BrandTech Scientific Transferpette-8/-12 electronic - Manual (Page 70)

Troubleshooting
70
If an error occurs, the instrument display shows "Err" and the error number is also shown. The instrument
will now only react to the ENTER key. Pressing the ENTER key will attempt to restart the instrument.
Therefore, a reference run is automatically requested.
Problem Error message Possible cause Corrective action
Instrument does
not react Battery discharged
or faulty Charge battery for at least
5 min without operating,
then only operate with
charging cable attached
until battery is recharged.
Replace battery if needed.
Faulty electronic
component Send in the instrument
for repair.
Instrument does
not react Faulty electronic
component Send in the instrument
for repair.
Instrument does
not react Unpredicted program
error Confirm error by press-
ing the ENTER key. The
instrument is reinitialized.
Instrument does
not react No battery inserted Insert battery
Battery is defective Replace battery
Faulty electronic
component Send in the instrument
for repair.
Display is dark
—
Electrostatic discharge Remove and insert
the battery.
Faulty electronic
component Send in the instrument
for repair.
Tip drips/
instrument not sealed
or volume error
—
Improper tip Only use quality tips
Tip is not properly
seated Press tip in firmly
Piston, nose cone or
seal is contaminated or
damaged Clean the instrument/
replace the seal.
Oil piston.
Liquid is not aspirated
or there is a loud motor
noise — Piston movement is
limited Unscrew the manifold and
move the metal part in the
middle by hand.