The WATER-PASS controller is an electronic device designed to control pump operation. The device monitors pump operation by detecting changes in water pressure in the pipeline and the flow of water through the pipeline. Thanks to the user-adjustable switch-on pressure, the device fully replaces traditional pressure switches.
The device also protects against dry running (pump operation without water). The built-in check valve prevents water from flowing back into the pump.
The intelligent WATER-PASS controller is designed to control a pump by switching the device on and off. It switches on when the water pressure in the water system falls below the switch-on pressure set on the controller and flow is detected in the pipe where the controller is installed. In practice, the device switches the pump on 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 (protection against pump operation without water). If there is no water in the system, the controller switches off the pump, preventing damage. The device can be connected directly to pumps whose motors draw no 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 for use with clean water free of mechanical impurities. The maximum water temperature should be below 80°C.
To increase the system’s operational flexibility, a small diaphragm tank can be installed with the WATER-PASS model.
TECHNICAL DATA:
- Supply voltage: 100-260 V,
- Supply frequency: 50/60 Hz,
- Maximum controlled pump power: 2.2 kW,
- Maximum controlled pump current: 12 A,
- Maximum operating pressure: 15 bar,
- Maximum ambient temperature: 40°C,
- Maximum liquid temperature: 80°C,
- Protection rating: IP65,
- Switch-on pressure range: 0-10 bar,
- Operating position: Vertical,
- Printed circuit board protection: epoxy resin,
- Dry-run protection: 8 sec.
