Yamato Scientific Vacuum controller Vacuum controller - Manual (Page 17)

15
The Ramp Control
Display After Operation Key Explanation
1 •
Turn the power on.
2
•
After turning the power on, the fixed
value control set mode is
automatically selected. The previous
pressure set point appears blinking
on the indicator.
•
Set at 133hPa in the example on the
left.
•
The fixed value control lamp appears
blinking on the indicator.
•
The set mode lamp is on, indicating
that the set mode is ready for
operation.
3
OPERATION
MENU
•
Press OPERATION MENU to select
the ramp control mode. Then the
previous
｢Ramp Level｣ and ｢Ramp
Time ｣ appears alternately blinking
on the indicator.
•
The ramp control lamp blinks on the
operation mode indicator.
•
The set mode lamp is on, indicating
that the set mode is ready for
operation.
•
Refer to ｢Editing the Set point of the
Ramp Control ｣ (p.20),when you
change ｢Ramp Level｣ and ｢Ramp
Time ｣.
4
ENTER
•
Press ENTER and ｢Ramp Level｣
and ｢Ramp Time｣ are decided.
Then the ramp control starts. The
present pressure measurement
appears on the indicator.
•
The ramp control lamp is on, but stop
blinking.
•
The set mode ends and the set lamp
is off, The solenoid valve opens and
the solenoid valve lamp is on.
•
Until the pressure is reached to the
aimed set point, the solenoid valve
for control opens or closes according
to the ramp time. The ramp control
continues.