Heidolph LABOROTA 20 compact and safety - Manual (Page 72)

72
E

Locate evaporator flask on flask lift support tubes (15), tilt flask neck towards drive head, center
connecting flange in drive head, so that connecting flange rests against PTFE-O-ring (5)
located in PTFE-adapter (4).
Screw large-size ring (1) tight. When evacuating, double-check for firm seat

Return flask lift support tubes to initial position (16), CAUTION: basic position uses electronic
monitor circuit. Leaving this position will freeze all electric functions of the LABOROTA 20
control. This situation is reported by an LED on the control panel (flask support).
6. Install condensers and expansion
vessel

Loosen thumbscrew (2), lift bracket (1)
completely and secure with
thumbscrew (2)

Place rubber side of washer (3) on
lower bracket (4), line up holes. Put
one more washer (3) with rubber side
pointing up on upper neck of condenser
or expansion vessel (5)

Plug lower neck of condenser or
expansion vessel (5) through cutout in
bracket (4) and washer (3), and tilt to
an upright position

Loosen thumbscrew (2) and slide
bracket (1) over upper neck of
condenser or expansion vessel. Make
vertical adjustment with bracket (4)

Rotate thumbscrew (2) tight when
condenser or expansion vessel are in
an exactly upright position.
3
1
5
2
4
3
6
3