FNIRSI LCR-P1 Transistor Tester User Manual

1. Introduction

The FNIRSI LCR-P1 is a portable, multifunctional LCR/ESR meter and transistor tester designed for precise measurement of various electronic components. It features automatic component recognition, infrared decoding, and a revolutionary replaceable test board. This device is an essential tool for electronics engineers, technicians, and hobbyists engaged in product development, appliance repair, laboratory research, and DIY electronics projects.

Figure 1: FNIRSI LCR-P1 Transistor Tester and included accessories.

2. Product Features

• Comprehensive Measurement Capabilities: The LCR-P1 can measure MOS/SCR thyristors, NPN/PNP type transistors, field-effect transistors (MOSFET, IGBT, JFET), inductors, capacitors, resistors, batteries, and Zener diodes from 0.01V-32V. It also includes an infrared decoding function.


Figure 2: Overview of the LCR-P1's diverse measurement functions.

• Innovative Replaceable Test Board: Features a revolutionary design with a replaceable test board to accommodate a wider range of testing needs, offering unprecedented convenience and efficiency.

Figure 3: The replaceable test board enhances versatility for different component types.
• Dedicated Zener Diode Test Channel: Equipped with an independent high-voltage test channel specifically for Zener diodes. Pressing the Zener button switches to Zener diode measurement mode for more accurate readings.


Figure 4: The dedicated Zener diode test channel for precise voltage measurement.

• Infrared Decoding Function: Conveniently switch to infrared decoding mode. When an infrared signal is sent towards the infrared receiver, the device automatically decodes it, aiding in diagnosis and debugging.

Figure 5: Infrared remote control signal decoding in action.
• Easy One-Button Operation & Automatic Recognition: Features automatic component recognition. Simply insert the component and press the TEST button for quick and easy measurement.
• Safety Features: Equipped with an anti-burn function. It automatically identifies uncharged capacitors and discharges them automatically upon insertion and locking, preventing potential damage to the device or component.


Figure 6: The anti-burn protection mechanism ensures safe operation.

• Portable Design: Built-in 300mAh rechargeable lithium battery and Type-C charging port. Its small, lightweight, and compact design makes it highly portable and convenient for use anywhere.


Figure 7: The compact and lightweight design of the LCR-P1 for easy portability.

3. Setup

3.1 Unboxing and Included Components

Carefully unpack the FNIRSI LCR-P1 and verify that all components are present:

• LCR-P1 Main Unit
• Test Board x 1
• Type-C Charging Cable x 1
• Test Hook x 3
• Instruction Manual x 1
• Storage Box x 1

3.2 Charging the Device

The LCR-P1 has a built-in 300mAh rechargeable lithium battery. Before first use, it is recommended to fully charge the device.

1. Connect the provided Type-C charging cable to the Type-C port on the LCR-P1.
2. Connect the other end of the cable to a standard USB power adapter (e.g., 5V/1A) or a computer's USB port.
3. The device's screen will indicate the charging status. Once fully charged, disconnect the cable.

4. Operating Instructions

4.1 General Measurement

The LCR-P1 features automatic component recognition, simplifying the measurement process.

1. Ensure the device is powered on.
2. Insert the component to be tested into the appropriate test socket (ZIF socket or test hook connections). For components with multiple pins, ensure they are correctly seated.
3. Press the TEST button.
4. The device will automatically identify the component type and display its parameters on the color screen.

4.2 Specific Measurement Modes

The LCR-P1 supports various component tests:

• Transistor Test:

  Insert the transistor into the ZIF socket. The device will identify NPN/PNP type, MOSFET, IGBT, JFET, and display pinout, hFE, Ie, and Vbe values.

  

  Figure 8: Transistor testing showing pin configuration and parameters.
• Diode Test:

  Insert the diode. The device will display forward voltage drop and identify the diode type.

• Resistor Test:

  Insert the resistor. The device will measure and display its resistance value.

  

  Figure 9: Resistance measurement using the LCR-P1.
• Capacitor Test:

  Insert the capacitor. The device will measure capacitance and ESR (Equivalent Series Resistance).

  

  Figure 10: Capacitance and ESR measurement display.

• Inductor Test:

  Insert the inductor. The device will measure and display its inductance value.

  

  Figure 11: Inductance measurement display.

• Zener Diode Test:

  For Zener diodes, press the Zener button to enter the dedicated Zener diode test mode. Insert the Zener diode into the appropriate test points. The device will measure its breakdown voltage (0.01V-32V).

  

  Figure 12: Zener diode voltage measurement in dedicated mode.
• Infrared Decoding:

  Slide the mode switch to the IR-Decoding position. Point an infrared remote control at the IR receiver on the LCR-P1 and press a button. The device will display the decoded infrared signal data (e.g., address code, command code).

4.3 Using the Replaceable Test Board

The LCR-P1 comes with a replaceable test board, allowing for testing of different component packages, including SMD components. To replace the test board:

1. Gently slide out the currently installed test board.
2. Align the new test board with the slot and carefully slide it into place until it is securely seated.
3. Ensure proper contact before performing measurements.

Figure 13: The replaceable test board allows for testing of various component types, including SMD.

5. Maintenance

• Cleaning: Use a soft, dry cloth to clean the device. Do not use abrasive cleaners or solvents.
• Storage: Store the LCR-P1 in a cool, dry place, away from direct sunlight and extreme temperatures. When not in use for extended periods, store it in its provided storage box.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Recharge the device regularly, even if not in active use.
• Firmware Updates: Periodically check the official FNIRSI website for firmware updates to ensure optimal performance and access to new features or bug fixes.

6. Troubleshooting

For further assistance, please refer to the "Warranty and Support" section.

7. Specifications

8. Warranty and Support

For product support, warranty information, or technical inquiries, please contact FNIRSI customer service. You can typically reach them via the Amazon messaging system by navigating to your order history and selecting "Contact Seller" for your LCR-P1 purchase.

Alternatively, you may contact FNIRSI's after-sales service center directly at support@fnirsi.com. When sending emails with large attachments (photos, videos), direct email is recommended as Amazon's messaging system may have attachment size limitations.

8.1 User Manual (PDF)

A detailed PDF user guide in Japanese is available for download. Please refer to the product detail page on Amazon under the "Safety and Product Resources" section and click on the "User Guide (PDF)" link.

Figure 14: Location of the PDF user guide on the product page.