INST 262 (DCS and Fieldbus), section 2 Lab Automatically ...

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Question 53 Question 54 Question 55 Question 56 Question 57 Question 58 Question 59 Question 60 44
Question 61 Suppose an electronic pressure transmitter has an input range of 0 to 100 PSI and an output range of 4 to 20 mA. When subjected to a 5-step up-and-down “As-Found” calibration test, it responds as such: Applied pressure Output signal (PSI) (mA) 0 3.5 25 7.5 50 11.5 75 15.5 100 19.5 Sketch this instrument’s ideal transfer function on the graph below, along with its actual transfer function graph based on the measured values recorded above. Then, determine what kind of calibration error it has (zero shift, span shift, and/or linearity): Output (mA) 20 16 12 8 4 0 0 Input (PSI) Finally, identify how this calibration error might be corrected. What steps or procedures would you follow to rectify this problem? Suggestions for Socratic discussion 25 • How might the other two calibration errors appear when graphed? • Which constant in the y = mx + b linear equation represents zero, and which represents span? • Describe how a computer spreadsheet program (e.g. Microsoft Excel) might be a useful tool in graphing this instrument’s response. file i00081 45 50 75 100
Page 1 and 2: Lab INST 262 (DCS and Fieldbus), se
Page 3 and 4: STUDENT PERFORMANCE OBJECTIVES: •
Page 5 and 6: EVALUATION AND GRADING STANDARDS: (
Page 7 and 8: Summer quarter INST 230 -- 3 cr Mot
Page 9 and 10: General student expectations Your f
Page 11 and 12: General tool and supply list Wrench
Page 13 and 14: Lab In the lab portion of each cour
Page 15 and 16: General advice for successful learn
Page 17 and 18: • Metric prefixes • Yotta = 10
Page 19 and 20: Physical constants Speed of light i
Page 21 and 22: Question 1 Questions The following
Page 23 and 24: • For those who have studied thre
Page 25 and 26: Suggestions for Socratic discussion
Page 27 and 28: Question 7 Examine this page of pro
Page 29 and 30: Question 9 Identify the effects of
Page 31 and 32: Question 11 Digital single-loop pro
Page 33 and 34: Question 25 Read the “An Analogy
Page 35 and 36: Next, build a resistor network usin
Page 37 and 38: Question 29 An important part of pe
Page 39 and 40: Question 43 Identify the types of i
Page 41 and 42: Question 45 Read Fluke’s Transmit
Page 43: Your assignment - at minimum - is t
Page 47 and 48: Question 63 In this process, two ch
Page 49 and 50: Question 65 This single-loop contro
Page 51 and 52: Suggestions for Socratic discussion
Page 53 and 54: Question 68 Large electric power di
Page 55 and 56: Question 69 This control system mea
Page 57 and 58: Question 71 Question 72 Question 73
Page 59 and 60: Question 83 This pressure-control s
Page 61 and 62: Question 85 Suppose a voltmeter reg
Page 63 and 64: Question 87 A digital pressure tran
Page 65 and 66: Question 89 Shown here is a pair of
Page 67 and 68: Question 91 Lab Exercise Your task
Page 69 and 70: Water level control Fountain-style
Page 71 and 72: Lab Exercise - selecting components
Page 73 and 74: Lab Exercise - documenting the syst
Page 75 and 76: A crude closed-loop PID tuning proc
Page 77 and 78: Lab questions - (reviewed between i
Page 79 and 80: 79 Loop Diagram: Revised by: Date:
Page 81 and 82: 81 Loop Diagram: Furnace temperatur
Page 83 and 84: 83 file i00654 Loop Diagram: Sludge
Page 85 and 86: Answer 1 Answer 2 Partial answers:
Page 87 and 88: Answer 28 Answer 29 • Pressure ga
Page 89 and 90: Answer 32 Answer 33 Answer 34 Answe
Page 91 and 92: A span error would look something l
Page 93 and 94: Answer 71 Answer 72 Answer 73 Answe

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