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|  DOE-HDBK-1002-96
APPENDIX A
A.6 Instrumentation and Control
Definition of Terms
Closed-loop control operation
-
controlled variable
Temperature
-
detector
Pressure
-
Density
-
alarm high
Specific gravity
-
alarm low
Interface
-
recorder
-
controller
Process Measurement
-
variable manipulator
Instruments for measuring chemical
-
process (heat exchangers)
Pressure measurement
Two-position control
Temperature measurement
Proportional control
Fluid flow measurement
Record controllers
Level measurement
Function of auto-seal manual switch
Analytical measurements
Operation of auto-seal manual switch
Density
Instruments scales and ranges
Specific gravity
-
direct readout
Voltage
-
percent of range indicators
Current
Instrument identification
Terms
Conductive
-
instrument heel
Acidity
-
zero shift
Alkalinity
Reset action
Viscosity.
Rate action
Process Control
Routines
Automatic control fundamentals
-
marking charts
Manual control fundamentals
-
checks for normal/abnormal
conditions
Motor speed control
-
Open-loop control systems
Closed-loop control systems
Instruments for measuring chemical
Interface location.
A-10
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