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Disassembly
This procedure should be performed immediately after every test.
1. Lower the heat bath.
2. Allow sample to cool to below 120°F (48.9°C).
3. Gradually decrease the pressure at a rate of 30 - 60 PSI (200 - 400 kPa)
per minute.
4. Slowly open the valve stem at the bottom of the sample cup (see photo
on page 9). This will relieve any remaining pressure from the cup.
Keep a container underneath the valve stem to collect any sample fluid
that leaks.
5. Unscrew the sample cup nut and pull the sample cup straight down. Hold
it directly under the bob to catch any residual fluid that may be dripping.
6. Gently turn the bob counterclockwise to remove it from the bob shaft.
Be very careful to keep the thermocouple straight. A bent
thermocouple will cause inaccurate readings. Pull the bob straight
down slowly.
Expansion Fitting
Thermocouple
7. Unplug the power supply.
8. Open the panel on the right-hand side of the unit cabinet.
9. Inside the cabinet, locate one of the six holes on the rotor tube.