IKA RW 16 basic User manual

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PERATING INSTRUCTIONS

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IKA®WERKE

RW160995EU

Reg.-No. 4343-01

IKA RW 16 basic

25 510 00

RW160995EU 12.11.2001 13:39 Uhr Seite 1

Page

Safety instructions 10

Correct use 11

Unpacking 11

Useful details 11

Drive 11

Motor protection, safety devices 11

Speed 12

Commissioning 12

Mounting extension arm 12

Switching apparatus on 12

Output shaft 13

Maintenance and cleaning 13

Accessories 13

Technical data 13

Permitted IKA stirrer tools 14

Associated standards and regulations 14

Guarantee 14

Spare parts list 66

Spare parts diagram 67

Never operate the equipment with the stirrer tools rotating

freely. Ensure that parts of the body, hair or items of clothing

cannot be trapped by the rotating parts. Pay attention when

setting the speed to any imbalance of the stirrer tools and

possible spraying of the medium to be stirred. Use a stirrer shaft

protection device!

The equipment is not suitable for manual operation. Please follow

the relevant safety instructions and guidelines, and occupational

health and safety regulations for use in the laboratory.

Avoid knocks and impacts on the lower end of the shaft and the

chuck gear teeth. Even minor, invisible damage can lead to im-

balance and uneven shaft action. Careful handling guarantees

safe working and the long life of the equipment.

Imbalance of the output shaft, the chuck and in particular the

stirring tools can lead to uncontrolled resonant vibrational

behaviour of the equipment and the whole assembly. Glass

apparatus and stirrer containers can be damaged or shattered by

this. It can cause injury to the operator, as can the rotating stirring

tool. If vibration of the equipment is noticed, the speed must be

reduced immediately in all cases until no more vibration occurs.

In this case exchange the stirring tool for one without imbalance

or remedy the cause of the imbalance.

Operating with a freely rotating shaft end is dangerous. Therefore

for safety reasons the stirrer tool is permitted to project over the

upper edge of the housing only when the machine is not running.

For correct operation, the rubber diaphragm must always be com-

pletely closed. Take care to ensure that the shaft never runs

directly in the rubber diaphragm and any friction with rotating

parts (stirrer shafts) is excluded.

The machine may only be opened by trained specialists - even

during repairs. The machine is to be unplugged from the mains

before opening. Live parts inside the machine may still be live for

some time after unplugging from the mains.

10 RW160995EU

CONTENTS

Safety instructions

RW160995EU 12.11.2001 13:39 Uhr Seite 10

The basic RW 16 stirrer is suitable for stirring and mixing fluids

with low viscosity. It is designed for use in laboratories. For

correct use, the equipment must be secured to a fixed object.

Please unpack the machine carefully and inspect for damage. It is

important that any transit damage should be noted at the time of

unpacking. In certain circumstances it may be necessary to in-

vestigate immediately (post, rail or freight forwarder). The guaran-

tee covers: One RW 16 stirring machine, one extension arm, one

hexagonal socket screw, one hexagon socket offset screw key

and operating instructions.

In buying this machine you have chosen a high quality product.

Ease of use is guaranteed with its handy shape and simple ope-

ration. The housing offers protection against ingress of liquids.

The materials used and their precise identification make recycling

possible and simple, and enables re-use of the parts. The

generously proportioned cooling surfaces enable distribution and

transference of heat to be as even as possible. The two metre

long mains lead makes it possible to work on stands - even with

high glass apparatus under vapour extraction hoods - without

extension leads. The precision stirrer shaft is designed as a hol-

low shaft to allow the stirrer shanks to be inserted.

The speed of the RW 16 basic stirrers can be infinitely adjusted

by electronic means. The ball bearing equipped DC motor has a

quiet synchronous belt drive. The motor is controlled via a com-

puter-controlled speed regulator using pulse-width modulated vol-

tage (PWM). The whole drive unit is maintenance-free.

The machine is suitable for continuous operation. The motor cur-

rent is electronically limited. The machine has an anti-stall and

anti-overload system. If a fault occurs, a safety circuit immediate-

ly switches off the motor permanently via a relay.

To start the machine again after a fault, please operate the mains

switch. If the machine still does not work, please contact our

Service department.

RW160995EU

Unpacking

Drive

Useful facts

Motor protection; safety devices

Correct use

RW160995EU 12.11.2001 13:39 Uhr Seite 11

The speed is set using the front knob(A). The scale from 1 to 10

corresponds to a speed range for the output shaft of 40 to 1200

rpm under nominal load. With no load the speed at maximum set-

ting of the knob (right position) is 1600 rpm, at minimum setting

of the knob (left position) 0 rpm. If viscosity increases due to the

process, the speed reduces gradually. If, however, the viscosity is

reduced by eg the addition of thinning agents, the speed increa-

ses somewhat. This can be balanced out in both cases by re-set-

ting the knob accordingly, provided torque does not exceed maxi-

mum torque. Please note that fluctuations in mains voltage wit-

hin the permitted tolerances may also cause minor fluctuations in

speed.

For correct use, the stirrer must be secured to a stable object

(eg R1822) with a cross-sleeve (eg R181). For safety reasons the

stirrer container should always be fixed with a tension-holder

(eg RH1).

For diagram see (Fig. 2)

The extension arm (X) has a step at its end with a cross hole. This

end is used to insert the extension arm into the hole on the back

of the machine. To do this, the cross hole in the extension arm

must point upwards. It must be brought into alignment with the

hole in the fixing rib on the back of the machine. To do this, press

the extension arm until it catches in the hole. Please do not use

force to do this. If it proves difficult to insert the extension arm,

light oiling may help. The hexagonal socket screw (Y) used for

fixing is inserted in the hole in the housing from above. The screw

is tightened using the hexagon socket offset screw key (Z).

Check that the extension arm is firmly seated. The screw may

loosen with vibration. Therefore as a precaution check from time

to time that the extension arm is still securely attached.

If necessary tighten the hexagonal socket screw.

You can also secure the hexagonal socket screw with adhesive,

but you are then unable to release the connection later

Check whether the voltage given on the type plate corresponds

to the available mains voltage. The socket used must be earthed

(fitted with earth contact). If these conditions have been met, the

machine is ready to operate when the mains plug is plugged in.

If these conditions are not met, safe operation is not guaranteed

and the machine could be damaged.

The machine is started by pressing the mains switch (B) into

position “l”. A green control light (C) signals the operating

condition “ON”.

During commissioning of the machine the output shaft starts to

run at the last speed set. Therefore check the setting of the con-

trol knob. Also ensure that the speed set is suitable for the test

texture selected. If in doubt, set the speed knob (A) to the lowest

speed (left-hand position).

12 RW160995EU

Commissioning

Mounting the extension arm

Speed

Switching on the machine

RW160995EU 12.11.2001 13:39 Uhr Seite 12

The clamping chuck and output shaft permit all standard

commercial stirrer tools up to 10mm diameter to be gripped and

screwed in. The opening on the top side of the housing is closed

with a slotted rubber diaphragm. It is, however, possible for stir-

ring shafts to push out over the top edge of the housing eg during

change of container.

If it becomes necessary - depending on the layout of the equip-

ment - to allow the shaft end to project over the edge of the hou-

sing during operations, the rubber diaphragm should be removed.

Instead a stirrer shaft cover, which can be obtained as an acc-

essory, must be placed on the housing. If the stirrer shaft cover

is removed again, the rubber diaphragm must be pressed into the

housing opening again so that this is closed. This is the only way

of ensuring safe working and preventing any fluids from penetra-

ting the equipment.

Please see section ”Safety Instructions”!

The stirrer is maintenance-free. It is subject only to the natural

wear and tear of components and their statistical failure rate.

When ordering spare parts, please give the manufacturing

number shown on the type plate, the machine type and the

name of the spare part.

Please send in equipment for repair only after it has been clea-

ned and is free from any materials which may constitute a

health hazard. Only use water with a detergent additive contai-

ning a surfactant for cleaning, or for heavier soiling isopropylal-

cohol.

R 1822

Fixed plate

RH 1

Tension-holder

R 181

Cross-sleeve

FK 1

Flexible connection

DZM 1

Speedometer; RLS 8 x 33

Speed range under nominal load: min

-1 40-1200

Max. stirrer speed:

Ncm 40

Permitted switched-on time: %100

Speed setting:

Speed adjuster with pulse width modulator

Speed indicator: Scale on knob

Nominal voltage:

VAC

230±10%

EURO

VAC

115±10%

USA

Frequency: Hz 50 / 60

Input power: W75

Output power: W55

Output on stirrer shaft: W53

Total efficiency: 0,71

Protection type to DIN 40 050: IP42

Excess voltage category: II

Degree of pollution: 2

Overload protection: El. current limitation

Fuses (on mains plate): A4 T (IKA ident.no. 25 851 00)

RW160995EU

Output shaft

Maintenance and cleaning

Accessories

Technical data

Protection measures:

Class Protection device Recommended use

No additional protection

Used only on equipment where

failure of the controls does

not represent a hazard.

The operating conditions should be monitored at regular intervals.

RW160995EU 12.11.2001 13:39 Uhr Seite 13

A Drive

(maintenance-free)

: DC motor with 1-level synchronous belt drive

Environmental temp.: °C +5 to+40

Environmental humidity: %80

Operating position:

on fixed object, tension filler facing down

Max. qty. of stirred water: ltr 10

for viscosity: LV

Clamping chuck tension range: mm 0,5 -10

Hollow shaft, internal dia.: mm 11

Extension: mm 13x160long

Housing: Al diecast, thermoplast. plastic

Dimensions excl. extension: mm (BxTxH)

80x190x175

Weight with extension and

clamping chuck: kg 2,8

Speed deviations:

Adjustment precision: %10

When loaded: %0 load nmax= 1600 min-1 (nom.)

%100 load nmax= 1200 min-1 (nom.)

Max. speed rpm

R1342 Propeller stirrer 4fl 2 000

R1381 Propeller stirrer 3fl 2 000

R1382 Propeller stirrer 3fl 2 000

R1389 Propeller stirrer 3fl PTFE 800

R1352 Centrifugal stirrer 2 000

R1311 Turbine stirrer 2 000

R1312 Turbine stirrer 2 000

R1335 Kneading stirrer 2 000

R1330 Anchor stirrer PTFE 1 000

Associated EU guidelines

EMV guidelines: 89/336/EC

Machine guidelines: 89/392/EC

Construction in accordance with the following safety standards:

EN 61 010-1 /VDE 411-1 EN 292-1, -2

EN 50 082-1 EN 414

EN 55 014-1 IEC 1010-1

EN 60 555-2, -3 UL 3101-1

EN 60 204-1 CAN/CSA C22.2 (1010-1)

You have purchased an original IKA laboratory machine which

meets the highest engineering and quality standards.

In accordance with IKA guarantee conditions, the guarantee peri-

od is 12 months. For claims under the guarantee please contact

your local dealer. You may also send the machine direct to our

works, enclosing the delivery invoice and giving reasons for the

claim. You will be liable for freight costs.

14 RW160995EU

Viscosity

mPa · s

VLV very low viscosity 0 .......... 100

water up to

thin-flowing oil

LV low viscosity 100....... 1000

thin-flowing oil up to

thick-flowing oil

MV medium viscosity 1000.. 10000

thick-flowing oil up to

honey at approx. 20 °C.

HV high viscosity 10000 100000 honey at approx. 20 °C

up to printing inks

Permitted IKA stirrer tools

Associated standards and regulation

Guarantee

RW160995EU 12.11.2001 13:40 Uhr Seite 14

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