1. Introduction
This manual provides instructions for the installation, operation, and maintenance of your KAOLALI Fuel Level Sensor and Gauge. This product is designed for accurate fuel and water level monitoring in various vehicles, including boats, RVs, yachts, and trucks.
2. Safety Information
- Always disconnect the vehicle's battery before installation to prevent electrical hazards.
- Ensure all connections are secure and properly insulated to prevent short circuits.
- Do not modify the product. Unauthorized modifications may void the warranty and pose safety risks.
- Consult a qualified professional if you are unsure about any installation steps.
3. Product Components
The package includes the following items:
- 1 x Fuel/Water Level Sensor
- 1 x Fuel Gauge
- 1 x Gasket
- 5 x M5*16 Screws
- 1 x User Manual
Image: Included components of the KAOLALI Fuel Level Sensor and Gauge kit.
4. Specifications
| Feature | Specification |
|---|---|
| Brand | KAOLALI |
| Model | WS-800 |
| Material | SUS 316 Stainless Steel |
| Mounting Method | 5-Hole SAE Standard |
| Length Range | 800 mm |
| Output Signal | 0-190 Ohm (European Standard) |
| Protection Rating | IP67 |
| Operating Temperature | -40°C to +85°C (-40°F to +180°F) |
| Screw Size | M5*16 |
| Empty Level Resistance | 0 Ohms (for 0-190 Ohm standard) |
| Full Level Resistance | 190 Ohms (for 0-190 Ohm standard) |
Image: Dimensional specifications for the fuel level sensor, including length 'M' and other measurements.
5. Setup and Installation
5.1 Sensor Installation
- Prepare the Mounting Location: Ensure the tank has a standard SAE 5-hole mounting pattern. Clean the area around the mounting hole.
- Apply Gasket: Place the provided gasket onto the sensor's mounting flange to ensure a watertight seal.
- Insert Sensor: Carefully insert the sensor into the tank opening.
- Secure with Screws: Align the 5 holes and secure the sensor using the five M5*16 screws. Tighten them evenly to prevent leaks.
5.2 Wiring Diagram
Refer to the wiring diagram provided with your product for specific connections. Generally, the sensor will have two wires: one for signal output (connected to the gauge) and one for ground.
- Connect the sensor's signal wire to the corresponding input on the fuel gauge.
- Connect the sensor's ground wire to a reliable ground point on the vehicle.
- Connect the fuel gauge to a 12V or 24V power supply (depending on your vehicle's electrical system) and a ground connection.
Image: Dimensions of the fuel gauge unit.
6. Operating Instructions
Once properly installed and wired, the fuel gauge will display the current fuel or water level in your tank. The gauge uses a stepper motor core for high precision and long lifespan.
- Power On: Turn on the vehicle's ignition or power supply to activate the gauge.
- Reading the Gauge: The needle will indicate the fuel level from 'E' (Empty) to 'F' (Full).
- Signal Standard: This system operates on a 0-190 Ohm European standard, where 0 Ohms indicates an empty tank and 190 Ohms indicates a full tank.
Images: The fuel gauge displaying an empty tank, both illuminated and unlit.
7. Maintenance
- Cleaning: Clean the exterior of the gauge and sensor with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check all wiring connections for corrosion or looseness. Ensure the sensor's mounting screws remain tight.
- Material Durability: The sensor is constructed from SUS 316 stainless steel, offering high resistance to corrosion and rust, ensuring a long service life.
8. Troubleshooting
- Gauge Not Working:
- Check power supply to the gauge.
- Verify ground connections for both sensor and gauge.
- Inspect wiring for any breaks or loose connections.
- Inaccurate Readings:
- Ensure the sensor length matches the tank depth.
- Verify the sensor is correctly installed and not obstructed.
- Confirm the gauge and sensor are compatible (0-190 Ohm standard).
- Leaks Around Sensor:
- Check if the gasket is properly seated.
- Ensure mounting screws are tightened evenly and sufficiently.
9. Warranty and Support
KAOLALI products are manufactured to high standards. This product typically comes with a 30-day return/replacement policy. For specific warranty details or technical support, please refer to your purchase documentation or contact KAOLALI customer service.
KAOLALI is a professional manufacturer of automotive and marine accessories, committed to providing safe, reliable, and stable products. For customized sensor lengths or gauges, please contact the manufacturer directly.