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+30°C. What is (a) the range, (b) temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? INSTRUMENTATION AND CONTROL SYSTEMS

+30°C. What is (a) the range, (b) temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? INSTRUMENTATION AND CONTROL SYSTEMS

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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FIGURE 5.49 Problem 10. 16 Time in mins 6. Which one of the outputs could be given by a derivative controller? 8. Which one of the outputs could be given by a proportional plus integral controller? 7. Which one of the outputs could be given by an integral controller? 9. Decide whether each of these statements is True (T) or False (F). With a PID process control system tested at start-up using the ultimate cycle method with the den mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to 10 min with a proportional gain setting of 2. The optimum settings, using the criteria of Ziegler and will be: i. An integral constant of 0.2 min¹ ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (1) F (ii) T D. (i) F (ii) F 10. Decide whether each of these statements is True (T) or False (F). With a PI by 10%, the Ziegler a 1 process control system tested by the process reaction method and the controller output chan response graph obtained was as shown in Figure 5.49. The optimum settings, using the crite and Nichols, will be: ii. Integ i. Proportional gain constant 7.2. Integral constant 0.15 min¹ A. (1) Τ (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 11. Decide whether each of these statements is True (T) or False (F). 20 min with a proportional gain setting of 1.2. The optimum settings, using the criteria of Ziegler and mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be With a PI process control system tested at start-up using the ultimate cycle method with the derivative Nichols, will be: i. An integral constant of 0.06 min¹. ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F INSTRUMENTATION AND CONTROL SYSTEMS PPO C. (i) F (ii) T 12. A control system is designed to control temperatures between -10°C and +30°C. What is (a) the range, (b) D. (i) F (ii) F the span? 13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? FIGURE 15. 16
Transcribed Image Text:FIGURE 5.49 Problem 10. 16 Time in mins 6. Which one of the outputs could be given by a derivative controller? 8. Which one of the outputs could be given by a proportional plus integral controller? 7. Which one of the outputs could be given by an integral controller? 9. Decide whether each of these statements is True (T) or False (F). With a PID process control system tested at start-up using the ultimate cycle method with the den mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to 10 min with a proportional gain setting of 2. The optimum settings, using the criteria of Ziegler and will be: i. An integral constant of 0.2 min¹ ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F C. (1) F (ii) T D. (i) F (ii) F 10. Decide whether each of these statements is True (T) or False (F). With a PI by 10%, the Ziegler a 1 process control system tested by the process reaction method and the controller output chan response graph obtained was as shown in Figure 5.49. The optimum settings, using the crite and Nichols, will be: ii. Integ i. Proportional gain constant 7.2. Integral constant 0.15 min¹ A. (1) Τ (ii) T B. (i) T (ii) F C. (i) F (ii) T D. (i) F (ii) F 11. Decide whether each of these statements is True (T) or False (F). 20 min with a proportional gain setting of 1.2. The optimum settings, using the criteria of Ziegler and mode turned off and the integral mode set to its lowest setting, the period of oscillation was found to be With a PI process control system tested at start-up using the ultimate cycle method with the derivative Nichols, will be: i. An integral constant of 0.06 min¹. ii. A proportional gain setting of 1.2. A. (i) T (ii) T B. (i) T (ii) F INSTRUMENTATION AND CONTROL SYSTEMS PPO C. (i) F (ii) T 12. A control system is designed to control temperatures between -10°C and +30°C. What is (a) the range, (b) D. (i) F (ii) F the span? 13. A temperature control system has a set point of 20°C and the measured value is 18°C. What is (a) the absolute deviation, (b) the percentage deviation? 14. What is the controller gain of a temperature controller with a 80% PB if its input range is 40-90° and its output is 4-20 mA? FIGURE 15. 16
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