26
4. Operating procedures
Preparing a program
MEASURED TEMP.
℃
HEATER
ALARM
AUTO STOP
AUTO START
ENTER
SET
TEMP.
OVER TEMP.
PROTECTOR
FIXED TEMP.
RUN
STOP
SUB
MENU
TIMER
FIXED
TEMP.
PROGRAM
PROGRAM
⑨
Press the ENTER key. The character t-1
that
indicates the set time of the first step is displayed and the
current set time flashes.
* To set a time you need to know the heating capacity (or
cooling capacity) of the unit beforehand.
* As an example, DVS 402 model requires about 75 minutes
to increase room temperature to 250
℃
. Therefore,
assuming the current temperature to be 25
℃
, heating
capacity can be estimated roughly as three minutes to raise
one
℃
meaning 75 minutes is necessary to increase to
250
℃
. In the example, the time has been estimated as 80
minutes with some allowances added.
* The maximum time that can be set for the timer of each step
is 999 hours 50 minutes.
⑩
When time has been set, press the ENTER key.
The temperature set character Sv-2 for the second step is
displayed.
Input temperature and time of each step following the
programming sheet.
⑪
When you want to repeat a certain program pattern (program
repeat) in the middle of a program as in the example, a special
procedure will be required. In this case, set time (t-7 in the
example) for the step to be repeated (step 7 in the example)
and press the SUB MENU key without pressing the ENTER
key. Now you can enter the repeat function set mode.
*For operations of the program repeat function and how to
register (input), follow procedures in
“
Program repeat
operation
”
on page 28.
⑫
When setting the temperature and time for the final step has
been completed, the screen returns to the initial setting screen.
Request for operation
check
Prior to start actual operation with samples installed, be sure to
perform no-load operation to check if the set temperature and the
set time is appropriate.
MEASURED TEMP.
℃
HEATER
ALARM
AUTO STOP
AUTO START
ENTER
SET
TEMP.
OVER TEMP.
PROTECTOR
FIXED TEMP.
RUN
STOP
SUB
MENU
TIMER
FIXED
TEMP.
PROGRAM
PROGRAM
5. Starting the program operation
Press the RUN/STOP key for about one second. The set
program operation starts.
The PROGRAM lamp illuminates and steps of the present
operation will be displayed from the step St-1
on the SET
TEMP. display.
*Press the
▼
key during operation to check the set temperature
and the remaining time for each step being operated on the SET
TEMP. display.
