1. Introduction
The ANENG 683 is a 3 5/6 digital multimeter designed for stable performance and reliable quality. It features an LCD display with an analog bar, providing clear readings. This meter simplifies operation by automatically identifying and measuring AC/DC voltage and resistance, eliminating the need for manual dial selection. It is capable of measuring DC voltage, AC voltage (sine RMS), DC current, AC current (sine RMS), resistance, capacitance, live-line indication, duty cycle, diode on/off test, and includes features like symbol unit display, data hold, and automatic power off. Equipped with a high-capacity rechargeable battery, the ANENG 683 is an ideal tool for laboratories, factories, radio enthusiasts, and household use.

2. 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.
- Always ensure the multimeter is in the correct function and range before making measurements.
- Do not exceed the maximum input values for any range. The maximum voltage allowed between the measuring terminal and ground is 1000V DC or 750V AC.
- Use caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC, as these pose a shock hazard.
- Inspect test leads for damaged insulation or exposed metal before use. Replace damaged leads immediately.
- Do not use the meter if it appears damaged or if the case is open.
- Be extremely careful when making current measurements. Always connect the meter in series with the load. Never connect the meter in parallel with a voltage source when measuring current, as this will blow the fuse and can damage the instrument.
- Discharge capacitors before measuring capacitance.
- Do not operate the meter in explosive gas, vapor, or dusty environments.
- Remove test leads from the circuit before changing functions or ranges.
- Replace the battery when the low battery indicator appears to ensure accurate readings.
3. Product Overview
3.1 Key Features
- Intelligent Control Screen with VA color reverse display
- Smart Touch Screen for intuitive operation
- USB Rechargeable Lithium Battery (3.7V/2800mA)
- 6000 Counts Display
- Automatic Range and Manual Range selection
- Full Range Overload Protection
- Non-Contact Voltage (NCV) Induction
- Live Zero Line Recognition
- Flashlight Lighting for dark environments
- Data Retention (HOLD function)
- Automatic Power Off
- Low Battery Indication
- Durable ABS/Silicone material with silicone sheath
3.2 Components

The package typically includes:
- ANENG 683 Smart Multimeter Unit
- Test Leads (Watch Pen Cable)
- Temperature Line (Thermocouple)
- USB Charging Cable
- User Manual (this document)
- Storage Bag
- Packaging Box
3.3 Dimensions
The approximate dimensions of the multimeter are 150mm x 75mm x 24mm (Length x Width x Height).

4. Setup
4.1 Initial Charging
The ANENG 683 multimeter is powered by a built-in rechargeable lithium battery. Before first use, or if the low battery indicator is displayed, charge the device using the provided USB charging cable. Connect the USB cable to the multimeter's USB port and plug the other end into a standard USB power adapter (not included) or a computer USB port.

4.2 Connecting Test Leads
To prepare for measurements, connect the test leads to the multimeter:
- Insert the black test lead into the "COM" (Common) input jack.
- For most voltage, resistance, capacitance, frequency, diode, and temperature measurements, insert the red test lead into the "VΩmA" input jack.
- For current measurements (up to 10A), insert the red test lead into the "10A" input jack. For milliampere/microampere current measurements, insert the red test lead into the "mA A" input jack.
5. Operating Instructions
The ANENG 683 features an intelligent control screen and smart touch technology, allowing for automatic recognition of measurement types in many cases. The device supports both manual and auto-ranging modes.

5.1 AC/DC Voltage Measurement
In AUTO mode, the multimeter automatically recognizes AC or DC voltage. Connect the test leads in parallel to the circuit or component you wish to measure. For example, to measure household AC voltage (approx. 220V) or DC voltage from a regulator (approx. 30V).

5.2 Resistance Measurement
In AUTO mode, the multimeter automatically recognizes resistance. Ensure the circuit is de-energized before measuring resistance. Touch the stylus (test leads) to both sides of the resistor or component to measure its resistance.

5.3 Diode Measurement
Switch the multimeter to the diode test function. Touch the positive and negative poles of the diode with the test leads to check its functionality.

5.4 Capacitance Measurement
Before measuring capacitance, it is crucial to discharge the capacitor. This can be done by short-circuiting its two ends, for example, using a screwdriver with an insulated handle. Once discharged, switch the multimeter to the capacitance function and connect the test leads to the capacitor terminals.

5.5 AC/DC Current Measurement
IMPORTANT: Current measurements must always be made in series with the circuit. Never connect the multimeter in parallel with a voltage source when measuring current, as this will damage the instrument and blow the fuse.
To measure current, ensure the red test lead is plugged into the appropriate current input jack (e.g., "10A" or "mA A"). Break the circuit and insert the multimeter in series so that the current flows through the meter.


5.6 Live Zero Line Recognition
Switch the multimeter to the "Live" (zero-fire line) gear. Insert the red test lead into the socket hole. If it's the live wire (firewire), the flashlight will flash red, and an alarm sound will be emitted. If it's the neutral wire (zero line), there will be no red flashing or alarm sound.

5.7 NCV (Non-Contact Voltage) Induction
The NCV function allows for non-contact detection of AC voltage. Use the NCV sensor located on the top of the multimeter. The closer the sensor is to a power source, the more rapid the alarm will be, and the flashlight will flash red, indicating the presence of voltage.

5.8 Buzzer (Continuity Test)
The buzzer function provides an audible indication of continuity. When continuity is detected (e.g., a fuse is unobstructed), the multimeter will beep, and the flashlight may flash red.

5.9 Temperature Measurement
To measure temperature, switch the multimeter to the °C/°F temperature gear. Connect the provided temperature line (thermocouple) to the appropriate input jacks and place the probe in contact with the object whose temperature you wish to measure.

5.10 Flashlight Lighting
The built-in flashlight assists in illuminating measurement areas in dark environments, making night work or dimly lit spaces easier to navigate.

6. Specifications
The following tables detail the measurement ranges, resolutions, and accuracies for the ANENG 683 Smart Multimeter. Note that "d" or "digits" refers to the least significant digit of the display.
6.1 General Specifications
- Display: 6000 Counts LCD monitor with analog bar
- Operating Mode: Manual Range / Auto Range
- Battery Type: 3.7V/2800mA rechargeable lithium battery
- Fuse Protection: uA/mA
- Maximum Voltage (between terminal and ground): 1000V DC or 750V AC
- Operating Temperature: 0 - 40 ℃
- Material: ABS/Silicone
- Weight: Approximately 217g
- Dimensions: 150mm x 75mm x 24mm
6.2 Measurement Specifications
| Function | Range | Resolution | Accuracy |
|---|---|---|---|
| DC Voltage | 6V/60V | 0.001V/0.01V | ±(0.5% readings + 3 digits) |
| 600V/1000V | 0.1V/1.0V | ±(0.8% readings + 10 digits) | |
| AC Voltage | 6V/60V | 0.001V/0.01V | ±(0.8% readings + 3 digits) |
| 600V/750V | 0.1V/1.0V | ±(1.0% readings + 10 digits) | |
| DC Current | 6000mA | 1mA | ±(1.0% readings + 5 digits) |
| 10A | 0.01A | ±(2.5% readings + 10 digits) | |
| AC Current | 6000mA | 1mA | ±(1.0% readings + 5 digits) |
| 10A | 0.01A | ±(2.5% readings + 10 digits) | |
| Resistance | 600Ω/6kΩ/60kΩ/600kΩ | 0.1Ω/0.001kΩ/0.01kΩ/0.1kΩ | ±(0.8% readings + 3 digits) |
| 6MΩ | 0.001MΩ | ±(1.2% readings + 3 digits) | |
| 60MΩ | 0.01MΩ | ±(2.5% readings + 5 digits) | |
| Capacitance | 60nF/600nF/6uF/60uF/600uF/6mF | 0.01nF/0.1nF/0.001uF/0.01uF/0.1uF | ±(4.0% readings + 20 digits) |
| 60mF | 0.01mF | ±(5.0% readings + 5 digits) | |
| 100mF | 0.1mF | For reference only | |
| Frequency | 9.999Hz/99.99Hz/999.9Hz | 0.001Hz/0.01Hz/0.1Hz | ±(0.8% readings + 3 digits) |
| 9.999kHz/99.99kHz/999.9kHz | 0.001kHz/0.01kHz/0.1kHz | ±(0.8% readings + 3 digits) | |
| Temperature | -40℃ to 300℃ | 1℃ | ±(1.0% + 4 digits) |
| 301℃ to 1000℃ | 1℃ | ±(1.9% + 5 digits) | |
| -40°F to 600°F | 1°F | ±(1.2% + 6 digits) | |
| 601°F to 1832°F | 1°F | 1°F |
6.3 Additional Features
| Feature | Status | Feature | Status |
|---|---|---|---|
| Diode Test | Yes | Circuit on/off Test (Continuity) | Yes |
| Data Hold | Yes | Automatic Power Off | Yes |
| Torch (Flashlight) | Yes | NCV Test | Yes |
| Buzzer | Yes | Firing Line Test (Live Wire) | Yes |
Note: The above parameters are for reference only, and the actual measurement of the specific equipment shall prevail.
7. Maintenance
7.1 Cleaning
To maintain the accuracy and longevity of your multimeter, keep it clean. Wipe the case with a damp cloth and a mild detergent. Do not use abrasives or solvents. Ensure the device is powered off and test leads are disconnected before cleaning.
7.2 Battery Charging
The multimeter uses a rechargeable lithium battery. When the low battery indicator appears on the display, connect the device to a USB power source using the provided charging cable. Regular charging helps maintain battery health and ensures the meter is ready for use.
7.3 Storage
When not in use for extended periods, store the multimeter in its protective storage bag in a cool, dry place, away from direct sunlight and extreme temperatures. Disconnect test leads before storing.
8. Troubleshooting
If you encounter issues with your ANENG 683 multimeter, refer to the following common troubleshooting steps:
- No Display/Power On: Ensure the battery is charged. Connect the multimeter to a USB power source to charge it.
- Incorrect Readings:
- Check if the test leads are properly connected to the correct input jacks for the desired measurement.
- Verify that the multimeter is set to the appropriate function and range (if not in AUTO mode).
- Ensure the circuit or component being measured is properly connected and de-energized if required (e.g., for resistance or capacitance).
- Check for damaged test leads.
- Fuse Blown (for current measurements): If the multimeter does not measure current, the fuse might be blown due to incorrect connection (e.g., connecting in parallel to a voltage source). Fuse replacement should only be performed by qualified personnel.
- No NCV/Live Line Detection: Ensure the function is correctly selected and the sensor area is clear.
If the problem persists after following these steps, please contact customer support.
9. User Tips
While no specific user tips were available from reviews or Q&A, here are some general recommendations for using your multimeter effectively:
- Always start with the highest range when measuring an unknown voltage or current to prevent overloading the meter.
- For capacitance measurements, remember to fully discharge capacitors before connecting the multimeter to avoid damage to the meter or inaccurate readings.
- Utilize the flashlight feature in dimly lit areas to improve visibility and safety during measurements.
- The automatic recognition feature is convenient, but understanding manual ranges can be beneficial for specific diagnostic tasks.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official ANENG website. Keep your purchase receipt as proof of purchase.





