BSIDE S40 Mini Digital Multimeter User Manual

1. Introduction

The BSIDE S40 is a practical and high-precision 20000-count mini digital multimeter designed for various applications, including the photovoltaic industry, electronic maintenance, and educational purposes. It features a vibrant 2.8-inch HD LCD color screen and is powered by a built-in 1800mAh high-quality lithium battery, providing approximately 7 hours of continuous use on a full charge. Its compact, portable design, coupled with a durable silicone sheath, makes it an ideal tool for professionals and DIY enthusiasts alike.

2. Package Contents

Upon opening your BSIDE S40 Mini Digital Multimeter package, please verify that all the following items are included:

• 1 x S40 Mini Digital Multimeter
• 1 x Type K Thermocouple (Gift)
• 1 x Quality Test Probe Set (Red and Black)
• 1 x Quality EVA Carrying Bag
• 1 x Type-C Charging Cable
• 1 x Certificate of Conformity (12 months warranty)
• 1 x User Manual
• 1 x Color Box

3. Product Overview

The BSIDE S40 is designed for ease of use and durability. Below is a description of its key components and features:

3.1 Key Features

• Portable Mini Design: Compact and lightweight, shorter than a smartphone, making it easy to carry.
• Automatic Power Off: Configurable auto-shutdown for energy saving.
• Long-lasting Battery: Built-in 1800mAh rechargeable lithium battery.
• Silicone Protection: Four-sided silicone leather case for shock-absorbing and fall-resistant protection.
• 20000 Counts: High-precision measurements with 20000 display counts.
• Temperature Switching: Supports temperature measurement with Type K thermocouple.
• Adjustable Desktop Stand: Integrated stand for convenient hands-free operation.
• Self-Regulation: Auto-ranging functionality for simplified measurements.
• Full-View Color Screen: 2.8-inch HD TFT color display for clear readings.

3.2 Controls and Ports

4. Specifications

4.1 Display Technical Indicators

• Display Screen: 2.8" TFT color screen
• Resolution: 320 x 240 pixels
• Data Statistics: Yes (MAX, MIN, AVG)
• Backlight Brightness: Adjustable
• Low Battery Warning: Yes
• Automatic Shutdown: Yes (Configurable)

4.2 Mechanical Technical Index

• Dimensions: 108.0 x 69.5 x 33.0 mm
• Weight: 162g (Battery included)
• Battery Type: 1800mAh Lithium battery

4.3 Environmental Technical Index

• Working Environment Temperature: 0~40℃
• Working Environment Humidness: <75%
• Storage Environment Temperature: -20~60℃
• Storage Environment Humidness: <80%

4.4 Multimeter Technical Specifications

4.5 Certifications

• CE
• FCC
• RoHS

5. Setup

5.1 Initial Charging

Before first use, it is recommended to fully charge the multimeter. Connect the provided Type-C charging cable to the USB interface (9) on the multimeter and to a standard DC 5V output adapter. The battery indicator on the display will show charging status.

5.2 Connecting Test Probes

For most measurements, connect the test probes as follows:

• Insert the black test lead into the COM port (8).
• Insert the red test lead into the INPUT port (7).

5.3 Using the Desktop Stand

The multimeter features an integrated adjustable desktop stand. Pull out the stand from the back of the device to position it at a comfortable viewing angle for hands-free operation.

6. Operating Instructions

6.1 Power On/Off

• To Power On: Long press the Power Button (1).
• To Power Off: Long press the Power Button (1).

6.2 Automatic Range (Auto Range)

The BSIDE S40 operates in auto-range mode, automatically selecting the appropriate measurement range for the detected input. This simplifies operation by eliminating the need for manual range selection.

6.3 AC/DC Voltage Measurement

To measure voltage:

1. Ensure test probes are correctly inserted (black to COM, red to INPUT).
2. Short press the V~ / V= Button (2) to cycle between AC and DC voltage modes.
3. Connect the test probes in parallel to the circuit or component you wish to measure.
4. Read the voltage value on the display screen (6).

6.4 Resistance Measurement

To measure resistance:

1. Ensure test probes are correctly inserted.
2. Short press the Ω / ⟘ / ⟛ / F Button (3) until the resistance symbol (Ω) is displayed.
3. Ensure the circuit is de-energized. Connect the test probes across the component.
4. Read the resistance value on the display.

6.5 Diode Measurement

To test diodes:

1. Ensure test probes are correctly inserted.
2. Short press the Ω / ⟘ / ⟛ / F Button (3) until the diode symbol (⟘) is displayed.
3. Connect the red probe to the anode and the black probe to the cathode of the diode.
4. Observe the forward voltage drop. Reverse the probes; an open circuit reading indicates a good diode.

6.6 Capacitance Measurement

To measure capacitance:

1. Ensure test probes are correctly inserted.
2. Short press the Ω / ⟘ / ⟛ / F Button (3) until the capacitance symbol (F) is displayed.
3. Ensure the capacitor is fully discharged before connecting the probes.
4. Connect the test probes across the capacitor.
5. Read the capacitance value on the display.

6.7 Continuity Test

To perform a continuity test:

1. Ensure test probes are correctly inserted.
2. Short press the Ω / ⟘ / ⟛ / F Button (3) until the continuity symbol (⟛) is displayed.
3. Ensure the circuit is de-energized. Connect the test probes across the component or wire.
4. A continuous beep indicates continuity (low resistance).

6.8 Temperature Measurement

To measure temperature:

1. Connect the Type K thermocouple to the INPUT and COM ports, observing polarity if applicable.
2. Use the Function Wheel (5) to navigate to the temperature measurement mode.
3. Place the thermocouple tip at the point where temperature needs to be measured.
4. Read the temperature value on the display.

6.9 Peak Value Mode

Long press the V~ / V= Button (2) or mV~ / mV= Button (4) while in AC voltage or AC millivolt mode to activate peak value measurement. This feature captures and displays the maximum and minimum peak values, useful for analyzing transient signals.

6.10 Data Statistics (MAX/MIN/AVG)

The multimeter automatically calculates and displays MAX, MIN, and AVG values during continuous measurement. Short press the Power Button (1) to stop/recalculate these values.

7. Maintenance

7.1 Cleaning

To clean the multimeter, gently wipe the surface with a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the casing or display.

7.2 Battery Charging

The built-in 1800mAh lithium battery is rechargeable via the Type-C USB port. When the low battery warning appears, connect the multimeter to a 5V DC power source using the provided Type-C cable. A full charge provides approximately 7 hours of operation.

7.3 Storage

When not in use, store the multimeter in its provided EVA carrying bag to protect it from dust, moisture, and physical damage. Store in an environment with a temperature range of -20~60℃ and humidness below 80%.

7.4 Automatic Shutdown

The multimeter features an automatic shutdown function to conserve battery life. You can configure the shutdown time (1, 10, 30, 60 minutes) or disable it entirely through the device settings. The default automatic shutdown time without operation is 10 minutes.

8. Troubleshooting

If you encounter issues with your BSIDE S40 Mini Digital Multimeter, please refer to the following common troubleshooting steps:

• No Display/Unit Not Turning On:
  • Check if the battery is charged. Connect the Type-C charging cable and allow it to charge for a period.
  • Ensure the power button is pressed and held for a sufficient duration (long press) to turn the unit on.
• Incorrect or Unstable Readings:
  • Verify that the test probes are securely inserted into the correct INPUT and COM ports.
  • Ensure the correct measurement mode is selected for the task (e.g., AC for AC voltage, DC for DC voltage).
  • Confirm that the circuit or component being tested is properly isolated or de-energized if required for the measurement type (e.g., resistance, capacitance, continuity).
  • Check for damaged or worn test leads. Replace if necessary.
• Continuity Test Not Beeping:
  • Ensure the multimeter is in continuity mode (⟛).
  • Verify that the circuit or component is de-energized.
  • Check the test leads for breaks or poor connections.
• Display Freezes or Becomes Unresponsive:
  • Try turning the multimeter off and then on again.
  • If the issue persists, allow the battery to fully discharge and then recharge it.

9. User Tips

Maximize your experience with the BSIDE S40 Mini Digital Multimeter with these helpful tips:

• Utilize the Adjustable Stand: For prolonged testing or when you need both hands free, deploy the integrated desktop stand for optimal viewing and stability.
• Monitor Data Statistics: The MAX, MIN, and AVG functions are invaluable for capturing transient events or observing fluctuations in readings over time. Use them to analyze circuit behavior more effectively.
• Keep it Charged: The 1800mAh battery offers good runtime, but regular charging via the convenient Type-C port ensures your multimeter is always ready for use.
• Leverage Portability: Its compact size and durable silicone case make it perfect for on-the-go tasks. Keep it in your toolkit or pocket for quick diagnostics.
• Explore All Measurement Modes: Don't hesitate to experiment with all the available measurement modes (voltage, resistance, capacitance, diode, continuity, temperature) to fully understand its versatility for various electronic and electrical tasks.

10. Warranty and Support

10.1 Warranty Information

The BSIDE S40 Mini Digital Multimeter comes with a 12-month warranty from the date of purchase, as indicated on the Certificate of Conformity included in your package. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.

10.2 Technical Support

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact the BSIDE Official Store directly. Refer to the contact information provided with your purchase or visit the official BSIDE website for support resources.