Model 520 HT UCA
D01157216
Revision A, October 2015
29
1.
Press the STOP TEST button to manually stop a test.
WARNING!
Failure to maintain pressure at temperatures above
212°F (100°C) may cause water in the test cell to vaporize into
steam. Use the pump to maintain pressure on the test cell until
the cell is cool.
2.
Press the COOLING WATER button to cool the test cell. When the
temperature is below 200°F (93°C) the PUMP switch may be turned to the
OFF position and the PRESSURE RELEASE valve opened.
3.
Turn WATER SUPPLY switch to its OFF position
4.
To shut-down instrument, press EXIT and confirm. Next, press the
Windows
®
Start button on bottom left of screen and Shut-down computer
properly.
5.
Turn POWER switch to its OFF position.
6.
Close the PRESSURE RELEASE valve (clockwise). Failure to do so will
result in water leakage if cooling water is circulating when the U-tube or
thermocouple are loosened.
7.
Remove the U-shaped high pressure tubing connecting the test cylinder to
the bulkhead fitting on the top of the instrument.
8.
Disconnect the transducer cable.
9.
Disconnect the thermocouple cable.
Before touching the test cell wait until the surface has cooled to
below 120°F.
10.
Lift the test cell from the instrument.
The test cylinder is now ready to be cleaned. Cleanup should be done as soon after
completion of a test as possible when the sample is easiest to remove.
