CHIWENTHAG Aneng M113 Mini Digital Multimeter User Manual

1. Important Safety Information

Please read and understand all safety information before operating this multimeter. Failure to follow these instructions may result in electric shock, fire, or damage to the meter or the equipment under test.

• Do not exceed the maximum input values specified for each measurement range.
• Ensure test leads are properly connected to the correct input jacks for the desired measurement.
• Do not operate the meter if it appears damaged or if the test leads are damaged.
• Exercise extreme caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. These voltages pose a shock hazard.
• Always disconnect power to the circuit and discharge all high-voltage capacitors before measuring resistance or continuity.
• Replace batteries when the low battery indicator appears to ensure accurate readings.
• This device is designed for indoor use and for measurement category CAT II 600V.

2. Product Overview

The Aneng M113 is a compact digital multimeter designed for basic electrical measurements. It features a 1999-count display and includes functions for AC/DC voltage, resistance, and Non-Contact Voltage (NCV) detection.

2.1 Features

• 1999 Counts Digital Display for clear readings.
• Automatic range selection for ease of use.
• Measures AC and DC Voltage up to 600V.
• Measures Resistance up to 10MΩ.
• Non-Contact Voltage (NCV) detection for identifying live wires without direct contact.
• Auto Power Off function to conserve battery life.
• Compact and portable design.

2.2 Components

Familiarize yourself with the main components of your Aneng M113 multimeter:

Image: Front view of the Aneng M113 Mini Digital Multimeter, showing the LCD display, function buttons (NCV, H, Power), and input jacks (COM, INPUT).

• LCD Display: Shows measurement readings, units, and function indicators.
• Function Buttons: Includes NCV (Non-Contact Voltage), H (Data Hold), and Power On/Off.
• Input Jacks:
• COM (Common) Jack: For the black test lead.
• INPUT Jack: For the red test lead for voltage, resistance, and NCV measurements.
• Test Leads: Red and black leads for connecting to circuits.

3. Setup and Initial Use

3.1 Battery Installation

The Aneng M113 multimeter requires batteries for operation. Follow these steps to install or replace them:

1. Ensure the multimeter is powered off and disconnect any test leads from the input jacks.
2. Locate the battery compartment cover on the back of the meter.
3. Use a screwdriver to loosen the screw(s) securing the battery cover.
4. Remove the cover.
5. Insert the required batteries (typically AAA or 9V, refer to the compartment markings) observing the correct polarity (+ and -).
6. Replace the battery cover and tighten the screw(s).

3.2 Powering On/Off

To power on the multimeter, press and hold the Power button (usually marked with a circle and a vertical line) until the display illuminates. To power off, press and hold the same button until the display turns off. The meter also features an auto power-off function to save battery life after a period of inactivity.

4. Operating Instructions

Before making any measurements, ensure the test leads are in good condition and properly connected.

4.1 AC/DC Voltage Measurement

To measure AC or DC voltage:

1. Insert the black test lead into the COM jack.
2. Insert the red test lead into the INPUT jack.
3. Power on the multimeter. The meter will automatically enter voltage measurement mode (AC/DC auto-ranging).
4. Connect the test probes in parallel to the circuit or component you wish to measure.
5. Read the voltage value on the LCD display. The meter will automatically detect AC or DC voltage.

4.2 Resistance Measurement

To measure resistance:

1. Ensure the circuit or component is completely de-energized before measuring resistance.
2. Insert the black test lead into the COM jack.
3. Insert the red test lead into the INPUT jack.
4. Power on the multimeter. The meter will automatically enter resistance measurement mode.
5. Connect the test probes across the component whose resistance you want to measure.
6. Read the resistance value on the LCD display.

4.3 NCV (Non-Contact Voltage) Detection

The NCV function allows you to detect the presence of AC voltage without direct contact with the conductor.

1. Power on the multimeter.
2. Press the NCV button. The NCV indicator will appear on the display.
3. Bring the top front part of the multimeter (where the NCV sensor is located) close to the conductor or outlet you want to test.
4. If AC voltage is detected, the meter will emit an audible beep and/or the NCV indicator light will flash, with the frequency increasing as the voltage strength increases.

4.4 Data Hold Function

To hold the current reading on the display, press the H button during a measurement. Press it again to release the hold function.

5. Maintenance

5.1 Battery Replacement

Refer to section 3.1 for detailed instructions on battery installation and replacement.

5.2 Cleaning

To clean the multimeter:

• Ensure the meter is powered off and all test leads are disconnected.
• Wipe the case with a damp cloth and a mild detergent. Do not use abrasives or solvents.
• Ensure the meter is completely dry before use.

5.3 Storage

When not in use for an extended period, remove the batteries to prevent leakage and store the multimeter in a cool, dry place away from direct sunlight.

6. Troubleshooting

• No Display: Check battery installation and ensure batteries are not depleted. Replace if necessary.
• Incorrect Readings: Ensure test leads are correctly inserted into the appropriate jacks. Verify the circuit is properly connected. Check battery level.
• Meter Does Not Respond: Try powering off and on again. If the issue persists, replace batteries.
• NCV Not Detecting: Ensure the NCV button is pressed and the sensor is brought close enough to the AC voltage source.

7. Technical Specifications

8. Warranty and Customer Support

This product comes with a standard manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or contact CHIWENTHAG customer support.

If you encounter any issues or have questions regarding the operation or maintenance of your Aneng M113 Mini Digital Multimeter, please contact our customer support team for assistance. Contact information can typically be found on the product packaging or the seller's website.