Ika RET control-visc User Manual download pdf (Page 24)

Mode C

In this mode, the device can be used either with or without a

temperature sensor.

When the device is switched on using the main switch, the

stirring and heating functions are started in the last set status

and at the last set values. The set nominal values in operating

modes A and B cannot be modiﬁed.

Changing the operating mode

- Scroll down to the “Mode” icon in the menu

- Open the submenu by pressing the rotary knob (D)

- Use the rotary knob (D) to select the desired mode and

conﬁrm by pressing the rotary knob (D)

- A short description of the operating mode is then shown

on the display

- Conﬁrm selection of the operating mode by pressing the

rotary knob (D) once more.

Functions

When using the PT100, the selected temperature control mode is

shown on the digital display by the

(11) symbol.

The target temperature (2) and the

current temperature (5) shown on

the display refer to the temperature

of the medium. The heating plate

temperature is limited by the set

safety temperature (7). The medium

temperature is controlled by means

of a microcontroller. The medium

temperature is measured by the PT100

temperature sensor and is heated

up as quickly as possible without

overshooting to the set temperature.

The microcontroller is capable of

adjusting automatically to the different

heating capacities of various vessels

and their contents. As a result, the heat

is distributed in an optimum fashion

with no temperature drift or ripples.

Regulation of the temperature of the medium

using PT100 temperature sensor

The user is able to set the device to three different methods

depending on their speciﬁc needs. The selected temperature

control method is displayed alongside the symbol (11).

Control methods

Changing between the

control methods

- Scroll down to the

“Heating” icon in the menu

- Open the control method

submenu by pressing the

rotary knob (D)

- Use the rotary knob (D) to

select the desired mode

and conﬁrm by pressing

the rotary knob (D)

- A short description of the

operating mode is then

shown on the display

- Conﬁrm selection by

pressing the rotary knob (D)

once more.

PID: For use with very sensitive materials which need to be

handled carefully.

Advantages:

 •  veryaccuratewarming

of the liquid

 •  noexceedingthetarget

temperature

Disadvantages:

 •  slowheatingoperating

Set

Fast PID: combines the advantages of the PID and two-point

methods (very fast

heating and high

accuracy; possible

overheating).

Two-point:

For media which is not too sensitive.

Advantages:

 •  Heatingmuchmore

rapid than PID

Disadvantages:

 •  Possibleoverheatingof

up to 10K

Set

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Ika RET control-visc User Manual Page 24

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