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5. Handling precautions
Warnings and Cautions
15. Never set samples on bottom of Chamber.
Never set samples on bottom of Chamber. If samples will be processed at setting on bottom
of it, this Equipment may be not given as its full performance and become high temperature
unlikely and also cause failure.
Set samples on attached shelves properly installed on their brackets.
Do not allow samples to contact directly to side walls of Chamber.
16.Drain the sample that contains large amount of water.
When processing any wet sample, drain it thoroughly before putting it into the oven. Wet
sample may cause rusting, corrosion, dewing inside and outside the bath. In addition,
excessive temperature rise caused by such sample may affect the electric system adversely,
possibly causing leakage or failure of normal operation and finally resulting in fault.
17. Take care for processing of powder and small samples.
The unit employs Forced wind system to improve temperature distribution inside the chamber.
When processing powder or small samples, make sure that the sample will not scatter. A fire
or an electric shock may result if a flammable or a metal object enters the heater.
Operate in the natural convention manner when handling powder or small samples. When the
forced wind system is employed, the cirulatioin wind in the bath can be suppressed by setting
the variable wind speed to low, but the temperature performance is outside the scope of
guarateee. In this event, the customer is requested to confirm the temperature performance.
Heating may take some time when the amount of samples is large or when processing samples
with a larger heat burden. Check the appropriate amount as necessary and set the sample.
Also note that the temperature indication may be unstable when processing heat-generating
samples (note that sample itself must be free of fear of explosion, inflammation or ignition).
18. Note that the sample temperature and the measured temperature are not always
the same.
Be aware of temperature sensor which it is installed on the upper right depth of the Chamber
and control Chamber temperature. Therefore, if the amount of sample 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 Chamber 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.46 Setting a calibration
offset
”
.
19.
Check the following in terms of the recovery mode.
When operation stopped from a power failure and then power recovers, the unit will
automatically resume operation.
See “P.48 Setting the recovery mode” for details.
20. Be sure to set a temperature of the Independent Overheat Prevention Device.
Must be set temperature of Independent Overheat Prevention Device (IOPD).
Note that temperature of this IOPD must be set to temperature over 30
℃
higher than Target
Temperature.
Refer to Chapter 4. Operating Procedure
–“Independent Overheat Prevention Device” for how
to set and other cautions on page 54.
