Fluid Level Controller applying the change in the weight of two sinkers in water and on air. The relay, designed for pumping and drianing, auto-matically controls the water pump unit by cutting-in and cutting-off in hamony with the changes in water level.

Performance and characteristics:
1. Multi-way mounting devise:
a. Relay box is provided with 2 sizes of thrusting adaptor for mounting directly on either 3/4" or 1" pipe thread screw couplings.
b."L" shape bracket as provided is for mounting directly on tank wall either horizontally or vertically.

2. Relay box is perfectly seal-up to protect the switch from dust and moisture, ensuring a lasting performance of switch unit.

3. The solid sinkers maintain steady equilibrium in water to assure precise, switch control.

4. Relay unit is designed for pumping or drianing control use terminal A for pumping and B for Drianing.

Application:
The product it applies it industrial and mining enterprises and civil architecture. And it is the equipment which controls pool, water tower, water box, etc. Automatically. It has the advantage of sensitive response, accurate control, novelty and practicality. So it is the necessary water supply product of factories, hotels flats, buildings, houses and so on high buildings.

Specifications:
Rating: 220V 7.5A AC
Rating: 110V 15A AC
No. of poles: Single pole double-throw
Mechanical life: 1 million snaps
Control range: 0.18 - 5 meters
Tank pressure: 1 atmosphere

Mounting:
1. To mount relay unit horizontally on top of tank, provide a hole large enough for the hanging rope to move freely. When mounting vertically on inside wall of tank, provide enough distance between the wall and the sinkers. Relay unit must be secured firmly in tank.

2. link 2 sinkers with the attached rope. Control range is adjustable between center of the upper sinker and center of the lower sinker according to desired controlling level.