Assembling The Stand; Maintenance And Cleaning; Technical Data - IKA RH basic Mode D'emploi

The stirring function will continue 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, contact thermometer or contact plug. The electronics
of the instrument returns a test current which must flow through con-
nector 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 breakage of contact ther-
mometer or unplugging of thermometer, the heating cuts off.
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:
The test current circuit can also be produced in the terminal head
of the contact thermometer (connect plug pins 2 and 3)-Safety
Advantage!
A 3-wire cable with the required bridge is an available accessory.

Assembling the stand

• Remove threaded plug (R)
• 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 wrench to tighten the nut
• Accessories should be attached using boss head clamps.

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 clean-
ing 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.
- position number and description of spare part,
see www.ika.com.
- software version.
Settings
For the detailed instructions for settings and limit values, please refer
to the operating instructions for the instrument you are connecting.
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. A maximum average temperature
can be set on the ETS-D to avoid malfunctions in combina-
tion with the RH. The required surface temperature of the
heating plate can be selected with the temperature rotary
knob or button.
Adjusting the temperature of device to the maximum adjustable tem-
perature 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 temperature rotary knob
or button to approximately twice the set-point value of contact ther-
mometer (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 overshooting the set point.
If you adjust the temperature of 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 hea-
ting plate and the medium.
The maximum heating plate temperature can be adjusted
with the "Safe Temp" screw.
Note:
For bath attachments with diameters
greater than 180 mm, use the support
rod H 16 V with the extension H 16.1.
Repair
Please only send devices in for repair that have been
cleaned and are free of materials which might present
health hazards.
For repair, please request the "Safety Declaration (Decontami-
nation Certificate)" from IKA or use the download printout of it
from IKA website at www.ika.com.
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.
Information for Care and Maintenance of the Heating
Plate with Technical Enamel Coating
The technical enamel makes the heating plate easier to care fort and
more resistant to acids and bases. Because of it, however, the
heating plate is also more susceptible to extreme fluctuations in
temperature and the force of impact. This can result in cracks
forming or the coating flaking off.
Make certain that the bottom of the placing vessel is even, clean
and dry. The bottom of the placing vessel must not have any sharp
grooves, sides or edges. Remove residues of bases and immediately.
We recommend most strongly that you clean the heating plate
regularly.
14
Error Codes (RH digital)
Error Cause Effect
code
E3 Temperature inside device is too high Heating off - Switch off device and allow to cool down.
E4 Motor or magnetic rods blockage Heating off - Switch off device.
Motor off
E11 Break in safety circuit Heating off - Plug in contact plug (N).
E21 Failure in safety circuit test
E22
E29
E24 Surface temperature (Temperature of contr- Heating off - Switch off device until the surface temperature of the heating plate is lower than
ol sensor) of the heating plate is higher than the
set safe temperature limit
E25 Heating and switching element monitoring Heating off - Switch off device.
E26 Difference between temperature of safety Heating off - Switch off device.
sensor and temperature of control sensor
Control temperature > (Safety temperature + 40 K)
If the actions described fail to resolve the fault or another error code is displayed then take one of the following steps:
- Please contact the service department;
- Send the device for repair, including a short description of the fault.

Technical data

Device
Operating Voltage Range - Rated voltage Vac
Frequency Hz
Power consumption (+10%) max. W
Permissible duration of operation %
Permissible ambient temperature °C
Permissible relative humidity %
Protection type acc. DIN EN 60529
Protection class
Overvoltage category
Contamination level
Operation at a terrestrial altitude m
Dimensions (W x D x H) mm
Weight kg
Motor
Speed range rpm
Power consumption W
Setting resolution (digital/basic) rpm
Speed stability (no load) at rated voltage
≥ 500 rpm %
< 500 rpm rpm
Stirred quantity max.(H O) ltr
2
Heating plate
Dimensions (Ø) mm
Material
Heating
Heating power (-5%/+10%) at rated voltage W
(digital/basic) K
Adjustment and display resolution
Surface temperature °C
Hysteresis of heating plate at rated voltage K
no container, center of heating plate at 100 °C
Electronic Thermometer
Adjustable safety circuit
Safety temperature limit (adjustable) °C
Solution
- 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.
- Plug in contact thermometer/temperature sensor.
- Replace faulty connecting cable, plug, or contact thermometer.
- Switch off and switch on again after about 1 minute.
When fault is indicated again, please contact with IKA service.
- Set a higher safe temperature limit.
the selected safe temperature limit.
- Set a higher safe temperature limit.
- Safety temperature limit > 100 °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.
- 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.
230±10% / 115±10% / 100±10%
50/60
620
100
+5 to +40
80
IP 21
I
II
2
max. 2000
250 x 160 x 100
2.8
0; 100-2000
20
50/Scale
±10
±100
15
135
stainless steel / enameled white
600
5/Scale
ambient temperature ...320
±20
DIN 12878
100-360
15