AND MPA-10, Instruction Manual

Page: 42 / 56

40
Problem Reason How to fix
Amount dispensed is
too much Liquid on outer part of
tip Refer to “10 PIPETTING FOR
ACCURATE DISPENSING”
Amount dispensed is
too little Solvent evaporates
and increases
pressure inside the tip. Refer to “10 PIPETTING FOR
ACCURATE DISPENSING”
Device produces an
abnormal noise Piston becomes stuck
When the pipette
hasn’t been used for a
while inner piston parts
can become stuck due
to grease. After moderate usage device
should return to normal
functionality.
Tip won’t eject Tip length is incorrect Refer to “12 ADJUSTING
TIP EJECTOR HEIGT”
Tip holder discoloration Dispensing acids for
long times.
If device functionality is affected
replace the lower part.
01 Err Connection nut (Refer
to “7-5 Parts names
and materials”)
is loose Reattach the connection nut.
Press the reset key and reset
the device.
02 Err
98 Err Stepping motor failure Press the reset key and return
the motor position to the origin