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4. Operating procedures
Operating procedures (settings for overheat prevention device)
As a safety measure for preventing overheat, a hydraulic overheat prevention device (manual return)
is installed.
Temperature setting range and functions
The temperature setting range for the standalone overheat prevention device is “50
℃~
320
℃
.”
When the temperature in the bath keeps rising beyond the controller set temperature and reaches the
set temperature of the overheat prevention device, the heater circuit trips and the controller operation
is shut off.
When the overheat prevention device is activated, it will not be released until the ELB is turned on.
How to set temperature
Set the temperature scale
to the arrow
Setting the overheat prevention temperature
・
Set the temperature scale on the hydraulic overheat
prevention device installed on the right side of the unit to
the arrow in the diagram shown left.
・
Turn the ELB to “OFF” and wait for a while without opening
the door.
・
After a while, turn the ELB“ON.”
(Turn the ELB“ON”.)
Caution
①
Set temperature as “set tempe20
℃
” as a rough standard and add 5
℃
to the setting
if the device functions improperly.
②
The temperature setting range for the standalone overheat prevention device is “50
℃~
320
℃
.” Be sure to set the overheat prevention activation temperature correctly otherwise the
device may not start, the overheat prevention device is activated before temperature in the
bath increases completely, or a fire or other unexpected accidents may result.
The temperature is set at 320
℃
on shipping from the factory.
③
The overheat prevention device has been designed to prevent overheating of devices not to
protect samples. The device does not prevent accidents caused from use of explosive or
flammable substances.