14
4. OPERATION PROCEDURES
Main Operation
8. Check vacuum gauge
Confirm by looking at the vacuum gauge, that vacuum
chamber has sufficiently decompressed. (10Pa-20Pa)
9. Install sample container and open
valve
Install the pre-frozen sample container on the vacuum
valve, turn the valve knob so that
“VAC” is in the top
position, opening the chamber side path.
Sample container is decompressed and drying process
begins.
10. Install the next container
When a vacuum valve is set from
“VENT” to “VAC”, the
chamber interior is pressurized. To process multiple
samples, wait (approx. 3-4 min.) until the pressure has
returned before turning the next vacuum valve from
“VENT” to “VAC”.
If
multiple
samples
are
processed
at
one
time,
decompression will decrease and pre-frozen samples will
begin melting.
11. End process
Process may be ended after confirming sample status and
making sure process has finished normally.
"VAC"
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