Q4: are lots of In many industries or plants, there a manual water filling systems are used for water storage as shown, where the feed valve (MV1) is used for the tank filling cycle and the discharge valve (MV2) for the tank emptying cycle. Both will be controlled according to sensors. So when the water level drops below low level, the feed valve will turn on automatically and when the water level reaches high level and is sensed by the high level sensor, the system will wait for 1 minute and then empty automatically. Also when high level is detected, it will turn on Bell for alert purpose. The cycle will stop if the user presses the stop button on the control panel. TLB 1C TLB 2 D MV1 R (25 Marks) Tank START STOP INDICATION Reset Buzzer MV2
Q4: are lots of In many industries or plants, there a manual water filling systems are used for water storage as shown, where the feed valve (MV1) is used for the tank filling cycle and the discharge valve (MV2) for the tank emptying cycle. Both will be controlled according to sensors. So when the water level drops below low level, the feed valve will turn on automatically and when the water level reaches high level and is sensed by the high level sensor, the system will wait for 1 minute and then empty automatically. Also when high level is detected, it will turn on Bell for alert purpose. The cycle will stop if the user presses the stop button on the control panel. TLB 1C TLB 2 D MV1 R (25 Marks) Tank START STOP INDICATION Reset Buzzer MV2
Chapter7: Relays
Section: Chapter Questions
Problem 9SQ: What is optoisolation?
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Question
Transcribed Image Text:Q4:
are
lots of
In many industries or plants, there a
manual water filling systems are used for
water storage as shown, where the feed valve
(MV1) is used for the tank filling cycle and
the discharge valve (MV2) for the tank
emptying cycle. Both will be controlled
according to sensors. So when the water level
drops below low level, the feed valve will
turn on automatically and when the water
level reaches high level and is sensed by the
high level sensor, the system will wait for 1
minute and then empty automatically. Also
when high level is detected, it will turn on
Bell for alert purpose. The cycle will stop if
the user presses the stop button on the control
panel.
TLB 1C
TLB 2 D
MV1
R
(25 Marks)
Tank
START
STOP
INDICATION
Reset
Buzzer
MV2
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