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Description
Main Function
Used to measure the speed/RPM of diesel and gasoline engines in real time. The instrument is controlled by a microcomputer and displays the engine speed on a liquid crystal display.
Key Features
| Feature | Details |
|---|---|
| Product Name | LZS Engine Tachometer |
| Application | Diesel engine and gasoline engine speed measurement |
| Display | Liquid crystal display / LCD |
| Control System | Microcomputer controlled |
| Measurement Type | Real-time engine speed measurement |
| Test Range | 0 to 9999 RPM |
| Power Supply | Single 9V battery |
| Sensor System | Separate sensor connected to main unit |
| Operating Method | Gasoline engine and diesel engine testing modes |
Operating Environment
| Parameter | Specification |
|---|---|
| Ambient Temperature | -15°C to 45°C |
| Relative Humidity | 20% to 80% |
Product Structure
The instrument consists of two main parts:
- Main Machine / Tachometer Unit
- Sensor Part
The sensor is connected to the right side of the instrument through a connector.
Engine Testing Method
1. Gasoline Engine Testing
- Pull out the antenna on the upper part of the tachometer.
- Place it at any position of the engine.
- Can be used in contact or non-contact state.
- Start the engine.
- Turn on the power switch.
- The instrument displays the engine speed in real time.
2. Diesel Engine Testing
- Attach the diesel engine speed sensor to the high-pressure oil pipe of the diesel engine.
- Start the engine.
- After normal engine operation, turn on the power switch.
- The instrument displays the engine speed in real time.
Adjustment Note
Due to different pressures in diesel engine high-pressure tubing, the instrument includes two gain adjustment modes. If the displayed speed is unstable, adjust the gain switch on the right side of the instrument panel.
Battery Note
The instrument uses a single 9V battery. Replace the battery when the LCD display becomes unclear or weak.