Micromeritics DVVA II 4000, Operator'S Manual

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Specifications DVVA II 4000
1-4 400-42803-01 (Rev B) - July 2017
After analysis is complete, the upper piston drive reverses to release the force on the lower pis-
ton. The lower piston retracts, and then the operator swaps the lower piston tray with a waste
disposal tray. The upper piston then advances downward until the carbon black pellet is expelled
from the chamber and falls into the waste disposal drawer.
Safety interlocks are provided to prevent the analyzer from operating until the safety shield is
lowered over the sample area. The safety shield and interlock system prevent personal exposure
to moving parts on the analyzer.
Specifications
The DVVA II 4000 has been tested to meet the specifications listed below.
Characteristic Specification
Performance
Linear displacement
transducer: Accuracy: 0.1% or better
Resolution: 0.003 cm (0.001 in.) or better
Repeatability: ± 0.1%
Reproducibility: ± 0.2%
Strain gage load cell
transducer: Accuracy: ± 0.25% or better
Resolution: ± 5 kg (10 lbs)
Repeatability: ± 0.25%
Reproducibility: ± 0.5%
For Tread or Carcass Carbon Blacks*:
Repeatability (r) Within-instrument repeatability (r): + 1 % of Void
Void Volume at Geometric Mean Pressure Volume Value
of 50 MPa, 75 MPa or 100 MPa
Reproducibility (R) Between-instrument reproducibility (R), + 2 % of Void
normalized: Void Volume at Geometric Volume Value
Mean Pressure of 50 MPa, 75 MPa, or
100 MPa
*Based upon results obtained from multiple instruments for ASTM Committee D24 on Carbon
Black SRB series 8, utilizing ASTM Practice D4483 for evaluating precision of test results.
Physical
Height: 190 cm (6 ft, 3 in.)
Width: 29 cm (2 ft, 3 in.)
Depth: 79 cm (2 ft, 7 in.)
Weight: 329 kg (725 lbs)