex, mzr-7259 Ex, mzr-6359X2 Ex and mzr-7259X2 Ex