OWON B41T+ High Precision Digital Multimeter User Manual

1. Introduction

The OWON B41T+ is a high-precision 4 1/2 digit (21999 counts) True RMS digital multimeter designed for accurate electrical measurements. It features Bluetooth connectivity, allowing seamless integration with Android (4.3+) and iOS (7.0+) smartphones and tablets. This device supports various measurement functions including voltage, current, resistance, capacitance, frequency, duty cycle, and temperature. Advanced features include standalone data logging, graphical display of measurements on connected smart devices, and Japanese voice output for readings.

2. Safety Information

Please read and understand all safety instructions before operating the OWON B41T+ Digital Multimeter. Failure to follow these instructions may result in electric shock, fire, or damage to the device.

• Always ensure the multimeter is in the correct function mode before connecting test leads to a circuit.
• Do not exceed the maximum input limits for any measurement range.
• Inspect test leads for damage before each use. Replace damaged leads immediately.
• Avoid using the multimeter in wet environments or during electrical storms.
• Always disconnect power to the circuit under test before measuring resistance, capacitance, or continuity.
• Use caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC, as these pose a shock hazard.

3. Product Overview and Components

The OWON B41T+ Digital Multimeter is designed for ease of use and durability. Below are the main components and included accessories.

Figure 3.1: Front and side view of the OWON B41T+ Digital Multimeter, showing the display, function dial, and input jacks.

Figure 3.2: Included accessories: User's Manual, Multimeter test leads, Soft bag, K-type thermocouple (temperature probe), and a multi-function test bench adapter.

4. Setup

4.1 Battery Installation

The OWON B41T+ is powered by batteries. To install or replace batteries:

1. Ensure the multimeter is turned OFF.
2. Locate the battery compartment cover on the back of the device.
3. Use a screwdriver to open the battery compartment.
4. Insert the required batteries, observing correct polarity.
5. Securely close the battery compartment cover.

4.2 App Installation and Bluetooth Pairing

To utilize the smart device connectivity features, download the OWON multimeter application from your device's app store (compatible with Android 4.3+ and iOS 7.0+).

1. Download and install the official OWON multimeter app on your smartphone or tablet.
2. Turn on the OWON B41T+ multimeter.
3. Enable Bluetooth on your smart device.
4. Open the OWON app and follow the on-screen instructions to search for and pair with your B41T+ device. The Bluetooth icon on the multimeter display will indicate a successful connection.

Figure 4.1: The OWON B41T+ multimeter displaying a measurement, with a smartphone screen showing the corresponding app interface.

5. Operating Instructions

The OWON B41T+ offers a wide range of measurement functions. Use the central rotary dial to select the desired measurement mode.

5.1 Basic Measurements

To perform a basic measurement:

1. Select the appropriate function (e.g., V for voltage, A for current, Ω for resistance) using the rotary dial.
2. Connect the test leads to the correct input jacks on the multimeter (e.g., COM and VΩmA for voltage/resistance, COM and 20A or mAμA for current).
3. Connect the test leads to the circuit or component under test.
4. Read the measurement value on the multimeter's display.

5.2 Advanced Features with Bluetooth Connectivity

When connected to a smartphone or tablet via Bluetooth, the OWON B41T+ provides enhanced functionality:

• Data Logging: Record measurement data over time directly to your smart device.
• Graphical Display: View real-time measurement trends and historical data in graphical format.
• Voice Output: The device can announce measurement readings in Japanese, allowing for hands-free operation.
• Data Management: Save, store, print, and email measurement data (CSV format) directly from the app.
• Multi-Device Connection: Connect two OWON B41T+ units simultaneously to your smart device to monitor two different parameters (e.g., voltage and current, or voltage and resistance) on a dual-screen display.
• Remote Operation: Utilize remote desktop applications like TeamViewer to control the connected smartphone/tablet from anywhere, enabling remote monitoring and operation of the multimeter.

Figure 5.1: Illustration of advanced features including simultaneous measurement with two multimeters, data logging, graphical display, and voice output.

6. Specifications

The following table details the technical specifications of the OWON B41T+ Digital Multimeter.

Figure 6.1: Detailed specifications including measurement ranges, resolution, and accuracy.

7. Maintenance

Proper maintenance ensures the longevity and accuracy of your OWON B41T+ Digital Multimeter.

• Cleaning: Wipe the device with a dry, soft cloth. Do not use abrasive cleaners or solvents.
• Battery Replacement: Replace batteries promptly when the low battery indicator appears on the display. Refer to Section 4.1 for battery installation instructions.
• Storage: Store the multimeter in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.
• Test Leads: Regularly inspect test leads for any signs of wear, cuts, or damage. Replace them if necessary to ensure safe and accurate measurements.

8. Troubleshooting

If you encounter issues with your OWON B41T+ Digital Multimeter, refer to the following common problems and solutions:

9. Warranty and Support

For warranty information and technical support, please refer to the documentation included with your purchase or visit the official OWON website. If you require further assistance, contact OWON customer service through their designated support channels.