A liquid level controller linearly converts a displacement of 2 m to 3 m into a 4 - 20 mA control signal. A relay serves as a two-position controller to open and close an inlet valve. The relay closes at 12 mA and opens at 10 mA. The hysteresis zone is

A liquid level controller linearly converts a displacement of 2 m to 3

1.	A liquid level controller linearly converts a displacement of 2 m to 3 m into a 4 - 20 mA control signal. A relay serves as a two-position controller to open and close an inlet valve. The relay closes at 12 mA and opens at 10 mA. The hysteresis zone is
A.	0.1 m
B.	0.125 m
C.	0.15 m
D.	0.2 m
Answer» C. 0.15 m

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A liquid level controller linearly converts a displacement of 2 m to 3 m into a 4 - 20 mA control signal. A relay serves as a two-position controller to open and close an inlet valve. The relay closes at 12 mA and opens at 10 mA. The hysteresis zone is

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