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Operation
38
115051
Settings required for the control behaviour of the controller:
Designation
Explanation
Software
WELCH-Control
521
Control panel
at the controller
mode
MAIN MENU
1
- manual
(manual pressure setting for boiling pressure)
2
- automatic
(automatic finding of the boiling pressure)
3
- low pressure
Operation without regulation
There are only the modes meaningful for their appli-
cation adjustable.
language
-
english, german, french, spain
-
Configuration,
language
English, Deutsch, Français, Español
pressure unit
pressure unit
mbar, torr, psi, hPa
VENTILATE
on STOP
-
ON
- automatic venting after STOP is on
OFF
- automatic venting after STOP is off
-
VENTILATE
on STOP
0
- closed
1
- open
Auto Restart
-
OFF
- no function
ON
- The program works automatically continues
after power failure or shutdown.
-
Auto Restart
0
- no function
1
- The program works automatically continues
after power failure or shutdown.
manual, setpoint
setpoint
Enter a setpoint pressure value between 0 and 1100
mbar.
manual, hysteresis
hysteresis
Enter a hysteresis value between 0 and 1100 mbar.
pressure drop,
ramp num
No. of pressure
ramps
Number of possible ramps 1, 2 , 3
P start, ramp 1
– 3 start cycle 1 – 3
in adjusted pressure value (example: mbar)
P lower, ramp 1
– 3 cycle time 1 – 3
in second absolute
T lower, ramp 1
– 3 cycle pressure 1 – 3
in adjusted pressure value absolute (example: mbar)
auto stop time
auto stop time
Hunting time in second
auto limit
auto limit
Threshold value for detecting the boiling point
(selected pressure unit / min)
auto speed
auto speed
0 ... 100%
Reduces the frequency of rotation / rotational speed
to a percentage of the maximum speed
of the pump motor in order to determine the
boiling point smoothly.
read config
-
Read out current parameter values from the
controller and display in the Settings dialog.
send config
-
Values changed in the Settings dialog are stored in
the controller. The controller confirms reception with
a signal tone.