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3.6.7 UNITY 2 parameter specifications
Parameter Range
Mode Standard 2(3) Stage Thermal Desorption
Tube Conditioning
Split on in standby Yes/No
Ambient temperature carrier gas purge Time settable between 0.0 and 99.9 minutes in
0.1 minute increments
Split on during tube purge Yes/No
Trap in-line during tube purge Yes/No
Elevated temperature purge or stage 1 of primary
(tube) desorption (optional)
35 to 400°C (settable in 1° increments) for 0 to
999.9 minutes (settable in 0.1 minute
increments)
Trap in-line during elevated tube purge Yes/No
Split on during elevated tube purge Yes/No
Primary tube desorption (stage 2 if optional
elevated temp. purge employed)
35 to 400°C (settable in 1° increments) for 0 to
999 minutes (settable in 0.1 minute increments)
Split on during primary (tube) desorption Yes/No
Cold trap focusing temperature -30 to +50°C (settable in 1° increments)
Cold trap (secondary) desorption temperature
minutes
50 to 425°C (settable in 1° increments) for 0 to
99.9 (settable in 1 minute increments)
Cold trap heating rate Max (ballistic heating reaching 100°C/sec during
first critical stages of trap heat) or options
between 1° and 40°C/sec
Split on during secondary (trap) desorption Yes/No
Flow Path Temperature 50 to 225°C
GC Cycle Time 0 to 999.9 minutes
Minimum Carrier Gas Pressure 0.0 to 99.0 psi
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