1. Introduction
Thank you for choosing the ARTILAURA 85mm 6000 RPM Tachometer. This gauge is designed for precise engine RPM measurement in various vehicles, including marine, automotive, and truck applications. It features a durable, waterproof construction and a customizable 7-color backlight. Please read this manual thoroughly before installation and operation to ensure correct usage and optimal performance.
2. Product Features
- 7-Color Backlight: Easily switch between Blue, Red, Green, Teal, Purple, White, and Yellow backlight colors to match your preference or dashboard lighting. An automatic cycling mode is also available.
- Durable Construction: Features an 85mm (3-3/8") 316 stainless steel bezel with curved glass, designed to prevent fogging and ensure clear visibility of the instrument display.
- High Visibility: Equipped with a red illuminated needle and a bright LED display for clear readings, even at night.
- Wide RPM Range: Accurately reads engine speeds from 0 to 6,000 RPM.
- Broad Compatibility: Suitable for 4, 6, 8, 10, and 12 cylinder gas-powered engines in 9-32V vehicle systems.
- Sensor Compatibility: Designed to be compatible with various tacho RPM sensors for versatile application.
- Waterproof Rating: IP67 rated, ensuring reliable operation in marine environments and protection against water ingress.
3. Specifications
| Brand | ARTILAURA |
| Model Number | AR-CX8149 |
| Material | Glass, Plastic, 316 Stainless Steel |
| Gauge Diameter | 85mm (3-3/8 inches) |
| Installation Depth | 55mm (2.2 inches) |
| RPM Range | 0-6000 RPM |
| Operating Voltage | 9-32V DC |
| Backlight Colors | 7 Solid Colors (Blue, Red, Green, Teal, Purple, White, Yellow) + Automatic Cycle |
| Waterproof Rating | IP67 |
| Item Dimensions (L x W x H) | 2.2 x 2.2 x 2 inches |
| Item Weight | 0.38 Pounds |
4. Installation
4.1 Mounting the Gauge
- Before installation, create a circular opening in the panel with a diameter of 85mm (3-3/8 inches). Ensure there is sufficient space (at least 55mm / 2.2 inches) behind the panel for the gauge body and wiring.
- Insert the tachometer into the prepared hole.
- Secure the gauge using the provided mounting ring and screws from the backside of the panel.
Image: Front and back view of the tachometer, showing its dimensions (97mm front, 85mm diameter, 56mm depth) and the wiring harness.
4.2 Wiring Diagram
Connect the wires according to the following diagram:
- Black Wire: Connect to Ground (-)
- Red Wire: Connect to 9-32V DC Power (+)
- Blue Wire: Connect to RPM Signal Input
- Yellow Wire: Connect to Backlight Power (+)
Image: Detailed view of the tachometer's rear connections, illustrating the color-coded wiring for Ground, Power, RPM Signal, and Backlight. A button for color change is also visible.
4.3 Engine Compatibility Settings (Speed Ratio)
The tachometer requires calibration for your specific engine type. Refer to the table below for common speed ratio settings:
| Engine Type | Poles / Cylinders | Speed Ratio |
|---|---|---|
| Outboard Engine | 4 Poles | 2 |
| 6 Poles | 3 | |
| 8 Poles | 4 | |
| 10 Poles | 5 | |
| 12 Poles | 6 | |
| Inboard Gas Engine | 4 Cylinder | 2 |
| 6 Cylinder | 3 | |
| 8 Cylinder | 4 | |
| 10 Cylinder | 4 | |
| 12 Cylinder | 5 |
5. Operation
5.1 Backlight Color Adjustment
To change the backlight color, briefly press the rubber button located on the backside of the gauge. Each short press will cycle through the following colors:
Red (default) → Green → Blue → White → Yellow → Cyan → Purple → Automatic (cycles colors every 20 seconds) → Red (cycle repeats).
Image: A series of tachometers demonstrating the 7 available backlight colors (Red, Green, Blue, White, Yellow, Cyan, Purple).
5.2 Tachometer Calibration (Speed Ratio Setting)
To calibrate the tachometer for your engine's speed ratio:
- Press and hold the rubber button on the backside of the gauge for 3 seconds to enter setting mode. If the button is released for more than 3 seconds, the gauge will exit setting mode.
- While in setting mode, each short press of the button will increase the speed ratio value. Releasing the button and pressing it again will decrease the value. Holding the button down for a longer duration will cause the value to change more quickly. The adjustable range for the speed ratio is 1.0 to 360, with a minimum step value of 0.1.
- Once the desired speed ratio value is set (refer to the table in Section 4.3), release the button. The tachometer will automatically save the setting after 3 seconds.
- If the setup does not meet your requirements, repeat the process to re-setup the speed ratio.
6. Maintenance
- Cleaning: Use a soft, damp cloth to clean the gauge surface. Avoid abrasive cleaners or solvents that could damage the bezel or glass.
- Inspection: Periodically check all wiring connections to ensure they are secure and free from corrosion.
- Waterproofing: Ensure the rubber button and rear seal remain intact to maintain the IP67 waterproof rating.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Gauge does not power on | No power supply; incorrect wiring; blown fuse. | Check power connections (Red and Black wires). Verify fuse in power line. Ensure correct voltage (9-32V). |
| Tachometer needle does not move or is erratic | Incorrect RPM signal connection; faulty RPM sensor; incorrect speed ratio setting. | Verify Blue wire connection to RPM signal. Check RPM sensor functionality. Recalibrate the speed ratio (Section 5.2). |
| Backlight does not change color | Yellow wire not connected; button malfunction. | Ensure Yellow wire is connected to power. Press the button firmly. |
| Gauge fogs up internally | Seal integrity compromised; extreme temperature changes. | While the gauge is designed to prevent fogging, persistent fogging may indicate a seal issue. Contact support if problem persists. |
8. Product Video
Video: An official product video demonstrating the ARTILAURA Tachometer Gauge, showcasing its 7-color backlight feature and overall appearance. This video provides a visual overview of the product's functionality.
9. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or contact ARTILAURA customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.