Question

XY aaa Field instrument format: X = parameter type (see list below) Y = device type (see list below) Aaa = unique identifier, usually a number of 1, 2, 3, or 4 digits Typical parameter types: F = flow T = temperature L = level P = pressure V = vibration A = analysis S = speed X = miscellaneous H = manual operator function Signal transmission symbols: ... 000 4 { Typical device types: E = element I = indicator C = controller CV = control valve V = manual valve ZV = solenoid valve S = switch T = transmitter or tranducer Pneumatic signal - data is conveyed by compressed air pressure; standard range is 0-15 psi for readings of 0 to 100% of value. Analog electronic signal - data is conveved by amperage: standard range is 4-20 mAmps for readings of 0 to 100% of value. Digital electronic signal - data is conveyed by binary character value. Example of a flow control loop: FC 10 FCV 10 FE 10

          XY
aaa
Field instrument format:
X = parameter type (see list below)
Y = device type (see list below)
Aaa = unique identifier, usually a number of 1, 2, 3, or 4 digits
Typical parameter types:
F = flow
T = temperature
L = level
P = pressure
V = vibration
A = analysis
S = speed
X = miscellaneous
H = manual operator function
Signal transmission symbols:
...
000
4
{
Typical device types:
E = element
I = indicator
C = controller
CV = control valve
V = manual valve
ZV = solenoid valve
S = switch
T = transmitter or tranducer
Pneumatic signal - data is conveyed by compressed air pressure;
standard range is 0-15 psi for readings of 0 to 100% of value.
Analog electronic signal - data is conveved by amperage:
standard range is 4-20 mAmps for readings of 0 to 100% of
value.
Digital electronic signal - data is conveyed by binary
character value.
Example of a flow control loop:
FC
10
FCV
10
FE
10

Show more…

XY
aaa
Field instrument format:
X = parameter type (see list below)
Y = device type (see list below)
Aaa = unique identifier, usually a number of 1, 2, 3, or 4 digits
Typical parameter types:
F = flow
T = temperature
L = level
P = pressure
V = vibration
A = analysis
S = speed
X = miscellaneous
H = manual operator function
Signal transmission symbols:
...
000
4

Typical device types:
E = element
I = indicator
C = controller
CV = control valve
V = manual valve
ZV = solenoid valve
S = switch
T = transmitter or tranducer
Pneumatic signal - data is conveyed by compressed air pressure;
standard range is 0-15 psi for readings of 0 to 100% of value.
Analog electronic signal - data is conveved by amperage:
standard range is 4-20 mAmps for readings of 0 to 100% of
value.
Digital electronic signal - data is conveyed by binary
character value.
Example of a flow control loop:
FC
10
FCV
10
FE
10

Added by Wanda W.

Elementary Principles of Chemical Processes

Richard M. Felder, Ronald W. Rousseau,… 4th Edition

Chapter 3

Instant Answer

Solved by Expert Hubert Agamasu

Step 1

The butane stream enters the flash drum at 35°C and 400 bar. We need to measure the temperature and pressure of the incoming stream. So, we can use a temperature transmitter (T) and a pressure transmitter (P) to measure these parameters. The temperature Show more…

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A flash drum is used to reduce the temperature of a butane stream. The butane enters the drum at 35Â°C and 400 bar. Flashed butane vapor leaves the top of the drum, and butane liquid leaves the bottom of the drum. The flash drum operation must be controlled to achieve an outlet temperature of -10Â°C. Prepare a sketch, using the instrument symbology guide below, for the above scenario: Field instrument format: X = parameter type (see list below) Y = device type (see list below) Aaa = unique identifier, usually a number of 1, 2, 3, or 4 digits XY aaa Typical parameter types: F = flow T = temperature L = level P = pressure V = vibration A = analysis S = speed X = miscellaneous H = manual operator function E = element I = indicator C = controller CV = control valve V = manual valve ZV = solenoid valve S = switch T = transmitter or transducer Signal transmission symbols: Pneumatic signal -- data is conveyed by compressed air pressure: standard range is 0 - 15 psi for readings of 0 to 100% of value Analog electronic signal -- data is conveyed by amperage: standard range is 4-20 mAmps for readings of 0 to 100% of value. Digital electronic signal -- data is conveyed by binary character value Example of a flow control loop: FC 10 FCV 10 FE 10

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