Endress+Hauser Prosonic S FMU90 - Switch on Point; Upper Switching Point; Lower Switching Point; Hysteresis

The "relays/controls" menu
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L00-FMU90xxx-19-00-hfsdjhfjkdfkfhkf00-yy-062
1: "inband" limit relay; 2: "out of band" limit relay
A: upper switching point; B: lower switching point; C: relay energized; D: relay de-energized; E: hysteresis
"switch on point" and "switch off point"
(for the "standard" limit type)
Define the switching points in these parameters.
They have the same unit as the measured value.
"
Caution!
After a change of the "unit level" or "flow unit" the switching points have to be checked and adjusted
if required.
"switch on /min" and "switch off /min"
(for the "tendency/speed" limit type)
Define the switching points in these parameters.
Their unit is the measured value unit per minute.
"
Caution!
After a change of the "unit level" or "flow unit" the switching points have to be checked and adjusted
if required.
"upper switching point" and "lower switching point"
(for the "inband" and "out of band" limit types)
Define the switching points in these parameters.
They have the same unit as the measured value.
"
Caution!
After a change of the "unit level" or "flow unit" the switching points have to be checked and adjusted
if required.
"hysteresis"
(for the "inband" and "out of band" limit types)
Define the hysteresis in this parameter. It has the same unit as the measured value.
The hysteresis affects the upper and the lower swtiching point.
m, ft, m /h, ft /s, °C, m/min, ft/min, …
3 3
t
t
A
B
C
D
E
E
m, ft, m /h, ft /s, °C, m/min, ft/min, …
3 3
t
t
A
B
C
D
E
E
1
2