Thermo Fisher Scientific Alpha COND 2000 (In the process of updating the brand guideline & product image) - Manual (Page 50)

Instruction Manual
αlpha CON 2000
44
11.3 Appendix 3 – Simple explanation on the function of hysteresis
100 120 1880 1900
RELAY OFF
HYSTERESIS BAND
FORWARD DIRECTION
REVERSE DIRECTION
SP1 SP2
RELAY ON
SP1 Set to LO
SP2 Set to HI
µS
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.