Calibrate Vacuum Pressure Sensor - Heidolph LABOROTA 20 Instrucciones De Empleo

distributor, i.e. point 1 (see page 93) as soon as the temperature sensor is installed and connected
with #3 plug connector (boiling temperature sensor) (see page 93).
For Set T auto you need to select the Set T auto LED.
Next step is entering final pressure; exceeding this value automatically discontinues distillation.
After about 5 seconds, "Endp" appears in display II, at this point select final pressure. Final
pressure selected appears in the display I.
Display I
1 2 5
EndP
Reaching this final pressure during distillation, will discontinue distillation right away.
Also refer to Auto Start Stop function (see page 89)
If distillation should not be discontinued, enter "1" in "Endp mode", which never can
be reached by physical condition.
For hysteresis setting select LED  Vapor.
Not pressing a key for 5 seconds, display returns to "Act" mode. The last figure entered is saved.
Start evacuation, as described in page 85.

16. Calibrate Vacuum pressure sensor


Vacuum pressure sensor and vacuum valve must be
installed on the LABOROTA 20 control and a vacuum
pump connected.

A separate, calibrated vacuum gauge should be
installed in the vacuum line near condenser

Turn vacuum pump ON

Turn LABOROTA 20 control master switch (Power)
OFF
Display II Taste Select
87
Taste Start Stop
E