Ametek CHANDLER ENGINEERING Twin UCA 4262, Operating Manual

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2-8 SECTION 2 – OPERATING INSTRUCTIONS
6. To begin the test, the Temperature Controller program must be started by pressing the
EZ1 button on the controller. The output “1” light should begin flashing indicating the
control output to the heater and or pump.
7. The COOLANT switch should be OFF
Note: Turn the coolant control switch to AUTO if an external chiller is used.
Ending the Test
1. Turn the HEATER switch to the OFF position.
2. To end the test, turn the HEATER switch to the OFF position.
3. Turn the Temperature Controller OFF by pressing the Advance button so that the
controller displays CM.1 and pressing the up or down arrow buttons to select OFF.
Note: Always leave the controller in the OFF mode with the HEATER switch turned
OFF when the thermocouple is not installed in the cylinder.
4. Turn the COOLANT switch left or right to the ON position to cool the test cell. Monitor
the test cell temperature using the Temperature Controller. Use the pump to maintain
pressure on the test cell until the cell is cool. 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. Failure to maintain pressure at temperatures above 212°F
(100°C) may cause water in the test cell to become steam.
5. Turn PRESSURE Left/Right valve to the OPEN position (counterclockwise).
6. If no other test is running, turn the MAIN POWER switch to the OFF position.
7. Close the PRESSURE RELEASE valve (clockwise). Failure to do so will result in water
leakage.
8. Remove the Quick Disconnect connector from the test cell.
9. Disconnect the sensor cable.
10. Remove the thermocouple or disconnect the cable.
11. Lift the test cell from the instrument assembly.
Cleaning the Test Cell
When the test cell has been cooled and removed from the instrument, it should be cleaned
according the following guidelines.
1. Place the test cell in a vise, top side up. Use the wrench flats and do not scratch or nick
the cylinder or plugs.
2. Remove the top plug and pour off any standing water on the cement sample.
3. Remove the cell from the vise and then replace the cell in the vise, top side down.