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7
TURNING ON/OFF THE METER
MODEL 6309 PDTF
SELF DIAGNOSTICS
EEPROM
RAM
ROM
VERSION :3.00
:OK
:OK
:OK
By just plugging the unit to a correct AC voltage, the unit will be ready for use. There is no
Power key so unplugging and plugging the unit will turn OFF or turn ON the unit respectively.
After the unit is turned on, it will perform some basic self-diagnostics and will display “OK” or
“BAD”. If you received any “BAD” messages turn OFF the unit and turn it ON again. (See
ERROR DISPLAYS AND TROUBLESHOOTING)
.
If the message persists then you might need to call your distributor. (See
WARRANTY
) .
After the self-diagnostic is complete, the temperature reading will be displayed on the lowest
part of the screen and the user is ready to make DO or pH measurements.
MODEL 6309PDTF MODES
A. Measure Mode
Turning ON the unit will always display in the measure mode.