6 Maintenance and Troubleshooting
6.5 Troubleshooting
D-52/53/54/55
167
When there is a problem with the main unit of the
pH meter...
When there is a problem with the sample
solution...
There is no
reference
solution
remaining.
Fill the electrode with new reference
solution, as noted in the electrode
operation manual.
The wrong
reference
solution is being
used.
Use the correct reference solution.
Cause
How to solve problem
There is a motor
or other device
causing
electrical
interference.
Move the meter to a place where it
is not subject to dielectric effects.
Be sure to ground devices that are
using commercial electricity.
The electrode is
not connected
correctly.
Connect the electrode correctly.
Cause
How to solve problem
The liquid
junction is not
immersed in the
sample solution.
Immerse the electrode in the
sample solution up until the liquid
junction or deeper.
Some effects of
the sample
Determine if this is the cause by
measuring with a stable standard
solution.
Cause
How to solve problem
Содержание D-25
Страница 2: ......
Страница 11: ...CONTENTS VIII HORIBA ...
Страница 31: ...1 Overview of the Meter 1 9 Using the protective cap D 53 54 55 20 HORIBA ...
Страница 75: ...2 Taking Measurements 2 9 Dissolved oxygen DO measurement D 55 64 HORIBA ...
Страница 139: ...4 RS 232C communications 4 5 Communication example using the HyperTerminal 128 HORIBA ...