beautypg.com

Conductivity monitor – Bio-Rad ChromLab™ Software User Manual

Page 260

background image

B

| Troubleshooting the Instrument

258

| NGC Chromatography Systems and ChromLab Software

Conductivity Monitor

Symptom

Possible Cause

Possible Solution

Conductivity values are
higher or lower than
expected.

The conductivity monitor might
need calibration.

Recalibrate the conductivity
monitor. In ChromLab, select
Tools > Calibrate > Conductivity
Monitor. Complete the
calibration steps in the dialog
box.

Note:

The relationship

between the conductivity
reading and salt
concentration is not linear.
The curve will flatten out at
higher salt concentrations.

Gradient conductivity
trace is distorted.

The mixer capacity is incorrect.

See Table

2,

Flow rates of

supported mixer barrels for the
F10 pumps, on page

63

for

information about mixer barrel
sizes.

See

Replacing the Mixer

Components on page

186

.