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Honeywell Chapter 1. Purchasing & REQUISITIONS Chapter 5. Instrumentation and Control Systems Documentation. Presentation by Clifford T. Johnson, PE, Control Systems Engineer. Today. Specifications. ELC-213. Assignment , Lab & Video. Purchasing & Requisitions
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Honeywell Chapter 1 Purchasing & REQUISITIONS Chapter 5 Instrumentation and Control Systems Documentation Presentation by Clifford T. Johnson, PE, Control Systems Engineer Today Specifications ELC-213
Assignment , Lab & Video Purchasing & Requisitions Honeywell Intro to Process Control Instrument Techs & Engineers DO NOT PURCHASE Today Assignment & Lab ELC-213
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
The Bid Package Bid Assignment & Lab ELC-213
7 Steps of Acquisition Acquisition Assignment & Lab ELC-213
Req. Form RFQ Assignment & Lab ELC-213
Process Control Intro Honeywell ELC-213
Process Heater Control Disturbances Honeywell ELC-213
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. Environmental 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
Manual Feedback control loop Feedback Honeywell ELC-213
Automatic Feedback control loop Feedback Honeywell ELC-213
Feedback control loop Components Feedback Honeywell ELC-213
Open vrs Closed loop control No-Feedback Honeywell ELC-213
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 Subject:Yourlast Name-Subject-AssignmentDate 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
the end End ELC-213