IKA RCT basic Bedienungsanleitung

20000005393

RCT basic_072017

RCT basic safety control

Page

Declaration of conformity 3

Safety instructions 15

Unpacking 17

Correct use 17

Assembling the stand 17

Operation 18

Setting operation mode 19

Er 5 19

Setting the safe temperature limit 20

Controlling the Medium temperature limit via 21

ETS-D or Contact Thermometer

Setting the temperature control mode 22

Maintenance 22

Accessories 22

Error codes 23

Technical Data 24

Warranty 25

For your protection

•Read the operation instructions in full before starting up

and follow the safety instructions.

•Keep the operation 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).

Before starting the device for the ﬁrst time, ensure that the con-

nector cable is suitable for the type of socket used and that a

safe protective earth connection is assured.

•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 temperatu-

res in excess of 310 °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, non-slip, 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.

Contents

Safety instructions

Source language: German

• 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 mag-

nets at high motor speeds, even if the heater is not operational.

• Process pathogenic materials only in closed vessels under a suitab-

le extractor hood. Please contact IKA®if you have any questions.

• Do not operate the appliance in explosive atmospheres, with

hazardous substances or under water.

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

energy produced 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 in-

serted in the media when connected.

• Safe operation is only guaranteed with the accessories descri-

bed in the ”Accessories” chapter.

• Accessories must be securely attached to the device and cannot

come off by themselves. The center 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 ﬂuo-

rine, 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).

>100 mm

>100 mm >100 mm

Unpacking

• Unpacking

- Please unpack the device carefully

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

immediately (post, rail or forwarder)

• Contents of package

- Heating magnetic stirrer

- Mains cable

- Operating instructions

- Screwdriver

- Protection cover

- Temperature sensor PT 1000

• 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 accessories 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.

Correct use

Assembling the stand

Note: When using bath attachments with

a diameter over 180 mm, please use sup-

port rod in conjunction with an extensi-

on. (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

attached device does not protrude over

the safe area indicated with a dashed

rectangle.

safe area

Operation

Commissioning

Stirring

Heating

Connecting

external

thermometers

(direct temperature

control in the media)

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

)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

DThe unit will be set to factory setting mode A (see “Operating modes”)

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

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

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

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

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

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

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

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

)Set the start point for the heating function by pressing the rotary knob (C), also on use of a contact thermometer

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

LDWhen the heating is switched on, the LED “Heating plate“ (G) and the LED “Set point value“ (I) will be lit

The maximum temperature that can be set for the heating plate is 310 °C

LDDuring agitation and standby operation, the display (E) will show HOt if the 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

LTemperature sensor PT 1000 D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.

LContact thermometer e.g. ETS-D5 DFollow the operating instructions for the contact thermometer

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

DWhen a contact thermometer is connected, the display (E)

will only show the set-point temperature that has been set

Operating the device in mode A, B or D

Mode A

All settings will be stored if the device is switched off or disconnec-

ted 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 disconnec-

ted from the power supply. The agitation and heating functions

will be set to ON or OFF when the device is powered on, depen-

ding 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

temperature 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

Setting operation mode

xx A

(xx: software version) mode

Er 5

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

Setting the safe temperature limit

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 ﬁre 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 anticlo-

ckwise stop. This will cause irreparable damage to the potentio-

meter.

• 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 tempera-

ture 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 visualization.

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

Controlling the Medium temperature limit via ETS-D or Contact Thermometer

The preferable method for controlling the average temperature is

with the ETS-D or contact thermometer. After the set point tempera-

ture has been adjusted, this results in a short heating-up time, practi-

cally no temperature drift and only minor ﬂuctuation in temperature.

In addition to precise control function, the adjustable ”MAX-

TEMP” function makes the ETS-D a temperature limiter that

has a direct effect on the average temperature. When this

“MAXTEMP” is exceeded, for example because of a defect in

the control circuit or unintentional of the “Safe Temp” or set

point temperature on the RCT, the ETS-D immediately and

permanently turns off the separate circuit of the RCT.

The stirring function then continues to run at the speed that was set

before the malfunction.

A 6-pin jack is located on the rear side of the instrument for connec-

ting the ETS-D, the contact thermometer or the contact plug. The

electronics of the instruments returns a test current that must ﬂow via

connector pins 3 and 5 for the heating plate to heat up.

Safety contact thermometers

acc. to DIN 12 878 class 2 or acc. Gerstel are connected with a three

wire cable, the test current ﬂows through the contact thermometer.

Safety function:

If the test current is interrupted because of e.g. breakage of contact

thermometer or falling out of the cable plug, the heating cuts off.

The required plug allocation is indicated on a reference plate above

the diode bushing.

Contact thermometer without safety circuit

acc. to DIN 12 878 class 0. The instrument only heats if the test

current circuit is closed by an electrical connection of the plug pins

3 and 5.

2-wire connecting cables:

Connect plug pins 3 and 5 of the instrument plug.

3-wire connecting cables:

Here the test current circuit can also be produced in the terminal

head of the contact thermometer (connect plug pins 2 and 3).

A 3-wire cable with the required bridge is available (accessories).

Settings

For the detailed instructions for settings and limit values, please

refer to the operating instructions for the instrument you are con-

necting.

The desired average temperature can be adjusted on the

ETS-D or contact thermometer. In addition, a “MAXTEMP”

can be set for the ETS-D, in other words, a maximum ave-

rage temperature can be set for malfunctions in combina-

tion with the RCT. The required surface temperature of the

heating plate can be selected with the “Temp” dial.

Adjusting the “Temp” dial to the maximum adjustable temperature

will result in the fastest possible heating time, but the average

temperature may ﬂuctuate to values above the set-point tempe-

rature on the contact thermometer, for example. By adjusting the

“Temp” dial to approximately twice the set-point value (thus with

a set-point or 60 °C the Temp dial would be set to 120 °C), you

will reach a good compromise between a fast heating time and

overshooting the set point.

If you adjust the Temp dial to exactly the set-point temperature, the

medium will not reach the set-point temperature, since some loss of

the heat will always occur between the heating plate and the medium.

The maximum heating plate temperature can be adjusted

will the “Safe Temp” screw.

Setting the temperature control mode

When using an external PT 1000 temperature sensor, the user can

choose between two types of control:

PI mode

Good control results, minimized 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

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/D when the two-point controller is activated.

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

temperature sensor) the actual temperature ﬂashes - that notiﬁes the

user that the process temperature has been greatly overshot!

Maintenance

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 Cer-

tiﬁcate” 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 sucient. Also, please use suitable shipping package materials.

• Stirring bars: ø 6 mm, length up to 15 mm

ø 7 mm, length up to 60 mm

ø 10 mm, length up to 80 mm

• RS 1 Set of magnetic stirring bars

• RSE Stirring bar remover

• H 15 Bath attachment • H 28 Bath attachment

• H 29 Oil bath attachment • H 30 Oil bath attachment

• 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

Accessories

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

Error 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 temperature + 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 temperature + 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

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