17
4. OPERATION PROCEDURES
Operation Modes and Functions
Operation functions for this unit are defined in the table below:
№
Name
Description
Page
1
Overheat
prevention
Auto
overheat
prevention
This function is set to automatically activate (auto reset)
when chamber temperature exceeds the temperature
setting by 12°C.
19
Overheat
prevention
device
Although this device uses the same power source,
display, and keypad as the control panel, it has an
independent temperature monitoring circuit, CPU, sensor
and output circuit. An overheat prevention temperature
can be manually specified using the control panel.
Unit operation is terminated when device is activated.
Operation may be restarted when the main circuit breaker
(MCB) is switched off (wait 5 seconds), then back on
again (manual reset).
2
Calibration offset
Calibration offset function is to compensate for differences
in the temperature reading (as taken by unit sensor) and
actual chamber temperature (as taken manually with a
thermograph). Unit can be offset to either the positive or
negative side of temperature line for entire temperature
range of unit
34
3
Overheat prevention
temperature calibration
function
The temperature specified for the overheat prevention
device is automatically recalibrated when temperature
reading is corrected with the calibration offset function.
－
4
Power failure recovery
Unit can begin operation again with the same settings (in
memory) as before the power failure occured. Simply
press the START/STOP key to begin the operation over from
the beginning.
－
5
Keypad lock
This function locks all keys (except SUBMENU and
START/STOP) during operation.
Lock function is set or cancelled using the SUBMENU key.
35
