Manual

What to do if... handylab multi 12
70
ba75371e03 11/2009
Measured value
too low
Measured value
too high
6.3 Conductivity system messages
Error message OFL
Error message E3
Cause Remedy
– Insufficient flow – Provide flow to the probe
Cause Remedy
– High amount of dissolved
substances
– Correct solubility function
using the salinity equivalent
– Air bubbles bump on the
membrane with high velocity
– Avoid direct flow to the
membrane
– The carbon dioxide pressure is
too high (> 1 bar)
– Measuring not possible
Cause Remedy
The measured value lies outside
the measuring range
– Measuring cell not connected – Connect measuring cell
– Cable broken – Replace measuring cell
Cause Remedy
– Measuring cell contaminated – Clean cell and replace it if
necessary
– Unsuitable calibration
solution
– Check calibration solutions