1. Introduction
The KAIWEETS Digital Multimeter KM100S is a versatile and reliable tool designed for various electrical testing needs. It provides accurate readings for AC and DC voltage, direct current, resistance, continuity, and diode, making it suitable for household, automotive, and industrial electrical issues.
What's in the Box:
- KAIWEETS Digital Multimeter KM100S
- Test Leads (Red and Black)
- User Manual
- 2 AAA Batteries (included)
2. Safety Information
Always adhere to safety precautions when using electrical testing equipment. This multimeter meets CAT III 600V safety standards and is equipped with double fuses (F400mA/250V and F10A/250V) for overload protection across all ranges.
- Do not attempt to measure voltages or currents exceeding the specified maximum limits.
- Ensure test leads are properly connected and in good condition before each use.
- Always select the correct measurement function and range before connecting the multimeter to a circuit.
- Exercise extreme caution when working with live electrical circuits.
- Do not use the multimeter if it appears damaged or is not operating correctly.
3. Product Overview
Familiarize yourself with the components of your KAIWEETS Digital Multimeter KM100S.
Key Features:
- Display: Large, backlit LCD for clear readings, even in low-light conditions.
- Function Dial: Rotary switch to select desired measurement mode.
- Input Jacks: Dedicated ports for test leads based on measurement type (VΩmA, COM, 10A).
- Kickstand: Foldable stand for hands-free operation and improved readability.
- Data Hold: Button to freeze the displayed reading.
- Low Battery Indicator: Icon on display to alert when batteries need replacement.
4. Setup
4.1 Battery Installation
The KM100S requires 2 AAA batteries (included). To install or replace batteries:
- Ensure the multimeter is turned OFF.
- Locate the battery compartment on the back of the unit.
- Use a small screwdriver to open the battery cover.
- Insert the 2 AAA batteries, observing correct polarity (+/-).
- Replace the battery cover and secure it with the screw.
4.2 Test Lead Connection
Connect the test leads to the appropriate input jacks based on the desired measurement:
- Always connect the black test lead to the COM (Common) jack.
- For voltage, resistance, continuity, diode, and capacitance measurements, connect the red test lead to the VΩmA jack.
- For direct current measurements up to 10A, connect the red test lead to the 10A jack.
Video 1: Official KAIWEETS KM100S Digital Multimeter overview, demonstrating setup and basic functions.
5. Operating Modes
Turn the function dial to select the desired measurement mode.
5.1 AC/DC Voltage Measurement
Use this mode to measure alternating current (AC) or direct current (DC) voltage. Connect the red lead to VΩmA and the black lead to COM.
5.2 DC Current Measurement
Measure direct current (DC) flowing through a circuit. Note: This multimeter cannot be used to measure AC current. Connect the red lead to the 10A jack (for up to 10A) or VΩmA (for milliamps/microamps) and the black lead to COM.
5.3 Resistance, Continuity, Diode, and Capacitance
The KM100S offers various modes for comprehensive electrical testing:
- Resistance (Ω): Measures the opposition to current flow in a circuit.
- Continuity (
): Checks for a complete circuit path with an audible beep. - Diode (
): Tests the functionality of diodes. - Capacitance: Measures the ability of a component to store an electrical charge.
5.4 Non-Contact Voltage (NCV)
The NCV function allows you to detect AC voltage without direct contact, providing an audible alert and visible display when voltage is present. This is useful for quickly identifying live wires.
6. Maintenance
6.1 Cleaning
Wipe the multimeter casing with a damp cloth. Do not use abrasive cleaners or solvents.
6.2 Fuse Replacement
The multimeter is protected by double fuses (F400mA/250V and F10A/250V). If the multimeter fails to function correctly, especially in current measurement modes, the fuses may need replacement. Refer to the battery installation section for instructions on opening the casing to access the fuses.
7. Troubleshooting
- No Display/Faint Display: Check battery installation and replace batteries if low.
- Incorrect Readings: Ensure the correct function is selected, test leads are properly connected, and leads are not damaged.
- No Continuity Beep: Verify the continuity mode is selected and the circuit is complete. Check fuses if current measurement is also affected.
8. Specifications
| Feature | Value |
|---|---|
| Product Dimensions | 6.1 x 3.82 x 1.65 inches |
| Item Weight | 9.6 Ounces |
| Item Model Number | KM100s |
| Batteries | 2 AAA batteries required (included) |
| Manufacturer | KAIWEETS |
| Country of Origin | China |
| Power Source | Battery Powered |
| Color | Black |
9. Warranty and Support
KAIWEETS provides a 36-month high-quality service and lifetime technical support for the KM100S Digital Multimeter. If you have any questions or require assistance while using the tool, please do not hesitate to contact KAIWEETS customer support.
For more information or support, visit the official KAIWEETS website or refer to the contact details provided in your product packaging.
