13 Operation
13.2 Switching and switch-back characteristics
Temperature T
SP
Hyste-
resis
(SP-rP)
rP
Ou make contact
Hno
1
0
Ou make contact
Hnc
1
0
Fig. 2: Switching and switch-back characteristics for the hys-
teresis function in the temperature-time diagram
Temperature T
SP
Hysteresis
(SP-rP)
rP
Ou make contact
Hno
1
dS
dS
dR
0
Ou break contact
Hnc
1
0
Fig. 3: Switching and switch-back delay for the hysteresis
function in the temperature-time diagram
Temperature T
FH
Temperature
window
FL
Time t
Ou make contact
Fno
1
0
Ou break contact
Fnc
1
0
Time t
Fig. 4: Switching and switch-back characteristics for the win-
dow function in the temperature-time diagram
GEMÜ 3240
Time t
Time t
Time t
Time t
Time t
Time t
14 / 28
www.gemu-group.com