Display contrast setting, Using display/keypad, Using serial line – Vaisala MMT330 User Manual
Page 74: Keypad lock (keyguard)
User's Guide _______________________________________________________________________
72 ___________________________________________________________________ M210733EN-G
Display Contrast Setting
Display contrast is automatically adjusted based on the ambient
temperature. However, depending on the installation location and
viewing direction, it may be necessary to fine-tune the contrast manually.
Using Display/Keypad
1.
Open the Main Menu
by pressing any of the ▲▼◄► arrow
buttons.
2.
Select Display
, press the ►arrow button.
3.
Select Contrast, press the ADJUST button.
4.
Adjust the contrast by pressing the ◄► arrow buttons.
5.
Press OK and EXIT to return to the basic display.
Using Serial Line
Use the serial line command CON to view or set the display contrast.
CON [xxx]
where
xxx
= Contrast value for display. Recommended range -9 ... 9,
default 0. Negative values make screen lighter, positive
values make it darker.
Example (view current contrast setting):
>con
Contrast : 0
>
Example (set contrast to 5):
>con 5
Contrast : 5
>
Keypad Lock (Keyguard)
This function locks the keypad and prevents unintentional key presses.
1.
Keep pressing the left-hand function button for 4 seconds to lock
the keypad (at any display).
2.
To unlock the keypad, press the OPEN button for 4 seconds.