IKA RET control-visc - Manual (Page 23)

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Remove the protective film from the mounting plate before use! The “Back” menu key is used to change between menu items.
Start-up
Stirring
Heating
Connecting an ex-
ternal thermometer
(directtemperature
control in the me-
dium)
Weighing
pH measurement
Timer
F Set the main switch (A) to the OFF position
F Insert the power supply cable into the mains socket (K)
F Set the main switch (A) to the ON position
a Standard mode A is selected (see “Operating modes”)
F Set the speed using the rotary knob (D)
a The set value is shown on the display (F)
F Press the rotary knob (D) to start the stirring function
i a The symbol (16) appears when the motor is active
F Set the safety temperature limit (see “Setting the safety temperature limit”)
F Set the target temperature using the rotary knob (C)
a The set value is shown on the display (J)
F Set the temperature control mode (see “Setting the temperature control mode”)
F Press the rotary knob (C) to start the heating function
The target and current temperature are shown permanently on the display (J):
i a When the heating function is switched on, the heating symbol (4) is displayed
The maximum adjustable heating plate temperature setting is 340°C
i a Whenever the mounting plate is at a temperature above 50°C, the display (J) shows and the current tem-
perature is shown, even if the device is switched off.
F Set the main switch (A) to the OFF position
F Connect the safety contact thermometer compliant with DIN 12878 Class 2 or temperature sensor PT 100 (individual
sensor) or PT1000 (double sensor) to socket (L)
F Set the main switch (A) to the ON position
i Temperature sensor PT 100 a The current temperature (5) shown on the display (J) corresponds to the tempera-
ture of the medium. The “Probe” symbol (11) lights up.
i Temperature sensor PT 1000 a The current temperature (5) for the temperature sensor shown on the display (J)
corresponds to the temperature of the medium. The “External temperature probe”
symbol (11) appears. The temperature of the carrier fluid (3) is also displayed.
F Press the (G) key
F Wait until the system is stable (once the system is stable, a “g” appears after the digit 0).
F Place the weight in the centre of the heating plate and wait until the system is stable once again.
i a The maximum display range is up to 2,000 g
a The weighing range is max. 5,000 g
a It is only possible to use the weighing mode when the heating or stirring functions are not active
i
a The weighing module can be calibrated (see section entitled “Calibrating the weighing module”)
a see section entitled “Calibration of the pH probe and pH measurement”
F Press the (H) key
F Set the time in hours, minutes and seconds by turning the knob (D) and confirm by pressing it; the timer function
starts to count down the remaining time once the heating or stirring function has started (see “Timer function”)
i Once the timer reaches 0, the heating function is switched off, even if the motor has only just been started.
If the heating is activated during the timer sequence, only the heating is switched off, but the motor continues
to run (delay in boiling).
Operation
(brief instructions)
Setting the operating mode
Operating the device in A, B, or C
Factory setting: Mode A
The set mode is shown permanently on the display (10).
Mode A
All the settings are retained when the device is switched off or
disconnected from the mains. When the device is switched on,
the status of the stirring and heating functions is set to (OFF).
Mode B
All the settings are retained when the device is switched off or
disconnected from the mains. When the device is switched on,
the status of the stirring and heating functions is set to whatever
it was before the device was last switched off (ON or OFF).