44
29. MAINTENANCE
Cleaning the balance:
•
Use a soft cloth containing a neutral detergent to clean the balance.
•
Avoid using organic solvents, chemicals, or dusting sprays as they
may damage the coatings of the balance or display panel.
•
The pan can be removed and washed with water. Verify that the pan is
completely dry before replacing it on the balance.
30. TROUBLESHOOTING
Items identified by [S] may require factory service. Please contact your
CAS corporation representative if these problems occur.
When
Trouble
•
Cause
→
Countermeasure
Before
measurem
ent
Nothing appears
on the display.
• AC adaptor is disconnected.
• The power supply is turned OFF.
• Display
fluctuates.
• The stability
symbol does not
light easily.
• Poor
repeatability of
measured va lues.
• Weighed values
deviate from
known values.
•
CALd
is
frequently
displayed.
• The balance is exposed to vibration or drafts.
→
Change the installation site.
→
Change the average time and stability
detection band.
• Volatile sample.
→
Put a lid on the sample before weighing it.
• Sample is charged.
→
Put the sample in a metallic container and
then weight it.
→
When weighing a plastic disk etc., place a
sheet of metal larger than the sample on the
pan, and then, weigh the sample.
• The temperature of the sample is higher or
lower than that of the weighing chamber.
→
Make the temperature of the sample
equivalent to that of the weighing chamber.
→
Set the balance to the High Stability mode.
• The balance is exposed to electric noise or
strong electromagnetic wave.
→
Separate the balance and the noise source.
• The balance is exposed to air currents or there
are air convections in the weighing chamber.
→
When the balance is not in use, keep the
door of the weighing chamber open about 1
to 2mm.
• Mechanical damage.
→
[S]
During
measurem
ent
• The balance
frequently enters
automatic span
calibration.
• Extreme variation in room temperature or the
temperature of unit body.
→
Relocate the balance to a location with little
temperature variation.
