Thermo Scientific
22 | ALPS30
Replacing the Unit Fuse
The unit fuse should only be replaced by a qualified technician.
DANGER
The unit fuse may blow as a result of an internal unit fault or if the
VOLTAGE SELECTOR SWITCH has been incorrectly set (see
). This fuse should only be changed after the unit has
been thoroughly inspected and must be replaced with the exact type
specified in
.
Thoroughly inspect the unit for any signs of damage, loose components, or liquid
spillage. If in doubt, please contact Thermo Fisher Scientific at the number given in
DANGER
The FUSE HOLDER is removed by disconnecting the mains power cord
and then using a small, flat-bladed screwdriver to carefully unclip and
pull open the FUSE HOLDER (see
).
Verify that the new fuse is the correct one for the operating voltage
being used (see
Table 5: Mains Voltage Selection
). After replacing
the fuse, push the FUSE HOLDER firmly back into the POWER INLET
MODULE.
The unit must be safety tested for excess current leakage before being
repowered from the mains supply.
Over-Temperature Safety Cutout
The unit is fitted with a non-resettable, thermal fuse which blows if the HEATER
PLATE temperature exceeds 385ºF (195ºC).
In the unlikely event of a fault condition, this fuse will permanently disable the
heater to protect the user and the unit from injury or damage. If this occurs, the
amber HEATER LED will illuminate, but the HEATER PLATE will remain cold, and
the ALPS30 unit will need to be returned for repair.
Chapter 7: Maintenance and Servicing
