Dissolved oxygen measuring device
Maintenance | 6
B-H86.0.21.DB2-1.0
19 / 30
If the calibration is not completed successfully an error message is displayed.
(AL ERR.
appears in the display See
Error and system messages [
}
p. 25]
. Confirm the error
message pressing the
Function key
. The product restarts and the value of the last suc-
cessful calibration is restored.
6.3.2 Battery indicator
If the empty frame in the battery display blinks, the batteries are depleted and must be
replaced. However, the device will still operate for a certain length of time.
If the
BAT
display text appears in the main display, the battery voltage is no longer ad-
equate for operation of the product. Now the battery is fully depleted.
