Precision Digital PD540 - Manual (Page 29)

50
Output
COOL
OH
(90%)
OL
(80%)
100
50
0 50 100
0 0
100
OL-LIMIT
(-5%)
OH-LIMIT
(100%)
HEAT
P/Pc = 4/5
COOL
OL
(90%)
100
50
0 50 100
0 0
50
100
OL-LIMIT
(-5%)
OH-LIMIT
(100%)
OUTPUT
HEAT
HYS
Fig 6: Heating and Cooling Outputs Using PID Control
Fig 7: Heating On/OFF and Cooling PID Outputs
Dead Band
(1.DB at 20%)
Dead Band
(1.DB at 20%)
PD540 Series Nova Digital Process and Temperature Controller Instruction Manual
29