What are the differences between the XT10 and XT15 instruments?

The XT10 and XT15 look very similar and have much in common.  

Similarities:

1. High temperature, high pressure Soxhlet-like extractions on up to 15 samples at a time. 

2. The extraction time is one hour for the vast majority of samples. 

3. Same foot print. 

4. Both instruments recycles solvent (to various degrees). 

5. Both require water source, drain, and electrical supply. 

Differences: 

1. Solvent Addition and Recovery: The XT15 has an internal solvent reservoir, therefore the technician only fills the reservoir prior to running the instrument for the first time. The instrument automatically delivers solvent into the extraction chamber during the run. When the run is complete the instrument has recovered ~97% of the solvent back into the internal solvent reservoir, ready to be automatically delivered in the next run. The XT10 does not have an internal solvent reservoir, therefore the technician must pour solvent directly into the extraction chamber at the start of every run. This instrument also recovers the solvent at ~90%.  However, recovered solvent is captured in an external reservoir that the user must remove to reuse solvent in the next run. Since the user must manually pour solvent directly into the extraction chamber at the beginning of each run, the instrument requires a cool down time between extraction runs.

2. Throughput: The XT15 has a throughput of 150 samples/day. The combination of cool down times and manual solvent additions result in the XT10 having a throughput of 100 samples/day.