IKA RH basic Betriebsanleitung Seite 7

Unpacking
• Unpacking
- Please unpack the device carefully
- In the case of any damage a report must be sent immediately
(post, rail or forwarder).
Intended use
• Use
- For mixing and/or heating liquids.
• Area of use
Indoor environments similar to that a laboratory of research,
teaching, trade or industry area.
Commissioning
i i
Assembly of H 102.1 protection handle
Protection handle should be assembled in place for safety!
Please note that slight residual odor could be smelt during first-
heating of the heater.
We suggest to operate the unit under a fume hood during the first use.
RH basic
Observe the ambient conditions (temperature, humidity, etc.) listed
under Technical Data.
Make sure the contact plug (N) is plugged in.
Before switching the device on, turn the two rotary knobs on the
device to the off position.
Once these conditions are satisfied,
and the mains plug has been plugged
in, the device is ready to operate.
Setting the operation mode
RH digital
Operating the device in mode A or B
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.
• Contents of package
- Magnetic stirrer with heating RH basic or RH digital
- Mains cable - Operating Instructions
- Screwdriver - H 102.1 Protection handle
- H102 protective cover (RHb) - H103 protective cover (RHd)
- Stirring bar 20, 30 and 40 mm
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.
Please follow above directions to ensure safe operation and
prevent device from suffering damage.
The device is switched on and off using the main switch (A) on the
right hand side.
After the device has been switched on using the main switch (A) the
"power" LED (E) lights up; this indicates standby status.
The device is now ready to operate. If the heating function is switched
on, the LED (F) lights up, indicating that the heating process is active.
RH digital
Observe the ambient conditions (temperature, humidity, etc.) listed
under Technical Data.
Make sure the contact plug (N) is plugged in.
Once this condition is satisfied, and the mains plug has been plugged
in, the device is ready to operate.
Please follow above directions to ensure safe operation and prevent
device from suffering damage.
The device is switched on and off using the main switch (A) on the
right hand side.
A few seconds after the device has been switched on, the display
will show all display segments, the software version, operating
mode, target temperature and speed.
The device is now ready for operation.
Factory setting: mode A
The mode selected will be shown on the
display when the device is started up.
A
mode
Change the mode
F Move device switch (A) to the OFF position
F Press and hold button (G and J)
F Move device switch (A) to the ON position
F Release button (G and J) until mode changed
i a The set value is indicated on the
display b
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Stirring function
The stirring bar, whose max. length should not exceed 80 mm, is
driven via permanent magnet. The permanent magnet is directly
attached to the output shaft of the motor.
The actual speed depends on the load and the voltage. Please
note that fluctuations within the permissible tolerance of the mains
voltage, and process-based changes to the viscosity of the medium
being stirred, can also cause minor fluctuations in the speed.
RH basic
The motor speed is set using the rotary knob for the motor (D). The
Setting the safety temperature limit
The max. attainable heating plate temperature is restricted to 360
°C by an adjustable safety temperature limit. Once this limit has
been attained, the device stops heating.
The safe temperature limit must
WARNING
always be set at least 25 °C lower
than the fire point of the media to
be processed!
The temperature set for the heating plate will be at least 25 °C
lower than the safe temperature limit.
Factory setting: about 360 °C.
Heating function
The unit has a built-in 600 w heating plate with a stainless steel
surface. The heating plate is kept at a constant temperature by a
control circuit. Two temperature sensors are built into the heating
plate.
RH basic
The heating plate temperature is set using the "Temp" rotary knob
(C) with its associated scale. The scale values range from approx.
room temperature to max. 320 °C. When the setting is 0 the
device heating does not switch on.
When the heating function is activated, the "Heating" LED (F)
lights up.
Controlling the Medium temperature limit via Contact Thermometer
The preferable method for controlling the average temperature is with
the ETS-D or contact thermometer. Adjust set point temperature. After a
brief heat-up period, you will reach set temp. This method provides practi-
cally no temperature drift and only minor fluctuations of temperature.
In addition to precise control function, the adjustable "MAX-
speed setting corresponds approximately to the value in rpm on
the speed scale. Turning the rotary knob (D) clockwise to the stop
sets the motor to run at maximum speed.
RH digital
The stirring function is started by pressing the button (J). The speed
can be set within the range 0 to 2000 rpm in increments of 50
rpm by pressing the buttons (L) or (K). The current speed setting
is shown on the display; this is the speed at which the device
operates.
Setting the safety temperature limit
After switching on the device, the safety temperature limit (B) can
be adjusted using a screwdriver.
Do not turn the setting screw beyond the clockwise or anticlock-
wise stop. This will cause irreparable damage to the potentiome-
ter.
• Using the screwdriver supplied, turn the "Safe Temp" setting
screw (B) to the clockwise stop.
• Use the temperature rotary knob (C) [RH basic] or with the
button (H or I) [RH digital] to set the target temperature to
the desired "Safe Temp" and wait until this is attained, at which
point the "Heating" LED (F) goes out.
• Turn the "Safe Temp" setting screw (B) slowly anticlockwise until
the heating function switches off and the indicator lamp (E) blin-
king (RH basic) or the display shows E24 (RH digital)...
• Then, turn the "Safe Temp" setting screw (B) slightly clockwise.
Switch the device off and on again at the main switch (A). After
this, the device is ready to operate.
RH digital
The heating function is started by pressing the button (G). The
heating plate temperature can be set within the range 50 °C
to 320 °C in 5 °C increments by pressing the buttons (I) or (H).
The current temperature setting is shown on display and device
operates at this temperature.
TEMP" function makes the ETS-D a temperature limiter that
has a direct effect on the average temperature. When this
"MAXTEMP" is exceeded, because of a defect in the control
circuit, "safe temp" or "set point temp" on RH, the ETS-D
immediately turns off the separate circuit of RH
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