Honeywell Chapter 1

1
Honeywell Chapter 1
Purchasing REQUISITIONS Chapter 5
Instrumentation and Control Systems Documentation
Presentation by Clifford T. Johnson, PE, Control
Systems Engineer
Specifications
ELC-213
Today
2
Assignment , Lab Video
Purchasing Requisitions Honeywell Intro to
Process Control
Instrument Techs Engineers DO NOT PURCHASE
Today
Assignment Lab
ELC-213
3
Lab Fill out a RFQ Form
Create in a spread sheet or word document a
Purchase Requisition form for a Level
Transmitter, then fill it out properly and email
to me. You can also use one that you find on the
web, BUT, you must be able to fill it out
properly and email it to me
The form must include a Actual firm that you can
purchase a the level transmitter from
It also must include your name and date of
assignment
RFQ
Assignment Lab
ELC-213
4
The Bid Package
Bid
Assignment Lab
ELC-213
5
7 Steps of Acquisition
Acquisition
Assignment Lab
ELC-213
6
Req. Form
RFQ
Assignment Lab
ELC-213
7
Process Control
Intro
Honeywell
ELC-213
8
Process Heater Control
Disturbances
Honeywell
ELC-213
9
Control Disturbances
Disturbance Definition Change in Setpoint The
setpoint is the desired value of the measured
variable. Its value establishes the level of
energy flow in steady state conditions. Any
change in its setting will require a completely
new energy picture. For instance, a higher
temperature for the product out will require the
control system to provide a higher rate of fuel
flow. Change in Supply This is a variation in any
of the energy inputs to the process. A variation
in the supply pressure of the fuel, for instance,
or a variation in the temperature of the raw
materials, would be supply changes. Change in
Demand This is a disturbance in the output flow
of energy. The most common source of such a
disturbance is a change in the production rate
itself. If the front office asks for more output
and the production rate is increased, the energy
would certainly have to be increased. Environmenta
l Changes Ambient temperature or atmospheric
pressure also affect the energy balance. If the
equipment is outdoors, the wind velocity and
direction may also play a part in altering these
energy requirements.
Disturbances
Assignment Lab
ELC-213
10
Manual Feedback control loop
Feedback
Honeywell
ELC-213
11
Automatic Feedback control loop
Feedback
Honeywell
ELC-213
12
Feedback control loop Components
Feedback
Honeywell
ELC-213
13
Open vrs Closed loop control
No-Feedback
Honeywell
ELC-213
14
Homework ASSIGNMENT Web Link
Find a Purchase Requisition form on the web for
an industrial device and email the link to me
All Emails Subjects and File names must have
SubjectYour last Name-Subject-Assignment Date
Email subject Ex Johnson-Requisition-AD
File name Ex Johnson-RFQ-AD.xls
You will lose 1-3 points for incorrect subject
subjects
Assignment
ELC-213
15
the end
ELC-213
End