1. Įvadas
This manual provides comprehensive instructions for the installation, operation, and maintenance of your ELING Engine Tachometer with Hour Meter. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the device. This tachometer is designed for use in various vehicles, including cars and boats, operating on 12V or 24V systems.
2. Produktas baigtasview
The ELING Engine Tachometer is an 85mm gauge designed to display engine revolutions per minute (RPM) and accumulated operating hours. It features a clear display with red backlight for visibility in various lighting conditions and is built with waterproof and anti-fogging protection for durability.

2.1 pav.: priekis view of the ELING 7000 RPM Engine Tachometer with hour meter display.

2.2 pav.: Kampinis view of the ELING 7000 RPM Engine Tachometer with its red backlight illuminated.
3. Pakuotės turinys
Išpakuodami patikrinkite, ar yra visi toliau išvardyti daiktai ir ar jie yra geros būklės:
- ELING Engine Tachometer with Hour Meter (85mm)
- Laidų laidai
- Owner's Manual (Instruction Sheet)
- Mounting Bracket and Nuts

Figure 3.1: Contents of the ELING Tachometer package, including the gauge, wiring harness, and instruction manual.
4. Specifikacijos
| Funkcija | Specifikacija |
|---|---|
| Matavimo diapazonas | 0-7000 aps./min |
| Matuoklio skersmuo | 85 mm (3–3/8 colio) |
| Veiklos ttage | 9-32V DC (suitable for 12V/24V systems) |
| Veikimo srovė | ≤60mA |
| Foninio apšvietimo spalva | Raudona |
| Atsparumo vandeniui įvertinimas | 100% atsparus vandeniui |
| Anti-fogging Protection | Taip |
| Speed Ratio Adjustment | Reguliuojamas 1-300 |
| Valandų skaitiklis | Integruotas, nepakeičiamas |
| Gaminio matmenys (I x P x A) | 3.35 x 3.35 x 2.76 colio |
| Prekės svoris | 0.22 kilogramo (7.76 uncijos) |
| Darbinė temperatūra | -30°C iki +75°C |
| Laikymo temperatūra | -40°C iki +85°C |
5. Montavimas
Follow these steps for proper installation of the tachometer:
- Paruoškite tvirtinimo angą: Open a 3-3/8 inch (85mm) diameter hole in your dashboard or mounting panel. Ensure there is at least 2-3/4 inches (70mm) depth behind the panel for the gauge body.
- Insert the Gauge: Carefully insert the tachometer into the prepared hole.
- Pritvirtinkite matuoklį: Use the provided U-shaped mounting bracket and nuts to fasten the gauge securely from the rear of the panel. Tighten the nuts until the gauge is firm but avoid over-tightening.

5.1 pav.: galinis view of the ELING Tachometer showing the mounting bracket and electrical connections.

Figure 5.2: Owner's Manual diagram for installation and wiring.
6. Laidų schema
Refer to the wiring diagram below and the provided owner's manual for correct electrical connections. Ensure all connections are secure and insulated to prevent short circuits.
- Raudonas laidas: Connect to +9-32V DC power supply.
- Juodas laidas: Connect to Ground (-).
- Mėlyna viela: Connect to Tachometer Signal Input. This signal can be sourced from the engine's ignition coil, crankshaft sensor, or a dedicated tacho sensor (sold separately, e.g., ASIN B07RN3HJ72 or B07RR8NQ45).
- Oranžinė viela: Connect to Backlight (+).
The tachometer is suitable for both diesel and gasoline engines. The signal input method may vary depending on your engine type.

Figure 6.1: Owner's Manual diagram for wiring connections.
7. Operacija
7.1. Speed Ratio Adjustment
The tachometer requires a speed ratio setting to accurately display RPM. This ratio is adjustable from 1 to 300. The default idle speed is typically 600-800 RPM.
- Įeikite į sąrankos režimą: Press and hold the back button located on the rear of the tachometer for 3 seconds. The display will show the current speed ratio setting.
- Adjust Ratio: While in setup mode, press the button repeatedly to increase the ratio value. The value will increment by 0.5 with each press.
- Išsaugoti nustatymą: Once the desired ratio is displayed, release the button for 3 seconds. The tachometer will automatically save the new setting and exit setup mode.
Pastaba: If your tachometer signal is derived from the flywheel, the ratio value should correspond to the number of engine gear teeth divided by two (Poles/2). If the signal comes from the ignition coil in a gasoline engine, the ratio should be set to the number of cylinders divided by two (Cylinder/2).
7.2. Hour Meter Function
The tachometer includes an integrated hour meter that continuously records the total operating hours of the engine. This hour meter cannot be reset.
8. Problemų sprendimas
If you encounter issues with your tachometer, consider the following general troubleshooting steps:
- Nėra maitinimo / ekrano: Check all power connections (Red wire to +V, Black wire to Ground). Ensure the operating voltage is within 9-32V DC.
- Incorrect RPM Reading: Verify the speed ratio setting. Adjust it as described in Section 7.1. Ensure the signal input (Blue wire) is correctly connected to a reliable RPM signal source (ignition coil, crankshaft sensor, or tacho sensor).
- No RPM Movement: Confirm the signal wire is properly connected and receiving a signal. If using a tacho sensor, ensure it is functioning correctly.
- Pertraukiami skaitymai: Check for loose or corroded connections. Ensure the signal wire is not experiencing interference.
For persistent issues, consult a qualified technician or contact ELING customer support.
9. Priežiūra
The ELING Engine Tachometer is designed for durability and requires minimal maintenance.
- Valymas: Clean the gauge face with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the display or housing.
- Jungtys: Periodically inspect all electrical connections for tightness and corrosion.
- Aplinkos apsauga: While the gauge is waterproof, prolonged exposure to extreme conditions or direct high-pressure water jets should be avoided.
10. Garantija ir palaikymas
ELING products are manufactured to high-quality standards. For warranty information or technical assistance, please refer to the documentation included with your purchase or contact ELING customer support through their official channels. Keep your purchase receipt as proof of purchase for any warranty claims.