[4| ACCESSORIES

This section describes the use of specific rotors and
accessories. More detailed information is often shipped

with the rotor or accessory itself. This section contains
fe fer tabl

Misapplication of any tube can cause tube rupture. To
avoid this, compare the G forces specified in the Speed

and Force Table with the ratings for the tubes you are using.
HHthe-tub .-for the foree-the-eentrif it

4.1 Rotor and Accessory Combination Table
4.2 Derating Table for Dense Samples

4.3 Chemical Resistance Table

4.4 Decontamination Table

Relative Centrifugal Force (RCF or G-force) at a given
speed varies with the rotor, and with the length of the
sample tube, because the distance of the tube's tip from
the center of rotation is different. The Speed and Force
Table indicates the maximum speed and RCF the
CLINICAL can achieve with various rotor/accessory
combinations. The Derating Table specifies reductions in

rpm when spinning samples with specific gravity above 1.2.

The formula to calculate Relative Centrifugal Force:
RCF = (RPM)? x Radius x Constant
* RCF is the g-force.
+ RPM is the speed of the rotor in revolutions per minute.
* Radius is in centimeters usually given as maximum,
rotational distance.
+ Constant is 0,00001118.

Calculations for rpm and g-force for each of the seven
settings: This table will give the approximate speed and
g-force percentages for each setting on the control knob.
First find the rotor and accessory combination in the
SPEED AND FORCE TABLES to get maximum speed and
g-force for setting number 7 (maximum). IEC test the
CLINICAL centrifuge at 120V, 60 Hz or 240V, 50 Hz.

% OF MAX. RPM | % OF MAX. RPM
CONTROL #7 100% 100%
pal a 80% 64%
#5 70% 49%
#4 50% 25%
#3, 35% 12%
#2, 20% 4%
cal 10% 1%

After finding maximum rpm or g-force multiply the
percentage of the run setting to get the approximate (5%)
rpm or g-force for the centrifuge run.

Example. A #215 rotor with 369 multiple carrier can run at
4000 rpm/1975 xg at setting number 7.

Atsetting number 4 the speed will be 4000 x 50% = 2000
rpm and the g-force will be 1975 x 25% = 495 xg

apply, reduce the speed to the G-force listed for your tubes.

_ Corrosive solvents. Your IEC centrifuge is made of materials

designed to resist attack from most laboratory chemicals.
The interior of the rotor chamber is painted steel. Rotors
and accessories placed in the chamber are made of a
variety of materials, including aluminum and polypropylene.
The Chemical Resistance Table shows the suitability of
each material with different classes of reagents.

Section 5.1 describes how to clean and remove corrosion
from the chamber, rotors, and accessories. Follow these
instructions, and clean spills promptly, to minimize the
effects of corrosive chemicals, before any resulting
chemical attack requires more expensive repair. Replace
metal locking nut, rotors, or accessories if they become
cracked, deformed, or gouged.

CLINICALTM


5) MAINTENANCE

- 5.3 Table of Spare Parts

(L_

BASE CUSHION 1719

Cat.No. Description
1728 Rotor Locking Nut LEFT BRUSH RIGHT BRUSH
1780 Brushes, one pair
7 5.4 Service
~ The Clinical centrifuge needs limited service outside of
checking the brushes every 3 months. Replacement parts
— _*__ are available, see diagram below for part number and
description.
WIRING DIAGRAM
i nasi, {
HEIGHT WITH COVER OPEN: 205 IN ROTOR LOCKING NUT 1729
t TOP CAP 42470
AUBBER
X ra PLUNGERLATCH LATCH STRIKER UPPER MOTOR BEARING 998
| ‘COVER GUARD BOWL & HINGE ASSY.
| war
| SPRING WASHER
ez)
{ | ¥
1 we
L 7 4 Kamar
AawaTuRe
fav ates 426C8
. ARMATURE WITH BEARINGS zaov fa007 4364
{ ‘AND PRELOAD WASHER,
i 20v #4263 ee
: Boupe Gere *
sav 4a TH
ZV 9628
\ 2772
uy aN. =
BRUSH & SPRING 17804,
i : BRUSH HOLDER CAP 9036
i BEARING “3508 BRUSH HOLDER 9097
u : BRUSH HOLDER WIRE &
NAME PLATE SPRING “26628
taov e26%0
\ Boy azote
‘SPEED ‘CAPLUG 44241 switch & TRANSFORMER
u CONTROL f20v 30596
wos ov 36597
ono ser
\ f20v" 38205
i BASE Hov 38008
aS

i
H ‘SCREEN aa

36401

t (@ REQUIRED)
i

wT se rEAAE
\ oe maTuce Mag
ee a cet oF GE ORCAPTE

‘SCREW 45250

CLINICALTM

E HN? & Faw SLADE
Sree Wes NT ®


3, OPERATION

3.1 Rotor and Accessories

A balanced load is essential with all centrifuges. An
unbalanced load produces vibration and can damage the

To install a rotor, pull the plunger latch and open the cover,
then lower the rotor straight onto the shaft. Screw the

unit A 2-gram load imbalance, at a speed of 4600 rpm,
imparts force equivalent to 9.1 kg at rest (20 pounds). There-
fore, always ensure that the rotor is loaded symmetrically
and-withra full (or paired) set of tubes. Tube adapters

should also be installed symmetrically.

IEC rotors are dynamically balanced at the factory. IEC
matches removable parts (trunnion rings, shields, cups and
carriers) to within 0.5 gram and stamps the weight on each
piece, Check these markings whenever you interchange
parts, to ensure that opposite parts are matched, Ensure
that the total weight of samples and removable parts
loaded in opposing positions are equal in weight to within
0.5 gram. The position numbers, present on many rotors
and adapters, identify opposing tube positions.

To obtain good dynamic balance, the opposite loads must
not only be equal in mass, but must also have the same
center of gravity. Opposing containers must be alike in
shape, thickness, and distribution of glass or plastic. This
is especially important for large containers.

‘Swinging bucket rotors. Tubes loaded into swinging
bucket rotors must likewise be symmetric around the axis
of rotation. Verify this by rotating the entire rotor 180° by
hand: the loads should be in the same apparent positions
(not in the mirror image). In addition, the loads within each
bucket must also be symmetric around the bucket's pivot
axis. Verify this by ensuring that each bucket is loaded so
that it does not tilt from the vertical when the rotor is at rest.
Maintaining balance within each bucket ensures that the
bucket and the tubes swing out to horizontal when the
rotor reaches operating speed, applying centrifugal force
toward the bottom of the tubes. Failure to achieve full
swing-out causes vibration and premature wear.

You can process samples of different specific gravities in
the same run, provided that the samples of a given type are
balanced around the rotor as though they were the only
ones in the rotor.

knurled metal locking nut (clockwise) onto the shaft to hold
the rotor down (on some rotors, you must remove any
sample tubes first). Tighten the nut with your fingers; do not
use too!

Exception: Polypropylene microtube rotors with shaft
adapter 50009 do not have the shaft protrude through the
top of the rotor. If correctly aligned the locking nut adapter
will screw onto the shaft. Use a coin to tighten the locking
nut adapter.

Rotors with or without a keyway can be used on the
CLINICAL since there is no key on the shaft.

To remove a rotor, first remove any sample tubes, shields,
and other accessories from the rotor. Next unscrew
(counterclockwise) approximately one full turn the knurled
locking nut. Then place both thumbs on the knurled
locking nut and grip the rotor with your fingers. Push your
thumbs down and at the same time pull the rotor up with
yout fingers. This should dislodge the rotor from the shatt. If
unsuccessful, lightly tap the knurled metal locking nut with
a rubber/plastic mallet or other similar type object. The
rotor can now be removed from the shaft.

3.2 Starting and Stopping a Run

The CLINICAL is operated by an eight position control
knob on the front of the unit. There are seven speed/
g-force settings plus an OFF position. Turning the control
knob clockwise increases the speed to the maximum at
setting 7. The settings are stepped positions from OFF to 7.

To stop the run simply turn the contro! knob counter-
clockwise to the OFF position.

An optional 60-minute portable timer (Cat. No. 2351) is
available for 120V, 60 Hz power only. The unit is plugged
into the timer and the timer knob is turned to the desired
spin-time. Turn the CLINICAL speed control knob to
desired setting. The unit will accelerate to speed and
centrifuge. When time runs out the rotor will coast to a
stop. To set times of less then 10 minutes, first turn timer
knob past the ten minute mark, then back to the desired
time setting.

For approximate speed and force information for each
setting see section 4 (Rotor and Accessory Combination
Table).

CLINICALTM


ACCESSORIES

4.1 Rotor and Accessory Combination Table

ROTOR 215 4-Place Horizontal Swinging-Bucket

No. of Tube Trunnion/ | Max Max Max 0.D.xLength (mm)
Places Volume Shield or Speed RCF Radius
(ml) | Carrier | (rpm) (xg) (cm)
4 80 3667365 { 3250 1750 14.8 338x118
4 50 325/320* | 3350 1750 13.9 30.0x116
4 50 (sealed) | 350/323 | 3175 1750 15.4 FALCON/CORNING Conical
4 15 (sealed) | 350/7323_ | 3175 1750 15.2 FALCON/CORNING Conical
4 10 310/356 3550 1850 13.4 17.2x113
12 7 366/1013 3450 | 1725 12.9 16.5x107
16 7 366/1018 3450 1700 12.8 14.2x103
20 5 366/369 4000 1970 WA 12.6x83,

* USE #312 CENTERING RING OR #1106 ADAPTER FOR 15 mL FALCON/CORNING CONICAL TUBES

ROTOR 221 _6-Place Horizontal Swinging-Bucket

No. of Tube Shield Max Max Max 0.D.xLength (mm)
Places Volume Speed RCF Radius
(mi) (rpm) (xg) (cm)
6 10 356 3500 1775 13.0 172x102
6 15 303** 3100 1625 146 172x119

** USE #668 CUSHIONS FOR 15 mL FALCON/CORNING CONICAL TUBE

ROTOR 801 6-Place Fixed Angle 45°

No. of Tube Shield Max Max Max 0.D.xLength (mm)
Places Volume Speed RCF Radius
(mi) (rpm) (xg) (cm)
6 50 305 3900 2050 124 30.0x134
6 50 320 4450 2400 10.8 30.0x115

ROTOR 804S | 4-Place Fixed Angle 45°

No. of Tube Shield Max Max Max 0.D.xLength (mm)
Places | Volume Speed RCF Radius
(mi) (rpm) (xg) (em)
4 50 323 3900 1950 15 FALCON/CORNING Conical

ROTOR 803 6-Place Fixed Angle 45°

No. of Tube Shield Max Max Max 0.D.xLength (mm)
Places | Volume Speed RCF Radius
(mi) (rpm) (&g) (cm)
6 7 356 4750 2575 102 17.2x88
6 10 303 4250 2275 11.3 17.2x102
6 15 302 3800 2050 [127 17.2122

5 CLINICALTM


IEC

OPERATION
MANUAL _ owzcs

CLINICAL

Cat. No. 428 — 120V, 50/60 Hz
Cat. No. 429 — 240V, 50/60 Hz

INTRODUCTION

INSTALLATION 2.1 Receiving the Unit
. 2.2 Site Preparation ..
2.3 Power Configuration .

2.4 Moving the Unit ...

[3] OPERATION 3.1 Rotor and Accessories ...........0..2006 3
3.2 Starting and Stopping aRun ............. 3

{4] ACCESSORIES 4.1 Rotor and Accessory Combination Table ... 5
4.2 Derating Table for Dense Samples .

4.3 Chemical Resistance Table

4.4 Decontamination Table .

{5] MAINTENANCE 5.1 Cleaning.
5.2 Brush Replacement

Table of Spare Parts

Warranty
5.6 Condition of Returned Equipment .

{6] SPECIFICATIONS oo. eee cece ee eee ence e cece teens 14



'4| ACCESSORIES

ROTOR 809 12-Place Fixed Angle 45°
No. of Tube Shield Max Max Max 0.D. x Length (mm)
Places Vvotumie Speed RCF Radius
(ml) (rpm) (xg) (cm)
12 7 356 4450 2250 102 17,288
— 42 10 303 4050 2075 13 17.2x102
12 15 302 3550 1800 127 17,2x122
ROTOR 818 12-Place Fixed Angle 35°
No. of Tube Adapter Max Max Max 0.D.xLength (mm)
Places | Volume Speed RCF Radius
(ml) (rpm) (xg) (cm)
12 50 = 7300 4475 75 12.0x80.0
12 15-20 5762 7300 8275 55 11,0%66.0
12 B-D/ 8761 7300 3525 59 8.0x66.0
Os 2975 5.0
12 0.4/ 5760 7300 3500 59 6.0%66.0
0.25 3050 54
ROTOR 819 10-Place Fixed Angle 35°
No. of Tube Adapter Max Max Max 0.D.xLength (mm)
Places | Volume Speed RCF Radius
(ml) (rpm) &g) (cm)
10 10 = 7400 4650 76 16.1*85.0
10 50 5986 7400 4525 74 12.1%85.0
10 40 5987 7400 4450 73 40.990
10 1.0 5989 7400 4400 72 6.1%52
ROTOR 820 4-Place Fixed Angle 30°
No. of Tube Adapter Max Max Max 0.D.xLength (mm)
Places | Volume Speed RCF Radius
(ml) (rpm) (xg) (cm)
4 30 = 7300 4475 75 25.8x100.0
4 16 5965 7300 4300 72 16.1%109.0
4 5.0 5966 7300 4175 70 42.1112
4 3.0 5967 7300 4050 68 10.995
ROTOR 836 6-Place Fixed Angle 30°
No. of Tube Adapter Max Max Max 0.D.xLength (mm)
Places Volume Speed RCF Radius
(ml) (rpm) (xg) (cm)
6 30 - 7300 4475 75 25.8x100.0
6 16 5965 7300 4300 72 16.1x109.0
6 [50 5966 7300 4175 [70 12.4x112
6 30 5967 7300 4050 [68 10.995

CLINICALTM



1| INTRODUCTION

The CLINICALTM centrifuge is a sturdy, compact
bench-top centrifuge for multi-purpose use in
medical, industrial, and scientific laboratories. This
bench-top unit can achieve centrifugal forces of
4775 xg (5125 xg with hematocrit rotor).

The CLINICAL accommodates a wide variety of
rotors, including angle and swinging-bucket. The
centrifuge can process tubes, microcapillary tubes,
and microsample tubes and up to 300 mL of total
sample volume.

The CLINICAL centrifuge is controlled by a seven
step switch on the front of the machine. This
provides seven different rpm/g-force levels for
each rotor combination.

Depending on the rotor installed, the CLINICAL can
achieve up to 8500 rpm. There are two units: one
for 120V, 50/60Hz (Cat. No. 428) and one for 240V,
50/60Hz (Cat. No. 429).

CLINICALTM


|2) INSTALLATION

2.1. Receiving the Unit

IEC ships the centrifuge in a carton that protects it from
shipping hazards.

S ty
card and return it to IEC.

2.2 Site Preparation

The unit normally resides on a bench-top. The Specifica-
tions at the end of this manual give the dimensions of the
unit. Place the unit on a clean and dry surface to ensure
that the feet grip the surface firmly. Clear the area beneath
the unit of debris and loose materials such as paper.

The surface must be level to ensure quiet, vibration-free
operation. The rubber feet on the base of the unit minimize
the transmission of vibration from the centrifuge to the
bench top. A rigid, stable location is important since an
improperly-loaded unit can vibrate or even move.

2.3 Power Configuration

The CLINCAL uses AC power at 120 Volts, at 50 or 60 Hz
for Catalog Number 428 and AC power at 240 Volts, at 50
or 60 Hz for Catalog Number 429. Variations in line voltage
or frequency will affect the unit's speed and acceleration.

Power cord. The unit requires a grounded power supply
(3-prong power outlet). If your facility does not have
properly-grounded power outlets, arrange for proper
grounding. Do not remove the grounding pin from the
centrifuge power cord.

2.4 Moving the Unit

Before moving, unplug the centrifuge and remove all
accessories and the rotor.

CLINICALTM