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11 Cards in this Set
- Front
- Back
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What does the positioner do |
Adjust air psi to the actuator to ensure the actuator meets setpoint precisely |
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Level can be controlled by what |
Displacer or float Differential pressure Tape level gauge Radar wave Nuclear |
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Bimetallic strip is found in what type of temperature measuring element |
Thermometer Or temperature gauge |
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Proportional control |
Value |
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Integral or reset |
Control looks at position confirming position |
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Derivative control |
Rate |
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Permissive are |
Special interlocks that must be satisfied before equipment start up |
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Steps of troubleshooting |
1. recognize there is a problem Communicate 2. define problem (what you see) Communicate 3. verify problem is real Communicate 4. determine possible causes 5. narrow it down/ruling stuff out 6. take action stay safe 7. Watch it |
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Which allows try to control automatic or Cascade? |
Cascade |
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Which type of control prevents swings? |
Manual |
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What are permissives |
Special interlock which must be satisfied before equipment started |
