AR 2000 Operator's Manual
71
4. Connect the black insulated tube between the lower (vertical) outlet of the vortex air cooler and the Swagelok
fitting on the UHP inlet, and insulate the exposed metal connections.
5. Cut 800 mm of the white 6-mm O.D. tubing. Connect this tubing between the Upper Heated Plate outlet and
the lower bulkhead fitting on the vortex air cooler bracket.
6. Cut 150 mm of white 6-mm O.D. tubing and connect one end to the upper bulkhead fitting on the vortex air
cooler bracket. The other end is left open to vent to the atmosphere.
7. Connect white 6-mm O.D. tubing between the outlet of the two-way valve and the middle (horizontal) inlet
of the vortex air cooler.
8. Connect the opposite end of the white 6-mm O.D. tubing used in step 7 to a source of dry compressed air (80
to 100 psi, –30°C dew point or better). An 8-mm "Y"-piece and 8-mm to 6-mm reducer are supplied to break
into the rheometer air line before the filter regulator.
9. Connect the event socket on the valve bracket to the EVENT B socket on the rear of the AR 2000 rheometer
using the cable provided.
Table 7.1
Minimum Temperature Maximum Temperature
Vortex Air Cooler –5 °C 150 °C
NOTE: If you find a reduction in the expected cooling performance, check that there is exhaust
air flowing from the white 8-mm O.D. tubing. If there is limited or no air flow, this is an indication
that the cold end of the vortex tube is blocked with ice, formed by condensing moisture in the
air supply. The tube can be taken apart and ice removed, but the only long-term solution is to
supply drier air.
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