AR 2000 Operator’s Manual
93
Installing and Using the Pressure Cell
The AR-G2 and AR2000/ex Pressure Cell is shipped with the Rotor installed in the pressure cell cup, and the
high-pressure piping manifold fully assembled. Installing the AR Pressure Cell from it's initial shipped
configuration requires some disassembly. Disassembly instructions are as follows:
• Step 1: Unpack the preassembled pressure cell cup and rotor. Using the spanner (Tommy bar) provided,
remove the rotor assembly from the pressure cell cup, and carefully place the rotor in a safe location. Remove
foam packing material from Cup.
NOTE: All the compression fittings that are used on the manifold assembly have a specific
tightening procedure for the first time the nut is tightened on the tubing during the manufacturing
process. Subsequent disassembly and remake of any fitting should be done by first putting a
reference mark on the nut and the body of the fitting before loosening the fitting. After
reassembly of the fitting to a finger tight condition, the nut should then be tightened with a
wrench so that the mark on the nut aligns with the mark on the body of the fitting. A second
wrench should be used to hold the body of the fitting in place while turning the nut.
• Step 2: Unpack the preassembled piping manifold assembly. Using a wrench, remove the furthest extending
angled pipe from the Tee fitting joining the gas inlet and pressure gauge.
Figure 8.10 below shows the disassembled configuration.
The steps on the next several page provide the instructions needed to install and use the pressure cell.
Pressure Cell Cup
Rotor Assembly
Tommy Bar
Angled Pipe
Manifold Assembly
with Gauge
Figure 8.10
Entire Pressure Cell Configuration Disassembled
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