ET4401/ET4410 Desktop LCR Meter Instruction Manual

1. Introduction

The East Tester ET44 series LCR digital bridge is a high-precision component parameter analyzer designed using the automatic balance bridge principle. It offers a test bandwidth from 10 Hz to 100 KHz and a basic measurement accuracy of 0.1%. This instrument provides accurate and comprehensive survey and analysis for a wide range of components and materials, making it ideal for product research and development, incoming component inspection, and various online applications.

For a more detailed reference, please consult the official user manual PDF available from the manufacturer.

2. Package Contents

Please check the package contents upon unpacking. If any items are missing or damaged, contact your supplier.

• ET4401 or ET4410 Desktop LCR Meter
• Test Leads (BNC to Alligator Clips)
• Power Cable (specific to region, e.g., EU plug)
• User Manual (this document and potentially a separate PDF)

Figure 2.1: ET4410 LCR Meter with standard accessories.

3. Product Overview

Familiarize yourself with the front and rear panels of the LCR Meter before operation.

3.1 Front Panel

Figure 3.1: Front and Rear Panel Overview.

1. 3.5" TFT Screen: Displays measurement results, settings, and menu options.
2. Operation Keys: Buttons for navigation, function selection, and parameter adjustment (LEVEL, FREQ, RANGE, SPEED, ANULL, CAL, SET, ENTER, AUTO/SERIES, X/D/Q/ESR, TOL%, HOLD, DCR, MAX, MIN, AVG, COMPARE, SAVE).
3. Power Button: Turns the device on and off.
4. Test Terminals: BNC connectors for connecting test leads (Hcur, Hpot, Lpot, Lcur).

3.2 Rear Panel

5. Power Plug and Fuse Position: For connecting the AC power cable and housing the fuse.
6. Voltage Selection (110V or 220V): A switch to select the appropriate input voltage.
7. USB Port: For PC communication and data transfer.
8. RS232 Port: For serial communication with external devices.
9. Handle Port: For attaching a handle (if applicable).

Figure 3.2: Rear Panel Detail showing power input and voltage switch.

4. Setup

Follow these steps to set up your LCR Meter for the first time:

1. Power Voltage Selection: Before connecting the power cable, ensure the 110V/220V switch on the rear panel (item 6 in Figure 3.1) is set to match your local mains voltage. Incorrect voltage selection can damage the instrument.
2. Connect Power: Plug the provided power cable into the power inlet on the rear panel (item 5 in Figure 3.1) and then into a suitable AC power outlet.
3. Connect Test Leads: Connect the BNC ends of the test leads to the corresponding test terminals on the front panel (Hcur, Hpot, Lpot, Lcur - item 4 in Figure 3.1). Ensure a secure connection.
4. Power On: Press the Power button (item 3 in Figure 3.1) on the front panel to turn on the LCR Meter. The display will light up.

5. Operating Instructions

The ET4401/ET4410 LCR Meter offers various measurement modes and functions.

5.1 Basic Measurements

The meter can measure principal parameters (L, C, R, Z) and secondary parameters (X, D, Q, θ, ESR).

• Resistance Measurement: Connect the component to the test leads. Select the appropriate function using the operation keys.
• Capacitance Measurement: Connect the capacitor. The meter supports electrolytic capacitor measurement.
• Inductance Measurement: Connect the inductor.
• DCR (DC Resistance) Measurement: Use the DCR function for direct current resistance measurements.

Figure 5.1: Overview of measurement functions.

5.2 Measurement Settings

• Frequency (FREQ): Use the FREQ button to select the desired test frequency (up to 100 KHz).
• Test Level (LEVEL): Adjust the test signal voltage level (10 mV to 2000 mV) using the LEVEL button.
• Internal Bias: The internal bias voltage can be adjusted from 0 mV to 1500 mV in 1 mV steps.
• Range (RANGE): Select manual or automatic ranging for measurements.
• Speed (SPEED): Adjust the measurement speed (slow, medium, fast).

5.3 Calibration

Perform calibration for accurate measurements:

• Open Circuit Calibration: Used to compensate for stray capacitance.
• Short Circuit Calibration: Used to compensate for residual inductance and resistance of the test fixture.

5.4 Advanced Functions

• Comparator Function: Allows for sorting components into qualified and unqualified groups based on set limits. It supports 5 groups for sorting.
• Data Record Function: Records maximum, minimum, and average measurement values.
• System Settings: Configure language (Chinese/English), buzzer, screen brightness, etc., through the system settings menu.
• SCPI Communication: The instrument supports SCPI (Standard Commands for Programmable Instruments) protocol for remote control and automation via USB or RS232 interfaces.

6. Maintenance

Proper maintenance ensures the longevity and accuracy of your LCR Meter.

• Cleaning: Use a soft, dry cloth to clean the instrument's exterior. Do not use abrasive cleaners or solvents.
• Fuse Replacement: If the instrument does not power on, check the fuse located in the power inlet on the rear panel. Replace it with a fuse of the same rating (AC 250V 500mA). Ensure the instrument is disconnected from power before replacing the fuse.
• Storage: Store the instrument in a clean, dry environment away from direct sunlight, extreme temperatures, and high humidity.
• Test Leads: Inspect test leads regularly for damage. Replace them if insulation is cracked or connectors are loose.

7. Troubleshooting

If you encounter issues, try the following basic troubleshooting steps:

• No Power:
  • Check if the power cable is securely connected.
  • Verify the power outlet is functional.
  • Check the fuse (refer to Maintenance section).
  • Ensure the 110V/220V switch is set correctly.
• Inaccurate Measurements:
  • Perform open and short circuit calibration.
  • Ensure test leads are properly connected and not damaged.
  • Verify the component is correctly connected to the test leads.
  • Check for external interference or noise.
  • Ensure the correct test frequency and level are selected for the component.
• Display Issues:
  • Adjust screen brightness in system settings.
  • If the display is blank or garbled after power-on, power cycle the device.

If problems persist, contact technical support.

8. Specifications

9. User Tips

No specific user tips were available from provided reviews or Q&A content for this product.

10. Warranty and Support

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