ELING Universal Tachometer Sender Adapter RPM Signal Instruction Manual

1. Introduction

The ELING Universal Tachometer Sender Adapter is designed to convert RPM signals from various types of generators, including Diesel and Gasoline engines, and alternators. This device provides a stable and accurate RPM signal output, compatible with a wide range of tachometers and monitoring systems. Its compact size, easy installation, and robust design make it suitable for diverse applications.

2. Safety Information

• Ensure the power supply is disconnected before installation or maintenance to prevent electrical shock.
• Verify correct wiring connections to avoid damage to the adapter or connected equipment.
• Do not expose the device to extreme temperatures or corrosive environments beyond its specified operating conditions.
• This device operates on 9-32V DC. Connecting it to an incorrect voltage supply may cause permanent damage.

3. Product Features

• Compatible with all types of Diesel/Gasoline Engines, Alternators, and Generators.
• Easy Installation: No cable breaking required, no need for CANBUS/OBD connections.
• IP67 Waterproof rating for enhanced durability in harsh environments.
• Mini Size with a convenient Play & Plug design.
• Wide Power Supply Range: 9-32 VDC.

4. Package Contents

• 1x ELING Universal Tachometer Sender Adapter
• 1x Wiring Harness
• 1x Instruction Manual (printed)

Image: Contents of the package including the adapter, wiring, and manual.

5. Setup and Installation

5.1 Wiring Connections

Refer to the diagram below for proper wiring. Ensure all connections are secure and insulated.

Image: Detailed wiring diagram and DIP switch configuration from the owner's manual.

• Red Wire: Connect to +9-32VDC power supply.
• White Wire: Connect to the RPM Signal Input from the generator/engine.
• Yellow Wire: Connect to the RPM Signal Output of your tachometer/display.
• Black Wire: Connect to Ground (-).

5.2 DIP Switch Configuration

The adapter features two banks of 8 DIP switches (DIP A and DIP B) to select the appropriate channel for reading the RPM signal. Only one channel can be selected to work at a time. The switches allow for adjustment based on the frequency and signal amplitude of your generator's RPM output.

DIP Switch Settings (Example for Channels 1-8):

To select a channel, turn ON the corresponding DIP switch. For example, if you select CH1, you will have both A1 and B1 ON, and all other switches disconnected. The adapter can read different RPM signals. Users should select one from CH1-CH8 for correct reading.

5.3 Mounting

Mount the adapter in a secure location, away from excessive heat, moisture, and vibration. The compact size allows for flexible placement.

6. Operating Instructions

1. After completing the wiring and DIP switch configuration, apply power (9-32VDC) to the adapter.
2. The speed signal output indicator (LED) on the adapter will flicker, indicating that it is processing and outputting the RPM signal.
3. Monitor the RPM reading on your connected tachometer. If the reading is inaccurate, adjust the DIP switch settings to a different channel until the correct RPM is displayed.

7. Maintenance

• Keep the device clean and free from dust and debris. Use a soft, dry cloth for cleaning.
• Periodically check all wiring connections to ensure they are tight and free from corrosion.
• Inspect the housing for any signs of damage.

8. Troubleshooting

• No RPM Signal Output:
  • Check power supply connections (Red and Black wires) for correct voltage and polarity.
  • Verify the RPM signal input (White wire) is correctly connected to the generator's signal source.
  • Ensure at least one DIP switch channel is correctly selected (ON).
• Incorrect RPM Reading:
  • Review the DIP switch configuration. Try adjusting to a different channel (CH1-CH8) that better matches your generator's signal characteristics.
  • Confirm the tachometer or display unit is correctly calibrated and compatible with the adapter's output signal.
  • Check for any interference or noise in the signal lines.
• LED Indicator Not Flickering:
  • This indicates no RPM signal is being detected or processed. Follow steps for 'No RPM Signal Output'.

9. Specifications

10. User Tips

• Universal Compatibility: This adapter is designed to work with both petrol and diesel engines, as well as various alternators and generators. If you're converting a petrol engine signal for a diesel RPM meter, this device is suitable.
• Calibration via DIP Switches: The DIP switches are your primary tool for calibrating the tachometer reading. If your tachometer is showing an incorrect RPM, experiment with different DIP switch channel settings (CH1-CH8) to find the one that provides the most accurate reading for your specific engine and signal type.
• Signal Amplitude: Pay attention to the signal amplitude requirements listed for each DIP switch channel. Matching these to your generator's output can significantly improve accuracy.

11. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.