Eppendorf Heat Sealer - Manual (Page 11)

11
Should you have any recurring problems with this unit, please contact our service department
or your local Eppendorf dealer. Return of the device requires its original packing.
Error Cause Solution
Plates not correctly sealed.
Evaporation problems. – Sealing time not
sufficient. – General sealing time 2 – 5
seconds; for appropriate
sealing conditions see
specifications of used heat
sealing film / foil.
– Sealing not consistent. – Turn the plate by 180° after
first sealing and hold for
another 2 – 5 seconds.
– Springs behind the heated
plate not fully compressed;
push the heater head down
on to the seal and plate
more strongly.
Heater plate impurity. – E.g. film / foil out of
place. – Cleaning of heater plate,
see chapter 5.
Instrument ON, amber heater
light off (no flickering on and
off to top up the heat to the
unit). – Excess-temperature
problem.
If the block temperature
exceeds 220 °C, thermal
cut-out removes power
to the heater. – Thermal cut-out is
non-resettable and the unit
should be returned to
Eppendorf for repair.
6 Troubleshooting
Troubleshooting
6
HeatSealer_en.fm Seite 11 Montag, 13. März 2006 1:41 13