Bio-Rad ChromLab™ Software - Manual (Page 66)

3 | System Control
64 | NGC Chromatography Systems and ChromLab Software
Calibrations
The NGC instrument arrives factory calibrated. For the most part, the instrument will
not require further calibration. The pH probe, however, should be recalibrated each
day the instrument is used and when there are large fluctuations in temperature
because pH probe settings drift with time.
In addition to the pH probe, ChromLab includes settings for calibrating the
following:
 Pump flow rate
 Sample pump pressure
 System pressure
 Column switching valve pressure
 Conductivity monitor
Calibrating these modules is optional.
Calibrating a Module
Note: You cannot run a method during calibration.
On the Tools menu, clicking Calibrate displays a Calibration dialog box in which you
can select a module to calibrate. The System Control window also appears with the
title Calibration in Progress in the title bar.
To select a module to calibrate
 Select a module in the Calibrate dropdown list at the top of the Calibration
dialog box.
Instructions for calibrating the module you selected appear in the dialog box.