© MAHLE
10 | ACX2120H | Product description
en
1
2
3
4
Fig. 4:
Display and operating unit
High-pressure gauge
Low-pressure gauge
LCD display
Keypad
The pressure gauges (Fig. 4, Pos. 1, 2) of the display and operat -
ing unit are used to monitor the pressure during the individual
vehicle A/C service phases. The status of the various service
phases during maintenance is displayed on the LCD screen
(Fig. 4, Pos. 3).
The menu selection and necessary entries are made by way of
the keypad (Fig. 4, Pos. 4) integrated in the panel.
If a situation arises where the unit software requires updated,
MAHLE has a USB stick available for updating the ACX2120H
software. The USB stick can be inserted in the USB socket to
perform updating of the firmware/software.
3.4
User interface
3.4.1
Selection and function keys
All settings, controls and service functions are available in the
pages shown on the LCD display. Data entry and moving of
the cursor is controlled by the keypad. The LCD displays the
service equipment's status, the progress of A/C system serv -
ice and any alarms/error messages. When a button is pressed,
a beep sounds.
The following buttons are available:
Fig. 5:
ACX2120H keypad
Keys
Name
Function
©
Up
To move up in the menu options or data
ª
Down
To move down in the menu options or
§
Left
Arrow to decrease data value
¨
Right
Arrow to increase data value
Keypad/
Input Keys
To enter a text with numbers and/or char -
acters. To enter letters/symbols, push
key multiple times to select one of the let -
ters available under that key - just as the
keyboard of a phone to compose SMS.
Enter T
Escape
To interrupt the operation in progress
3.4.2
Input keys
The input keys can be used to enter letters, numbers and special
characters in the input boxes. If a key is pressed several times
in succession in the input box, all the characters which can be
used for this are displayed.
2
4
3
1
