The WATER-PASS 2 controller is an electronic device used to control pump operation. It monitors pump operation by detecting changes in water pressure and water flow through the pipeline. Thanks to its user-adjustable switch-on pressure, the device fully replaces traditional pressure switches.
The device also provides dry-run protection (pump operation without water). The built-in check valve prevents water from flowing back into the pump.
WATER-PASS 2 is equipped with a 1 L tank that reduces water hammer. The factory-set switch-on pressure is 1.5 bar.
The intelligent WATER-PASS 2 controller is designed to control the pump by switching the device on and off. It switches on when the water pressure in the installation falls below the switch-on pressure set on the controller and when flow occurs in the pipe where the controller is installed. In practice, the device switches on the pump when a water tap is opened or sprinklers are activated, and switches it off approximately 6 seconds after the tap is closed or the sprinklers are shut off.
The device features dry-run protection (pump operation without water). If there is no water in the device, the controller switches off the pump, preventing damage. The device can be connected directly to pumps whose motors do not draw more than 12 A during operation. For most single-phase motors, motors rated up to 2.2 kW draw less than 12 A.
The device is designed to operate with clean water free of mechanical impurities. The maximum water temperature should be below 80°C.
WATER-PASS 2 is equipped with a 1 L tank; do not install an additional tank.
TECHNICAL DATA:
- Supply voltage: 100–260 V,
- Power supply frequency: 50/60 Hz,
- Max. power of the controlled pump: 2.2 kW,
- Max. current consumption of the controlled pump: 12 A,
- Max. operating pressure: 15 bar,
- Max. ambient temperature: 40°C,
- Max. liquid temperature: 80°C,
- Protection rating: IP65
- Switch-on pressure range: 0–10 bar,
- Operating position: Vertical,
- WATER-PASS 2S – tank capacity: 1 L,
- Printed circuit board protection: epoxy resin,
- Dry-run protection: 8 sec.
