Using the Z Vent Ventilator
4-38
www.zoll.com
9650-002360-01 Rev. A
Specifying a Language
The ventilator is provided with the English language and a local language. (This feature is
limited to ventilators with multiple languages.).
LCD Contrast
The LCD Contrast submenu allows the user to adjust the contrast of the ventilator display
screen to optimize visibility in the current lighting environment. Given the use environment, the
ventilator automatically compensates for the temperature changes that can effect LCD performance.
However, in temperatures outside its performance specification of- 26 °C to 55 °C (15 °F to 131 °F), or
when the ventilator temperature is rapidly changing (warm storage into a very cold environment) the
contrast can fade making viewing difficult.
To adjust the LCD screen contrast, follow these steps:
1. Press the
Menu
button to display the Menu.
2.
Turn the
Dial
to highlight
LCD Contrast
, and then press the
Accept
button.
3.
Turn the
Dial
clockwise to increase contrast (counterclockwise to decrease it) while watching
the LCD screen to determine the best contrast value based on visibility, then press the
Accept
button
to set the new contrast value.
4.
Press the
Mute/Cancel
button to return to the Menu.
Note:
The contrast value is saved between uses. This may require adjusting the contrast value
when the temperature is within the ventilator’s operating range or with the next use.
In the event the LCD is not viewable due to extreme temperature conditions there is a
short cut to the contrast control. Press and hold the
Menu
button for 2 to 3 seconds.
Doing this, jumps the menu highlight directly to the contrast control where the contrast
can be adjust as described above.
LCD Brightness
The LCD Brightness control allows the user to adjust the brightness of the LCD display screen
and LED Array to optimize visibility in the current lighting environment.
The initial numerical value is 25. The brightness ranges from 0 to 32.
To adjust the brightness, follow these steps:
1. Press the
Menu
button to display the menu.
2.
Turn the
Dial
to highlight
LCD Brightness
, and then press the
Accept
button.
3.
Turn the
Dial
clockwise to increase brightness (counterclockwise to decrease it) while
watching the LCD screen and LED Array to determine the best brightness value based on
visibility, then press the
Accept
button
to set the new brightness value.
4.
Press the
Mute/Cancel
button to return to the Menu.
