3. Design and function
3.5 Function keys and LEDs
The calibrator's controller can be easily operated via four keys.
Fig. 3: Overview of the operating elements on the front of the controller
Function keys and their meaning:
Recall key, key U (U key)
1
Recall the stored set temperatures
This key can be defined individually via the parameter
"USrb". In its basic setting, one can select the memory
locations SP1 to SP4 when the key is pressed for
longer than 1 s.
Increase key, key ▲ (UP key)
2
Increase of values to be set
■
Selection of individual menu items
■
Go back up one menu level
■
The key is used for increasing a value to be set and
selecting parameters. If the key is held down, it takes
the user to the previous menu level, and remains there
until the programming mode is exited. Outside of the
programming mode, this key allows display of the
current, controlled output power.
Decrease key, key ▼ (DOWN key)
3
Reduction of values to be set
■
Selection of individual menu items
■
Go back up one menu level
■
The key is used for decreasing a value to be set and
selecting parameters. If the key is held down, it takes
the user to the previous menu level, and remains there
until the programming mode is exited.
Programming key, key P (P key)
4
Access to the set temperature parameter
■
Access to the menu items and parameters
■
Input confirmation
■
With this key one confirms a selection. If it is pressed
for longer than 5 s, then one reaches the program
level. One can exit the program level at any time using
the UP key.
WIKA operating instructions temperature dry well calibrator, model CTD9100-ZERO
14
13
12
11
10
9
1
2
8
7
6
5
4
3
Flashing LEDs and their meaning:
LED SET
5
When blinking, access to the program menu is
possible.
LED AL2
6
Alarm output (status) AL2
LED AL1
7
Alarm output (status) AL1
LED + Shift index
8
The temperature value is greater than that set in
parameter "AdE"
LED = Shift index
9
The temperature value is within the span of the set
parameters [SP+AdE ... SP-AdE].
10 LED – Shift index
The temperature value is lower than that set in
parameter "AdE"
11 LED Cool
The calibrator is cooling
12 LED Heat
The calibrator is heating
13 Current temperature display
14 LED AT/ST
"Self-tuning" function is activated (lit) or "Auto-tuning" is
currently running (blinking)
EN
9