Vaisala PTU300 User's Guide download pdf (Page 64)

User's Guide ______________________________________________________________________

62 __________________________________________________________________ M210796EN-A

4. Select On/Off/Automatic, press the SELECT key.

5. Press the EXIT key to return to the basic display.

Display Contrast Setting

1. Open the MAIN MENU by pressing any of the arrow keys.

2. Select Display, press the right arrow key.

3. Select Contrast, press the ADJUST key.

4. Adjust the contrast by pressing the left/right arrow keys.

5. Press the OK key and then EXIT to return to the basic display

Keypad Lock (Keyguard)

This function locks the keypad and prevents unintentional key presses.

1. Press and hold down the left function key 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 and graphical views are available but access elsewhere

in the menu is locked. The key symbol indicates the activation of this

feature.

1. Open the MAIN MENU by pressing any of the arrow keys.

2. Select System, press the right arrow key.

3. Select Menu PIN, press the ON key.

4. Enter a PIN code by using the up/down arrow keys. Move to the

next digit by pressing the left/right arrow keys. 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.

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Vaisala PTU300 User's Guide Page 64