![background image](http://html.mh-extra.com/html/benq/su931/su931_user-manual_2735001048.webp)
48
Using the projector
En
gl
ish
Operating in a high altitude environment
We recommend that you activate
High Altitude
when your environment is higher than 1500 meters
(around 4920 feet) above sea level, or whenever the projector will be used for extended periods of time
(>10 hours) without shutdown.
To activate High Altitude:
1. Press
MENU/EXIT
and then press / until the
System Setup: Advanced
menu is highlighted.
2. Press to highlight
High Altitude
.
3. Press /
to
select
On
. A confirmation message is displayed.
4. Highlight
Yes
and press
MODE/ENTER
.
Operation under High Altitude may cause a higher decibel operating noise level because of increased fan
speed necessary to improve overall system cooling and performance.
If you use this projector under other extreme conditions excluding the above, it may display auto shut-down
symptoms, which is designed to protect your projector from over-heating. In cases like this, you should
switch to High Altitude to solve these symptoms. However, this is not to state that this projector can
operate under any and all harsh or extreme conditions.