20
WIKA operating instructions flow switch, model FSD-3
EN
14153887.01 09/2016 EN/DE/FR
5. Commissioning, operation
5.6 Adjustment
1.
Depressurise the system and switch off the flow.
2
.
Mount the flow switch and connect it electrically.
(→ refer to chapter 5.1 “Mechanical mounting” and 5.2 “Electrical mounting”)
3.
Recall menu item “SETF” ▶ “MIN” and confirm “0”.
4.
Set the maximum flow in the system.
Observe measuring ranges (→ see chapter 9 “Specifications”).
5.
Recall menu item “SETF” ▶ “MAX” and confirm “100”.
5.7 Switching functions
Hysteresis function
If the flow rate fluctuates around the set point, the hysteresis keeps the
switching status of the outputs stable. With increasing flow rate, the output
switches when reaching the switch point (SP).
■
Contact normally open (HNO): Active
■
Contact normally closed (HNC): Inactive
With the flow rate falling again, the output will not switch back before the
reset point (RP) is reached.
■
Contact normally open (HNO): Inactive
■
Contact normally closed (HNC): Active
Fig.: Hysteresis function
Summary of Contents for FSD-3
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Page 74: ...74 WIKA Betriebsanleitung Str mungsschalter Typ FSD 3 DE 14153887 01 09 2016 EN DE FR...
Page 110: ...110 WIKA mode d emploi pour le capteur de d bit type FSD 3 FR 14153887 01 09 2016 EN DE FR...
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