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The attribute to be changed will be automatically highlighted and will
advance to the next attribute if no
2. To change an attribute, push
selected.
The current date and time will be shown on the display.
Adjust the display contrast
1. Push the
and
at the same time to enter the Display contrast menu.
2. Use the
or
to adjust the contrast of the display. The meter returns
automatically to the measurement screen after 3 seconds.
Change the stirring settings
The stirring speed can be changed during calibration and during a
measurement.
1. Push
during a calibration or during a measurement to enter the
stirring menu.
2. Use the
or
to change the stirring speed in %.
Change the temperature units
The temperature units can be changed to Celsius or Fahrenheit.
1. From the main screen push
2. Push
to select between Celsius or Fahrenheit.
Maintenance
W A R N I N G
Multiple hazards. Do not disassemble the instrument for maintenance. If the
internal components must be cleaned or repaired, contact the manufacturer.
or
is pushed.
or
when the highlighted attribute is
.
C A U T I O N
Personal injury hazard. Only qualified personnel should conduct the tasks
described in this section of the manual.
Clean the instrument
N O T I C E
Never use cleaning agents such as turpentine, acetone or similar products to clean
the instrument including the display and accessories.
Clean the exterior of the instrument with a moist cloth and a mild soap
solution.
Clean the probe
Clean the probe as needed. Refer to
more information about cleaning. Refer to the probe documentation for
information about the probe maintenance.
Use the cleaning agents listed in
probe.
Table 1 Cleaning agents for the pH probe
Contamination
Proteins
Grease, oils, fats
Limescale
Replace the magnetic stirrer
If the magnetic stirrer does not start, follow the numbered steps to replace
the magnetic stirrer.
Troubleshooting
on page 11 for
Table 1
for contaminations on the pH
Cleaning agent
Pepsin cleaning solution
Electrode cleaning solution
0.1 N HCl solution
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