Heidolph LABOROTA 20 automatic - Manual (Page 87)

87
E
CONTROL PANEL
13. Master switch / EMERGENCY-CUT-OUT
The Master switch disconnects all wires from power supply, and serves as a RESET button.
(after Emergency CUT-OUT).
The Emergency CUT-OUT discontinues operation of the rotary evaporator immediately.

Stop rotation

Lowers heating bath

Opens aerating valve (vacuum valve closes)

Turns OFF heating circuit

Product feed and condensate discharge is cancelled

Buzzer sounds

Emergency LED turns ON
CAUTION: if entry of ambient air causes unwanted reactions, take adequate action
(inert gas, or keep aerating valve closed).
System re-starts after an Emergency CUT-OUT situation requires system RESET. Make sure the
problem is fixed before resetting. See an expert, if required.
To Reset, turn Master switch OFF & ON.
14. Heating bath lift
Heating bath lift RAISES, as long as the Lift UP
key is held depressed.
Heating bath lift LOWERS, as long as the Lift DOWN
key is held depressed.
At upper and lower limits, lift motion stops automatically.
Water bath only:
The LABOROTA 20 control automatic WB (water bath)
features a fully automatic water refill system with float switch.
Lift UP
Master switch Emergency CUT-OUT
Lift
DOWN
Stop-Mode
Master switch Emergency CUT-OUT
Stop-Mode