Aicevoos AS-NA Brake Fluid Tester Pen Instruction Manual

1. Introduction

The Aicevoos AS-NA Brake Fluid Tester Pen is designed to quickly and efficiently assess the moisture content in automotive brake fluid. This device supports DOT-3, DOT-4, and DOT-5.1 brake fluid types, providing a clear indication of fluid quality through a three-color backlight system and audible alarms. Regular testing of brake fluid helps ensure optimal braking performance and vehicle safety.

Image 1.1: The Aicevoos AS-NA Brake Fluid Tester Pen, designed for measuring DOT-3, DOT-4, and DOT-5.1 brake fluid.

2. Product Features

• Wide Application: Compatible with DOT-3, DOT-4, and DOT-5.1 brake fluids.
• Easy to Use: Simple control panel and fast detection process.
• Clear Indication: Three-color backlight (Green, Yellow, Red) and audible alarm for easy interpretation of results.
• High Sensitivity Probe: Equipped with an advanced precision sensor for accurate measurements.
• Portable Design: Compact and lightweight for easy carrying.
• Automatic Power Off: Device automatically powers off after 5 minutes of inactivity to conserve battery.

Image 2.1: Overview of the Aicevoos Brake Fluid Tester Pen's key features, including its high sensitivity probe, audible and visual alarm, three-color backlighting, and automatic switch-off function.

3. Setup

3.1 Battery Installation

The Aicevoos AS-NA Brake Fluid Tester Pen requires 2 AAA 1.5V batteries (included). To install or replace batteries:

1. Locate the battery compartment on the device.
2. Open the compartment cover.
3. Insert the 2 AAA batteries, ensuring correct polarity (+/-).
4. Close the battery compartment cover securely.

4. Operating Instructions

4.1 Power On/Off and Brake Fluid Type Selection

1. Press the power button (U) to turn on the device. The screen will illuminate.
2. Press the 'S' button to cycle through the brake fluid types (DOT3, DOT4, DOT-5.1) until the desired type is displayed.
3. The device will automatically power off after 5 minutes of inactivity.

Image 4.1: The function key ('S') used for selecting the brake fluid type (DOT3, DOT4, DOT5.1) before testing.

4.2 Testing Procedure

Follow these steps to accurately test your brake fluid:

1. Ensure the metal probe is clean and dry before each test.
2. Carefully immerse the entire metal part of the testing head into the brake fluid reservoir.
3. Hold the probe in the fluid for approximately 3 seconds to allow the reading to stabilize.
4. Observe the display and the color of the backlight for the moisture content reading.

Image 4.2: Demonstrates the brake fluid tester pen being used to test fluid in a vehicle's reservoir. The green display indicates a healthy fluid level.

4.3 Interpreting Results (Three-Color Backlight System)

The tester provides visual and audible indications of brake fluid quality:

• Green Backlight (0% - 2% moisture): The brake fluid is in good condition and ready for use.
• Yellow Backlight (2% - 3% moisture): The brake fluid is beginning to degrade. A slow audible buzzer will sound, indicating that the brake fluid needs to be changed soon.
• Red Backlight (Greater than 3% moisture): The brake fluid is severely degraded and requires immediate replacement. A rapid audible buzzer will sound.

Image 4.3: Visual representation of the three-color backlight system: Green for good fluid, Yellow for fluid needing attention, and Red for fluid requiring immediate replacement.

Image 4.4: Detailed infographic explaining the moisture percentage ranges for each backlight color (Green: 0-2%, Yellow: 2-3%, Red: >3%) and the corresponding action required.

5. Maintenance

5.1 Cleaning the Probe

To ensure accurate readings and prolong the life of your tester, clean the metal probe after each use:

1. After testing, wipe the probe thoroughly with a clean, dry cloth.
2. Ensure no brake fluid residue remains on the probe tips.
3. Store the device in a dry place.

6. Troubleshooting

• Inaccurate Readings: Ensure the probe is clean and dry before each test. Verify that the correct brake fluid type (DOT3, DOT4, or DOT-5.1) is selected on the device. Ensure the probe is fully immersed in the fluid.
• Device Not Powering On: Check if the AAA batteries are correctly installed and have sufficient charge. Replace batteries if necessary.
• No Display/Flickering Display: This may indicate low battery power. Replace the batteries.
• No Audible Alarm: Ensure the device is functioning correctly and the moisture level is within the yellow or red range.

7. Specifications

Image 7.1: A detailed chart outlining the technical specifications of the Aicevoos AS-NA Brake Fluid Tester Pen.

8. Warranty and Support

Information regarding product warranty and customer support is not available in the provided product data. Please refer to the product packaging or the manufacturer's official website for details on warranty coverage and how to contact customer support.