IKA Plate RCT digital, RCT 5 digital User Manual

IKA Plate (RCT digital)

RCT 5 digital

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Fig. 1

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EU Declaration of conformity .............................................................6

Explication of warning symbols ......................................................... 6

Safety instructions ............................................................................. 7

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Intended use ................................................................................... 10

Unpacking ...................................................................................... 11

Installation ...................................................................................... 12

Operator panel and display ............................................................. 15

Operation ....................................................................................... 17

Interfaces and outputs .................................................................... 29

Maintenance and cleaning .............................................................. 32

Accessories ..................................................................................... 32

Error codes ..................................................................................... 33

Technical Data ................................................................................36

Warranty ........................................................................................ 38

5

Source language: German

EU Declaration of conformity

We declare under our sole responsibility that this product corresponds to the directives 2014/35/EU,
2006/42/EC, 2014/30/EU and 2011/65/EU and conforms with the following standards or nor­mative documents: EN 61010-1, EN 61010-2-010, EN 61010-2-051, EN 61326-1, EN 60529
and EN ISO 12100.

A copy of the complete EU Declaration of Conformity can be requested at [e-mail].

Explication of warning symbols

/// Warning symbols

Danger!

Warning!

Caution!

Notice!

!

Attention!

Danger!

Indicates an (extremely) hazardous situation, which, if not avoided, will
result in death, serious injury.

Indicates a hazardous situation, which, if not avoided, can result in
death, serious injury.

Indicates a potentially hazardous situation, which, if not avoided, can
result in injury.

Indicates practices which, if not avoided, can result in equipment dam­age.

Indicates the risks due to magnetism.

Indicates the exposure to a hot surface.

/// General Symbols

Position number

A–––

Indicates device components relevant to actions.

Correct / result
Indicates the correct execution or the result of an action step.

Wrong
Indicates the incorrect execution of an action step.

Note
Indicates steps of actions that require particular attention.

Beep
Indicates action steps, for which beep sounds are to be heard.

6

Safety instructions

/// General information

› Read the operating instructions in its entirety before using the device and follow

the safety instructions.

› Keep the operating instructions in a place where it can be accessed by everyone.
› Ensure that only trained staff work with the device.
› Follow the safety instructions, guidelines, occupational health and safety and accident

prevention regulations.

› Electrical outlet must be grounded (protective ground contact).

Attention – 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 parts of the housing and the heating plate.
› The heating plate can reach dangerous temperatures. Pay attention to the residual heat on

the heating plate after switching off the stirrer.

› The device may only be transported when the heating plate has cooled down.

/// Device design

Danger!

› Do not use the device in explosive atmospheres, it is not EX-protected.
› With substances capable of forming an explosive mixture, appropriate safety measures must

be applied, e.g. working under a fume hood.

› To avoid body injury and property damage, observe the relevant safety and accident

prevention measures when processing hazardous materials.

!

Caution!

› Device surface is partially made of glass:

- Glass surface can be damaged by impact.

- If glass surface is damaged it could cause injury, don`t use the device anymore.

!

Notice!

› Set up the device in a spacious area on an even, stable, clean, non-slip, dry and fireproof

surface.
› The feet of the device must be clean and undamaged.
› Ensure that the power cord set / temperature sensor cable does not touch the heating plate.
› Check the device and accessories for damage before each use. Do not use damaged

components.

/// Permissible medium / contaminants / side reactions

Warning!

› 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.

7

› 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.

› Process pathogenic materials only in closed vessels under a suitable fume hood.

Caution!

› In unsupervised and safe operation, this device may only handle or heat media whose flash

point is above the set safety temperature limit. The safety temperature limit must always be
set to at least 25 °C lower than the flash point of the media used. (acc. to EN 61010-2-010)

› The heating plate can heat up due to the action of the magnets at high motor speeds, even

if the heater is switched off.
› Please consider any possible contaminations and unwanted chemical reactions.
› 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)

/// Procedures during sample runs

Caution!

› Wear your personal protective equipment in accordance with the hazard category of the

media to be processed. There may be a risk from:

- splashing and evaporation of liquids,

- ejection of parts,

- release of toxic or combustible gases.

› Reduce speed if:

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

- device is not running smoothly,

- container moves on the base plate,

- an error message is displayed.

/// Accessories

› Safe operation is guaranteed only with the use of original IKA accessories.
› Ensure that the external temperature sensor is inserted into the medium to a depth of at

least 20 mm when connected.
› Always disconnect the plug before attaching accessories.
› 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.
› Observe the operating instructions of the accessories.

8

/// Power supply / Switching off the device

Warning!

› The device will automatically restart in mode B following any interruption to the power

supply.

› The voltage stated on the type plate must correspond to the mains voltage.
› The outlet for the mains plug must be easily accessible.
› The device can only be disconnected from the mains outlet by pulling out the power cord set

or the connector plug.

/// For protection of the equipment

› The device may only be opened by qualified and IKA approved experts.
› Do not cover the device, even partially e.g. with metallic plates or film. This may result in

overheating.
› Protect the device and accessories from bumps and impacts.
› Keep the base plate clean.
› Observe the minimum distances:

- between devices min. 100 mm,

- between device and wall min. 100 mm,

- above the device min. 800 mm.

mm 100 <

mm 100 <

mm 100 <

9

Intended use

/// Use

› The magnetic stirrer is suitable for mixing and / or heating substances.

/// Area of use

› Indoor environments similar to that a laboratory of research, teaching, trade or industry area.
› The safety of the user cannot be guaranteed:

- if the device is operated with accessories that are not supplied or recommended by the
manufacturer,

- if the device is operated improperly or contrary to the manufacture’s specifications,

- if the device or the printed circuit board are modified by third parties.

10

Unpacking

1 IKA Plate (RCT digital)

1

RCT 5 digital

/// Unpacking

Unpack the device carefully. Any damage should immediately be reported to the carrier (mail,
rail or freight forwarding company).

/// Scope of delivery

2

4

3

IKA Plate (RCT digital) / RCT 5 digital

1

Power cord

2

USB cord

3

Temperature sensor PT 1000.60

4

Screwdriver (safety circuit)

5

Magnetic stir bar IKAFLON 30 and 40 mm

6

User guide

7

Warranty card

8

7

5

6

Plate

IKA

8

11

Installation

17 mm

/// Assembling support rod / extension etc.

› Review the mounting and safety instructions of the IKA boss head clamp prior to using it. (see

“Accessories”)

› The device must not be suspended from the support rod!

Risk of tipping!

› Make sure that the center of mass of the attached device does not protrude over the safe

area indicated below with a dotted rectangle.

!

Notice!

› When using bath attachments with a diameter over 180 mm, use support rod in conjunction

with an extension (see “Accessories”).

1

1.

2.

3.

2

4.

4.

3.

1.

1.

2.

2.3.

12

≤ 90 mm

≥ 90 mm

H 16.3

/// Connecting an external temperature sensor / thermometer

1. Switch off the device [main switch (A)].

2. Connect safety contact thermometers according to DIN 12878 Class 2 or Temperature sensor
PT 1000 (single sensor) to the connection (M).

3. Switch on the device via the main switch (A).

Temperature sensor PT 1000:

› The actual temperature value shown on the display corresponds to the temperature of the

medium. The symbol shows on the display.

Contact thermometer ETS-D5 / ETS-D6:

› Follow the operating instructions for the contact thermometer.

The actual temperature value of the heating plate is shown on the display.
The symbol shows on the display.

13

1

3.

2.

OFF

1.

2

14

≥ 20 mm

Operator panel and display

/// Operator panel

I

H
C

N

O

E F

A Main switch (left « on, right « off)

B Adjustable safety circuit

Rotating / pressing knob - Temperature

C

setting

D Rotating / pressing knob - Speed setting

E “Menu“ button

F “Timer“ button

G “Lock“ button

H Display

G

B A

D

J K L M

I Standby LED

J Power socket

K USB Interface

L RS 232 Interface

Connection for PT 1000 temperature

M

sensor series, temperature probes or
contact plugs

N Heating plate

O Threaded hole for stand

15

/// Display

07 09 11 10 15 17 16 08

14 | 13

SAFE

VISC

SET

01 Set speed value

02 Set temperature value

03 Motor running / rotation direction

04 Timer / counter

05 Temperature unit

06 Heating function activated

07 Actual temperature value

08 Actual speed value

09 Temperature control mode

SET

01

18030412050206

10 Operating mode

11 Safety circuit temperature

12 Viscosity trend value

13 |14PT 1000 temperature sensor connected

ETS-D5 / ETS-D6 connected

15 All parameters locked

16 USB connection with PC

17 Connection with PC established

18 Intermittent mode activated

16

Operation

/// Start-up

1.

(°C / °F)

5.

ON

2.

OFF

3.

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

(rpm)

4.

SET

17

/// Stirring

›

Set the speed using the rotating / pressing knob (D).
The set speed value is shown on the right of the display.

›

Press the rotating / pressing knob (D) to start the stirring function.

1 2

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

3 4

SET

Temp 0...310 °C Speed 0...1500 rpm

0...1500 rpm

SAFE

SET

(rpm)

SET

18

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

SAFE

SET

SET

Temp 0...310 °C Speed 0...1500 rpm

SET

/// Heating

Setting the safety 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.

!

Notice!

The denominated temperatures should always refer to the center of the heating plate.

Warning!

The safety 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 must always be set at least 15 °C under the
set safety temperature limit.
Setting range: see section “Technical data“.

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.

Functional test: safety circuit switch-off

› Heat the device to a temperature of over 100 °C.
› Set the safety temperature limit as far to the left as possible.
› The display will show: Er25

Safe temp. (°C / °F)

Safe temp.: 50...370 °C

SAFE

–

2.

+

1.

ON

SET

Temp 0...310 °C Speed 0...1500 rpm

Set temp.: 0...310 °C

Safe temp. ≥ Set temp. + 15 °C

Start heating:

› Set the safety temperature limit. (see “Setting the safety temperature limit”)
› Set the target temperature using the rotating / pressing knob (C).

The set temperature value is shown on the left of the display.

› Set the temperature control mode. (see “Temperature control mode”)
› Press the rotating / pressing knob (C) to start the heating function.

SET

19

(°C / °F)

OFF

1

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

3

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

5

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

2

0...310

°C

≤ Safe temp. − 15

SET

°C

PID / 2P / PI

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

SET

4

SAFE

SET

SET

SET

Temp 0...310 °C Speed 0...1500 rpm

SET

20

General information for heating:

> 50 °C

Temp 0...310 °C Speed 0...1500 rpm

› The set and actual temperature values are shown permanently on the display.
› When the heating function is switched on, the “Heating function activated” symbol is

displayed.

› When the device is switched off while the heating plate temperature is higher than 50 °C,

the display shows “Hot!” and the actual temperature value is shown, even if the device is
switched off.

/// Controlling the medium temperature limit using a contact
thermometer

The preferable method for controlling the average temperature is with contact thermometer.
After the set point temperature has been adjusted, this results in a short heating-up time, prac­tically no temperature drift and only minor fluctuation in temperature.

A 6-pin jack is located on the rear side of the device for connecting the PT 1000 series, contact
thermometer or the contact plug. The electronics of the devices 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.

Contact thermometer without safety circuit:

Acc. to DIN 12 878 class 0. The device 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 device 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 detailed instructions for settings and limit values, please refer to the operating manual of
the device you are connecting.

The desired average temperature can be adjusted on the contact thermometer. The
required surface temperature of the heating plate can be selected with the rotating
/ pressing knob or button.

Adjusting the temperature of device 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 temperature on the contact thermometer. By adjusting the rotating / pressing knob or
button to approximately twice the set-point value of contact thermometer (with a set-point of +
60 °C, the temperature of device would be set to + 120 °C), you will reach a good compromise
between a fast heating time and over-shooting the set point. If you adjust the temperature
of the device to exactly the set-point temperature, the medium will not reach the set-point
temperature because some loss of the heat will always occur between the heating plate and
the medium.

If a fault occurs in the control circuit, the maximum heating plate temperature can
be adjusted with the safety temperature setting screw.

21

/// Menu structure

Operating mode

Factory settings

A
B
D



-

-

Temperature control mode

Intermittent mode /
Rotation direction

Beep

Temperature unit

Error 5

Timer expired

Safe / Visc

SAFE

PID
2P
PI

Intermittent mode

Rotation direction
Automatic reverse rotation

ON
OFF

°C
°F

Stop heating

Stop stirring

Safe
Visc

yes
no

yes
no

Run time
Pause time

ON
OFF



-

-

00:00 [mm:ss]
00:03 [mm:ss]
Clockwise (continuous)

-





-



-

05:00 [mm:ss]

-



-





-

22

Factory reset

Probe calibration

Software version

yes
no

(default) set

(not default) reset

no
yes

2 Point

no

yes

-





-



-

-

/// Menu details

t

PID

t

Operating mode:

Mode A:

All settings will be stored if the device is switched off or disconnected from the power supply.
The stirring and heating functions will be set to OFF when the device is powered on. The safety
circuit can be set or modified. When the power supply switch is switched on, A is displayed.

Mode B:

All settings will be stored if the device is switched off or disconnected from the power supply.
The stirring and heating functions will be set to ON or OFF when the device is powered on,
depending on the previous status of the device. The safety circuit can be set or modified. When
the power supply switch is switched on, B is displayed.

Mode D:

When switching the device on, the safe temperature has to be confirmed by pushing one of
the rotating / pressing knobs.
During operation, in mode D the device behaves the same as in Mode A with the exception
that:
› The temperature / speed setting must be confirmed by pressing the rotating / pressing knob.

To change the temperature / speed setting, turn the rotating / pressing knob until the desired
value appears.

› The new value flashes for 5 seconds on the display. Confirm the new temperature / speed

setting by pressing the rotating / pressing knob, otherwise the temperature / speed setting
value will skip back to its previous value.

Temperature control mode:

When using an external PT 1000 temperature sensor, you can choose below control modes:

PID mode:

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

2P-mode (two-point controller):

Maximum heating rate, increased overshooting.

PI mode:

Good control results, for some of the heating blocks.

2P

T

Set

T

Set

Temp. control

23

Intermittent mode / Rotation direction:

Intermittent mode:

In intermitted mode, the stirring function is interrupted cyclically. The run time (0 / 10 sec – 10
min, 10 sec steps) and pause time (3 sec – 5 min, 1 sec steps) should both be set. When the
intermittent mode is activated, a decimal point appears on the display (

).

Rotation direction:

You can select the continuous rotation by setting the time to 00:00:00 via pushing the rotating
/ pressing knob (D). Afterwards the rotation direction can be selected by turning the rotating /
pressing knob (D).
Alternatively to continuous stirring, you can set the direction of rotation reversal. Then the
rotation direction changes after each pause.
In this way the magnetic rod is captured and any liquid still rotating is gradually slowed down.
Then the drive accelerates to the target speed.

Beep:

The menu item “Beep“ allows the user to turn on / off the sound that occurs when the timer
reaches 00:00:00 or an error message appears.

Temperature unit:

The menu item “Temperature unit“ allows the user to select the desired unit between ”°C” or
”°F” for displaying the temperature.

Error 5:

Providing safety protection, Error 5 is taken to recognize that the sensor has not been placed in
the medium when the heating is switched on.

!

Notice!

You can set a value from 0.5 to 30 min for this time limit depending on the application. If time limit
is set to 0 min, the “Er05” detection is disabled.

24

Caution!

This function will only be active if:
› sensor temperature is < 50 °C
› difference between target temperature and sensor temperature > 5 K.

Timer expired:

You can specify the procedure of heating and stirring function if the timer achieves 00:00:00.
Next to the visually / audible information you can decide independently if the heating and stir­ring should be stopped automatically if the timer is expired or should continue.

Caution!

Switching off the stirring function can lead to a delayed boiling.

Safe / Visc:

Once the “VISC / SAFE“ has been set to “VISC“, the viscosity trend value will be shown on the
display. The torque trend measurement is used to deduce the change in viscosity of the reaction
medium. The devices are not designed to measure absolute viscosity. They only measure and
display the relative change in the viscosity of the medium from a starting point specified by the
user.
Once the speed of the motor and magnetic rod in the medium have stabilized to the target
speed, the viscosity measurement is started at 100 %. The change in the viscosity is then shown
in %.
The value can always be reset to 100 % by pushing the „Menu“ button for 2 seconds.

!

Notice!

Torque trend measurement only works for a constant set speed for the duration of the meas­urement. As a result, intermittent mode cannot be used in conjunction with torque trend meas­urement.
The current control variable is saved as the reference 100 % P and shown on the digital dis­play. The change in the viscosity is then shown in %.
When on the “VISC“ screen, the screen will switch to “SAFE“ if the adjustment of the safety
temperature is activated, during which you may set the safety temperature and the screen will
switch back to “VISC“ once the setting is done, otherwise it will switch back to “VISC“.

Factory reset:

The menu item ”Factory reset” allows the user to reset all the system settings to the original
standard values set at dispatch from the factory (see “Menu structure”).

Probe calibration:

In order to use tolerances to limit temperature deviations, the user can calibrate the tempera­ture sensor in conjunction with the device.

2-point calibration:

Calibration using two temperatures.

!

Notice!

For calibration, select a suitable stirring speed for the application.
Use a calibrated temperature reference meter for control.

25

Probe cal.

“EXT” temp.



SAFE

SET

1st temp.

SET

1st speed

2.



SAFE

SET

SAFE

2nd temp.



1.

SET

= 2nd temp.

“EXT“ temp.

SET

1.

SAFE

SET

SAFE

= 1st temp.

SAFE

SET

Software version:

Turn the rotating / pressing knob (D) to change the menu item to ”Software version”.

/// Timer / Counter

SET

SET

SET

26

› Press the “Timer” button for 2 seconds to activate the timer / counter function.

2.

1.

27

Timer mode (count down):

› Set the desired value with the rotating / pressing knob (D). By pressing the knob the value is

confirmed.
› Pressing the button (F) to start the timer.
› To pause the timer, press the button (F).
› To restart the timer, press the button (F) again.
› After the timer has elapsed, the display starts flashing and a beep sounds (depending on the

menu setting).

Counter mode (count up):

› To select the counter mode, you must set all the values to 00:00:00.
› The value is confirmed by pressing the rotating / pressing knob (D).
› Pressing the button (F) to start the counter.
› Press the button (F) to pause the counter.
› To restart the counter, press the button (F) again.
› If the elapsed time exceeds the value of 100 hours, the display switches from hour:minute:sec-

ond mode to day:hour mode.
› If the elapsed time exceeds the value of 100 days, the counter will reset to 00:00:00.

!

Notice!

› From each state of the timer / counter, press the button (F) for 2 seconds to exit the timer /

counter.

/// Lock button

› An active locking is indicated by the symbol ( ).
› Even after a power failure, the device retains the lock status.

28

SAFE

SET

Temp 0...310 °C Speed 0...1500 rpm

SET

Interfaces and outputs

The device can be operated by computer via an RS 232 or USB interface using the laboratory
software labworldsoft®.
The device software can also be updated with a PC via the RS 232 or USB port.

!

Notice!

Please comply with the system requirements together with the operating instructions and help
section included with the software.

/// USB interface:

The connected devices and their properties are detected automatically. The USB interface is
used in conjunction with software control for “remote” operation and can also be used for
software update of the device.

/// USB device drivers:

First, download the latest driver for IKA devices with USB interface from:
http://www.ika.com/ika/lws/download/usb-driver.zip
Install the driver by running the setup file. Then connect the IKA device to the PC via the USB
data cable and follow the instructions.
The data communication is via a virtual COM port.

/// RS 232 interface:

Configuration:
› The functions of the interface connections between the device and the automation system

are chosen from the signals specified in EIA standard RS 232 in accordance with DIN 66 020
Part 1.

› For the electrical characteristics of the interface and the allocation of signal status, standard

RS 232 applies in accordance with DIN 66 259 Part 1.
› Transmission procedure: asynchronous character transmission in start-stop mode.
› Type of transmission: full duplex.
› Character format: character representation in accordance with data format in DIN 66 022 for

start-stop mode. 1 start bit; 7 character bits; 1 parity bit (even); 1 stop bit.
› Transmission speed: 9600 bit/s.
› Data flow control: none.
› Access procedure: data transfer from the device to the computer takes place only at the

computer’s request.

/// Command syntax and format:

The following applies to the command set:
› Commands are generally sent from the computer (Master) to the device (Slave).
› The device sends only at the computer’s request. Even fault indications cannot be sent spon-

taneously from the device to the computer (automation system).
› Commands are transmitted in capital letters.
› Commands and parameters including successive parameters are separated by at least one

space (Code: hex 0x20).
› Each individual command (incl. parameters and data) and each response are terminated with

Blank CR LF (Code: hex 0x20 hex 0x0d hex 0x20 hex 0x0A) and have a maximum length of

80 characters.
› The decimal separator in a number is a dot (Code: hex 0x2E).

29

The above details correspond as far as possible to the recommendations of the NAMUR work­ing party (NAMUR recommendations for the design of electrical plug connections for analogue
and digital signal transmission on individual items of laboratory control equipment, rev. 1.1).

The NAMUR commands and the additional specific IKA commands commissioning serve only
as low level commands for communication between the device and the PC. With a suitable ter­minal or communications program these commands can be transmitted directly to the device.
The IKA software package, Labworldsoft

®

, provides a convenient tool for controlling device
and collecting data under MS Windows, and includes graphical entry features, for motor speed
ramps for example.

NAMUR Commands Function

IN_NAME

IN_PV_1

IN_PV_2

IN_PV_4

IN_PV_5

IN_SP_1

IN_SP_3 Read rate set safety temperature value

IN_SP_4 Read rate speed value

OUT_SP_1_x
(x=0...310)

OUT_SP_4_x
(x=0...1500)

START_1 Start the heater

STOP_1 Stop the heater

START_4 Start the motor

STOP_4 Stop the motor

RESET Switch to normal operating mode

SET_MODE_n
(n=A, B, or D)

OUT_SP_12@n Setting WD safety limit temperature with set value echo

OUT_SP_42@n Setting WD safety limit speed with set value echo

OUT_WD1@m Watchdog mode 1: if event WD1 should occur, the heating and stirring

OUT_WD2@m Watchdog mode 2: if event WD2 should occur, the speed target value is

Read the device name

Read actual external sensor value

Read actual hotplate sensor value

Read stirring speed value

Read viscosity trend value

Read rated temperature value

Adj ust the set temperature value

Adjust the set speed value

Set operating mode

functions are switched off and Er02 is displayed. Set watchdog time to m
(20- 1,500) seconds, with watchdog time echo. This command launches the
watchdog function and must be transmitted within the set watchdog time.

changed to the WD safety speed limit and the temperature target value is
changed to the WD safety temperature limit value. The warning WD is dis­played. The WD2 event can be reset with OUT_WD2@0 - this also stops
the watchdog function. Set watchdog time to m (20- 1,500) seconds, with
watchdog time echo. This command launches the watchdog function and
must be transmitted within the set watchdog time.

30

”Watchdog” functions, monitoring of the serial data flow:

GND 5

5 GND

6

7

8

9

5

4

3

2

1

USB B

USB A

If, once this function has been activated (see NAMUR commands), there is no retransmission of
the command from the computer within the set time (“watchdog time”), the heating and stirring
functions are switched off in accordance with the set “watchdog” function or are changed to the
set target values.
The data transmission may be interrupted by, for example, a crash in the operating system, a power
failure in the PC or an issue with the connection table between the computer and the device.

“Watchdog” – mode 1:

If there is an interruption in data communications (longer than the set watchdog time), the heating
and stirring functions are switched off and Er02 is displayed.

“Watchdog” – mode 2:

If there is an interruption in data communications (longer than the set watchdog time), the speed
target value is changed to the WD safety speed limit and the temperature target value is changed
to the WD safety temperature limit value. The warning WD is displayed.

PC 1.1 cable:

This cable is required to connect RS 232 port to a PC.

1

2

3

4

5

1
TxD 2
RxD 3

4

1
2 RxD
3 TxD
4

9

8

7

6

PC

USB cable A – B:

This cable is required to connect USB port to a PC.

31

Maintenance and cleaning

› The device is maintenance-free. It is only subject to the natural wear and tear of components

and their statistical failure rate.

/// Cleaning:

› For cleaning disconnect the mains plug!
› Use only cleaning agents which have been approved by IKA to clean IKA devices.

These are water (with tenside) and isopropanol.
› Wear protective gloves during cleaning the devices.
› Electrical devices may not be placed in the cleansing agent for the purpose of cleaning.
› Do not allow moisture to get into the device when cleaning.
› Before using another than the recommended method for cleaning or decontamination, the

user must ascertain with IKA that this method does not destroy the device.

/// Spare parts order:

› When ordering spare parts, please give:

- device type.

- serial number, see type plate.

- software version (upon device starting up).

/// Repair:

Please only send devices in for repair that have been cleaned and are free of materials which

might present health hazards.

If your appliance requires repair, return it in its original packaging. Storage packaging is not

sufficient when sending the device - also use appropriate transport packaging.

32

Error codes

› The fault is shown by an error code on the display as following if the error occurs.

Proceed as follows in such cases:

- Turn off the device by using the main switch (left « on, right « off).

- Carry out corrective measures.

- Restart the device.

Error code | Causes | Effect | Solutions

Er02 - Watchdog error

Causes

Effect

Solutions

Er03 - Temperature inside device is higher than 80 °C

Causes

Effect

Solutions

Er04 - Motor control is unavailable

Causes

Effect

Solutions

›

PC does not transmit any data within the set watchdog time

›

connection to PC interrupted

›

heating switched off

›

motor switched off

›

change watchdog time

› transmit data from PC within set watchdog time (OUT_WDx@m)

check cable and plug

›

›

heat accumulation between heating plate and housing

› permitted ambient temperature exceeded

›

heating switched off

› switch device off, leave to cool and switch on again
› change experiment

observe maximum permissible ambient temperature

›

›

motor blocked or overloaded

›

heating switched off

› motor switched off

› reduce load torque or use smaller magnetic rods
› reduce target speed

Er05 - No temperature increase measured by temperature sensor

(selected time in menu)

Causes

Effect

Solutions

› sensor not in medium
› volume of medium to be measured too large
› heat conductivity of medium to be measured too low
› heat conductivity of the vessel is too low
› in the case of indirect heating, the overall heat

large

›

heating switched 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

conductivity resistance is too

33

Er06 - Interruption of the safety circuit

Causes

Effect

Solutions

› break in safety circuit

›

heating switched off

› plug in contact plug
› plug in PT 1000 temperature sensor
› replace faulty connecting cable, plug, or contact thermometer

Er13 - Hotplate safety sensor, open-circuit

Causes

Effect

Solutions

› target / current different of the adjustable safety circuit for minimum temperature

monitoring

›

heating switched off

› after switching on, change the SAFE TEMP to a different value; if this solves the

issue, the previous value can be reset by switching the device off and on again

Er14 - External temperature sensor, short-circuit

Causes

Effect

Solutions

› short circuit in temperature sensor plug
› short circuit in the cable or temperature sensor

›

heating switched off

› check the plug
› replace the temperature sensor

Er21 - Fault during heating plate safety test

Causes

Effect

Solutions

› safety relay does not open

›

heating switched off

› switch device off, leave to cool and switch on again

34

Er22 - Fault during heating plate safety test

Causes

Effect

Solutions

› S_CHECK cannot generate H_S_TEMP

›

heating switched off

› switch device off, leave to cool and switch on again

Er24 - Heating plate temperature is higher than the set safety temperature

Causes

Effect

Solutions

› s

afety temperature

heating plate

› disconnection of heating plate control temperature sensor

›

heating switched off

› leave the heating plate to cool
› set the safety temperature higher

has been set to lower than the current temperature of the

Er25 - Heating switching element monitoring fail

Causes

Effect

Solutions

› heater control circuit switch (TRIAC) short-circuited
› safety relay has interrupted the heating circuit
› heater or the supply line is disconnected
› disconnection of heating plate safety temperature sensor

›

heating switched off

› switch device off, leave to cool and switch on again

Er26 – Plate temperature > plate safety temperature (more than 40 K)

Causes

Effect

Solutions

› irregular temperature distribution across heating plate due to sporadic heat

dissipation

› defective control or safety temperature sensor

›

heating switched off

› switch device off, leave to cool and switch on again
› ensure regular heat dissipation when using metal blocks, etc. on the flat surface of

the heating plate

Er31 – Fault in the heater switch element

Effect

Solutions

›

heating switched off

› contact customer service

Er44 – Heating plate safety temperature is higher than the set safety temperature

Causes

Effect

Solutions

› SAFE TEMP H (Hotplate) has been set to lower than the safety temperature of the

heating plate

› disconnection of heating plate safety temperature sensor

›

heating switched off

› leave the heating plate to cool
› set the SAFE TEMP H (Hotplate) higher

Er46 – Plate safety temperature > plate temperature (more than 40 K)

Causes

Effect

Solutions

› irregular temperature distribution across heating plate due to sporadic heat dissi-

pation

› defective control or safety temperature sensor

›

heating switched off

› switch device off, leave to cool and switch on again
› ensure regular heat dissipation when using metal blocks, etc. on the flat surface of

the heating plate

›

If the actions described fails 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.

35

Technical data

IKA Plate (RCT digital) RCT 5 digital

General data

Voltage 220 – 230 VAC ± 10 %

Frequency 50 / 60 Hz

Power input 650 W 900 W

Power input standby 1.6 W

Self-heating of the heating plate by max. stirring
(RT:22° C/duration:1h)

Automatic reverse rotation yes

Intermittent mode yes

Viscosity trend measurement yes

Timer yes

Interface USB, RS 232

Permissible ambient temperature + 5 ... + 40 °C

Permissible relative humidity 80 %

Protection class according to DIN EN 60529 IP 42

Protection class I

Contamination level 2

Overvoltage category II

Plate material Aluminium alloy Aluminium with

Plate dimensions Ø 135 mm 137 x 137 mm

Dimensions (W × D × H) 160 × 270 × 85 mm

Weight 2.3 kg 2.6 kg

Operation at a terrestrial altitude max. 2000 m

Stirring function

Number of stirring positions 1

Max. stirring quantity (H

Speed range 0 / 50 ... 1500 rpm

Speed display set-value LCD

Speed display actual-value LCD

Speed setting rotating / pressing knob

Speed setting accuracy 10 rpm

Speed variation (no load, nominal voltage,
at 1500 rpm, ambient temperature + 25 °C)

Stirring bar length 30 ... 80 mm

O) 20 l

2

115 VAC ± 10 %
100 VAC ± 10 %

+ 13 °C

ceramic coating

± 2 % of 1500 rpm

36

Heating function

Heat output 600 W 850 W

Heating temperature range RT + device self-heating ... 310 °C

Temperature setting range 0 ... 310 °C

Temperature display set-value LCD

Temperature display actual-value LCD

Temperature setting rotating / pressing knob

Temperature setting resolution of heating plate 1 K

Temperature setting resolution of medium 1 K

Heating rate (1 l water in H 1500) 6.5 K / min 7.5 K / min

Temperature control accuracy of heating plate (at 100 °C) ± 5 K

Adjustable safety circuit 50 °C ... 370 °C

External temperature sensor / thermometer

Connection for external temperature sensor / thermometer PT 1000 series, ETS-D5, ETS-D6

Temperature control accuracy
(500 ml water in 600 ml glass beaker,
40 mm bar, 600 rpm, 50 °C)

Temperature sensor PT 1000 deviation
EN 60751 class A ≤ ± (0.15 + 0.002 × ITI)

Sensor in medium detection (Error 5) yes

± 0.5 K ( with temperature sensor PT 1000)

± 0.5 K (with thermometer ETS-D5)
± 0.2 K (with thermometer ETS-D6)

› Subject to technical changes!

37

Warranty

›

In accordance with IKA warranty conditions, the warranty period is 24 months. For claims

under the warranty please contact your local dealer. You may also send the device direct to

our factory, enclosing the delivery invoice and giving reasons for the claim. You will be liable

for freight costs.

›

The warranty does not cover worn out parts, nor does it apply to faults resulting from

improper use, insufficient care or maintenance not carried out in accordance with the

instructions in this operating manual.

38