Chapter 4 ________________________________________________________________ Operation
VAISALA_______________________________________________________________________ 75
Keypad Lock (Keyguard)
This function locks the keypad and prevents unintentional key presses.
1. Press and hold down the left function button for 4 seconds to lock
the keypad (at any display).
2. To unlock the keypad, press and hold down the same key for 4
seconds.
Menu PIN Lock
You can prevent unauthorized changes of the device settings by
activating the menu PIN lock. When this function is activated, the basic
display, graphical view, and device information displays are available,
but access to the menus is locked. The key symbol indicates the
activation of this feature.
1. Open the Main Menu by pressing any of the arrow buttons.
2. Select System, press the right arrow button.
3. Select Menu PIN, press the ON key.
4. Enter a PIN code by using the up/down arrow buttons. Move to the
next digit by pressing the left/right arrow buttons. Press the OK
key to confirm the setting. Now the PIN lock is on and a key
symbol is shown in a display.
5. Press the EXIT key to return to the basic display. Returning to the
menu is possible only by entering the correct PIN code.
When you want to turn off the PIN lock, open the menu by entering the
PIN code and select System, Menu PIN, press the OFF key.
In case you have forgotten the PIN code, open the transmitter cover and
press the ADJ button once. Wait for a few seconds and the Adjustment
menu opens. Select Clear menu PIN, press the CLEAR key.
NOTE
You can also disable the keypad completely with serial command
LOCK. See section Locking Menu/Keypad using Serial Line on page
116.
Factory Settings
Use the display/keypad to restore the factory settings. This operation
does not affect the adjustments. Only settings available in the menus are
restored.
1. Press any of the arrow buttons to open the Main Menu.
2. Select System, press the right arrow button.
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