Kendro Heraeus CLINIFUGE User manual

Clinifuge

Update Parts List Feb '02

120V 60 Hz

SERVICE MANUAL P/N 12003539

®

TABLE OF CONTENTS

Section Title Doc.- No. Page

1 OPERATING INSTRUCTIONS

(not part of this manual)

1.1 Brochure Clinifuge_E

2 SERVICE

2.1 Servicing Schedule " - " 2-1/2

2.2 Trouble Shooting " - " 2-3/4

2.3 Test Points " - " 2-5

2.4 Cleaning of Instrument Parts " - " 2-6

2.5 Electrical Safety Check " - " 2-6

3 FUNCTIONAL DESCRIPTION

3.1 Block Functions " - " 3-1

3.2 Functions of Main Board " - " 3-1

4DIAGRAMS

4.1 Block Diagram " - " 4-1

4.2 Wiring Diagrams " - " 4-2/3

4.3 Wiring Connection Diagrams " - " 4-4

4.4 Main Board 14 - Component Plan " - " 4-5

4.5 Main Board 14 - Wiring Diagram " - " 4-6/8

4.6 Main Board 178 - Component Plan " - " 4-9

4.7 Main Board 178 - Wiring Diagram " - " 4-10/12

5 DISASSEMBLY OF INSTRUMENT PARTS

5.1 Housing / Casing Parts " - " 5-1

5.2 Electrical Components " - " 5-2

5.3 Drive Components " - " 5-3

5.4 Mechanical Components " - " 5-3

5.5 Service Kit " - " 5-4

5.6 Dismantling and assembling the rotor " - " 5-4

Clinifuge_2

Clinifuge_3

Clinifuge_4

Clinifuge_5

6 SPARE PART FIGURES AND LISTS

6.1 Spare Part Figures " - " 6-1/2

6.2 Spare Part Lists " - "

7 TECHNICAL BULLETINS

8 Preventive Maintenance Checklist

Edition: 02 TABLE OF CONTENTS

24.01.02 AH Page: 0 - 2

Clinifuge_6

Clinifuge_7 7-1/6

Clinifuge

Quality Products – Lifetime Care

Benefits

■ Easy to Use

■ Able to run wide range of

most popular medical tubes

■ Maintenance free

■ Safe

Maintenance free

The Clinifuge is equipped with a brushless
motor, so there is no need to replace
carbon brushes. Beside saving time and
money, this also ensures clean operating
conditions.

Accessories

The Clinifuge comes complete with an
adapter set and an autoclavable rotor.
Made of impact resistant, fiber glass
reinforced polyamide, this rotor offers
high stability and outstanding run
characteristics.

It is easily removed for cleaning in the
laboratory washing machine. An extensive
range of adapters permits centrifugation
of all standard 5, 7, 10 and 15 ml tubes,
including the popular “Monovette”, “Vacu­tainer” and “VenoJect” blood collection
tubes.

Safety

Samples processed in today’s laboratories
often harbor unknown risks. The Clinifuge
complies with international safety stan­dards and is equipped with a lid lock, lid
interlock and steel armoured guard ring.

Clinifuge

▼

Functions

The microprocessor controlled Clinifuge is
equipped with bright digital displays and
touch-pad keys for quick and easy setting
of speed and run-time. The values last
used are stored. To repeat a run, simply
press the start key.

It is also designed with a user friendly self
diagnosis system which indicates faults
directly on the display.

The Heraeus®Clinifuge is functional and sophisticated with an ergonomic design.
It is ideal for use in medical practices, clinical and small laboratories and as a stand-by
unit in large laboratories.

Easy to Use

CLINIFUGE

®

COMPACT CENTRIFUGE

CLINIFUGE

®

COMPACT CENTRIFUGE

Asia Pacific Kendro Laboratory Products (H.K.) Limited · Hong Kong · Tel. [phone] · Fax [phone] · [e-mail]
Europe, Middle East, Africa

Kendro Laboratory Products International Sales · Hanau · Germany · Tel. [phone] · Fax [phone] · [e-mail]

Latin America Kendro Laboratory Products International Sales · Newtown · USA · Tel. [phone] · Fax. [phone] · [e-mail]
USA Kendro Laboratory Products · Newtown · Tel. [phone] · Fax. [phone] · [e-mail]

Internet http://www.kendro.com

Quality Products – Lifetime Care

Registered to ISO 9001. Kendro Laboratory Products meet or exceed stringent quality and product safety standards: CE for the European Union, and UL, cUL or
CSA standards for North America. ©2000 Kendro Laboratory Products. All Rights Reserved. S00254

Printed in Germany 5C 03/00 N 4t Künzel

TECHNICAL DATA

TECHNICAL DATA

ORDER NUMBERS

ORDER NUMBERS

Model Order No.
Clinifuge 120 V; 60 Hz 75003539

Accessories for Clinifuge
Angle rotor

1)

75003760

Max. speed (rpm) 5000
Max. RCF (x g) 2600
Max. capacity (ml) 12 x 15
Max. radius (cm) 9.65
Acceleration time (sec) 40
Braking time (sec) 45

Accessories for angle rotor 75003760
Tube volume Type of tube Dimension (mm) Tubes Type of Adapter

(ml) Diam. x Length per rotor adapter Order No.

7 Glass tubes (DIN) 12 100 12 yellow 75003227

1)

15 Glass tubes (DIN) 16 100 12

4)

–

3-5 VenoJect II (Terumo) 13 75 12 cream + 75003227

1)

rubber pad

7 VenoJect II (Terumo) 13 100 12 yellow 75003227

1)

9-10 VenoJect II (Terumo) 16 100 12 sleeves 75003763

3)

3-5 Vacutainer (BD)

2)

13 75 12 cream + 75003227

1)

rubber pad

7 Vacutainer (BD)

2)

13 100 12 yellow 75003227

1)

7 Vacutainer (BD) 16 75 12 sleeves + 75003763

3)

rubber pad 75003266

10 Vacutainer (BD)

2)

16 100 12

4)

–

15 Vacutainer (BD) 16 125 6

4)

–

4 Sarstedt Monovette 11.5 83.5 12 cream 75003227

1)

5 Sarstedt Monovette 13 90 12 cream 75003227

1)

7.5 Sarstedt Monovette 15 92 12

4)

–

9 Sarstedt Monovette 16.5 92 6 rubber pad 75003762
12 (Urine) Sarstedt Monovette 16.5 101.5 6

4)

–

Urine tubes BD, Terumo 16 100 12 sleeves 75003763

3)

1)

included with centrifuge

2)

tube incl. Hemoguard cap

3)

included with rotor

4)

not necessary

The adapter set 75003227 will contain the yellow and cream adapters andrubber pads.

Clinifuge 120 V version
Description Microprocessor controlled table top centrifuge

Maximum speed (rpm) 5000
Minimum speed (rpm) 1600
Maximum RCF (x g) 2600
Minimum RCF (x g) 270
Maximum capacity (ml) 12 x 15 (glass)
Controller Microprocessor controller for time and speed
Drive Brushless induction motor, microprocessor controlled
Runtime 1–99 min. and continuous operation (Hold)
Program memory Stores values last entered, unlimited
Safety Lid lock and lid interlock, steel armoured guard ring
Design Fibre glass reinforced polyamide housing with high noise and

vibration insulation properties

Dimensions (H xWxD) (mm/inch) 240 x 284 x 375 /9.5 x 11.2 x 14.8
Weight (incl. rotor) (kg / Ibs) Approx. 10.7 /23.5
Power consumption (W) 65

Set the required speed…

…and set the required time

With the “start” button, repeat
runs can easily be recalled

For Ordering or Technical Information

Service

2.1 Servicing Schedule (yearly procedure recommended)

2.1.1 Maintenance Routine without Dismantling the Centrifuge

2.1.1.1 Electrical Installation and Safety

• Switch OFF the centrifuge and disconnect the unit from power, check voltage supply and mains

fusing (16 Amps, slow blow characteristic)

• Check condition of plug and wall socket - (let) replace defective parts

• Check cord condition and fixing / connection - replace or refit it

2.1.1.2 Location and Mech anic a l In s tall ati on

• Check the base (ground, table, lorry with lockable wheels etc.) For resonance-free and stable

conditions

• Check for a well ventilated place and sufficient distances to walls or adjacent equipment, without

exposure to direct sunlight

• Check the leveling of instrument (use a spirit level)

2.1.1.3 Lid Locking Mec han is m an d Safety

• Connect the centrifuge to power and switch ON

• Check for easy lid closing and self-acting lid opening - if in disorder, readjust lid’s swivel hinge

and/or lock assembly

• Check the central rubber gasket for lid sealing and replace it, if damaged

• For checking the safety: start the centrifuge, let it shortly run and stop it, the lid must not be

unlocked by the microprocessor until the “end” message is shown on the display - if safety circuit is
out of function, replace the main board

2.1.1.4 Cleanliness of Spin Chamber and Motor Casing

• Open the lid and remove the rotor (for loosening turn the central winged nut anti clockwise from the

motor shaft)

• Clean the spin chamber with a dry and absorbent cloth (remove all dust and moisture - see also 2.5

Cleaning)

• Check the cleanliness of the motor casing and take care of the annular slot around the motor shaft:

penetrating fluids can damage the upper motor baring, remove fluids with an injector and/or

absorbent paper

2.1.1.5 Rotor and Accessories Condition and Sealing

• Check the condition of rotors and accessory parts (especially all supporting or stressed partitions):

the rotor and/or accessory parts must not be used any longer, if there are visible traces of
mechanical damage

2.1.1.6 Rotor Fixing and Motor Sha ft

• Check the trouble-free condition of the locking nut and replace it in case of malfunction

• High performance rotors made of plastic have a limited service life. Due to safety reasons they

have to be exchanged after 10,000 cycles or after being in use for five years. The expiry date can
be seen on the date clock in the rotor lower shell. The two-digit number in the middle represents
the year and the arrow points to the expiry month. The number of cycles may be checked at any
time by closing the lid and keeping both “set” keys pressed. The accumulated rotor cycles will be
displayed in the speed display.

• Check the condition of the drive motor shaft: the centrifuge must not be used any longer, if the

drive shaft is damaged (bend, thread is worn out, horizontal grooves etc.)

2.1.1.7 Temperature Level

• Check the air inlet underneath the lid and under the bottom plate for free ventilation, insufficient air

flow will lead to temperature rise of rotor, motor and electronic parts

Edition: 03 Servicing Schedule

17.04.02 AH Page: 2-1

Clinifuge

Service

2.1.2 Maintenance Routine after Dismantling the Centrifuge Casing

2.1.2.1 Motor Support ing E lements

• Check the supporting and damping elements of the drive motor and replace them in case of

increased rubber abrasion or abundance of imbalance but at least every 3 years

2.1.2.2 Braking Circuit

• Check the function of the braking circuit (even brake effect)

2.1.2.3 Lead and Screwing Connection

• Check the terminal and plug connections of all leads and on all boards and electrical components,

tighten all loosen screwing connections, refit or replace defective parts

• Check the screwing connections of all boards, mechanical and electrical components and re-

tighten them if necessary (use screw locking lac for motor mounts and lid lock assembly)

2.1.2.4 Protection Earth Core and Grounding Connections

• Check the protection earth core for continuity and all grounding plug connectors

• Check isolation resistance and accessible current (see 2.5)

Edition: 03 Servicing Schedule

17.04.02 AH Page: 2-2

Clinifuge

2.2 Trouble Shooting

Error

Indication

Displays

remain

dark

Displays

are

illuminated

, but drive

doesn’t

start

Drive

makes

noises-no

good

separation

result

Drive

doesn’t

decelerate

Lid cannot
be opened

by key

pressure

at

standstill

Error Cause

No mains

voltage supply

No low voltage

supply

Motor over-

temperature

switch has

tripped

Rotor didn’t

turn

Motor didn’t

start

Mechanics

Electrical

No brake

current

Lid coil is not

or not

sufficiently

supplied with

voltage

Faulty lid coil Faulty winding of coil Replace complete lid lock

Lid is not

correctly

locked

Service

Possible Error

Source

Mains fuse or circuit

breaker failed
Defective mains cord Check instrument cord, replace defective parts
Defective unit fuse or

fuses on main board

Faulty connection

from indication to

power board

Faulty indication or

power board

Motor temperature is

higher than 120°C

Rotor is jammed

Motor is jammed Replace motor

Connections inter

drive and main board

Defective drive

Faulty condenser Replace condenser

Faulty main board Remove main board completely and replace it
Wear out of motor

rubber mount

Motor bearing Change motor completely

Defective terminal

connection, faulty

lead or motor winding

Defective driving Replace main board

Faulty main board Remove main board completely and replace it

Missing mains voltage

PTC resistor has

released

Faulty driving or triac

circuit

Lid bolt is jamming Push lid into lock and press the key again

Lid is deformed or

disadjusted

Check fuse or circuit breaker, replace or switch

Replace it, if fuse blows again, disconnect

electrical parts, otherwise replace main board

Check connections on CPU, indicat. Board and

connecting leads, replace defective parts

Let motor cool down, then check temperature

Check for easy rotor movement, remove any

Check terminal and lead connections, replace

Check resistance of motor windings, replace

Check voltage on motor terminal and winding

resistances -see test points on boards

Remedy see above, manual opening only at

After a waiting time of 1-2 minutes press key

Corrective Procedure

on again

Replace main board

switch and leads with Ohmmeter

jamming objects

faulty parts

faulty parts

Replace motor rubber mounts

standstill

again

Replace the complete main board

Readjust the lid centrically

Edition: 03 Trouble Shooting

17.04.02 AH Page: 2-3

Clinifuge

Error

Indication

“LId“

message

appears in

speed

display

“OPEn“

message

in speed

display

“br “

message

appears in

speed

display

„E-“„ 2“

message
appears in
speed field

„E-“„ 3“

message
appears in
speed field

„E-“„12“

message
appears in
speed field

All dots in

the display

are

illuminated

Error Cause

Lid was
opened

manually

during run

Protection

circuit (15V)

for lid control

was

interrupted

during the run

15V supply

circuit is

interrupted at

standstill

Rotor comes

to standstill

without braking

force

Maintenance

counter
expired

No brake

current

Checksum

error of NV-

RAM

Disturbed data

transfer from

NV-RAM

Maintenance

counter
expired

Service

Trouble Shooting

Possible Error

Source

Forbidden

intervention

Emergency opening

can only be used at

standstill

Defective micro

switch or leads or

connectors to micro

switch are interrupted

Defective micro

switch or leads or

connectors to micro

switch are interrupted

Short interruption of

mains supply

Rotor has reached

10000 cycles

Faulty main board Remove main board completely and replace it

NV-RAM is not

initialized or false

Faulty main board Remove main board completely and replace it

Rotor has reached

10000 cycles

Close lid immediately, turn power off/on, wait

for termination of br phase until end message

Check leads and connectors to micro switch, in

case of a faulty micro switch, replace lid lock

Wait for rotor standstill (appr. 75 seconds) and

Replace rotor, NV-Ram and motor supports

Check NV-RAM and socket, insert the correct

Replace rotor, NV-Ram and motor supports

Corrective Procedure

appears

device completely

Check leads and micro switch

re-start

(Service Kit)

NV-RAM

(Service Kit)

Edition: 03 Trouble Shooting

17.04.02 AH Page: 2-4

Clinifuge

Service

2.3 Test Points

Test Points Unit value Conditions

Mains terminal XA

Lid micro switch

Plug XB

Terminal XC

Motor voltage

Motor current I

Motor windings

resistance 20°C

-insulation value
Lid solenoid

terminal XD

120V AV All given voltage and current values refer either to 120V (±10%)

160V DC Voltage drop by open lid at 120V units

Rotor #3760 not loaded, in each case measured after reaching the
selected speed
1600rpm
4000rpm
5300rpm
at the beginning of the braking phase
at the end of the braking phase
Rotor #3760 not loaded, in each case measured after reaching the
selected speed with a soft iron or digital effective measuring
instrument
1600rpm
4000rpm
5300rpm
maximum during acceleration
maximum during braking phase

switch OFF unit, pull off motor plug
mains winding (black – green)
auxiliary winding (black – yellow)
resistance inter each phase and motor casing

switch OFF unit,
resistance at 20°C (68°F)

M

approx.

58V AC
105V AC
120V AC

80V AC

75V AC

Approx.

1,2A
1,2A
0,8A
3,3A
2,0A

14,6Ω
14,6Ω

> 10MΩ

29Ω

Edition: 03 Test Points

17.04.02 AH Page: 2-5

Clinifuge

Service

2.4 Cleaning of Instrument Parts
ATTENTION - WARNING!

The electrical and electronic components must not be cleaned with moist detergents!

For Cleaning the centrifuge housing or its accessories see Operating Instructions section 1
(maintenance and care).

• Electronic components

Clean dusty components carefully with a dry and soft brush and remove loose dust with a vacuum
cleaner

• Vent holes

Remove dirt from vent holes of front panel or bottom plate using a brush and vacuum cleaner

2.5 Electrical Safety Check
ATTENTION!

A final electrical safety check must be performed after each maintenance and/or repair!

• Resistance check of protective conductor

The measuring value of the resistance between the mains plug's grounding pin and the grounding
conductors of the motor, electronic chassis and the casing must not exceed 200 mΩ.

• Insulation resistance Check

Check also the insulation resistance between the poles of the mains plug and the grounding
conductor; the resistance value must be more than 2 MΩ.

• Accessible current measured to EN 61 010

The accessible current must not exceed 3.5 mAmps in single fault condition (interrupted protection
earth wire)! In accordance with the EN61010, IEC1010 and UL3101 such a fault condition can be

reproduced by the following measuring circuit.

Steckergehäuse / plug-in casing

10k

Ω

±5%

0,022µF

±5%

I [mA] = U [mV] / 500:

max max

≡

L (N)

N (L)

PE

500

±1%

0,22µF

±5%

Ω

Körperstrom:

accessible current:

U = 1750mV I = 3,5mA

Edition: 03 Cleaning, Electrical Safety Check

17.04.02 AH Page: 2-6

Spezifaktionen für Meßgerät

- TRMS, DC - 5kHz oder mehr

- Eingangswiderstand > 1M

- Toleranz 5% oder besser

- Crest Faktor 5 oder besser

V

AC

Specifaction for the meter

- TRMS, DC - 5kHz or more

- Input resistance > 1M

- Tolerance 5% or better

- Crest Factor 5 or better

Clinifuge

Ω

Ω

FUNCTIONAL DESCRIPTION

3 Functional Description

3.1 Block Functions

The Clinifuge is a microprocessor controlled laboratory tabletop centrifuge with induction drive motor
and integrated air cooling system.
The unit incorporates following boards and components (see block diagram 4-1):

· Main board 14 or main board 178 with microprocessor part and power electronics

· Key and indication board (programming: MEGACONTROL simple), part of the main board

· 1 phase induction motor with phase shift capacitor and integrated thermal over temperature

switch (C. O. 125°C)

· Double lid lock assembly with solenoid and integrated micro switch (mechanical bolt keeper,
magnetically dislocking), attached in front on both sides of the vessel

3.2 Main Board Functions

The main board 14 / 178 is mounted completely behind the front panel. The components on main
board are arranged in following groups (see wiring diagram page 4-2).

· Board fusing (2 x 6.25 Amps. slow blow feature)

· Noise filter

· Power pack for low voltage supply of microprocessor part and power electronics (potential

separated by transformer)

· Triac control circuit for lid solenoid ( DC supply via bridge rectifier)

· Bridge rectifier for DC intermediate circuit supplying brake path and frequency converter

· Microprocessor part with CPU

· Exchangeable NV-RAM containing specific data of the unit

3.2.1 Power Pack

The power pack (transformer, bridge rectifier and voltage regulator) generates:
U1 = 5V: supplies central processor, key and indication board reference potential: protective

conductor (GND)

3.2.2 Intermediate Circuit with Brake Path and Frequency Converter

The DC intermediate circuit serves as an energy store between the AC power input and the
transmitted motor performance. The intermediate circuit consists of a bridge rectifier (4 diodes) and
two serial connected reservoir capacitors. The intermediate circuit is over voltage protected.

Edition: 02 Block Functions, Main Board Functions

17.01.02 AH Page: 3-1

Clinifuge

DIAGRAMMS

Main Board (Controller, )

Key and Indication Part

NV-RAM

µC

Main Board (Power Electronics)

XA

XD

XF

XF

Clinifuge

XC

speed

TM

set

time

set

F1

F2

lid

quick

run

start
stop

XA

S0

Edition: 02

23.01.02 AH

S1
S2

Lid Switch

Y1
Y2

Unlocking Solenoid

C1

Phase shift

capacitor

Block Diagram

4-1

120°C

M1

Motor

Mains

Mains Switch

Legend

solder connection

plug connection

Clinifuge

Main Board

DIAGRAMMS

Transformer, Rectifiers and Regulators

7805

A1=GND

5V (VCC)

Mains Switch

Mains

S0

PE

Chassis

PE

Motor

XL

XN

XPE

F1

F2

F1, F2

6,25 AT

Noise

Filter

NTC

PTC

XC/1 XC/2

Y1

Y2

J

J

DC intermediate circuit

XA/1

5

1

2

3

R4

XA/2

S2S1

Lid SwitchLid solenoid

Brake Resistor

4

Edition: 02

23.01.02 AH

Schematic Diagram

4-2

Clinifuge

DIAGRAMMS

H1…H8 S1…S7

8

A,B,C,D

E,F,G,DP

Main Board Part 2

Y1/Y2

5

XG XG

Current Control Res.

RESET

µP - Part

1

2

3

4

Edition: 02

23.01.02 AH

i

dyn

XC/1 XC/2

Motor and run capacitor

125°C

C

L

C = 12µF

L

10

Physical Separation

HGTPs

14

i

dyn

“LId”...

Schematic Diagram

4-3

i

dyn

"LId"

CPU

4

NV-RAM

Key and indication part

Clinifuge