52
5. Precautions on Handling
Warning and caution
17.
Take care for the temperature in the furnace after operation is completed.
If the cooling fan of the unit stops at a high temperature, the external package may overheat or
the fuse may be disconnected. Even if operation has been completed, do not turn the ELB OFF
or remove the power plug while the temperature in the furnace is 600
℃
or higher. (Excluding
an emergency)
18. Place specimens on the furnace floor plate.
When placing specimens in the furnace, first put the floor plate on the bottom in the furnace on
which specimens will be placed. Placing specimens directly may damage the furnace body or
cause a fire.
19. Take care for handling of specimens.
Placing too many specimens may prevent proper temperature control. Avoid operating the unit
under overload in order to assure the proper temperature precision.
Blower wind of the cooling fan is discharged at the front plate. Take care when processing
powder or smaller specimens so that they will not be dispersed.
Take care not to touch the furnace inlet material of the furnace body when placing or removing
specimens in and out of the furnace so that the furnace inlet material will not be damaged.
Damages of the furnace inlet material will adversely affect temperature control.
20. Note that the sample temperature and the measured temperature are not
always the same.
Be aware of temperature sensor which it is installed on Furnace inside upper portion and control
Furnace temperature. Therefore, if the amount of specimen is large or the equipment is in the
middle of heating, sensor detected temperature may not agree with temperature of the samples.
In particular, actual Furnace temperature will differ greatly from Read Temperature displayed on
Controller, right after opening or closing of this Equipment Door.
When a gap occurs between the temperature in the bath and the measured temperature
requiring adjustment, compensate temperature by referring to
“
P.41 Setting a calibration
offset
”
.
21.
Do not put a foreign object inside.
Do not insert a metal or an easily-combustible foreign object into the openings of the furnace
body (radiation ports or exhaust port). Otherwise, a fire, an electrical shock or burning may
result.
If any foreign objects have entered inside, immediately turn the ELB off and contact your dealer,
one of our sales offices or the general customer service center for inspection. Otherwise, a fire
or an electrical shock may result.
22.
To form a protective film of the heater.
The heater of the unit will form a protective film on its surface at a high temperature. If you
ordinarily use the unit at a relative lower temperature of 700
℃
or less, operate at 1050
℃
for 10
hours at least once so that a protective film will be formed.
23. About corrosion of the heater
The heater of this unit will corrode with chloride, fluorine or other halogens as well as natrium,
potassium or other salts and care must be taken so that such substances will not come into
contact with the heater.
Содержание FP102
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