A&D Weighing MPA-1200 - Manual (Page 38)

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14. TROUBLE SHOOTING
The electronic pipette has a self-check function. When there is an error in these results,
the pipette displays a following error massage “Err XX”. When an error cannot be
released even after applying a following remedy to the pipette, please apply for a
repair. (Refer to “15. WHEN REQUESING REPAIRE”.)
Circumstances Considerations for cause Remedies
“ Err 01” The automatic position
resetting is not working. If the connection nut (Refer
to “7-5 Parts names”) is
loose, retighten it.
Press the Reset key to reset
the pipette.
“ Err 02” Step motor error. Press the Reset key to reset
the pipette.
The sample liquid
lingers inside the
pipette tip. Compatibility in characteristics
between the sample liquid and
pipette tip. Select the reverse
operation.
Use a tip that matches the
sample liquid.
A wet tip was used. Use a new tip.
The tip is improperly attached. Attach the tip properly.
Quality error of the pipette tip.
Use a high quality tip.
Sealing problem in the piston
area. Replace the lower part of
the pipette.
The sample liquid
leaks from the
pipette tip, or the
aspirated volume
is small.
Wear on the tip holder. Replace the tip holder.
Weak battery. Recharge the battery.
The tip ejector is improperly
attached. Disassemble and then
reassemble the lower part of
the pipette.
The tip holder is clogged. Remove the clog.
Aspirating error
The piston movement is not
smooth. Clean the piston.
Replace the lower part of
the pipette
Contact failure of the battery. Set the battery again.
Dirt on the battery terminal. Replace the battery with a
new one.
Battery discharge. Recharge the battery.
The power cannot
be turned on.
Deterioration of the battery. Replace the battery with a
new one.