Roth Cyclo II User manual
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Fig 1:
Operating elements of pump
3 Pivoted lever
Pos 1 Pivoted lever closed - operating state
Pos 2 Pivoted lever open - for tube change
4 Cartridge – remove for tube change
7 Feed tube
8 Tube clamp
10 Manual nuts for dismantling the pump head
15 Operation LED
16 Speed control
17 Direction Switch
Pericyclic Pump – Roth Cyclo II
Y374., EP74.1, EP75.1 and EP76.1
Congratulations!
You’ve made an excellent choice. We at Carl Roth GmbH & Co. KG thank you for your confidence.
This instruction manual will familiarize you on how to operate and use our pericyclic pump, Roth
Cyclo ll. Please read it thoroughly before operating the unit.
Operating Instructions Page
1. Delivery includes 2
2. Safety instructions 2
3. Areas of Application 2
4. Initial operation 3
5. Tube cartridges and Tubes 3
5.1 Selection of the correct tube cartridge 3
5.2 Inserting and replacing Tube 4
6. Setting the optimum Tube Pressure 4
7. Changing the Operating Conditions 4
8. Service and Cleaning 4
8.1 Outside Cleaning 4
8.2 Disinfection 5
9. Dismantling the pump head 5
9.1 Turning the pump head 5
10. Malfunctions 5
11. Technical Data 6
12. Accessories 6
15
16
17
3
4
8
7
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1. Delivery includes:
Pericyclic Pump Roth Cyclo II
Tube cartridge for tubes ID 4,8 x Thickness 1,6 mm
Mains cable for 220 V connection
Instruction manual
2. Safety instructions
For these appliances, the safety of machines with respect to people, the environment and the processed
material is mainly dependent on the behaviour of the persons operating the appliances. Before starting up
the appliance, carefully read the operating instructions, and note the information given to prevent errors and
any resulting damage, especially injury to health.
The appliance may only be operated by instructed personnel. Mains connection cables and plugs must be
checked for damage before using. If they are damaged, the device must not be connected to the mains. The
voltage given must match the available rated mains voltage. Work on the electrical equipment may only be
carried out by skilled electricians in a safe condition (current switched off, mains plug removed).
Only authorised original spare parts/accessories may be used. The use of other parts conceals unknown
risks and must be refrained from in every case.
Any necessary checks, service or repair work may only be carried out by Carl Roth GmbH & Co.KG,
otherwise we are unable to guarantee the operatability and safety of the unit.
Carl Roth GmbH & Co KG is not liable for damage to the machine caused by repairs or parts replacement
which were carried out without using original spares/accessories. Liability is also excluded in the case of
improper use.
3. Areas of Application
The special properties of the hose pump allow its universal use in the laboratory for general research tasks,
in technical laboratories and in many branches of industry such as e.g. the chemical industry, the food
sector, for environmental protection and many more.
Due to the simple sterilisation – only the hose comes into contact with the pumped medium – the pumps are
eminently suitable for use in microbiology, biotechnology, medical engineering and many other applications.
Fig. 2:
Electrical connections
18 Mains switch
19 Fuse
20 Mains connection
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4. Initial operation
Before use, it must be checked whether the available mains voltage corresponds with the voltage given on
the rating plate.
After switching on the voltage supply, the operation control 15 shines.
By turning the speed control 16, the speed can be adjusted from 0 - max .
Turn the direction switch 17 left = anticlockwise rotation, right = clockwise rotation or middle = stop.
5. Tube cartridges and Tubes
5.1 Selection of the correct tube cartridge
Each time a tube is inserted and the tube changed, it must be ensured that the cartridge is designed for the
tube used. Only pump hoses with a wall thickness of 1.6 mm are suitable for use.
Hose ID (mm)/
hose cassette
1.6 / 1.6 (Y375.1) 3.2 / 3.2 (Y376.1) 4.8 / 4.8 (included in delivery)
3-roll head: Pumping
capacity (ml/min)
1.5 - 30 6 - 110 12 - 240
6-roll head: Pumping
capacity (ml/min)
1.2 - 24 4.4 - 88 9.6 - 192
Fig. 3:
Individual parts of the pump head
1 Pressure screw
2 Lock nut
3 Pivot lever
4 Tube cartridge
5 Roller rotor
6 Transport rollers
7 Feed tube
8 Tube clamping
9 Stud bolts
10 Manual nut for dismantling
11 Thrust bearing
12 Drive shaft
13 Driving pin
14 Main body
15 Front plate with bearings
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5.2 Inserting and replacing Tube
Insert or change the tube by:
1. Stop pump and switch off.
2. Turn pivoted lever 3laterally to the left or right in position 2 and remove the cartridge 4.
3. Insert tube 7in the gap formed and pull a bit tight at the ends.
4. Insert cartridge 4, press downward and turn pivot lever 3back into position 1 swinging to the resting
position.
6. Setting the optimum Tube Pressure
1. To check the pressure at the discharge side, insert the end of the tube in a water bottle.
2. Start pump.
3. Loosen lock nut 2by turning to the left. Unscrew set screw 1by turning left until pumping ceases (no
bubbles).
4. Carefully increase the pressure on the cartridge 4by turning set screw 1to the right until air bubbles are
pumped from the discharge side.
5. Turn another ¼ turn to right to ensure pumping reliability.
6. Secure lock nuts 2by turning to the right.
Important:
If counter pressure exists, the pressure setting must be carried out under operating pressure.
This aforementioned setting can now be retained unchanged for the same operating conditions, i.e. for the
same counter pressure and the same pumping tube
Changing the tube is therefore significantly simplified as only the pivot lever 3must be swung out and in (Pos
2 and Pos 1).
7. Changing the Operating Conditions
Renewed setting of the pressure is only required if the operating conditions, tube size or counter pressure
are changed.
Important!
When changing the tube size, it must be ensured that the used cartridge 4 is properly matched to suit
the selected tube size. This can be checked against the lettering on the cartridge.
8. Service and Cleaning
8.1 Outside cleaning
In case of soiling by liquids or after a longer period of use, simply clean with a cloth dampened with
household washing up liquid dissolved in water or alcohol.
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Do not wet clean, only use a damp cloth. For stubborn soiling with chemicals, nutrient solution, etc.
immediate cleaning is necessary so that no difficult to remove encrustations form. Regular lubrication of the
transport roller bearings with silicon oil increases the service life of the rotor and tube significantly!
8.2 Disinfection
In case of biological contaminations, the outer surfaces of the pump and the individual parts of the pumping
head can be decontaminated by wiping down with a mild disinfectant.
Contact manufacturer to clarify whether the intended method causes damage or not before using a cleaning
agent or disinfectant other than those named.
9. Dismantling the pump head
To dismantle, proceed as follows:
1. Remove tube cartridge 4and tube 7
2. Undo manual nuts 10
3. Pull off front plate 15
4. Pull off roller rotor 5and thrust bearings 11 from the stud bolts 9.
Now only the main body of the pump 14 remains with the bearings and drive shaft 12 on the housing and
can be cleaned as described above under „outside cleaning“. If this is not sufficient, the main body can be
removed by loosening the 3-crosshead screws and then cleaned.
Rinse off all removable parts with tap water, if necessary with cleaning additives, dry off and reassemble in
the reverse order.
Attention!
Place the roller rotor 5 on the drive shaft so that the driving pin 13 sits in the groove on the rear of
the roller rotor 5.
Occasional cleaning as described above is urgently recommended after extended use. Adhesion of talcum
residue caused by abrasion of the feed tube and other contamination of the pump head parts, especially on
the transport rollers should be removed regularly.
The tube clamping jaws 8for holding the tube in the inlet and outlet of the pump head should occasionally be
cleaned with alcohol before starting to remove grease, splashed medium or other residues as required, to
ensure secure, slip free tube clamping.
9.1 Turning the pump head
After loosening the 3-crosshead screws of the pump head attachment (see above), the pump head, rotated
by 90°, can be affixed.
10. Malfunctions
The most frequent cause of malfunctions is setting the tube pressure too high. This results in
Jumping of the tube in front of the discharge side clamping jaws,
Reduction or blocking of flow,
Premature wear of the tube and in the worst case tube break,
Overloading of the drive motor,
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In exceptional cases, too loose insertion of the tube – see paragraph 5. (Insert and replace tube) on
changing tube – can also lead to slight jumping at the discharge side clamping jaws. In this case, it is
sufficient to straighten the tube by pulling slightly and increase the pressure somewhat.
Malfunction Possible cause Remedy
Pump
not running
•Pump not plugged into mains
•Fuse defective
•Rotor stuck because wrongly assembled
•Insert plug
•Change fuse 19
•Assemble pumping head according
to instructions in 9.
Reduced pumped quantities,
tube is crushed
•Wrong tube size •Use tube suitable for tube cartridge
Pump does not pump evenly •Tube material used unsuitable for the
medium
•Rollers soiled
•Wrong tube size
•Use suitable tube (see list)
•Dismantle head, clean thoroughly
•Use tube suitable for tube cartridge
If the pump is shut down, especially for several hours or days, the tube should be relieved of the pressure,
otherwise a permanent deformation of the tube can be induced and the pump will no longer work perfectly.
11. Technical Data
Dimensions [WxHxD] 134 x 131 x 190 mm
Weight 1.700 g
Voltage 230 VAC
Fuse T 0.2 A / 250V
Drive DC-Motor with planetary gears
Power delivery 10 W
Flow rate
Tube ID x Thickness ml/min (3-roll head) ml/min (6-roll head)
1.6 x 1.6 1.5 - 30 1.2 - 24
3.2 x 1.6 6 - 110 4.4 - 88
4.8 x 1.6 12 - 240 9.6 - 192
Permissible pressure 1 bar ! In special cases (only after release) max. 3 bar. The tube manufacturer’s
directions must be observed.
We retain the right to make technical amendments!
In case of unauthorised opening, repair or alteration to the appliance, all guarantee and liability
claims are lost
12. Accessories:
Tube cartridges:
For tube inner Ø x
thickness mm
Tube cartridges
Art. No.
1.6 x 1.6 Y375.1
3.2 x 1.6 Y376.1
This manual suits for next models
4
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