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Cement Curing Autoclave User Manual
100072577
Revision H
42
5.8.2.4
Continue to press until you have reviewed or
changed the desired program values and return to the
’ProG LiSt’
display.
5.8.2.5
Press the Run/Hold button.
5.8.3
Turn the heater control switch to the on position.
5.8.4
Observe the temperature controller for flashing of the OP1 indicator
and the temperature increasing. The temperature controller will
continually turn on and off the heater until the slurry thermocouple
reaches the desired temperature.
5.8.5
Frequently monitor the chamber pressure gauge as the slurry curing
progresses. As the water inside heats up, it will expand and increase the
pressure. Reduce the pressure by slowly opening the needle valve so the
maximum pressure specified in API RP 10B is not exceeded. The
automatic relief valve will bleed off potentially hazardous pressure (if it is
properly adjusted).
Hot water and/or steam may be violently expelled when the
needle valve is opened. Keep all body parts clear of the valve
outlet when it is being opened.
Figure 5-22
Initial pressure (left), increased pressure from temperature rise (right)