IKA RET control Bedienungsanleitung

RET basic

safety control

20000005392

RET basic_082016

Contents

Declaration of conformity

Safety instructions

Page

Declaration of conformity 14

Safety instructions 14

Unpacking 16

Correct use 16

Assembling the stand 16

Operation 17

Setting the operating mode 18

Er 5 18

Setting the safety temperature limit 19

Setting the temperature control mode 19

Maintenance 20

Accessories 20

Error codes 21

Technical data 22

Warranty 23

We declare under our sole responsibility that this product is in compli-

ance with the regulations 2014/35/EU, 2014/30/EU and 2011/65/EU and

conforms to the standards or standardized documents EN 61010-1, EN

61010-2-010, EN 61010-2-051 and EN 61326-1.

For your protection

• Read the operating instructions in full before starting up and follow the

safety instructions.

• Keep the operating instructions in a place where they can be accessed by

everyone.

• Ensure that only trained staff work with the appliance.

• Follow the safety instructions, guidelines, occupational health and safety

and accident prevention regulations.

• Socket must be earthed (protective ground contact).

• Caution - Magnetism! Effects of the magnetic ﬁeld have to be taken into

account (e.g. data storage media, cardiac pacemakers ...).

• Risk of burns! Exercise caution when touching the housing parts and the

heating plate. The heating plate can reach temperatures in excess of 340

°C. Pay attention to the residual heat after switching off.

• Ensure that the mains power supply cable does not touch the heating base

plate.

• Wear your personal protective equipment in accordance with the hazard

category of the media to be processed. Otherwise there is a risk from:

- splashing and evaporation of liquids

- ejection of parts

- release of toxic or combustible gases.

• Set up the appliance in a spacious area on an even, stable, clean, nonslip,

dry and ﬁreproof surface.

• The feet of the appliance must be clean and undamaged.

• Check the appliance and accessories beforehand for damage each time you

use them. Do not use damaged components.

• Gradually increase the speed.

• Reduce the speed if

- the medium splashes out of the vessel because the speed is too high

- the appliance is not running smoothly

- the container moves on the base plate.

• Caution! Only process and heat up any media that has a ﬂash point higher

than the adjusted safe temperature limit that has been set (50 to 360 °C).

The safe temperature limit must always be set to at least 25 °C lower than the

fire point of the media used.

•Beware of hazards due to:

- flammable materials

- combustible media with a low boiling temperature

- glass breakage

- incorrect container size

- overfilling of media

- unsafe condition of container.

•The appliance may heat up when in use.

• The base plate can heat up due to the action of the drive magnets at high

motor speeds, even if the heater is not operational.

• Process pathogenic materials only in closed vessels under a suitable extractor

hood. Please contact

IKA

®if you have any questions.

• Do not operate the appliance in explosive atmospheres, with hazardous subs-

tances or under water.

• Only process media that will not react dangerously to the extra energy pro-

duced through processing. This also applies to any extra energy produced in

other ways, e.g. through light irradiation.

• Please observe the operating instructions for any accessories used.

• Ensure that the external temperature sensor (PT 1000, ETS-D ...) is inserted in

the media to a depth of at least 20 mm.

• The PT 1000 external temperature sensor must always be inserted in the media

when connected.

• Safe operation is only guaranteed with the accessories described in the

”Accessories” chapter.

• Accessories must be securely attached to the device and cannot come off by

themselves. The centre of gravity of the assembly must lie within the surface

on which it is set up.

• Always disconnect the plug before fitting accessories.

• The appliance can only be disconnected from the mains supply by pulling out

the mains plug or the connector plug.

• The socket for the mains cord must be easily accessible.

• The device will automatically restart in mode B following any interruption to

the power supply.

• It may be possible for wear debris from rotating accessory parts to reach the

material being processed.

• When using PTFE-coated magnetic bars, the following has to be noted:

Chemical reactions of PTFE occur in contact with molten or solute alkali metals

and alkaline earth metals, as well as with fine powders of metals in groups

2 and 3 of the periodic system at temperatures above 300 °C - 400 °C. Only

elementary fluorine, chlorotrifluoride and alkali metals attack it; halogenated

hydrocarbons have a reversible swelling effect.

(Source: Römpps Chemie-Lexikon and ”Ulmann”, Volume 19)

For protection of the equipment

• The appliance may only be opened by experts.

• The voltage stated on the type plate must correspond to the mains voltage.

•Do not cover the device, even partially e.g. with metallic plates or film. This

results in overheating.

• Ensure that the base plate is kept clean.

• Protect the appliance and accessories from bumps and impacts.

•Observe the minimum distances between the devices, between the device and

the wall and above the assembly (min. 800 mm).

Assembling the stand

Note: When using bath attachments with a

diameter over 180 mm, please use support

rod in conjunction with an extension. (See

“Accessories”)

)Remove screw plugs (M)

)Remove the protective cap from the support rod

)Put the washer between housing and nut

)Screw the support rod onto the device

by hand until the end stop is reached

)Use an A/f 17 spanner to tighten the

M10 nut

)Accessories should be attached using

cross sleeves

Risk of tipping!

Make sure that the center of mass of the at-

tached device does not protrude over the safe

area indicated with a dashed rectangle.

safe area

• Unpacking

- Please unpack the device carefully

- In the case of any damage a detailed report must be set immediately

(post, rail or forwarder)

• Contents of package

- Heating magnetic stirrer

- Mains cable

- Operating instructions

- Screwdriver

- Temperature sensor PT 1000

- Protection cover

• Use

- For mixing and/or heating liquids

• Range of use

- Laboratories - Schools

- Pharmacies - Universities

This device is suitable for use in all areas except industrial areas.

The safety of the user cannot be guaranteed if the appliance is operated with acces-

sories that are not supplied or recommended by the manufacturer or if the appliance

is operated improperly contrary to the manufacturer’s specifications or if the appliance

or the printed circuit board are modified by third parties.

Unpacking

Correct use

Commissioning

Stirring

Heating

Connecting

external

thermometers

(direct tempe-

rature

control in

the media)

)Move device switch (A) to the OFF position

)Insert the mains power cable into the power socket (K)

)Move device switch (A) to the ON position

¾Operating mode A is preset (see “Operating modes”)

Operation

)Adjust the motor speed using the rotary knob (D)

¾The value selected will be shown on the display (F)

)Set the start point for the agitation function by pressing the rotary knob (D)

¾The displayed value will flash until the desired motor speed is reached

Ensure that the protective film is removed from the base plate before use!

)

Set the safe temperature limit (see “Setting the safe temperature limit for RET”)

)

Adjust the set-point temperature using the rotary knob (C)

¾The value selected will be shown on the display (E)

)

Set the temperature control mode (see “Setting the temperature control mode for RET”)

)Set the start point for the heating function by pressing the rotary knob (C)

The set-point and actual temperatures will be shown alternately on the display (E)

¾When the heating is switched on, the LED “Heating plate” (G) and the LED “Set-point value” (I) will be lit.

¾During agitation and standby operation, the display (E) will show H O t if the base plate temperature is above 50 °C.

)Move device switch (A) to the OFF position

)Detach contact plug (L)

)Attach a DIN 12878 (Class 2) compliant safety contact thermometer or a PT 1000 temperature sensor to the socket (L)

)Move device switch (A) to the ON position

Temperature sensor PT 1000 ¾



The actual temperature for the temperature sensor shown on display (E) will correspond to the temperature of the media.

The LED “external temperature sensor” (H) will be lit

Contact thermometer e.g. ETS-D5 ¾BFollow the operating instructions for the contact thermometer

The LED “decimal point for the temperature display” (J) will be lit

When a contact thermometer is connected, the display (E) will only show the set-point temperature that has been set

Setting operating mode

Operating the device in mode A, B or D

Mode A

All settings will be stored if the device is switched off or disconnected from

the power supply. The agitation and heating functions will be set to OFF

when the device is powered on.

Mode B

All settings will be stored if the device is switched off or disconnected from

the power supply. The agitation and heating functions will be set to ON

or OFF when the device is powered on, depending on the previous status

of the device.

Mode D

In Mode D the device behaves the same as in Mode A with the exception

that:

- The temperature setting must be conﬁrmed by pressing the temperature

knob. To change the temperature setting, turn the temperature knob

until the desired value appears.

The new value ﬂashes for 5 seconds on the display. Conﬁrm the new tempe-

rature setting by pressing the temperature knob, otherwise the temperature

setting value will skip back to its previous value.

Factory setting: mode A

The mode selected will be shown on the

display when the device is started up.

Change the mode

)

Move device switch (A) to the OFF position

)

Press and hold rotary knobs (C and D)

)

Move device switch (A) to the ON position

)

Release rotating knobs (C and D)

D

The set value is indicated on the display (F)

xx A

Note: Mode D is available from software version 40

xx A

(xx: software version) mode

Providing safety protection, Error 5 is taken to recognise that the sensor

has not been placed in the medium when the heating is switched on.

Note: The user can set a value from 1 to 30 min for this time limit

depending on the application.

If time limit is set to 0 min, the Error 5 detection is disabled.

This function will only be active if:

- Sensor temperature is < 50 °C

- Difference target temperature / sensor temperature > 5 K

Factory setting: 0 min

The time selected will be shown on the display when the device is started

up if the sensor is connected.

Changing the Error 5 settings

)

Set target temperature to 5 °C

)

Switch off device

)

Hold down temp knob

)

Switch on device

)

Select time value from 0…30 min (in 1 min steps) by turning the speed

knob

)

Release the temp knob

Note: Error 5 is available from software version 40.

t5 5“

Er 5 setting time limit

Er 5

Setting the safe temperature limit

When using an external PT1000 temperature sensor, the user can choose bet-

ween two types of control:

PI mode

Good control results, minimised overshooting, slow rise in temperature.

2P mode (two-point controller)

Maximum heating rate, increased overshooting

Factory setting: PI mode

Changing the temperature control mode

1. Set target temperature to 2 °C

2. Switch off device

3. Hold down temp knob

4. Switch on device

Setting temperature control mode

The maximum achievable heating plate temperature is restricted by an

adjustable safety temperature limit. Once this limit has been reached, the

device stops heating.

The safe temperature limit must always be set at least 25 °C lower

than the ﬂash point of the media to be processed!

The adjustable maximum heating plate temperature is at least 10 °C under

the set safety temperature limit.

Setting range: [50 °C] to [max. SET temperature + 50 °C]

Factory setting: [max. SET temperature + 50 °C]

Setting the safety temperature limit

After switching on the device, the safety temperature limit can be adjusted

using a screwdriver.

Do not turn the setting screw beyond the clockwise or anticlockwise stop.

This will cause irreparable damage to the potentiometer.

• Set the main switch to the ON position

• Using the screwdriver supplied, turn the “Safe Temp” setting screw to

the clockwise stop.

• Use the temperature rotary knob to set the target temperature to the

desired “Safe Temperature” and wait until the temperature is achieved.

• Turn the “Safe Temperature” setting screw slowly anticlockwise until the

heating function switches off and the display shows Er 25 .

• The “Safe Temp” value is displayed on the screen.

Setting the safety temperature limit as to be done as described.

The value “Safe Temperature” shown on the display only serves for visua-

lization.

Functional test: safety circuit switch-off

• Heat the device to a temperature of over 50 °C.

• Set the safety temperature limit as far to the left as possible (50 °C) and

set the mains switch to the ON position.

• The display will show: Er 25

The device is maintenance-free.

Cleaning

For cleaning disconnect the main plug.

Only use cleansing agents which have been recommended by IKA®.

Use to remove:

Dyes isopropyl alcohol

Construction materials isopropyl alcohol/water containing surfactant

Cosmetics isopropyl alcohol/water containing surfactant

Foodstuffs water containing surfactant

Fuels water containing surfactant

- Do not allow moisture to get into the appliance when cleaning.

- Wear protective gloves when cleaning the devices.

- Please consult with

IKA

®before using any cleaning or deconta-mination

methods, other than those recommended here.

Ordering spare parts

When ordering spare parts, please give:

- Machine type

- Manufacturing number, see type plate

- Item number and designation of the spare part,

see www.ika.com.

Repair

Please send instrument in for repair only after it has been cleaned and is free

from any materials which may constitute a health hazard.

For this you should request the “Decontamination Clearance Certiﬁcate”

from IKA

, or use the download printout of it from the IKA

website

www.ika.com.

Return the instrument in its original packaging. Storage packaging is not suf-

ﬁcient. Also, please use suitable shipping package materials.

Accessories

Maintenance

This activates or deactivates the two-point controller (2P) for the external PT 1000

temperature sensor (2P appears on the display).

When switching on the device, 2P is also displayed next to the operating mode

A/B when the two-point controller is activated.

When the heating function is active in 2P mode, (with external PT 1000 tempera-

ture sensor) the actual temperature flashes - that notifies the user that the process

temperature has been greatly overshot!

• Stirring bars: ø 6 mm, length upto 15 mm

ø 7 mm, length upto 60 mm

ø 10 mm, length upto 80 mm

• RS 1 Set of magnetic stirring bars

• RSE Stirring bar remover

• H 16 V Support rod

• H 16.3 Extension

• H 38 Holding rod

• H 44 Cross sleeve

• ETS-D5 Contact thermometer

• ETS-D6 Contact thermometer

for further accessories see www.ika.com

Error codes

If the actions described fail to resolve the fault or another error code is displayed then take one of the following steps:

- Contact the service department,

- Send the device for repair, including a short description of the fault.

Any malfunctions during operation will be identiﬁed by an error

message on the display (E and F).

Proceed as follows in such cases:

)Switch off device using the main switch (A)

)Carry out corrective measures

)Restart device

rror code Cause Effect Solution

E3 Temperature inside device too high Heating off - Switch off device and allow to cool down

E4 Motor blockage Heating off

Motor off

- Switch off device

- Warning! Only to be carried out by

authorized

service personnel:

Carry out an internal test on the device to check the plug-in connector for the

motor

E5 No temperature increase in sensor at

continuous temperature difference

Heating off - Place the sensor in the medium

- Reduce the volume of the media

- Use a carrier ﬂuid with better heat conductivity properties

- Replace the glass vessel with a metal pot

- Increase the “Time-out” period

E6 Break in safety circuit Heating off - Plug in contact plug (L)

- Plug in PT 1000 contact thermometer / temperature sensor

- Replace faulty connecting cable, plug, or contact thermometer

E24 Surface temperature (temperature of

control sensor):

of the base plate is higher than the set

safe temperature limit

Heating off - Switch off device until the surface temperature of the base

plate is lower than the

selected safe temperature limit

- Set a higher safe temperature limit

E44 Surface temperature (temperature of

safety sensor):

of the base plate is higher than the set

safe temperature limit

Heating off - Switch off device until the surface temperature of the base plate is lower than the

selected safe temperature limit

- Set a higher safe temperature limit

E25 Heating and switching element monitoring Heating off - Switch off device

- Set the safe temperature limit > 55 °C

see also ”Functional check of inactivating the safety circuit”

- Warning! Only to be carried out by

authorized

service personnel: Carry out an internal

test on the device to check the plug-in connector for the heating element

E26 Difference between temperature of safety

sensor and temperature of control sensor

control temperature > (safety tempera-

ture + 40 K)

Heating off - Switch off device

- Warning! Only to be carried out by

authorized

service personnel:

Carry out an internal test on the device to check the plug-in connector for the

temperature sensor

E46 Difference between temperature of safety

sensor and temperature of control sensor

safety temperature > (control tempera-

ture + 40 K)

Heating off - Switch off device

- Warning! Only to be carried out by

authorized

service personnel:

Carry out an internal test on the device to check the plug-in connector for the

temperature sensor

Technical Data

Number of stirring positions 1

Stirring quantity max. per stirring position (H

Motor rating output W9

Direction of rotation right

Speed display set-value LED

Speed display actual-value LED

Speed control Turning knob

Speed range rpm 50 - 1700

Setting accuracy speed rpm 1

Stirring bar length mm 20 - 80

Self-heating of the hotplate by

max. stirring

(RT:22°C/duration:1h)

K15

Heat output W600

Temperature display set-value LED

Temperature display actual-value LED

Temperature unit °C

Heating temperature °C (Room temp.

+ device self

heating) - 340

Heat control Turning knob

Temperature setting range °C 0 - 340

Heating rate heating plate K/min 7

Temperature setting resolution of heating plate K1

Connection for ext. temperature sensor PT 1000

Temperature setting resolution of medium K1

Adjustable safety circuit °C 50 - 360

Set-up plate material stainless steel

1.4301

Set-up plate dimensions mm Ø 135

Automatic reverse rotation no

Intermittent mode no

Viscosity trend measurement no

Break detection stirring bar no

Timer no

pH measurement no

Graph function no

Programs no

Sensor in medium detection (Error 5) yes

Weighing function no

Dimensions (W x H x D) mm 160 x 95 x 270

Weight kg 2.5

Permissible ambient temperature °C 5 - 40

Permissible relative humidity %80

Protection class according to DIN

EN 60529

IP 42

RS 232 interface no

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