Heidolph LABOROTA 20 compact and safety - Manual (Page 82)

82
E
WORKING WITH THE LABOROTA 20 CONTROL
Use rotary evaporators with appropriate care. Comply with standard laboratory safety practices.
Be cautious when working with flammable solvents; motors and limit switches are of non-sparking
type but we cannot guarantee that the unit is explosion-proof.
SAFETY INFORMATION:
WHEN CONNECTING YOUR UNIT WITH YOUR LOCAL POWER SUPPLY, PLEASE
MAKE SURE YOUR UNIT IS DESIGNED FOR YOUR LOCAL SUPPLY VOLTAGE; GO
BY DATA PLATE ON THE UNIT.
CONNECT YOUR ROTARY EVAPORATOR WITH A GROUNDED OUTLET ONLY.
CONTROL PANEL
9. 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

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-start 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.
Master switch Emergency CUT-OUT