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1. Turn off the “Heat”, “Pump”, and “15 VDC” switches and turn on the “Cool”
switch. Make sure the water supply is turned on.
To turn off the pump, set the “Pump” switch to the middle position.
2. Stop the test:
a. If you are running a test with the computer, click the “Stop” button on
the main screen.
b. If you are not using the computer, press and hold the “RUN/HOLD”
button on the temperature and pressure controller until the “RUN”
light goes off. Then immediately set the temperature and pressure
channels to manual mode. Refer to page 11 for instructions.
The temperature and pressure channels must be set to manual
mode as soon as possible after starting a test. This will prevent
the controller from venting pressure before the cell has cooled.
3. As the test cell cools, watch the pressure carefully. As long as the
temperature is over 180°F (82.2°C), make sure the pressure is at least
1,000 PSI (6,900 kPa).
4. Once the test cell has cooled, turn off the“Cool” and “Motor” switches.
5. Open the Pressure Release valve (counter-clockwise) all the way.
Always release the pressure very slowly to prevent damage to the
equipment.
6. Slowly turn the “Fill Cell” valve to “Vent”.
7. Open the “Air To Cylinder” valve (counter-clockwise). Air pressure will
force the oil back into the reservoir. You will hear a hissing sound as air is
released. When the hissing sound stops, close the valve (clockwise).
8. Carefully unscrew and remove the thermocouple.
Keep a rag or paper towel handy in case extra oil leaks from the cell.
9. Unscrew and remove the cell cap. Remove the potentiometer and slurry
cup.
10. Return the cell cap to the test cell to prevent dust and other material from
entering the cell. Close all valves and turn off all switches.
Operation
Completing the Test