Keenso Digital Tachometer Gauge Instruction Manual

1. Einleitung

This manual provides comprehensive instructions for the installation, operation, and maintenance of your Keenso Digital Tachometer Gauge. This high-accuracy LCD display gauge is designed for various vehicle modifications, including cars, trucks, boats, and generator engines, providing precise engine speed (RPM) and hour readings.

Bild 1.1: Vorderseite view of the Keenso Digital Tachometer Gauge, featuring a black dial and silver bezel. The display shows RPM and hour readings.

Packungsinhalt:

• 1 x 0-9990RPM Tachometer Gauge
• 1 x Verbindungskabel
• 1 x Bedienungsanleitung (evtl. nicht in deutscher Sprache).

2. Funktionen

• Hohe Genauigkeit: Utilizes a stepping motor for precise RPM display and a clear LCD for hour readings.
• Langlebige Konstruktion: Made from stainless steel and plated plastic for long-lasting performance.
• Wasserdichtigkeit: IP67 protection class, allowing operation underwater up to 1 meter. Features curved glass with anti-fog function.
• Breites Volumentage Reichweite: Designed for ultra-wide working voltage of 9-32V DC, with a maximum tolerance of 36V (for less than 1 minute).
• Geringer Stromverbrauch: Efficient design ensures extended service life.
• Vielseitige Anwendung: Suitable for various stepping gauges and compatible with car, truck, boat, and generator engines.

3. Spezifikationen

Bild 3.1: Vorderseite view of the tachometer, illustrating its approximate 52mm (2-inch) installation diameter.

4. Einrichtung und Installation

Follow these steps for proper installation of your tachometer gauge. Ensure the vehicle's power is disconnected before beginning installation.

4.1 Montage des Messgeräts

1. Choose a suitable location on your dashboard or panel for installation.
2. Cut a circular hole with an approximate diameter of 52mm (2 inches) at the chosen location.
3. Insert the tachometer gauge into the hole.
4. Secure the gauge from the back using the provided mounting bracket and nuts.

4.2 Kabelverbindungen

Refer to the wiring diagram below and the provided connecting cable for correct connections. Incorrect wiring can damage the device or vehicle electrical system.

Bild 4.1: Hinten view of the tachometer, displaying the wiring terminals and connection points.

Image 4.2: The included connecting cable harness with color-coded wires for installation.

• Roter Draht: Connect to Battery Positive (+9-32V DC).
• Blauer Draht: Connect to Battery Negative (-).
• Schwarzes Kabel: Connect to Signal Input. This receives the pulse signal from your tacho sensor, engine, alternator, ignition coil, or crankshaft sensor.
• Orange/Yellow Wire: Connect to Backlight Positive (+9-32V DC). This powers the red backlight.

After all connections are made, ensure they are secure and insulated to prevent short circuits. Reconnect the vehicle's power.

5. Bedienungsanleitung

The Keenso Digital Tachometer Gauge provides real-time engine RPM and accumulated operating hours on its LCD display.

Bild 5.1: Nahaufnahme view of the digital display, clearly showing RPM (Revolutions Per Minute) and accumulated operating hours (H).

5.1 Ablesen des Displays

• The large digital numbers indicate the engine's RPM (Revolutions Per Minute), typically displayed as "RPM x10" or similar, meaning the displayed value should be multiplied by 10. The indicating range is 0-9990 RPM.
• The smaller digital numbers, usually accompanied by an "H", display the total accumulated operating hours of the engine.

5.2 Ein-/Ausschalten

The gauge will power on automatically when connected to a 9-32V DC power source and will display readings once an engine pulse signal is detected. It powers off when the power source is disconnected.

6. Wartung

The Keenso Digital Tachometer Gauge is designed for durability and requires minimal maintenance.

• Reinigung: Wipe the display and bezel with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the surface or anti-fog coating.
• Wasserbeständigkeit: The gauge has an IP67 rating, meaning it is protected against dust and can withstand immersion in water up to 1 meter for 30 minutes. However, prolonged submersion or high-pressure water jets should be avoided.
• Verbindungen: Überprüfen Sie regelmäßig die Kabelverbindungen, um sicherzustellen, dass sie fest sitzen und frei von Korrosion sind.

7. Fehlerbehebung

If you encounter issues with your tachometer gauge, refer to the following common problems and solutions:

• Kein Display/Keine Stromversorgung:
  • Check the power connections (Red wire to positive, Blue wire to negative) for proper voltage (9-32V DC) and secure contact.
  • Ensure the backlight wire (Orange/Yellow) is correctly connected if the backlight is not illuminating.
• Falsche Drehzahlmessung:
  • Verify the signal wire (Black) is correctly connected to a reliable pulse signal source (tacho sensor, ignition coil, alternator, crankshaft sensor).
  • Ensure the signal source is functioning correctly.
  • Check for any loose or corroded connections in the signal line.
• Display Flickering or Intermittent:
  • Check all wiring for loose connections or damaged insulation.
  • Ensure the power supply is stable and within the 9-32V DC operating range.

If problems persist after attempting these solutions, please contact Keenso customer support for further assistance.

8. Garantie und Support

Keenso products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the contact information provided with your purchase or visit the official Keenso webWebsite.

When contacting support, please have your product model number (Keenso1ash52fivb-12) and purchase details available.