Genevac HT-8 & HT-12 Series II Evaporating Systems
Page 30 of
64
04-4541
Issue 1-9 – June 2008
Rotor Speed
Heat-Off Option
Heat Flow
NOTE:
Control Channel Probe
MUST be placed in the swing OR SAMPLE
HOLDER
Sample Detection
Press
ENTER
to display the
Select Rotor Speed
drop down menu.
Use the
UP
and
DOWN
cursor keys to select
High
,
Low
or
Very Low
(optional at order).
High speed applies nominally 500 G and Low speed
nominally 300 G.
Very Low
applies nominally 50 G at a very low rotor
speed.
Selecting the
Dri-Pure
option described later will
over-ride this option and sets
High
.
If nothing is selected, the setting will default to
LOW
speed.
Select either: Elapsed Time, Heat Flow or Sample
Detection.
For Elapsed Time enter value in hours and/or
minutes
Only requires 1 SampleGuard probe.
This MUST be used to control the sample holder or
swing temperature.
Either channel 1 or channel 2 may be used, ensure
that the channel chosen is selected as the control
channel in the run options.
Automatically detects dryness by monitoring the rate
at which the solvent is evaporating.
Low solvent loading or if the lamps are turned off
may cause Heat Flow to fail.
If failure occurs, select one of the other two options.
For very low solvent loading, requiring very little
heat, then the following would be used:
Requires both SampleGuard probes, Channel 1 to
monitor the swing/holder temperature and Channel 2
in the centre well of the sample holder to monitor
sample temperature.
Monitors the temperature difference between the 2
channels.
At the start, they are the same, but as the samples
dry the temperature difference gets smaller.
When the temperature difference reaches the preset
figure (Not user configured), the run is terminated.
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