Thermo Scientific 7450, Руководство по эксплуатации и техническому обслуживанию

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Section 6
Specifications
Temperature Uniformity
Temperature uniformity is specified to be less than a standard deviation
of 2°C (up to the ‘freeze’ of the first vial) across a matrix of 10 vials
(1.2/2.0ml size) containing 1.0ml (± 2%) each of distilled H
2
0. The
temperature is to be monitored by type ‘T’ thermocouples placed in the
center of the liquid in each vial with the vials distributed in standard
racks and holders as shown below (separately for each cabinet size).
Please note that there are 5 each vials in the second rack from the top, as
well as the second rack up from the bottom, with the ‘Sample’ vial
placed in the center of the top rack. Also, note that the large cabinet
uses a combination of the small and mid-size rack and holder sets.
Finally, a specific program sequence, listed below, must be run in order
to collect the uniformity data.
Rack and Holder Vial Placement for each size chamber
0.6 cu. ft. 1.2 cu. ft. 1.7 cu. ft.
Models Models Models
7450/7451 7452/7453 7454/7455
7456/7457 7458/7459 7474
7472, 7475 7473, 7476
7007452 CryoMed Freezer 6-1 Thermo Scientific