eutech-instruments alpha con 1000 conductivity controllertransmitter ユーザーズマニュアル

68X216802

12.5 Appendix 5 - Simple Explanation on the Function of Hysteresis

The controller relay activates when the set-point is reached. In the reverse direction, it does not de-

activate when the value reaches the set-point. Instead, it continues to be active till the value reaches the

amount set by the Hysteresis band.

SP1 Set to LO

10.0

10.5

100.0 100.5

RELAY OFF

HYSTERESIS BAND

FORWARD DIRECTION

REVERSE DIRECTION

SP1

SP2

RELAY ON

SP2 Set to HI