ANENG 683 Smart Multimeter User Manual

1. Introduction

The ANENG 683 Smart Multimeter is a 3 5/6 digital multimeter designed for stable performance and reliable quality. It features an LCD display screen with an analog bar, allowing users to perform continuous power operations without needing to turn a dial to select functions. The meter automatically identifies and measures AC/DC voltage and resistance based on the input signal.

It can measure DC voltage, AC voltage (sine RMS), DC current, AC current (sine RMS), resistance, capacitance, live-line indication, duty ratio, diode on/off test, symbol unit data hold, and automatic power off. Equipped with a high-performance MCU processor and high-capacity rechargeable batteries, it offers full functionality and accurate measurements, making it an ideal tool for laboratories, factories, radio enthusiasts, and households.

The ANENG 681 model features a large LCD screen, while the ANENG 683 model boasts a large touch screen for enhanced user interaction.

2. Safety Information

▲ Warning: Pay attention that wrong operations may cause electric shock or damage to the meter. Please follow the normal safety regulations and user manual when using this product.

To take full advantage of the functions and ensure safety, please read the instructions in this manual carefully.

2.1 General Safety Rules

• Always observe general anti-shock protection measures.
• Avoid misuse of the meter.
• After receiving the meter, inspect it for any damage incurred during transit.
• If stored under rough conditions or after shipment, re-check the product for damage.
• Ensure probe pens are in good condition. Before use, check for damaged insulation or exposed wires.
• Use only original or equivalent (same type/grade) probe pens to ensure safety.
• Do not use the meter near explosive gases, vapors, or dust.
• Discontinue use immediately if there is any abnormal or faulty performance.
• Ensure the instrument case and battery cover are fully fastened before use.
• Do not store or use the meter in direct sunlight, or in hot or humid conditions.

2.2 Measurement Precautions

• When using the meter, ensure the correct functions and measuring ranges are selected.
• Do not exceed the specified protection measuring range.
• Do not touch the metal parts of the test leads while the meter is connected to the measurement circuit.
• During measurement, keep fingers behind the stylus guard if the measured voltage exceeds 60V DC or 30V AC (RMS).
• Do not measure voltage if the voltage between the measuring terminal and ground exceeds 1000V DC and 750V AC.
• Before changing the measurement function, remove the test leads from the circuit under test.
• Do not measure resistors, capacitors, or diodes when they are charged.
• Avoid connecting the instrument to voltage power when measuring current, resistance, or capacitance.
• Discharge capacitors fully before measuring capacitance.
• For current measurements, do not attempt to measure on a circuit where the voltage between the open circuit voltage and ground exceeds 250V. A blown fuse during measurement may damage the meter or cause injury.
• Check the meter's fuse before making current measurements. Use correct input sockets, function gears, and measuring range.
• When the test pen is inserted into the current input socket, do not connect the other end of the test pen to any circuit in parallel.
• For diode tests, all power to the circuit under test should be cut off and all high voltage capacitors fully discharged before measuring.
• For temperature measurements, do not enter a temperature higher than 60V AC or 30V AC voltage to avoid damage.

2.3 Safety Symbols

• ▲ Warning: Indicates an important safety symbol. Refer to the Operation Manual before operating.
• 4: Can be used on hazardous live conductors.
• Π: Double insulation protection (class II).
• CAT III: Overvoltage (installation) class III in accordance with IEC-61010-1. Pollution degree 2 refers to the level of impulse withstand voltage protection provided.
• CE: Complies with the European Union (EU) standard.
• ⏚: Ground.

3. Product Overview

The ANENG 683 Smart Multimeter is designed for ease of use and versatility. Below is an overview of its components and key features.

3.1 Components

Figure 1: ANENG 683 Smart Multimeter with VC1010 pen and accessories.

1. NCV Zone
2. Power button
3. LCD Display
4. Input jack
5. Torch and function indicator

Figure 2: ANENG 683 Multimeter dimensions (76mm width, 25mm thickness, 152mm height).

3.2 Key Features

Figure 3: Visual representation of key features.

• Smart touch screen
• USB lithium battery powered
• Diode measurement
• Capacitance measurement
• NCV voltage sensing
• Buzzer measurement
• Flashlight lighting
• Resistance measurement
• Temperature measurement
• AC/DC voltage measurement
• AC/DC current measurement
• Automatic shutdown
• Low battery indication
• Data Hold
• Live Wire Recognition
• Hertz frequency measurement
• Data retention
• Zero Wire Recognition

4. Specifications

The ANENG 683 Smart Multimeter is designed for precision and reliability. The meter should be re-calibrated annually at 18°C ~ 28°C with relative humidity less than 75%.

4.1 General Specifications

• Operating Mode: Manual Range
• Display Type: Digital Display (6000 Counts LCD monitor with analog bar)
• Battery: 3.7V/2800mA rechargeable lithium battery (included)
• Dimensions: 150mm (L) × 75mm (W) × 24mm (H)
• Weight: Approximately 217g (for 683 model)
• Operating Temperature: 0 - 40 ℃
• Storage Temperature: -10 ℃ ~ 50 ℃
• Over-range Display: 'OL' or '-0L'
• Sampling Time: About 3 times / second
• Unit Display: Function, power unit display
• Automatic Power Off: Approximately 15 minutes when no signal (can be canceled by pressing 'SEL' during power-on)
• Temperature Coefficient: Less than 0.1 × accuracy / °C
• Working Height: Max 2000m
• Maximum Display Value: 5999 digits
• Polarity Indication: Automatic indication, '-' indicates negative polarity
• Fuse Protection: uA/mA Gear fuse: FF630mA/250V; A Gear fuse: FF20A/250V
• Material: ABS/Silicone
• Safety Level: CE CAT.II-1000V/CATIV-600V (for VC1010 pen)

4.2 Detailed Measurement Ranges (ANENG 683)

Figure 4: ANENG 683 Functional Parameters.

4.3 Detailed Measurement Ranges (ANENG 681)

Figure 5: ANENG 681 Functional Parameters.

4.4 VC1010 AC Voltage Detector Specifications

Figure 6: VC1010 AC Voltage Detector Technical Specifications.

5. Setup and Initial Use

5.1 Unboxing and Contents

Upon opening the package, you should find the following items:

Figure 7: Included accessories.

• ANENG 683 Smart Multimeter
• Temperature Line (probe)
• Watch Pen Cable (test leads)
• Charging Cable (USB Type-C)
• User Manual
• Storage Bag
• Packaging Box

5.2 Charging the Multimeter

The ANENG 683 Multimeter is powered by a rechargeable lithium battery. Use the provided USB Type-C charging cable.

Figure 8: USB charging connection.

1. Connect the USB charging cable to the multimeter's USB port.
2. Plug the other end of the USB cable into a suitable USB power adapter (not included).
3. A red light indicates charging. A green light indicates the battery is fully charged.

5.3 VC1010 AC Voltage Detector Battery Installation

The VC1010 AC Voltage Detector requires 2 AAA 1.5V batteries.

Figure 9: Steps for VC1010 battery installation.

1. Press the position of the red square block on the pen.
2. While holding down, push the cover upwards to install 2 AAA batteries.

6. Operation Instructions

6.1 Power On/Off and Function Selection

• Power Button: Press and hold for more than 3 seconds to turn the multimeter on or off.
• Selection Button: Press to manually select functions.
• Capacitance Button: Short press once to enter capacitance mode. Press again to cycle back to auto mode.

6.2 Data Hold and Flashlight

• Function Keep and Torch Button:
  • Single press: Holds the current data reading. Press again to clear the data hold.
  • Long press (more than 3 seconds): Turns on the flashlight. Press again to turn off the flashlight. The flashlight does not turn off automatically.

6.3 Automatic Power Off

If there is no operation for 15 minutes after power-on, the meter will automatically shut down to save power. One minute before shutdown, the buzzer will sound 5 prompts. To cancel the auto power off function, press the 'SEL' key while powering on.

6.4 Buzzer Function

When any key is pressed or the function switch is turned on, the buzzer will beep (approx. 0.25 seconds) if the function is active. If the measured voltage or current exceeds the set alarm value (e.g., AC voltage > 750V, DC voltage > 1000V), the buzzer will continuously sound as an over-range warning. The buzzer will also emit 5 sounds about 1 minute before auto-off and a long sound when auto-off is canceled.

6.5 AC/DC Voltage and Resistance Measurement

Figure 10: Examples of various measurements.

1. Connect the black test lead to the COM input socket and the red test lead to the input voltage/resistance/Circuit On/Off jack.
2. Connect the other end of the leads to the power supply or resistance of the circuit to be tested. Ensure reliable contact.
3. The meter will automatically judge AC voltage, DC voltage, or resistance and display the polarity for DC voltage.
4. If the measuring voltage is greater than about 0.8V, the instrument will compare the DC and AC components and display the larger value. The measured value is displayed on the LCD.
5. If the measured resistance is less than about 50Ω, the built-in buzzer sounds.

6.6 AC/DC Current Measurement

Figure 11: Correct wiring for AC current measurement (series connection).

Important: AC and DC current measurements require series connection to the circuit. Do not directly contact measuring current like measuring voltage; direct contact will burn out the instrument!

1. Connect the black test lead to the COM input socket and the red test lead to the current input socket.
2. The meter can identify AC or DC current automatically.
3. Disconnect the circuit under test. Connect the black test lead to the disconnected (lower voltage) end of the circuit, and connect the red test lead to the other end of the disconnected circuit (which has a higher voltage).
4. Connect the circuit power, and then read the displayed readings. If the display shows "OL", the input exceeds 10A.

6.7 Diode Test

1. Insert the red and black test leads into the COM jack.
2. Connect the red test lead to the diode anode and the black test lead to the diode cathode for testing.
3. The meter shows the approximate forward voltage drop of the diode. If the polarity is reversed, the meter will display "OL."
4. In a circuit, a normal diode should produce a forward voltage drop of 0.5V to 0.8V.

6.8 Capacitance Measurement

Important: Fully discharge all high-voltage capacitors before measuring capacitance.

1. Insert the red and black test leads into the input jack.
2. Press the "SEL" button to enter capacitance test mode.
3. After the capacitor is completely discharged, connect the red and black pens to both ends of the capacitor to be measured. The LCD will display the measured capacitance value.

Note:

• For measurements below 10nF, subtract the distribution capacitance of the meter and leads for improved accuracy.
• Measuring large capacitance may take some time for a stable reading.
• When measuring polar capacitors, observe polarity to avoid damaging the instrument.

6.9 Temperature Measurement

1. Press and hold the power key for 3 seconds, then press 'SEL' to enter Temperature Measurement mode. Select Celsius or Fahrenheit as required.
2. Connect the negative terminal (black) and positive terminal (red) of the K-type thermocouple to the COM jack and input jack separately.
3. Place the other end of the thermocouple (test side) close to the surface of the object to be measured.
4. The liquid crystal display will show the measured temperature value.

Note: K-type thermocouple distribution has a highest measurement temperature of 250°C.

6.10 Frequency Test

1. Insert the red and black test leads into the input jack.
2. Press the "SEL" button to enter frequency test mode.
3. Connect the other ends of the red and black watch pens to both ends of the signal source or load for measurement.
4. The measured frequency value is read from the LCD.

6.11 Firing Line and NCV Test (VC1010 Pen)

Figure 12: NCV induction sensing.

Figure 13: Live Zero Fire Line detection.

1. Press and hold the power button for more than 3 seconds, then press 'SEL' button to enter electroprobe test mode.
2. NCV (Non-Contact Voltage) Test: Bring the non-contact voltage zone of the instrument close to the live line of AC voltage (less than 5mm). When a weak signal is detected, the display will show "--L" and the red indicator light will light up. As the signal increases, the display will show "--H", and the red indicator light will be brighter. The closer to the AC voltage line, the higher frequency alarm sound from the buzzer.
3. Live Wire Recognition: Press 'SEL' button to switch to the Live characters on the display. Place the red test lead (ensure the black test lead is pulled out) close to the fire test points. If the test point is a live wire, the display will show "--H", the red light will be on, and the buzzer will give a high-frequency alarm sound. If it's a neutral line, there will be no buzzer sound and the pen tip will not flicker.

   Note: Stylus detection can be influenced by socket design, insulation thickness, and other factors. Voltage may still exist even without indication. Do not rely solely on stylus detection to determine if a shielded line has voltage. External interference sources (like flashlights or motors) may trigger the probe by mistake.

6.12 Video Demonstration

Product demonstration video showing unboxing, charging, and various measurement functions.

7. Maintenance

7.1 Battery Charging

The multimeter is powered by a rechargeable battery. It needs to be charged in time to avoid running out of power. Refer to the charging method described in Section 5.2.

7.2 Probe Replacement

▲ Warning: When changing the test leads, the same or equivalent test lead must be replaced. The pen must be in good condition, with a level of 1000V 10A.

If the pen insulation is damaged, such as exposed wire, you must replace the pen immediately to prevent electric shock or personal injury.

8. Troubleshooting

• Meter not turning on: Ensure the battery is charged. Connect the USB charging cable and check if the red indicator light turns on.
• "OL" displayed: This indicates that the input value exceeds the measurement range. Check your connections and selected function/range. For current measurements, it specifically means the input exceeds 10A.
• Inaccurate readings: Ensure test leads are properly connected and in good condition. Verify the correct function and range are selected for the measurement. For capacitance, ensure the capacitor is fully discharged.
• No buzzer sound: Check if the function requiring a buzzer is active. If auto power off is enabled, the buzzer will sound before shutdown.
• VC1010 pen not detecting voltage: Check if batteries are correctly installed and have sufficient charge. Ensure the pen is in high sensitivity mode if needed (press 'S' key).
• Abnormal performance: If the meter exhibits any abnormal or faulty performance, stop using it immediately and contact support.

9. User Tips

• Always double-check your connections before taking any measurements, especially when dealing with live circuits.
• Utilize the data hold function (single press Function Keep button) to easily record readings in difficult-to-view situations.
• The built-in flashlight (long press Function Keep button) is very useful for working in dimly lit areas.
• Remember to fully discharge capacitors before measuring their capacitance to prevent damage to the meter and ensure accurate readings.
• For the VC1010 pen, adjust sensitivity (S button) based on the environment to avoid false positives or missed detections.

10. Warranty and Support

The contents of this manual are subject to change without notice. While every effort has been made to ensure accuracy, please contact the manufacturer if you find any errors or omissions.

The company is not responsible for accidents or hazards caused by user's wrong operations. The functions described in this manual do not justify the use of the product for special purposes.

10.1 Appendix

• Probes: Grade: 1000V 10A, 1 pair
• User Manual: 1 pc
• Temperature probe: 1 pair