The devices function via the principle of a spring-supported paddle, and the magnetic triggering of a reed switch.
Détails in the table correspond to horizontal inwards flow with decreasing flow rate.
UR2 (Plastic switching unit) is adjusted in the factory; please specify switching value.
Handling and opération
Note
• Include straight calming section of 5 x DN in inlet and outlet
• Include a filter if the media are dirty (use magnetic filter for ferritic components).
• It must be ensured that the values given for voltage, current, and power are not exceeded.
• When switched on, a load must be connected in sériés.
• The electrical détails apply to ohmic loads. Capacitive, inductive and lamp loads must be operated using a protective circuit.
Adjustment
UR1 - loosen bolts, push the switching current tube into the desired position.
Retighten the bolts.
Normally closed (n.c.) or normally open (n.o.) as per table "Technical data"
Options
• Switching ranges for oil or gas
• Spécial values
• Soldered copper fitting
• Adhesive PVC fitting
Ordering information
• Specify direction of flow, medium, and switching range, UR1 or switching value UR2.
• For UR2 specify normally closed (n.c.) or normally open (n.o.).
• For oils, state viscosity, température and désignation (e.g. ISO VG 68) (enquire about range).
• For gases, state pressure (relative or absolute), température and medium (e.g. air) (enquire about range).