Campbell Scientific HS2 and HS2P (HydroSense II) - Manual (Page 41)

Appendix A. Configuration Menus
A.11 Brightness
This menu allows the brightness of the LCD backlight to be adjusted. Since
the backlight uses a significant amount of power, reducing the brightness will
extend battery life. In bright, sunny conditions, the backlight has very little
effect and generally doesn’t help readability, so the HydroSense II detects the
ambient light conditions and automatically turns off the backlight when
exposed to bright daylight. Using the buttons, set the brightness to an
acceptable level. Press
to save or to quit.
A.12 Backlight on Time
The LCD backlight turns on whenever a button is pressed. This menu
configures how long it remains lit after each press. The buttons change
the period and
will save it. Press to exit without saving.
Setting the backlight on time to “Always On” will increase average power
consumption significantly, and drastically reduce battery life.
A.13 Light Sensing
In bright, sunny conditions, the LCD backlight has very little effect on
readability, so the HydroSense II detects the ambient light level and switches
the backlight off in bright conditions. This feature can be disabled using this
menu. Using the buttons, select ON or OFF from the list and press
to save the setting. Press to quit.
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