Information About Distillation Settings - Heidolph VV Micro Mode D'emploi

star grip (5), move the drive up or down accordinqly and retighten with the star
grip.
Use switch (18) to turn on the bath heater (the pilot lamp lights up). You can
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select the bath temperature with knob (20).Caution: Risk of scalding when
using the heating bath!
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For reasons of safety, hot bath temperature is monitored by a temperature
limiter. If temperature control fails, the temperature limiter permanently
disconnects heater.
This temperature limiter is located on the underside of the heating bath.
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Disconnect status is displayed by a red protruding button. The unit must be
opened. To reset temperature limiter just depress red button after some time for
chilling off.
The temperature limiter having dropped, is an indication to have the hot
bath inspected by a service engineer authorized by Heidolph.
When you are sure that the knob (19) is set to 0 (turn counterclockwise as far as
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the stop), use the switch (17) to turn on the flask
rotation (the Pilot lamp lights up). Then you can
use the knob (19) to set the required speed.
You can add solvent to the evaporation flask
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when the system is under vacuum. To do so,
connect the inlet tube (K) to a length of tubing
(dia 6 mm) and place the end of the tubing in the
solvent container. Use the valve (K1) to regulate
the required amount of solvent.
You can switch over the VV Micro from reflux
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distillation to normal distillation while it is in
operation. Important: Fit a large enough
collection flask before beginning with the distillation. To switch over, release
the locking knob (14), pull out the fastening knob (13) and swivel the condenser
through 180° until the fastening knob (13) latches home. Re-tighten the locking
knob (14).
When the distillation is over, lift the evaporation flask out of the bath by undoing
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the star grip (4 and/or 5) and moving the drive unit.
Before you use the appliance in the laboratory for the first time, please check
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that its switches, knobs, drive etc. are in working order.

INFORMATION ABOUT DISTILLATION SETTINGS

Using a rotary evaporator for thermal cracking of substances some basic consideration
should be made to achieve the best results possible. Optimize settings as described
below:
20
25
18 17
E
19