Rounding, Backlight, Contrast – Vaisala PTB330 User Manual
Page 57: Keypad lock
Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 55
Rounding
Round off one decimal by using the rounding function. The default
setting is rounding off. Rounding has no effect on quantities without
decimals. To use the rounding function:
1. Open
the
MAIN MENU by pressing any of the arrow buttons.
2. Select
Display and then press the right arrow button.
3. Select
Rounding and press the ON/OFF button.
4. Press
the
EXIT button to return to the basic display.
Backlight
As a default the display backlight is always on. In the automatic mode
the backlight stays on for 30 seconds from the last press of any button.
When pressing any button, the light turns on again. To change
backlight preferences:
1. Open
the
MAIN MENU by pressing any of the arrow buttons.
2. Select
Display and then press the right arrow button.
3. Select
Backlight, press the CHANGE button.
4. Select
On/Off/Automatic, then press the SELECT button.
5. Press
EXIT to return to the basic display.
Contrast
1. Open
the
MAIN MENU by pressing any of the arrow buttons.
2. Select
Display, press the right arrow button.
3. Select
Contrast, press the ADJUST button.
4.
Adjust the contrast by pressing the left/right arrow buttons.
5. Press
OK and EXIT to return to the basic display.
Keypad Lock
This function locks the keypad and prevents unintentional button
strokes. To use keypad lock:
1.
To lock the keypad, press and hold down the left function button
for 4 seconds (at any display).
2.
To unlock the keypad, press and hold down the OPEN button
for 4 seconds.