Specifications

DELTA LTL-XL Retroreflectometer 23
WARNING: Using high backlight will drain the battery faster!
Setting the sound level
Press the MENU button and select SETTINGS / SOUND. Select KEY CLICK or SOUNDS to set
the individual sound levels for key click and warning and error sounds. Use the UP or
DOWN button to set the level at OFF or a scale from 1 to 10. Accept the setting by pressing
OK, LEFT or BACK buttons.
Auto Sleep (Power)
To save power the instrument can be setup to automatically change to Auto Sleep mode. The
Auto Sleep time can be set from 1 to 30 min. in intervals of 1 min. or it can be deactivated
(OFF). Startup will be instantaneous pushing the ON / OFF button.
Press the MENU button and select SETTINGS / POWER / AUTO SLEEP. Use UP and DOWN to
edit the auto turn sleep time. Press OK, LEFT or BACK to accept.
Auto Off (Power)
To save power, the instrument can be programmed to automatically shut off if not used.
When communicating with RSC program or when the charger is connected the instrument
will not power down automatically. The startup time will be approx. 20-25 seconds.
Press the MENU button and select SETTINGS / POWER / AUTO OFF. Use UP and DOWN to edit
the auto turn off time. The off time can be set from 1 to 8 hours in intervals of 1 hour or it can
be deactivated (OFF). Press OK, LEFT or BACK to accept.
Setting the language
Press the MENU button and select SETTINGS / LANGUAGE. Use the UP or DOWN button to
select a language. Accept by pressing the OK button or leave unchanged by pressing BACK.
Setting the temperature unit
Press the MENU button and select SETTINGS / TEMPERATURE. Use the OK button to select be-
tween Celsius and Fahrenheit. Accept by pressing the BACK button.
Setting the SMART key function
This button is user programmable to one of several functions, e.g. to clear the last meas-
urement. Press the MENU button and select SETTINGS / SMART.