3. An ON-OFF temperature controller controls a room air conditioner. The bandwidth (OH) is set to 4, and the desired room temperature, Set Value (SV) is 25°C. At what temperature will the aircon switch ON and switch OFF?

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Please answer number 3
1. A PT100 RTD has a positive temperature coefficient (a) of 0.00392 0/°C. It is being used to monitor the
temperature in a room. If the present resistance reading of the RTD is 115 02. What is the room
temperature? Hint: R = Ro (1+q AT)
2. A differential pressure transmitter's output is a 4-20mA signal. If the input is set to measure liquid level
in a tank at 0-15 meters, what is the Liquid level when the transmitter's output is 13mA?
3. An ON-OFF temperature controller controls a room air conditioner. The bandwidth (OH) is set to 4, and
the desired room temperature, Set Value (SV) is 25°C. At what temperature will the aircon switch ON
and switch OFF?
Transcribed Image Text:1. A PT100 RTD has a positive temperature coefficient (a) of 0.00392 0/°C. It is being used to monitor the temperature in a room. If the present resistance reading of the RTD is 115 02. What is the room temperature? Hint: R = Ro (1+q AT) 2. A differential pressure transmitter's output is a 4-20mA signal. If the input is set to measure liquid level in a tank at 0-15 meters, what is the Liquid level when the transmitter's output is 13mA? 3. An ON-OFF temperature controller controls a room air conditioner. The bandwidth (OH) is set to 4, and the desired room temperature, Set Value (SV) is 25°C. At what temperature will the aircon switch ON and switch OFF?
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