SWP Float Switch - User Manual

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Summary

Technical Data and Specifications

Installation Guide

Installation Steps

Steps for fixing counterweight, electrical connections, and cable length adjustment.

Water-Filling Operation

Water-Filling Operation Explanation

Explains how the pump fills water when the level drops and stops when it rises.

Auto-Filling and Auto-Emptying Operation

Auto-Switch Function

Describes the auto-switch function for filling and emptying water levels.

Counterweight Installation

Counterweight Installation Guide

Instructions for preparing and fixing the counterweight onto the cable.

Safety Warnings

Important Safety Precautions

Crucial warnings regarding cable damage, immersion, insulation, and grounding.

Warranty Information

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

This document describes a float switch, a fluid level controller manufactured by SWP (Scientific World Products). This device is designed for the auto-control and protection of water towers and water pools by connecting to an electrical pump via an electrical cable.

Function Description:

The float switch operates by detecting water levels and activating or deactivating an electrical pump accordingly. It supports two primary modes of operation: water-filling and water-emptying.

For water-filling operations, the device ensures that the electrical pump begins to fill water when the water in the tank drops to a certain level and stops working when the water rises to a predetermined level. This is achieved by connecting the blue cable of the floating control to the electrical pump and the yellow/green (or black) cable to a neutral wire. The brown cable should be kept insulated in this configuration.

For water-emptying operations, the device ensures that the electrical pump stops when the water level in the water pool drops to a certain level and starts emptying water again when the water level increases. In this setup, the brown cable is connected to the water pump, and the yellow/green (or black) cable is connected to a neutral wire. The blue cable should be kept insulated.

The device also supports an auto-switch function (Fig. 7) that combines both filling and emptying functionalities, allowing for automatic switching between the two basic operations based on water level fluctuations.

Important Technical Specifications:

• Rated Voltage: AC 125V/250V
• Max Current: 16(8)A
• Frequency: 50-60Hz
• Protection Grade: IP68
• Max Operating Temperature: 55 °C

Usage Features:

1. Counterweight Installation: A counterweight (provided upon request) can be fixed on the power cable to control the water level. To install, peel the plastic ring off the counterweight, set it around the cable, insert the cable from the conic part into the counterweight, and fix it with moderate pressure at the fixing end. The length of the cable section between the fixation point of the device and the device body determines the water level.
2. Electrical Connection: The electrical cable connects the float switch to the electrical pump and is then fixed inside the water tank.
3. Cable Management: Specific cable connections are required for different operational modes (filling vs. emptying). Unused cables must be correctly insulated to prevent accidents.
4. Water Level Control: The device's position and the counterweight's placement dictate the water levels at which the pump activates or deactivates.

Maintenance Features:

• Cable Integrity: The power supply cable is an integral part of the device. If the cable is found to be damaged, the device must be replaced, as repairs to the cable itself are not possible.
• Immersion Warning: The terminal of the electrical cable must never be immersed in water during installation or operation.
• Grounding: The electrical pump must be grounded to avoid any accidents.
• Warranty: The device comes with a 6-month warranty from the factory delivery date for any defects caused by mal-manufacture. Users can return the device for repair or replacement within this period. This warranty does not cover defects caused by misuse or improper storage.

The manual includes detailed diagrams (Fig. 1-7) illustrating wiring configurations for water-filling, water-emptying, and auto-switching operations, as well as an illustration for counterweight installation (Fig. 8). These diagrams provide visual guidance for proper setup and connection.

SWP Float Switch Specifications