ELRO M300 Series User manual

www.cranechempharma.com
Peristaltic Pumps
Series M300
Series T300
Operating and
Installation Instructions
Installation, Operation
and Maintenance
BA-M300-GB/10.19

2
ELRO®Peristaltic Pumps Series M300 / T300
This is the translation of the original declaration of conformity
for ELRO®peristaltic pumps series M300 / T300.

3
ELRO®Peristaltic Pumps Series M300 / T300
EC Declaration of Conformity
in compliance with the Machinery Directive 2006/42/EC
We hereby declare, that the pump units manufactured in series production
Designation: ELRO Peristaltic Pump and
ELRO peristaltic pump heads with/without
mounting frame
Series: M300, T300
Manufacturer: Crane Process Flow Technologies GmbH
Heerdter Lohweg 63 - 71
40549 Düsseldorf
Serial number: (see identication plate)
in the version delivered by us, is in compliance with the following applicable
regulations:
EC directives: Machinery Directive 2006/42/EC
EMC Directive 2014/30/EU
Harmonized standards: EN ISO 12100:2011-03, EN ISO 13857:2008-06,
EN 809:2012-10
Mr. Ralf Rennwanz is authorized to compile the technical documents.
Crane Process Flow Technologies GmbH
Heerdter Lohweg 63 - 71
40549 Düsseldorf
Place, date: Düsseldorf, 31.10.2019
Signature of manufacturer:
Information on signatory: Hans-D. Ptak, Managing Director

4
ELRO®Peristaltic Pumps Series M300 / T300
in accordance with directive 2014/34/EU for equipment intended for use
in potentially explosive atmospheres
The manufacturer Crane Process Flow Technologies GmbH,
Heerdter Lohweg 63-71, 40549 Düsseldorf,
declares that the pump units manufactured in series production
Description: ELRO – Peristaltic Pump
Series: M300 including drive and accessories
Pump hose materials: NBR, CSM, NR
all hoses are electrically conductive
Connecting ports: Stainless steel, bronze; PP electrically conductive
Base frame: Fire ghter frame high-grade steel or galvanized steel
Pulsation damper: High-grade steel with CSM diaphragm electrically conductive
Suction/pressure hoses: electrically conductive
Barrels and suction accessories: Stainless steel
Drives: All drives have their own declaration of conformity issued by the
supplier
Installed electrical components: all electrical units have their own declaration of conformity issued
by the supplier
in the version delivered by us, is in compliance with the following applicable regulations:
EC Directive: Directive 2014/34/EU for equipment authorised for use in poten-
tially explosive environments.
Conformity assessment procedures: Equipment group II, category 2G, explosion group IIB
temperature class T3, equipment protection level (EPL) Gb
Harmonised standards: DIN EN 1127-1:2011-10
DIN EN ISO 80079-36:2016-12
DIN EN ISO 80079-37:2016-12
Place, date: Düsseldorf, Germany, 26/09/2019
Signature of manufacturer:
Information on signatory: Hans-Dieter Ptak, Managing Director
EU Declaration of Conformity
II 2G Ex h IIC T3 Gb

5
ELRO®Peristaltic Pumps Series M300 / T300
Table of contents
Page
1.0 Introduction............................................................................................................7
1.1 Warranty .................................................................................................................. 7
1.2 Transport, storage .................................................................................................... 8
1.3 Principle of function.................................................................................................. 8
2.0 Safety....................................................................................................................10
2.1. General information................................................................................................ 10
2.2 Intended use .......................................................................................................... 11
2.2.1 Unintended use
2.3 Operation of pump ................................................................................................. 11
2.4 Conversions and alterations to the pump ............................................................... 12
2.5 Symbols and safety notes ...................................................................................... 12
2.6 Maintenance work.................................................................................................. 12
2.6.1 Health and safety information on electric equipment.............................................. 13
2.6.2 Health and safety information on lines
under pressure....................................................................................................... 14
2.6.3 Regulations and instructions on lubrication............................................................ 14
2.7 Noise emissions..................................................................................................... 15
2.8 Use of pumps in potentially explosive environments .............................................. 15
3.0 Notes on installation and use.............................................................................16
3.1 Installation instructions for peristaltic pump heads ................................................. 16
3.2 Points to be observed before use........................................................................... 16
3.2.1 Pump suction line................................................................................................... 16
3.3 Installation.............................................................................................................. 16
3.4 Equipotential bonding / Earthing ............................................................................ 17
3.5 Distance for vibration ............................................................................................. 17
4.0 Operating instructions ........................................................................................18
4.1 To be considered before commissioning................................................................ 18
4.2 Commissioning ...................................................................................................... 18
4.3 Decommissioning .................................................................................................. 18
5.0 Maintenance.........................................................................................................19
5.1 Cleaning................................................................................................................. 21
5.2 Replacement of the pumping hose......................................................................... 21
5.3 Replacement of separating part ............................................................................. 24

6
ELRO®Peristaltic Pumps Series M300 / T300
5.4 Replacement of abutment...................................................................................... 24
5.5 V-belt drive ............................................................................................................. 25
5.5.1 Axial safety of the belt pulleys ................................................................................ 25
5.5.2 Checking the V-belt tension ................................................................................... 25
5.6 Lubricant change ................................................................................................... 25
5.6.1 Pump housing ........................................................................................................ 25
5.6.2 Gearbox ................................................................................................................. 25
5.6.3. Lubricant types....................................................................................................... 25
5.7 Shaft bearing.......................................................................................................... 25
6.0 Spare parts...........................................................................................................26
6.1 Stock keeping of spare parts ................................................................................. 26
6.2 Ordering spare parts .............................................................................................. 26
7.0 Troubleshooting...................................................................................................27
8.0 Appendix I ...........................................................................................................30
Noise emissions..................................................................................................... 30
9.0 Appendix II ..........................................................................................................31
Recommendations for use ..................................................................................... 32

7
ELRO®Peristaltic Pumps Series M300 / T300
Fig. 1: Exemplary installation for peristaltic pumps
1.0 Introduction
ELRO®Peristaltic pumps M300/T300 are dimen-
sioned as pumps in accordance with chapter 1,
article 1, section (2), paragraph (j), point (ii) of the
pressure equipment directive and are therefore
no pressure equipment as dened by the EC
pressure equipment directive 2014/68/EEC.
The following instructions refer only to the peri-
staltic pumps M300 and T300.
Since the pumps will be used in
combination with other assem-
blies, such as combustion engines
and electric motors, you must also
strictly observe and comply with
the operating and maintenance
instructions for these components
as well as the corresponding
notes on safe and reliable opera-
tion.
These instructions contain information for in-
stallation, operation and maintenance of peri-
staltic pumps ELRO M300 and T300.
You should therefore thoroughly read these
instructions before use and always follow the
information contained therein.
All personnel involved in activities
on pump or equipment must have
read this manual, especially the
chapter ”Safety” before starting
work. This is too late once work
has started. This applies especial-
ly for persons who work on the
pump only occasionally, e.g. for
maintenance and cleaning work.
Each pump is subject to stringent inspections
and function tests before leaving the factory.
You should always bear in mind that a correct
function, a long lifetime and optimal opera-
tional reliability of the pump mainly depend
on
ncorrect installation
ncorrect commissioning
nand proper maintenance.
Enquiries concerning service, spare parts or
repairs should be addressed to the manufac-
turer or an authorized dealer.
Always provide the following information:
n Pump type
nSerial number of pump
This information is stamped on the identica-
tion plate on the base of the pump.
When returning pumps or pump parts to
the manufacturer or an authorized dealer
for repair or overhaul, the delivery must be
accompanied by a certicate stating that the
pump is free of product or other aggressive
or hazardous substances (see page 37).
1.1 Warranty
The correct function of each ELRO peristaltic
pump is checked in the factory before ship-
ment. The manufacturer assumes warranty
for his product as specied in the eective
terms of sales and delivery. Faults resulting
from the non-compliance with the aforemen-
tioned regulations and notes can only be
rectied at the cost of the customer.
Caution!
Caution!

8
ELRO®Peristaltic Pumps Series M300 / T300
Saugseite
1
2
3
1.3 Function
The priming properties of the peristaltic
pump are based on the vacuum backed
restoring force of its hose. Due to its special
design a vacuum is permanently generated
inside the hose on the suction side of the
pump. This vacuum always restores the
hose to its original size. This way the pump
achieves maximum pumping power.
Fig. 2 - Attaching the lifting ropes
1.2 Transport, storage
In order to avoid any problems you should
ncheck the delivered goods against the
delivery note for completeness and cor-
rectness,
nmake sure that for pumps with electric
motor, combustion engine, water tur-
bine, hydraulic motor or pneumatic mo-
tor the respective operating instructions
for the drive are available.
Be careful when unpacking the pump and
proceed as follows:
nExamine the packaging for transport
damage.
nTake the pump carefully out of the pack-
aging.
nExamine the pump for any visible dam-
age.
nRemove all plugs from the pump ports.
nMake sure that accessories, such as
seals and ushing lines, are free of
damage.
Consider the indicated weight
before attempting to lift the
pump. Use only lifting gear of
appropriate capacity.
Do not step or stand under sus-
pended loads.
Fasten the lifting gear so that the pump (or
pump with drive unit) can be safely lifted
(see example).
Fig. 3 1 Rotor
2 Abutment
3 Separating part
Caution!

9
ELRO®Peristaltic Pumps Series M300 / T300
The sliding tube of the rotor enlarges the
volume of the suction area (4). At the same
time the pressure area (7) is decreased and
the air is forced out through a channel in the
pump cover.
Fig.4
Fig. 5
7
5
4
6
1
3
4
74 77
6
7
5
4
6
1
3
4
74 77
6
The rotor 1 rotates inside the separating
part 3, which is tightly bolted to the housing.
This separates the suction area 4 from the
inside of the pump 5.
The abutment 2 (Fig. 3) is an elastomer part
and is installed in the pump section where
the hose is squeezed to maximum extend.
At the same time this abutment protects the
pump housing against damage caused by
solid particles in case of a hose breakage.
In case of wear the abutment can be easily
replaced.
The separating part (Pos. 3, Fig. 3) sepa-
rates the suction area from the inside of the
pump and protects the pumping hose. In
case of hose breakage it additionally pro-
tects the rotor (Pos. 1, Fig. 3) against dam-
age caused by abrasive or coarse particle
product. The separating part can be re-
placed by simply unscrewing two screws.
The pump is lled with 1-2 litres of glycerine
or silicone, which works as lubricant, barrier
and coolant.
The vacuum gauge (Fig. 3a), which is con-
nected with the suction room (Pos. 4, Fig. 4)
not only shows the current suction head of
the pump, but also serves as warning ele-
ment in case of possible defects. If the vac-
uum gauge does not indicate any vacuum
during operation, the pump most certainly
needs servicing.
Maintenance can be carried out without any
special tools.
1 Rotor
3 Separating part
4 Suction area
5 Inside area
6 Hose chamber
7 Pressure area
4 Suction area
7 Pressure area
Fig. 3a 1 Vacuum meter
1

10
ELRO®Peristaltic Pumps Series M300 / T300
As the rotor rotates further the suction area
becomes bigger. The fast rotation of the ro-
tor generates a permanent vacuum of down
to -1 bar (Fig. 6).
Fig. 6
Fig. 7
7
5
4
6
1
3
4
74 77
6
7
5
4
6
1
3
4
74 77
6
Since the hose chamber Pos. 6 remains
constant, the pressure area Pos. 7 is
decreased by rotation of the rotor, which
results in a volumetric pumping process
(Fig. 7).
2.0 Safety
2.1 General information
Make sure that the pump is installed in com-
pliance with all applicable national safety
regulations.
Always observe all applicable accident
prevention instructions and implementing
regulations.
Transfer of media of Explosion
Group IIA and IIB is only permit-
ted outdoors or in well ventilat-
ed rooms.
The following precautions must be applied
before performing maintenance work. If
the product to be pumped is a hazardous
or noxious substance, the system must be
neutralized and vented.
Danger of burning!
Depending on operating con-
ditions the pump may reach
temperatures too high to touch.
You should therefore switch o
the pump and let it cool down
before touching it.
nDisconnect main drive unit and pump
from the electric power supply (e.g. pull
out the mains plug).
nDepressurize the pump head.
nIt is not permitted to run the pump after
removing the pump cover. When clean-
ing the pump manually make sure that
all necessary precautions have been
applied.
All incorrectly installed, unprofessionally
operated or insuciently serviced machines
and pumps are potential safety hazards.
The non-observance of relevant safety
measures may cause injury to operating
personnel or damage to the pump.
6 Hose chamber
7 Pressure area
4 Suction area
7 Pressure
Caution!

11
ELRO®Peristaltic Pumps Series M300 / T300
the product comes into contact
with the silicone or glycerine lubri-
cant.
When changing the delivery me-
dium, make sure that no chemical
reactions can occur with existing
residual uid.
When changing delivery media in
Explosion Groups IIa and IIB, for
safety reasons install a new deliv-
ery hose.
Pumped products which lead to
chemical reactions on contact with
aluminium may on no account be
pumped with a peristaltic pump.
2.2.1 Unintended use
The operating safety and reliability of the sup-
plied pump can only be assured if it is used for
the purpose it is intended for. The limits men-
tioned in the technical data sheet must not be
exceeded under any circumstances.
It is prohibited to operate the pump without a
sucient quantity of lubricant. For the neces-
sary ll quantities, refer to Ch. 5.6.
Temperature of pumped product:-
max. permissible 80°C
Speed of drive shaft n2 max.:
2303 min-1
Speed n2max.: 1920 min-1. It is
prohibited to operate the pump for
more than 0.5 h without delivery
medium.
2.3 Operation of pump
The pump must only be operated by trained,
instructed and authorized persons. Any re-
sponsibilities must be clearly appointed before
starting operation and should always be com-
plied with.
On pump systems with protective covering
and guards these must be properly assem-
bled again before restarting.
The pump must be shut down or should not
be restarted if any defects are found which
could aect the operating safety and reliabil-
ity of the pump.
2.2 Intended use
The peristaltic pumps of series M300 and
T300 are designed for mobile use and for
short-time operation (up to max. 5 hours).
Check the pumping capabilities
of the medium (freezing point)
before commissioning.
Pumps without explosion pro-
tected drive must not be used
in explosive environments.
Temperatures
The permissible ambient temperature range
is -20 °C to +40°C.
Pumps with glycerine lubricant
Not permitted to be pumped or stored in the
same room: Substances which react se-
verely up to explosively with glycerine.
Examples:
• Calcium hypochloride
• Chlorine
• Chromium trioxide
• Potassium permanganate
• Sodium peroxide
• Phosphorus pentoxide
• Phosphorus triiodide
• Nitric acid
• Sulphuric acid
• Hydrogen peroxide
Please check before using the
peristaltic pump that no chem-
ical reactions can occur when
Danger!
Danger!
Danger!
Danger!
Danger!
Warning!

12
ELRO®Peristaltic Pumps Series M300 / T300
Strictly observe the operating instructions
for the drives in chapter “Appendix”.
2.4 Conversions and alterations to
the pump
Conversions and alterations to the pump
are strictly prohibited.
However, this does not include minor
changes that do not aect safety and re-
liability, or measures that even enhance
the safety. Safety installations must not be
made ineective or changed or used in a
way contradicting their purpose.
2.5 Symbols and notes on safety
Note on danger, which, if not
observed, may lead to sever
injury or even death.
Note on danger, which, if not
observed, may lead to sever
injury or even death.
Note on danger, insecure hand-
ling and working procedures
may cause injury or extensive
damage to equipment and
property.
Warning – dangerous electric
voltage.
Contact with live parts can
cause immediate death. Doors
and covers (e.g. hoods and
lids) marked with this sign
must only be opened by ”spe-
cialists or/and instructed
persons” after the respective
operating voltage (input termi-
nal voltage, operating voltage
or external input voltage) has
been switched o.
Operating safety of equipment
at risk.
The non-observance of this
note aects the operation-
al reliability and can lead to
pump damage.
In this manual the Attention
symbol precedes all safety
notes referring to instructions,
regulations or work sequenc-
es, which must be strictly
complied with.
Danger of explosion: Special
instructions apply when han-
dling explosive products or in
an explosive environment.
2.6 Maintenance work
applies particularly for all work on electric,
hydraulic and pneumatic equipment.
Keep unauthorized persons away from the
pump.
Mechanical and electrical repairs and
maintenance work must only be carried
out by qualied specialists. The profes-
sional execution of this work must be
examined and approved by a highly skilled
and responsible ”Inspector”.
Before starting repair and maintenance
work the equipment must be switched o
and shut down and secured against unin-
tended or unauthorized restarting.
Before starting work on electrical systems
and equipment make sure that the system
is reliably de-energized.
Apart from this the pump/system must be
reliably secured against unexpected re-
starting.
Danger!
Caution!
Attention!
Warning!

13
ELRO®Peristaltic Pumps Series M300 / T300
nPull out the mains plug.
The customer (or an ”authorized person”
appointed by him) is responsible for the
compliance with all accident prevention
instructions applicable at the place of use.
As a measure to avoid injury all mainte-
nance, adjustment and repair work should
only be carried out using permitted and
appropriate tools and working aids.
Blown fuses must not be repaired or bridged
and may only be replaced by fuses of the
same type.
Cooling facilities, such as ventilation slots or
fans, must not be covered or made perma-
nently ineective.
Rotating or moving parts must be reliably
stopped before starting work. It must be as-
sured that these parts will not start to move
while work is in progress.
Do not touch rotating parts and always keep
a safe distance to avoid clothing or hair
being caught.
Always wear protective clothing suitable for
the job and the related dangers.
This applies especially to cleaning, main-
tenance and repair work. Depending on
the type of work to be performed sucient
protection can be provided by e.g. wearing
the following protective clothing: protective
goggles, ear defenders, working boots,
safety gloves, etc.
Protective clothes should be of tight t.
If your face may get in contact with chem-
icals, metal splinters or dust during work,
you should wear a full face protection with
safety goggles.
Always wear safety boots if there is a risk
of heavy objects tipping over, slipping or
coming loose for any other reason, thereby
causing danger for your feet.
2.6.1 Health and safety information on
electric equipment
Depending on the version, the pumps may
be equipped with electric accessories (con-
trols, motor drives).
Severe damage to health and property can
be caused by:
nunauthorized removal of covers
ninappropriate use of pump
ninadequate maintenance
Before starting installation work on electrical
equipment this equipment must be reliably
zero potential.
Cover non-insulated live power lines and
plug connections against unintended con-
tact.
Electric components stored and not used for
a longer period of time should be carefully
inspected before use, to ensure that the
insulation is still intact.
On wet electric assemblies or components
parts, which would be perfectly zero poten-
tial in dry condition, may still be live.
Before touching damp or wetted electric
components check by measuring whether
parts that could be touched are still live.
Never attempt to insert any objects through
the openings on the pump or attached
equipment. This may cause short circuits
and electric shocks with danger to limb and
life.

14
ELRO®Peristaltic Pumps Series M300 / T300
2.6.2 Health and safety information for
work on lines under pressure
Always relieve the pressure before starting
work on pressure lines.
n Close shut-o valves
nVent lines
Be careful when checking for
leaks on lines under pressure.
Fluids or air escaping under
pressure can penetrate clothes
and skin.
Be careful when loosening or
changing pressure lines; lines
mixed up by mistake may re-
verse the function.
Take care when handling hazardous (caus-
tic, harmful) uids.
nAlways wear your personal protective
outt (e.g. gloves, goggles, tight tting
clothes).
nIn case of skin contact, inhalation of
harmful vapours or eye injury you should
immediately contact a physician.
2.6.3 Regulations and instructions on
lubrication
Lubrication work must only be carried out by
authorized personnel.The professional ex-
ecution of this work must be examined and
approved by a highly skilled ”Inspector”.
Unauthorized persons must not be permit-
ted to work on machines or units or in their
vicinity.
Lubricants and oils must not come in con-
tact with naked ames or glowing parts.
When working on assemblies and compo-
nents (e.g. motor, gearbox) you must also
consider the specic instructions and lubri-
cation instructions for these assemblies and
components (see chapter “Appendix”).
The complete system must generally be
switched o and secured against unintend-
ed and unauthorized restarting before start-
ing lubrication work.
(Exception: Lubrication work that can only
be performed when the system is running).
As a measure to avoid injury all lubrication
work should only be carried out using per-
mitted and appropriate tools and working
aids.
Rotating or mobile parts must be shut down
and reliably secured against restarting be-
fore starting work.
Do not touch rotating parts and always keep
a safe distance to avoid clothing or hair
being caught.
Strict cleanliness is of utmost importance
during initial lling and when topping up or
changing lubricant so that no foreign matter
will enter through the lubrication point.
n Overowing and spilling of oil must be
avoided.
n Wipe o excessive and emerging
grease.
nAvoid skin contact with oils and grease,
wear protective clothes.
With certain lubricants, e.g. low amma-
bility hydraulic uids, the special safety
instructions for these substances must be
observed.
(See notes on packaging and instructions of
manufacturer).
Caution!

15
ELRO®Peristaltic Pumps Series M300 / T300
2.7 Noise emissions
In a room with several pumps you may
experience an extreme development of
noise. Depending on the sound pressure
level the following measures must therefore
be applied:
below 70 dB (A): No special measures
above 70 dB (A): Persons who are
permanently in the room
must wear ear defenders.
above 85 dB (A): Room with dangerous
noise level! Each door
must have a clearly
noticeable warning sign to
warn persons from entering
the room without ear
defenders.
Measured sound pressure level as per
appendix I on page 32.
All M300/T300 pumps with motor delivered
by the manufacturer have been subjected to
a sound pressure measurement according to
EC-directive 200/14/EC.
e.g. sample sticker
2.8 Use of pumps in potentially
explosive environments
When using pumps in explosive environ-
ments or when pumping combustible liq-
uids, you must check that the unit is suitable
according to the declaration of conformity in
terms of the 94/9 EC directive (ATEX) for the
intended area of use.
The chapter “Equipotential bonding/earth-
ing” and “Vibration distance” must be ob-
served when installing the pumps.
Earthing of the pump by means of earthing
screw or discharging hoses must take place
before bringing the pump into the explosion
endangered area.
All connected pipelines, components and
hoses must be electrically conductive (spe-
cic volume resistivity <1 MΩm; surface
resistance <1 GΩm).

16
ELRO®Peristaltic Pumps Series M300 / T300
3.0 Notes on installation
and use
3.1 Installation instructions for
peristaltic pump heads
For the installation of peristaltic pumps
ELRO M300 without drive the following
conditions must be met, so that the pump
can be properly assembled together with
components to a complete machine, without
aecting the health and safety of persons.
1. Before installation of the pump the
supplied ventilation valve (Fig. 12, part-
no. 1012) must rst be mounted to the
elbow in the pump cover.
2. Fasten the pump head in its place by
observing the specied suction side
and sense of rotation (see sticker). The
pump must only be operated in upright
position with suction and pressure ports
pointing up.
3. Max. drive speed nmax = 2800 rpm
Min. drive torque Mmin = 7 Nm
Max. drive torque Mmax = 116 Nm
3.2 Points to be observed before use
The pump must only be used by profession-
als and in compliance with the safety regula-
tions (see chapter 2).
1. Before start-up make sure that pump
and drive unit are in perfect condition.
The pump must only be operated in
upright position with suction and pres-
sure ports pointing up. Pipe lines must
be routed in a way that the weight of the
pipes does not rest on the pump.
2. The pump is delivered ready for opera-
tion.
To prevent frictional heat and protect the
delivery hose, the pump must be lled
as standard using silicone oil M 350 or,
as requested, glycerine DAB10; 99.9%
ignition temperature 400 °C. Other an-
ti-friction uids have not been approved
by the manufacturer.
For the ll quantities, refer to Ch. 5.6)
Before using the peristaltic
pump you should make sure
that your pumped product will
not cause any chemical reaction
when coming into contact with
the glycerine or silicone, in case
of a hose damage.
3. Check the pump arrangement to ensure
that suction lift and discharge head are
not exceeded.
3.2.1 Pump suction line
If the uid to be pumped contains solid par-
ticles with a size of more than 8 mm, a lter,
e.g. at suction box, suction strainer should
be used. This lter must be permanently
monitored and cleaned when necessary.
3.3 Installation
The pump unit must be placed on a level
base of sucient load bearing capacity for
the weight of the pump.
Because the pump is a positive
displacement pump it must be
assured that no shut-o ele-
ments are installed in the pres-
sure side. Components reducing
the cross-section of the piping
or instable hoses which could
cause blockage of the piping
system must not be used.
The pump is tted with Camlock quick cou-
plings DN 50 (male part) for the connection
Danger!
Caution!

17
ELRO®Peristaltic Pumps Series M300 / T300
of hoses. Camlock couplings DN 50 (female
part) with 2” external thread should be used
as matching parts. It is recommended to con-
tinue with a 2” elbow each, in order to avoid
buckling of suction and pressure hoses.
Couplings normally used by the customers,
such as
n re ghting couplings C (system Storz)
(DIN 14307),
n screw couplings DN 50 (DIN 11851) or
ntank truck couplings VK or MK 50 (DIN
28450) can then be connected to these
elbows.
All connecting parts are available made of
the following materials as standard:
Aluminium (AIMgSi), red brass (copper zinc
alloy), conductive plastic (PP), stainless steel
(1.4571).
Pumps with electric drive motors are deliv-
ered from the factory with motor circuit break-
er and connecting plug.
The necessary connecting line must be tted
with a matching socket.
Electrical installations and con-
nections must only be made by a
qualied electrician.
Pumps and drives with combus-
tion engines must only be start-
ed up by following the operating
instructions of the engine manu-
facturer (see chapter Appendix).
Warning!
3.4 Vibration distance
When installing and operating, a distance
of a minimum of 10 cm between pump and
other components, excluding connections,
must be adhered to.
3.5 Equipotential bonding / Earthing
In principle, pumps and accessories must be
earthed or provided with equipotential bond-
ing if there is the possibility of electro-static
charging and for use in potentially explosive
environments.

18
ELRO®Peristaltic Pumps Series M300 / T300
Check the lubrication of the drive unit.
Make sure that all safety features are fas-
tened and fully functional.
Camlock couplings must not be
used without being locked (ad-
ditional locking pins or O-ring).
The peristaltic pump must un-
der no circumstances be op-
erated against closed shut-o
valves.
The drive unit is to be started up in accord-
ance with the respective operating instruc-
tion.
4.3 Taking out of service
Always observe the safety in-
structions in chapter 2 in this
manual and the operating in-
structions for the drive unit in
the chapter “Appendix”.
The shut-down procedure for maintenance,
installation or cleaning work must only be
performed by authorized and trained per-
sonnel.
1. Switch o the electric power supply or
the respective drive and secure against
unintended restarting.
2. Close shut-o valves on suction and
discharge side.
3. Relieve the pressure in suction and
pressure lines.
4.0 Operating instructions
4.1 Points to be observed before
commissioning
Please check:
nwhether the pump is correctly installed
and connected.
nwhether the sense of pump rotation is
correct. The sense of rotation is “clock-
wise” (when viewed from the pump
head cover). An arrow on the pump
housing marks the sense of rotation.
nthat a pump without explosion protected
drive will be under no circumstances
used in an explosive environment.
nwhether the pumping hose inside the
pump is suitable for the product to be
pumped.
nwhether the pump is properly earthed to
avoid electro-static charging.
4.2 Commissioning
The pump must only be operated in upright
position with suction and pressure ports
pointing up.
The vacuum gauge mounted to the pump
housing shows the vacuum on the suction
side. After a short time running the vacuum
gauge should indicate vacuum.
The vacuum indicated by the vacuum meter
depends on suction head and pumped prod-
uct. This vacuum meter must show at least
-0.7 bar to achieve max. pumping capacity.
This can be achieved by placing the pump
at a more distant point and thus lengthening
the hose.
If no vacuum is reached, check pump and
couplings for leak tightness (see chapter
maintenance and troubleshooting).
Attention!
Attention!

19
ELRO®Peristaltic Pumps Series M300 / T300
Fluids escaping under pressure
can cause severe injury.
Take care when loosening pres-
sure ttings, wear protective
clothing.
Be extremely careful when han-
dling hazardous uids.
You should immediately consult
a doctor if you had contact with
such substances.
4. Loosen suction and pressure ttings
carefully. The system may still be under
pressure or tension.
5. Disconnect suction and discharge lines
from the pump and disassemble the
rinsing line (if present).
If wear symptoms are detected when in-
specting the pump, the respective parts
must be replaced.
5.0 Maintenance
Always observe the safety reg-
ulations in chapter 2 when per-
forming maintenance work!
Before working on the pump, it
must be removed from the po-
tentially explosive area to a safe
working area.
No work on the pumps in the
EX-area.
Regularly check all lines and ttings
for signs of leaks and external damage!
Repair any damage immediately!
Handling peristaltic pumps M300/T300 re-
quires special safety measures and reliable
maintenance after each application!
Explicit reference is made to the test and
operating regulations in accordance with
Ordinance on Hazardous Substances (Gef-
stoV) and the Industrial Safety Regulations
(BetrSichV).
Fundamentally, before starting maintenance
work, the pump must be switched o and
disconnected from the electric supply.
General maintenance is limited to a profes-
sional visual inspection. During this inspec-
tion, pay special attention to aected com-
ponents, loose connecting parts or electrical
connections!
n Check the equipment plug and con-
necting cable for secure connection and
damage.
n Defective cables and equipment plugs
Attention!
Danger!
Danger!

20
ELRO®Peristaltic Pumps Series M300 / T300
can only be replaced by the manufactur-
er.
n Loose connections and damaged parts
must be tightened and damaged parts
must be replaced (designation see
spare parts list).
n Repair corroded components.
n Make sure that the pump is thoroughly
ushed and the pumped product com-
pletely drained (refer to Chapter 4.3:
Decommissioning).
We recommend the operator of the peri-
staltic pump to maintain an application and
operation logbook, to provide evidence of
the operating hours of the pump and pump-
ing hose.
During general maintenance, check to see
whether the pumping hose must be replaced
for safety reasons (refer to maintenance
instructions).
Explicit reference is made to accident pre-
vention regulations (UVV).
Spare parts kit
Consists of the following positions:
1 x Pumping hose M 300 connected with
2 x Connecting sockets
1 x l silicone or glycerine
1 x Set of O-rings (incl. 1 x O-ring for pump cover and 2 x O-rings for connecting sockets)
Description Quantity Article-No.
Hose material Lubricant
Connection socket ALUMINIUM
Nitrile - NBR Silicone 1 Set ESK-M-ABS
Nitrile - NBR Glycerine 1 Set ESK-M-ABG
Hypalon - CSM Silicone 1 Set ESK-M-ACS
Hypalon - CSM Glycerine 1 Set ESK-M-ACG
Natural rubber - NR Silicone 1 Set ESK-M-ANS
Natural rubber - NR Glycerine 1 Set ESK-M-ANG
Connection socket POLYPROPYLENE
Nitrile - NBR Silicone 1 Set ESK-M-KBS
Nitrile - NBR Glycerine 1 Set ESK-M-KBG
Hypalon - CSM Silicone 1 Set ESK-M-KCS
Hypalon - CSM Glycerine 1 Set ESK-M-KCG
Natural rubber - NR Silicone 1 Set ESK-M-KNS
Natural rubber - NR Glycerine 1 Set ESK-M-KNG
Connection socket BRONZE
Nitrile - NBR Silicone 1 Set ESK-M-RBS
Nitrile - NBR Glycerine 1 Set ESK-M-RBG
Hypalon - CSM Silicone 1 Set ESK-M-RCS
Hypalon - CSM Glycerine 1 Set ESK-M-RCG
Natural rubber - NR Silicone 1 Set ESK-M-RNS
Natural rubber - NR Glycerine 1 Set ESK-M-RNG
Connection socket HIGH-GRADE STEEL
Nitrile - NBR Silicone 1 Set ESK-M-SBS
Nitrile - NBR Glycerine 1 Set ESK-M-SBG
Hypalon - CSM Silicone 1 Set ESK-M-SCS
Hypalon - CSM Glycerine 1 Set ESK-M-SCG
Natural rubber - NR Silicone 1 Set ESK-M-SNS
Natural rubber - NR Glycerine 1 Set ESK-M-SNG