Heidolph Hei-VOLUME Distimatic Pro Notice D'instructions page 87

Device description
Device description
Principle of operation
The automatic Hei-VOLUME Distimatic Pro module has been specially developed for use in
combination with rotary evaporators. The automatic module enables the automatic filling and
draining of the system in continuous operation.
The following processes are controlled with the automatic Hei-VOLUME Distimatic Pro
module:
–
Filling the evaporation flask
–
Drainage of distillate
–
Drainage of residue
The following operating modes are available to the user:
– SENSOR MODE
Standard mode for automatic filling and draining in continuous operation (see section
„Sensor mode" on page 120).
– TIME MODE
The time mode is used specifically for processing media that form sticky residues or
that tend to foam (see section „Time mode" on page 130).
RINSE MODE
–
The rinse mode is used to flush the supply lines and drains with a solvent for cleaning
purposes (see section „Rinse mode" on page 135).
– MANUAL MODE
In manual mode, the connected rotary evaporator can be operated for processing small
quantities (see section „Manual mode" on page 139).
In automatic operation (sensor and time mode), the distillate and – depending on the variant
(with or without automatic drainage of residue) – the residue is drained from the collector or the
evaporation flask by applying overpressure. Distillate and residue can also be drained manually
by the push of a button. The required overpressure is generated by a compressor integrated in
the Distimatic Pro.
The evaporation flask is filled from the educt container using the vacuum in the rotary evapo-
rator system. The required vacuum is generated by an external vacuum pump.
A pressure mode valve is used to switch between the compressor (overpressure operation) and
the vacuum pump (underpressure operation).
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