Work With Protective Hood And Protective Shield (Optional, P/N 591.00010.00 And 591.00020.00); Add Substance To Be Distilled; Aerate By Hand; Adjust Hot Bath Temperature - Heidolph LABOROTA 4000eco Betriebsanleitung

20 Work with protective hood and protective shield (optional, P/N 591.00010.00
and 591.00020.00)
If you cannot locate the rotary evaporator behind a glass shield, optional protective hood
(25) and shield (17) offer adequate protection for the user.
The protective hood raises together with the lift, hence giving room for replacing the
evaporator flask (P).
Folding the protective hood up though 90° with its handle (25a) the evaporator flask's
section (P) is accessible. As described in Chapter 12, the protective hood easily adjusts to
fit position of the hot bath, e.g. if the hot bath needs to be displaced.
Do not open protective hood in lower position of lift, if you use hood and
shield together (collision between hood and shield).
21

Add substance to be distilled

Substance to be distilled may be added through feeder tube (M) under vacuum.
Trim inlet tube (S) (ref. fig. 6-8) and immerse end of hose in container with the substance
to be distilled.
Open feed with plug of cock (M) (turn aperture of cock towards nipple). When closing cock
(M) make sure not to turn the plug through more than 90 degrees.
22

Aerate by hand

The cock in feeder tube (M) also allows system aeration by hand. To this end
turn aperture in cock's plug up towards aerating hole (opposite hose liner).
23

Adjust hot bath temperature

Turn hot bath ON with push-button (2a); button lighted green.
Turn power switch (1b, fig. 1) to ON before starting adjusting work.
Select heating bath temperature with rotary knob (2b).
Temperature marks arranged around rotating knob (2b) just are a rough
59
fig. 21
E