Runleader Digital Hour Meter Tachometer Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Runleader Digital Hour Meter Tachometer. This device is designed to monitor engine hours and RPMs, provide maintenance reminders, and track specific job times for various gas-powered equipment.

2. Product Features

• Multi-functionality: Includes tachometer, hour meter, service timers, and job timer for comprehensive engine monitoring.
• Hour Meter: Tracks total engine run time (TOT) with 0.1-hour accuracy. TOT hours are non-resettable and remain visible when the engine is off.
• Maintenance Reminder: Features a programmable service timer (SVC) for maintenance intervals and a job timer for specific tasks like oil changes or air filter replacements.
• Tachometer: Records engine RPMs accurately, aids in idle adjustment, and is programmable for various engine firing patterns. Includes a programmable RPM alert with a flashing red backlight and warning icon, and records/recalls maximum RPM.
• Additional Features: Easy installation, multi-color backlit display, replaceable battery, user shutdown with data retention, IP67 waterproof rating, two selectable operating systems, CE ROHS certified, and a 2-year warranty.

3. Package Contents

Verify that all items listed below are included in your package:

• Digital Hour Meter Tachometer (x1)
• 3M Adhesive Velcro (x1)
• Cable Ties (x2)
• Mounting Screws (x2)
• CR2450 Battery (x1)
• M3 Hex Nuts (x4)
• User Manual (x1)
• Paper Card (x1)

Figure 3.1: Included Accessories

4. Specifications

5. Setup and Installation

5.1 Engine Signal Connection

To accurately measure RPMs and engine hours, the signal wire must be correctly connected to the spark plug wire of your engine.

1. Locate the spark plug wire on your engine.
2. Wrap the signal wire from the tachometer around the spark plug wire 4-5 times. Ensure the wraps are tight and secure.
3. Use the provided cable ties to further secure the wrapped signal wire, preventing it from loosening due to vibration or movement.

Figure 5.1: Signal Wire Connection

5.2 Product Mounting

The hour meter tachometer offers two mounting options:

• Stick-on Mounting: Use the provided 3M adhesive Velcro to attach the unit to a clean, flat surface. Ensure the surface is free of dust and grease for optimal adhesion.
• Screw-on Mounting: Utilize the mounting holes on the unit and secure it with the provided screws and M3 hex nuts. This method offers a more permanent installation.

Figure 5.2: Mounting Options

6. Operating Instructions

The device features two buttons: MENU and SET. These buttons are used to navigate modes and adjust settings.

6.1 Display Modes

The meter cycles through various display modes. Press the MENU button to switch between modes.

• TOT (Total Hours): Displays the total accumulated engine run time. This value is non-resettable.
• RPM (Revolutions Per Minute): Shows the current engine RPM when the engine is running.
• SVC (Service Timer): Displays the countdown for the programmable maintenance reminder.
• JOB (Job Timer): Tracks the duration of a specific task, which can be reset.

Figure 6.1: Total Hours (TOT) Display

Figure 6.2: RPM and Alert RPM Displays

6.2 Setting Engine Firing Patterns

Accurate RPM readings depend on selecting the correct engine firing pattern. Refer to your engine's specifications to determine the appropriate setting.

1. With the engine off, press and hold the SET button until the display enters the setting mode (e.g., P1, P2, P3).
2. Press the MENU button to cycle through the available firing patterns (e.g., 1P1R for 1 pulse per revolution, 1P2R for 1 pulse every 2 revolutions, etc.).
3. Once the correct pattern is displayed, press and hold the SET button to confirm and exit the setting mode.

6.3 Setting Maintenance Reminders (SVC)

The SVC timer can be programmed to remind you of upcoming maintenance.

1. Navigate to the SVC display mode by pressing the MENU button.
2. Press and hold the SET button until the SVC value starts flashing.
3. Use the MENU button to adjust the desired maintenance interval (e.g., 20 hours, 50 hours).
4. Press and hold the SET button to confirm the setting. The timer will begin counting down from this value.

6.4 Setting RPM Alert

You can set an RPM alert to warn you if the engine exceeds a specified RPM limit.

1. Navigate to the RPM display mode.
2. Press and hold both MENU and SET buttons simultaneously until the RPM alert value starts flashing.
3. Use the MENU button to adjust the desired RPM alert threshold.
4. Press and hold the SET button to confirm. When the engine RPM exceeds this value, the display will show a red backlight and a warning icon.

6.5 User Shutdown

To turn off the display and conserve battery, press and hold both MENU and SET buttons simultaneously for approximately 3 seconds. All recorded data will be retained.

6.6 Backlight Operation

The display features a multi-color backlight. The backlight activates automatically when the engine is running or when a button is pressed. It typically stays on for a few seconds to conserve battery. Different operating systems (DSP1 & DSP2) may offer varying backlight behaviors.

Figure 6.3: Multi-Color Backlight Display

7. Maintenance

7.1 Battery Replacement

The device uses a replaceable CR2450 battery. When the battery indicator shows low power, replace it promptly.

1. Locate the battery compartment on the back of the unit.
2. Carefully open the battery cover using a small coin or screwdriver.
3. Remove the old CR2450 battery and insert a new one, ensuring correct polarity.
4. Close the battery cover securely. Ensure the cover is installed correctly, with any directional markings aligned, to maintain the waterproof seal.

7.2 Cleaning

Clean the unit with a soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the display or casing. The IP67 waterproof rating protects against dust and temporary immersion in water, but avoid prolonged submersion or high-pressure washing.

8. Troubleshooting

9. Warranty and Support

9.1 Warranty Information

This Runleader Digital Hour Meter Tachometer comes with a 2-year warranty from the date of purchase, covering manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.

9.2 Customer Support

For technical assistance, troubleshooting, or warranty inquiries, please contact Runleader customer service. Our team provides 24-hour customer service and technical support.

For more information, visit the official Runleader store: Runleader Store on Amazon