Instrumentation Flashcards
What are the most common process parameters measured in the process plant
1.Heat exchangers
2. Distillation columns
3. Reactors
What are the common types of media used in transmission
- Pneumatic
- Electronic
- Optical
What is a transmitter
A transmitter is a device that coverts a reading from a sensor into a standard signal and transmits that signal
What are the three basic manometers
- U-tube
- Well manometer
- Inclined manometer
What is an open loop
An open loop does not respond to feedback and has a manual controller
What is the pressure detector functions
- Indication
- Alarm
- Control
What are the standards for electronic, pneumatic, pneumatic
4-20 mA
3-15 psig
20-100 kPa
What is a transducer
A transducer are use to convert the output of a senor into a signal that a controller can use
What is the main criteria for process instrumentation
- Safety
- Production
- Environmental Standards
What is I.C.R.A.M
Indicate
Control
Record
Alarm
Measurement
What is are 6 process control
- Pressure
- Level
- Temperature
- Flow
- Composition
- Density
How do u calculate pressure
P= Force/Area or P= F/A
What are the types of standard pressure gauges
- Bellows
- Bourbon tubes
- Metallic diaphragms
- Capsules
What is the main components of a control loop
- Process
- Measurement
- Control
- Final control Element
What is an closed loop
A closed loop responds to feedback and has an automatic controller
