Instrument calibration
Turb 2000 Series
20
ba75695e03 10/2013
12. Insert the requested 0.02 NTU standard. Index the standard to the lowest value on the upper
display.
13. Press the
OK
button to accept the calibration.
14. The lower display will count down the progress of the calibration step.
15. The instrument will return to AUTO mode at the end the calibration.
Note
During calibration, the fan inside the instrument is turned off to extend the life of the
desiccant. The fan will be turned on during calibration countdowns and after returning to the
AUTO mode or after five minutes, which ever comes first. It is recommended that the
measurement chamber be kept covered during the calibration period and that the flow
through cuvette be replaced immediately after the calibration to prevent premature
saturation of the desiccant.
4.3 Calibration
error
If the screen shown below, is displayed after calibration, the internal diagnostics have determined that
the calibration standards were either bad or that they were inserted in the wrong order. Either check the
standards and recalibrate or restore the factory calibration see section 5.2 R
ESTORING FACTORY
SETTINGS
. The instrument cannot be used without performing one of these operations.
To recalibrate press the MODE key and start the calibration sequence again. To restore the factory
calibration, push and hold the
button. Now push and release the
OK
button then release the
button.
