Do you own a trailer and need to install an air weigh trailer scale? If so, you may be wondering about the wiring diagram. In this article, we will discuss the wiring diagram for an air weigh trailer scale and provide some commonly asked questions.
Wiring Diagram
The wiring diagram for an air weigh trailer scale is relatively simple. There are four main components that need to be wired: the load cell, the pressure sensor, the display, and the power supply.
The load cell is the sensor that measures the weight of the trailer. The pressure sensor measures the air pressure within the airbag suspension system. The display shows the weight readings. And the power supply provides power to the system.
The load cell and pressure sensor are connected to the display using two wires each. The power supply is connected to the display with three wires. The wiring diagram will look something like this:
| Component | Wire Color | Connection Point |
|---|---|---|
| Load Cell | Red | Positive Input |
| Black | Negative Input | |
| Pressure Sensor | Blue | Positive Input |
| White | Negative Input | |
| Display | Red | Positive Input |
| Black | Negative Input | |
| Green | Data Input | |
| Power Supply | Red | Positive Input |
| Black | Negative Input | |
| Green/Yellow | Ground |
Load Cell Wiring
The load cell is the main component that measures the weight of the trailer. It is usually located on the trailer’s suspension system or axle. In order to wire the load cell, you will need to find the two wires that are coming out of it.
The red wire is the positive input and should be connected to the positive input of the display. The black wire is the negative input and should be connected to the negative input of the display.
If you are unsure which wires to connect, refer to the wiring diagram provided by the manufacturer or consult with a professional.
Pressure Sensor Wiring
The pressure sensor measures the air pressure within the airbag suspension system. It is usually located near the suspension system. The two wires that come out of the pressure sensor are blue and white.
The blue wire is the positive input and should be connected to the positive input of the display. The white wire is the negative input and should be connected to the negative input of the display.
As with the load cell, refer to the wiring diagram or consult with a professional if you are unsure which wires to connect.
Display Wiring
The display is where the weight readings are shown. It usually has three wires coming out of it: red, black, and green. The red and black wires are for power, and the green wire is for data input.
Connect the red wire to the positive input of the power supply, the black wire to the negative input of the power supply, and the green wire to the data input of the load cell and pressure sensor.
Power Supply Wiring
The power supply provides power to the system. It usually has three wires coming out of it: red, black, and green/yellow. Connect the red wire to the positive input of the display, the black wire to the negative input of the display, and the green/yellow wire to the ground.
FAQ
What is an air weigh trailer scale?
An air weigh trailer scale is a type of on-board scale that measures the weight of a trailer. It is installed on the trailer and can be used to prevent overloading and ensure compliance with weight regulations.
Why do I need an air weigh trailer scale?
Having an air weigh trailer scale installed can help prevent overloading, reduce wear and tear on your tires and suspension system, and ensure compliance with weight regulations. It can also help you save money on fines and avoid potential accidents due to overloaded trailers.
Can I install an air weigh trailer scale myself?
While it is possible to install an air weigh trailer scale yourself, it is recommended that you consult with a professional to ensure proper installation and calibration. This will help ensure accurate weight readings and prevent potential problems down the road.
What are the benefits of using an air weigh trailer scale?
Some of the benefits of using an air weigh trailer scale include preventing overloading, avoiding fines and potential accidents, reducing wear and tear on your tires and suspension system, and ensuring compliance with weight regulations.
What are the different types of air weigh trailer scales?
There are several different types of air weigh trailer scales, including axle scales, on-board scales, and portable scales. Axle scales are installed on the trailer’s suspension system, on-board scales are installed on the trailer itself, and portable scales can be carried with you and used on multiple trailers.
How accurate are air weigh trailer scales?
The accuracy of air weigh trailer scales can vary depending on the make and model. However, most scales are designed to be highly accurate and reliable, with some models capable of measuring weight within a few pounds.
What is the cost of an air weigh trailer scale?
The cost of an air weigh trailer scale can vary depending on the make and model, as well as the installation and calibration fees. However, most scales range from a few hundred to several thousand dollars.
In conclusion, the wiring diagram for an air weigh trailer scale is relatively simple, with four main components that need to be wired: the load cell, pressure sensor, display, and power supply. By following the wiring diagram and consulting with a professional if needed, you can ensure accurate weight readings and compliance with weight regulations.
