Allied Telesis 6870 Manual Do Utilizador
Page 4 of 25 SPEX SamplePrep LLC 9.24.07
SECTION 2.0: 6870 FREEZER/MILL SPECIFICATIONS
Type of mill: cryogenic impact mill
Grinding mechanism: steel impactor driven by dual electromagnets
Coolant: liquid nitrogen
Weight (empty, without vial or coolant): approx. 44 lbs. (20 Kg)
Grinding Vials: one 6801 Large Vial, one Mid-Size Vial (6871, 6881, 6885), or one 6753
Microvial set, also one to four Small Vials (6751, 6751/52, 6761, 6771).
Typical Sample Capacity:
Small Vials: actual volume with impactor, approx. 25 ml. Typical sample weights: 2
grams for biological samples, 1 gram for polymers. Effective capacity for a given
sample is determined by trials. Overfilling a vial greatly reduces its efficiency.
6753 Microvial Set: 100 - 500 mg per individual 6753V Microvial, depending on
sample.
Mid-Size Vials have up to 5 times the sample capacity of Small Vials, and Large Vials
about twice the sample capacity of Mid-Size Vials.
Actual performance of any vial/sample combination depends on sample properties,
cooling time, grinding time, desired outcome, etc.
grams for biological samples, 1 gram for polymers. Effective capacity for a given
sample is determined by trials. Overfilling a vial greatly reduces its efficiency.
6753 Microvial Set: 100 - 500 mg per individual 6753V Microvial, depending on
sample.
Mid-Size Vials have up to 5 times the sample capacity of Small Vials, and Large Vials
about twice the sample capacity of Mid-Size Vials.
Actual performance of any vial/sample combination depends on sample properties,
cooling time, grinding time, desired outcome, etc.
Typical liquid nitrogen consumption:
10-15 liters for initial cool-down and filling of the tub.
4-6 liters for each hour of operation
Actual LN consumption can vary.
4-6 liters for each hour of operation
Actual LN consumption can vary.
Electrical specifications: CE Approved, available in 115V 60HZ or 230V 50HZ.
Cord: 115V 60HZ version, 3-prong grounded plug supplied.
230V 50HZ version, 2-prong European plug supplied.
Operator is responsible for supplying alternate line cord/plug if required.
Fuses: Two 5-amp slow-blow fuses in AC Input module.
25-amp slow-blow fuse on driver board
Dimensions: 20½ in. (52 cm) x 21½ in. (55 cm) x 18 in. (46 cm)
CE Compliance and Certification: The 6870 Freezer/Mill has been tested for compliance with CE
Directives for Industrial, Scientific, and Medical Equipment Emission, and Generic Light Industrial
Immunity.
Safety Features:
Lid Interlock prevents mill from running if lid is not latched shut.
Liquid nitrogen sensor shuts down mill if liquid nitrogen level is too low.
Liquid nitrogen sensor shuts down mill if liquid nitrogen level is too low.
NOTE: Liquid nitrogen level should be visually checked during extended runs as well as
before every run. The Freezer/Mill warranty does not cover damage to the coil caused by
operating the mill with little or no liquid nitrogen.
before every run. The Freezer/Mill warranty does not cover damage to the coil caused by
operating the mill with little or no liquid nitrogen.