8
WIKA operating instructions, model CTD4000
14366831.01 05/2020 EN/DE
EN
4. Design and function
1
Connections for temperature switch test
For further information, see chapter 6.8 “Switch test
function”.
2
Switch test LED
Lights up when the temperature switch contact is
closed.
3
Display 1
Displays the value of the actual temperature or the
value of the function selected.
4
Stability LED
When the LED is flashing, the temperature is stable.
5
Display 2
Set temperature display
The parameters are displayed in the function menu.
6
Switch test
When the LED is flashing, the function is active.
7
Button [E]
Confirms the selected values or the selected function.
8
Button [▼]
Lowers the value which is shown on display 1 or
display 2.
By holding the
[▼]
button down, the speed is
increased.
9
Button [▲]
Increases the value which is shown on display 1 or
display 2.
By holding the
[▲]
button down, the speed is
increased.
10
Function menu button [F]
By pressing both the
[F]
and
[▲]
buttons at the same
time, the 2nd level menu is accessed.
With the
[F]
button, the function is called up and can
be browsed in the menu level.
11
Heating LED
Lights up when the calibrator is heating.
12
Cooling LED
Lights up when the calibrator is cooling.
Controls
Overview of the operating elements of the temperature controller
12
8
9
7
10
2
4
3
6
5
1
11
4.3 Description of the temperature controller
The temperature controller is a PID microprocessor, which
can be set from -30 ... 140 °C, 0 ... 375 °C and 0 ... 650 °C
[-22 ... 284 °F, 32 ... 707 °F or 32 ... 1,202 °F]. The display
indicates the current temperature and the set point.
