1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your KOSO DL-03SR GP Style Multifunction Gauge. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
2. Consignes de sécurité
- Débranchez toujours la batterie du véhicule avant d'effectuer des travaux électriques afin d'éviter les courts-circuits et les chocs électriques.
- Ensure all wiring connections are secure and properly insulated to prevent damage to the gauge or vehicle's electrical system.
- Do not attempt to modify the gauge. Unauthorized modifications can lead to malfunction and void the warranty.
- Consultez un technicien qualifié si vous avez des doutes concernant les étapes d'installation.
- Ensure the gauge is securely mounted and does not obstruct your view ou interférer avec les commandes du véhicule.
3. Produit terminéview et fonctionnalités
The KOSO DL-03SR GP Style Multifunction Gauge is designed to provide essential vehicle information in a compact and clear display. It integrates multiple functions into a single unit, suitable for various street applications.

Figure 1 : Devant view of the KOSO DL-03SR GP Style Multifunction Gauge. The display shows current speed (MPH), odometer reading, time, and an RPM bar graph. Indicator lights for turn signals, high beam, engine check, oil pressure, and neutral are visible at the bottom.
Caractéristiques principales :
- Compteur de vitesse: Affiche la vitesse actuelle en MPH ou KM/H.
- Tachymètre: Digital bar graph display for engine RPM (x 1000 RPM).
- Odomètre: Records total distance traveled.
- Compteur kilométrique: Measures distance for individual trips.
- Horloge: Affiche l'heure actuelle.
- Voltmètre: Surveille la tension de la batterie du véhiculetage with a 4-level display.
- Voltage Avertissement : Flashing warning when voltage est inférieur à 8 V ou supérieur à 18 V.
- Voyants lumineux : Includes indicators for left turn, right turn, high beam, engine check, oil pressure, and neutral gear.
- Boutons de contrôle : 'SELECT' and 'ADJUST' buttons for mode selection and settings.
4. Configuration et installation
Proper installation is crucial for the gauge's performance and longevity. It is recommended to have this unit installed by a professional mechanic if you are not familiar with vehicle electrical systems.
4.1 Montage
Mount the gauge in a location that provides clear visibility to the rider without obstructing the view of the road or interfering with vehicle controls. Ensure the mounting bracket (if included) is securely fastened to prevent vibration damage.
4.2 Connexions de câblage
Identify the corresponding wires on your vehicle's electrical system. Refer to your vehicle's service manual for specific wiring diagrams. The KOSO DL-03SR typically requires the following connections:
- Fil rouge : Connect to a constant +12V battery positive source. This maintains the clock and stored settings.
- Fil marron : Connect to a switched +12V ignition positive source. This powers the gauge when the ignition is ON.
- Fil noir : Connect to a reliable ground point on the vehicle chassis.
- Câble du capteur de vitesse : Connect to the speed sensor. Follow the sensor's specific installation instructions for optimal calibration.
- RPM Signal Wire: Connect to the engine's RPM signal source (e.g., ignition coil, ECU signal).
- Indicator Light Wires: Connect to the respective vehicle indicator light circuits (left turn, right turn, high beam, neutral, oil pressure, engine check).
Use appropriate connectors and ensure all connections are waterproofed and protected from abrasion.
5. Mode d'emploi
The DL-03SR gauge features two control buttons, 'SELECT' and 'ADJUST', located on the sides of the unit, for navigating menus and adjusting settings.
5.1 Modes d'affichage de base
Upon powering on, the gauge will typically display speed, RPM, and odometer. Press the 'SELECT' button to cycle through different display modes, such as trip meter, clock, or other available functions.
5.2 Réglage de l'horloge
- Enter the clock setting mode (usually by holding 'SELECT' or 'ADJUST' for a few seconds, or cycling through modes).
- Use the 'ADJUST' button to change the hour value.
- Press 'SELECT' to move to the minute value.
- Use 'ADJUST' to change the minute value.
- Press 'SELECT' again to save and exit the clock setting mode.
5.3 Unit Selection (MPH/KM/H)
The gauge allows selection between Miles Per Hour (MPH) and Kilometers Per Hour (KM/H). This setting is usually accessed through a dedicated setup menu. Refer to the detailed wiring diagram and setup guide provided with your product for exact steps, as procedures may vary slightly.
5.4 Voltmeter Display and Warning
The voltmeter displays battery voltage in 4 levels:
- Niveau 1 (Faible) : DC 11.6 ~ 12.0V
- Niveau 2 : DC 12.1 ~ 12.5V
- Niveau 3 : DC 12.6 ~ 13.0V
- Niveau 4 (Élevé) : DC 13.1V and above
A flashing warning will activate if the voltage drops below 8V or rises above 18V, indicating a potential issue with the vehicle's charging system.
6. Entretien
The KOSO DL-03SR gauge is designed for durability and requires minimal maintenance.
- Nettoyage: Utilisez un chiffon doux et sec.amp cloth to clean the display and housing. Avoid abrasive cleaners or solvents that could damage the plastic or screen.
- Vérification de la connexion : Inspectez périodiquement tous les raccordements électriques afin de vous assurer qu'ils restent bien fixés et exempts de corrosion.
- Protection de l'environnement : While designed for outdoor use, prolonged exposure to extreme weather conditions (e.g., direct sunlight, heavy rain) can affect the lifespan of the unit.
7. Dépannage
If you encounter issues with your DL-03SR gauge, perform the following basic checks:
- Pas d'affichage/d'alimentation :
- Check the main power (Red wire) and ignition power (Brown wire) connections for continuity and proper voltage.
- Verify the ground connection (Black wire) is secure.
- Vérifiez si des fusibles ont sauté dans le système électrique du véhicule.
- Inaccurate Speed/RPM Reading:
- Ensure the speed sensor and RPM signal wires are correctly connected and not damaged.
- Verify the calibration settings for speed and RPM are correct according to your vehicle's specifications (e.g., wheel circumference, number of ignition pulses).
- Les voyants ne fonctionnent pas :
- Check the wiring connections for the specific indicator light.
- Ensure the vehicle's original indicator light circuit is functioning correctly.
- Flashing Voltage Avertissement :
- Indicates vehicle voltage is outside the 8V-18V range. Check the vehicle's battery and charging system (alternator/stator).
If troubleshooting steps do not resolve the issue, contact KOSO customer support or your dealer for further assistance.
8. Spécifications
| Fonctionnalité | Spécification |
|---|---|
| Numéro de modèle | BB642W20 |
| Dimensions (L x l x H) | 4.1 x 8.2 x 3.05 pouces |
| Poids de l'article | 8.5 onces (0.53 livre) |
| Matériel | Métal, plastique, verre |
| Voltmeter Display Range | 4 levels (DC 11.6V to 13.1V+) |
| Voltage Warning Range | Below 8V or Above 18V |
| Fabricant | KOSO |
9. Garantie et assistance
For warranty information, please refer to the documentation provided at the time of purchase or contact your authorized KOSO dealer. Warranty terms and conditions may vary by region and retailer.
For technical support, product inquiries, or assistance with installation and troubleshooting beyond this manual, please contact KOSO customer service through their official website or your product retailer.