Omega FSW-50 - Manuals

Relay Switch: SPDT 15A @ 125 or 250 Vac, 10,000,000operations median Nominal Sensitivity(% Flow Change to Activate Switch): Approximately 10% @ upper end ofrange; approximately 30% @ lower end ofrange Differential PressureDrop Across Unit: (Under normal operating conditions)1"-3" pipe, less ...

4 9 ASSEMBLY WARNING THE FSW-50 SERIES SWITCHES EMPLOY AN EXTERNAL SEAL SHAFT (A) A FLEXIBLE ELASTOMER DIAPHRAGM SEAL (B) AND AN INTERNAL FEED THRU SHAFT OR SWITCH ACTUATING ARM (D). ALL THREE ELEMENTS ARE ASSEMBLED AND LOCKED IN PLACE WITH LOCTITE ADHESIVE. TO PREVENT RUPTURE OF SEAL AND LEAKAGE IN...

8 5 Plumber’s tools such as pipe wrenches are not recommended. If possible, use a ‘Rigid’ type wrench where the smooth jaws closely fit the hexagon section. NOTE Thus: 1. Teflon tape thread and tighten the plastic bushing into the pipe or tank fitting. 2. Teflon tape thread and tighten the switch in...

6 7 All FSW-50 Series Switches are factory set at the lower end of the flow range, i.e., the adjusting screw is set at the low flow COUNTERCLOCKWISE position. NOTE Figur e 2: Wiring Schematic for power applied to load when the flow is greater than set point (power to load interrupted when flow decre...