ITS Telecom DD890, Руководство пользователя, Страница: 7 / 8

7
REC
button for 3 seconds to return to normal
operation.
5.Backlight Display
Press the
Backlight button to turn on the
backlight. It will remain on for 40 seconds.
6. Automatic Power Off
The meter will automatically shut off after 20
minutes to conserve battery life. To disable Auto Power
Off , hold down the HOLD button and turn on the meter
on , An “ n
” will appear in the display indicating that
Auto Power Off mode is disabled. The meter will return
to normal operation when it is turned off.
7.Units
Press the Unit button momentarily and the meter will
cycle through the 11 available units of measure as
indicated by the cursor on the bottom of the display.
USB
The meter has a USB port for use with the optional PC
interface Data Acquisition Software./Hardware kit.
Error Codes
An error message will appear on the display if the
meter fails an internal diagnostic test. And it will freeze
all the buttons.