ANENG A3005 Digital Professional Multimeter Pen Tester

1. Introduction

The ANENG A3005 is a compact, pen-type digital multimeter featuring a 3 3/4 bit true RMS automatic scanning digital instrument. It is designed for ease of use, automatically identifying voltage and resistance measurements without requiring manual function selection. This device offers stable performance, high precision, and reliability, with clear readings on its large LCD display, enhanced by a beautiful backlight for convenience in various lighting conditions. Powered by AAA 1.5V batteries, it also includes functions for electric field induction and live wire discrimination, making it an ideal tool for both professionals and hobbyists.

2. Safety Requirements and Precautions

This digital multimeter is designed and manufactured according to the IEC1010 safety standard for electronic measuring instruments, specifically for handheld current pincer meters. It strictly adheres to double insulation DC 600V CAT III and pollution level 2 safety standards.

General Precautions:

• Always read this manual carefully before using the instrument, paying close attention to all warning content.
• Before each use, inspect the instrument and test pen for any damage or abnormal phenomena.
• When measuring, do not touch any input terminals that are not in use.
• Do not measure voltages exceeding the allowed input value. Higher voltages may be displayed, but this risks damaging the internal wiring of the meter.
• Do not expose the meter to direct sunlight, high temperatures, or excessive humidity.
• In case of a crash or malfunction during use, immediately turn off the power and restart the device. If abnormalities persist, discontinue use and seek professional maintenance.
• For cleaning, use only a damp cloth with a small amount of mild detergent. Do not use chemical solvents or abrasive cleaners.
• If any abnormality is observed, the instrument should be stopped immediately and sent for maintenance.
• Only trained personnel should perform checks and repairs.

3. Product Features

The ANENG A3005 Multimeter Pen Tester offers a range of intelligent features for efficient and safe electrical measurements:

• Automatic Measuring Range: Simplifies operation by automatically detecting the measurement type (voltage, resistance).
• LCD Display: 4000 count backlit display for clear readings in various lighting conditions.
• 600V Input Protection: Ensures safety against overvoltage.
• Automatic Shutdown: Conserves battery life by turning off after 15 minutes of inactivity.
• NCV (Non-Contact Voltage Detection) Function: Detects AC voltage without direct contact.
• Flashlight Function: Integrated flashlight for illuminating dark work areas.
• Data HOLD Function: Freezes the current reading on the display for easy recording.
• Process Display: Displays "OL" for overload conditions.
• Low Battery Display: Indicates when batteries need replacement.
• Live Zero Line Detection: Identifies live and neutral wires.
• Buzzer: Provides audible indication for continuity and live line detection.
• Diode Test: Measures the forward voltage drop of diodes.
• Resistance Measurement: Measures resistance up to 40MΩ.

4. Product Components

Familiarize yourself with the different parts of your ANENG A3005 Multimeter Pen Tester:

• Probe Socket: Connection point for the negative test lead.
• Penholder: For convenient carrying and storage.
• Power Switch Button: Single press for data retention, long press to turn on backlight.
• NCV/LIVE/AUTO Switch Button: Single press to cycle through NCV, LIVE, and AUTO modes; long press for flashlight switch.
• Indicator Light: Provides visual feedback for various functions (e.g., NCV, Live Line).
• Backlit Display: Digital screen showing measurement readings.
• Flashlight: Illuminates the test area.
• Pen Tip Test Positive: The main probe for measurements.
• Silica Shell / Pen Tip Protective Case: Protects the pen tip when not in use.

5. Setup

Battery Installation

The ANENG A3005 uses two No. 7 (AAA) batteries. When the low battery indicator appears on the display, replace the batteries immediately to ensure accurate measurements and proper device function.

To replace batteries:

1. Ensure the pen is disconnected from any test circuits.
2. Pull out the pen from the input jack.
3. Unscrew the battery cover using a screwdriver and remove the cover.
4. Remove the old batteries and insert new AAA batteries, observing correct polarity.
5. Replace the battery cover and tighten the screws securely.

6. Operating Modes

The ANENG A3005 features automatic measurement identification, but also allows for manual selection of certain functions.

General Operation Steps:

1. Long press the power button (marked with a power symbol) for more than 2 seconds to turn on the instrument. The display will show "Auto".
2. Insert the black test pen into the COM jack of the pen cap.
3. Connect the instrument nib (positive) and black pen (negative) to the circuit or load to be tested.
4. Read the measurement result from the monitor.

Specific Measurement Functions:

DC Voltage Test (DCV)

• After general operation steps, the instrument will automatically detect DC voltage.
• The polarity of the nib will be displayed on the screen.
• If "---" is displayed on the right of the monitor, DC voltage is being measured.
• The measured voltage must be greater than 0.8V.

AC Voltage Test (ACV)

• After general operation steps, the instrument will automatically detect AC voltage.
• If the symbol "~" is displayed on the right of the monitor, AC voltage is being measured.
• The measured voltage must be greater than 0.8V.

Resistance Test (Ω)

• After general operation steps, the instrument will automatically detect resistance.
• If the symbol "Ω" is displayed on the right of the monitor, resistance is being measured.
• If the measured resistance exceeds the maximum range, the display will show "OL".
• Important: When checking in-line resistance, ensure all power supplies in the circuit are turned off and all capacitors are fully discharged.

Continuity Test (•)))

• After turning on the system, insert the black test pen into the COM jack.
• Connect the instrument nib and black pen to two points of the circuit.
• If the resistance between the two points is below approximately 50 Ω, the built-in buzzer will sound, and a "•)))" symbol will appear on the right side of the display.

Diode Test

• After turning on the system, the instrument displays "Auto". Short press the NCV/LIVE/AUTO switch button to select Diode mode. "OL V" will appear.
• Insert the black test pen into the COM jack.
• Connect the tip of the instrument to the positive electrode of the diode, and the black pen to the negative electrode.
• The instrument will display the positive voltage drop of the diode (unit: V). "OL" is displayed if the diode is reversed.

NCV (Non-Contact Voltage) Test

• Long press the power button to turn on. The instrument displays "Auto".
• Insert the black test pen into the COM jack.
• Press the NCV/LIVE/AUTO switch button to select NCV mode. "EF" will be displayed on the screen.
• Place the instrument nib approximately 8-15mm close to the measured object for induction detection.
• The simulated amount of induced AC voltage is indicated by the display and buzzer. If the critical voltage is ≤ 100V, "EF" is displayed. If the critical voltage is < 100V, "---" is displayed in the transverse section. The number of sections (----) and the rhythm of the buzzer sound and light indication will vary with the intensity of the induced electric field.
• Note: When switching to NCV measurement, always unplug the black test pen to avoid electric shock.

Live Line Identification

• Long press the power button to turn on. The instrument displays "Auto".
• Press the NCV/LIVE/AUTO switch button to select LIVE measurement. "LIVE" will be displayed on the right of the screen.
• When the instrument nib is connected to a live wire, the buzzer will emit a ticking sound, the red LED light will turn on, and the LCD screen will display "---H".
• If the pen is connected to a neutral (zero) line, the buzzer will not sound, and the LCD will display "LIVE".
• Note: Do not touch the metal part of the test pen during measurement to avoid electric shock.

Line Breakpoint Detection

• In NCV detection mode, check for breakpoints along a single live wire. The multimeter will indicate the presence or absence of electricity.

Data Hold (HOLD)

• During measurement, short press the power switch button (marked with a power symbol) to enable or disable data retention.

Backlight

• Long press the power switch button (marked with a power symbol) for more than 2 seconds to turn the backlight on or off.

Flashlight

• Long press the NCV/LIVE/AUTO switch button for more than 2 seconds to turn the flashlight on or off.

Automatic Power Off

• If there is no operation within 15 minutes, the meter will automatically shut down to conserve battery energy.

7. Specifications

The following table details the technical specifications of the ANENG A3005 Multimeter Pen Tester:

8. Maintenance

Cleaning

To clean the meter, use only a damp cloth with a small amount of mild detergent. Do not use other chemical solvents or abrasive cleaners, as these can damage the casing or internal components.

Storage

When not in use for extended periods, store the multimeter in a cool, dry place, away from direct sunlight, high temperatures, and excessive humidity. Remove batteries if storing for a very long time to prevent leakage.

General Care

• Regularly inspect the test leads and the meter casing for any signs of damage, cracks, or wear. Replace damaged components immediately.
• Ensure the battery cover is securely fastened after battery replacement.

9. Troubleshooting

If you encounter issues with your ANENG A3005, try the following troubleshooting steps:

• No Display or Faint Display: Check the batteries. If the low battery indicator is on, replace the batteries as described in the Setup section.
• "OL" Display: This indicates an overload or out-of-range measurement. Ensure the measured value is within the meter's specified range for the selected function. For resistance, ensure the circuit is de-energized.
• Inaccurate Readings: Ensure the test leads are properly connected and not damaged. Verify that the measurement mode is appropriate for the task. Check battery level.
• No Buzzer Sound for Continuity: Ensure the resistance between the two points is below 50 Ω. Check for proper contact with the circuit.
• NCV or Live Line Detection Not Working: Ensure the function is correctly selected. Check battery level. Ensure there are no strong interfering electromagnetic fields nearby.
• Device Freezes or Malfunctions: Turn off the device, remove the batteries for a few seconds, then reinsert them and restart the device. If the problem persists, discontinue use and seek professional assistance.

10. User Tips

• Always double-check your connections before taking a measurement to prevent damage to the meter or the circuit.
• Utilize the backlight feature in dimly lit environments for better visibility of readings.
• The compact pen-type design makes it ideal for one-handed operation and carrying in a pocket or tool belt.
• For NCV and Live Line detection, ensure you are holding the meter correctly and not touching the metal tip to avoid false readings or potential hazards.

11. Warranty and Support

The ANENG A3005 Multimeter Pen Tester typically comes with a one-year guarantee period from the date of purchase. This warranty covers manufacturing defects under normal use conditions.

For Support:

If you experience any issues with your device or require technical assistance, please contact the retailer or manufacturer's customer support. When contacting support, please have your purchase information and the product's model number (ANENG A3005) ready.

For additional detailed information and guides, you may refer to the official user manual PDF available at: ANENG A3005 User Manual (PDF).