ANENG V9 Digital Multimeter

Introduction

This product is a battery-powered, true-rms, autoranging digital multimeter with a 6000 counts LCD display and a backlight.

Safety Information

To avoid possible electrical shock, fire, or personal injury, please read all safety information before you use the product. Please use the product only as specified, or the protection supplied by the product can be compromised.

• Examine the case before you use the product. Look for cracks or missing plastic. Carefully look at the insulation around the terminals.
• The measurement must be made with correct input terminals and functions and within the allowable measuring range.
• Do not use the product around explosive gas, vapor, or in damp or wet environments.
• Keep fingers behind the finger guards on the probes.
• When the product has already been connected to the line being measured, do NOT touch the input terminal that is not in service.
• Disconnect the test leads from the circuit before changing the mode.
• When the voltage to be measured exceeds 36V DC or 25V AC, the operator shall be careful enough to avoid electric shock.
• Misuse of mode or range can lead to hazards; be cautious. The display will show "OL" (or similar out-of-range indicator) when the input is out of range.
• Low battery level will result in incorrect readings. Change the batteries when the battery level is low. Do not make measurements when the battery door is not properly placed.

Instrument Overview

LCD Display Indicators

• [Hold]: Display freezes present reading.
• [Diode]: Diode test.
• [Continuity]: Continuity test.
• [REL]: Relative mode.
• [MAX]: Display shows maximum reading.
• [MIN]: Display shows minimum reading.
• [Temperature]: Temperature test (Fahrenheit or Celsius).
• [Duty Cycle]: Duty cycle test.
• [Resistance]: Resistance test (Ohm).
• [Frequency]: Frequency test (Hertz).
• [Manual Range]: Manual range. The user selects the range.
• [Auto Range]: Auto range. The product selects the range with the best resolution.
• [Square Wave]: Square waves output.
• [True RMS]: True RMS measurement capability.
• [Low Battery]: Low battery. Replace batteries.
• [AC]: Alternating current.
• [DC]: Direct current.
• [Unsafe Voltage]: Indicates an unsafe voltage level.
• [Auto Power Off]: Auto power off function is active.
• [Units]: Measurement units (e.g., V, A, Ohm, Hz, °C, °F).

Function Buttons

• SELECT Button: Selects alternate measurement modes on a rotary switch setting, including: Frequency/Duty Cycle, DC mA/AC mA, DC A/AC A, Celsius/Fahrenheit, Square waves output.
• HOLD/BACKLIGHT Button: Push once to hold the current reading on the display; push again to continue normal operation. Push for more than 2 seconds to turn on the backlight; long-push again to turn off, or the backlight automatically turns off after 2 minutes.
• REL Button: Push this button to enter the relative mode. The product stores the present reading as a reference for subsequent readings. The display is zeroed, and the stored reading is subtracted from all subsequent readings. Push again to exit the relative mode.
• NCV Button: Keep pushing this button to enter the NCV (Non-Contact Voltage) testing mode. In this mode, you have to push the button continuously.
• FLASHLIGHT Button: Push once to turn on the flashlight, push once more to turn off the flashlight.
• MAX/MIN Button: Push to toggle between the MAX and the MIN mode. To exit MAX/MIN mode, push the button for more than 2 seconds.

Rotary Switch

The rotary switch is used to select measurement functions and ranges. The positions include:

• [OFF]: Turn off the product at this position.
• Auto Power Off: The product automatically powers off after 15 minutes of inactivity. The built-in beeper beeps 5 times 1 minute before auto power off. To restart the product from auto power off, press the SELECT button or turn the rotary switch back to the OFF position and then to a needed position. To disable the Auto Power Off function, hold down the SELECT button when turning on the product; you will hear four beeps if you have successfully disabled the function.
• AC High Voltage (2000V AC)
• DC High Voltage (2000V DC)
• NCV: Non-contact voltage detection.
• AC Voltage (750V AC)
• DC Voltage (1000V DC)
• AC Millivolt (600mV AC)
• DC Millivolt (600mV DC)
• Resistance (60MΩ)
• Continuity Test
• Diode Test
• Capacitance (60mF)
• Frequency (10MHz)
• Square wave output (50Hz~5000Hz)
• Temperature (Celsius: -20~1000°C, Fahrenheit: -4~1832°F)
• AC/DC Current Milliampere (600mA)
• AC/DC Current Microampere (6000uA)

Input Terminals

• 2000V Terminal: Dedicated input port for 2000V AC/DC high voltage measurement.
• mA / uA Terminal: Input port for AC and DC small current measurement (mA < 600mA, uA < 6000uA).
• COM Terminal: Common (return) terminal for all measurements.
• VΩHz°C°F/REL/CAP Button Terminal: Input terminal for the measurements of AC/DC voltage, Resistance, Capacitance, Frequency, Temperature, Continuity, Diode, Duty cycle, and Square waves output.

Measurements Instruction

Measure AC/DC Voltage

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Rotate the rotary knob to select the AC or DC voltage range according to the voltage signal to be measured. Press the RANGE button to select AUTO or MANUAL mode.
3. Touch the probes to the correct test points of the circuit to measure the voltage.
4. Read the measured voltage on the display.

Note: Do not measure voltage that exceeds the extremes indicated in the Specifications. Do not touch high voltage circuits during measurements.

Measure AC/DC Current

1. Connect the black test lead to the COM Terminal and the red lead to the mA / uA Terminal (The maximum test value is 600mA).
2. Turn the knob switch to the AC/DC mA or uA range according to the signal indication.
3. Break the circuit path to be measured, connect the test leads across the break, and apply power.
4. Read the measured current on the display.

Note: Do not measure current that exceeds the extremes indicated in the Specifications. This meter has a small current range; the maximum current should not exceed 600mA. Evaluate before measuring and select the appropriate range. Do not input voltage at this setting.

Measure Resistance

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Resistance [Ω] mode.
3. Touch the probes to the desired test points of the circuit to measure the resistance.
4. Read the measured resistance on the display.

Note: Disconnect circuit power and discharge all capacitors before testing resistance. Do not input voltage at this setting.

Test for Continuity

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Continuity [ Continuity ] mode.
3. Touch the probes to the desired test points of the circuit.
4. The built-in beeper will beep when the resistance is lower than 50Ω, indicating a short circuit.

Note: Do not input voltage at this setting.

Test Diodes

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Diode [ Diode ] mode.
3. Connect the red probe to the anode side and the black probe to the cathode side of the diode being tested.
4. Read the forward bias voltage value on the display.
5. If the polarity of the test leads is reversed or the diode is broken, the display reading will show "OL" (or similar out-of-range indicator).

Note: Do not input voltage at this setting. Disconnect circuit power and discharge all capacitors before testing diodes.

Measure Capacitance

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Capacitance [ Capacitance ] mode.
3. Connect the red probe to the anode side and the black probe to the cathode side of the capacitor being tested.
4. Read the measured capacitance value on the display once the reading is stabilized.

Note: Disconnect circuit power and discharge all capacitors before testing capacitance.

Measure Frequency

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Frequency [ Frequency ] mode (applies to high frequency with low voltage); or turn the rotary switch to AC Voltage mode, press SELECT once to toggle to the Frequency Mode (applies to low frequency with high voltage).
3. Touch the probes to the desired test points.
4. Read the measured frequency value on the display.

Measure Duty Cycle

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Frequency/Duty Cycle [ Frequency/Duty Cycle ] mode, press the SELECT button once to toggle to the Duty Cycle Mode [ Duty Cycle ].
3. Touch the probes to the desired test points.
4. Read the measured duty cycle value on the display.

Measure Temperature

1. Connect the black thermocouple probe to the COM Terminal and the red probe to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Temperature [ Temperature ] mode. The display will show the room temperature. To toggle between Celsius [°C] and Fahrenheit [°F], press the SELECT button.
3. Touch the probes to the desired test points.
4. Read the measured temperature on the display.

Note: Do not input voltage at this setting.

Square Wave Output

1. Connect the black test lead to the COM Terminal and the red lead to the VΩHz°C°F/REL/CAP Terminal.
2. Turn the rotary switch to the Square Wave Output [ Square Wave ] mode. The default output frequency is 50Hz. To change the output frequency, press the SELECT button.
3. Touch the probes to the desired test points.

Note: Do not input voltage at this setting.

2000V AC/DC High Voltage Measurement

1. According to the signal properties to be measured, turn the dial wheel to the high voltage 2000V AC or DC voltage range (in the red zone). Insert the black test lead into the COM terminal and the red test lead into the 2000V terminal.
2. Touch the probes to the desired test points.
3. Read the measured voltage on the display.

Test NCV (Non-Contact Voltage)

1. Keep pushing the NCV button [NCV].
2. Hold the product and move it around. The built-in beeper will beep when the inner sensor detects AC voltage nearby. The stronger the voltage, the quicker the beeper beeps.
3. In this mode, if the red test lead is inserted into the VΩHz°C°F/REL/CAP Terminal, and the probe contacts the neutral wire (N) and live wire (L) respectively, you can distinguish them: strong induction for the live wire, weak induction for the neutral wire.

Maintenance

Beyond replacing batteries and fuses, do not attempt to repair or service the product unless you are qualified to do so and have the relevant calibration, performance test, and service instructions.

Clean the Product

Wipe the product with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or moisture in the terminals can affect readings.

Note: Remove the input signals before cleaning the product.

Replace the Batteries

When the [Low Battery] indicator is shown on the display, batteries shall be replaced as follows:

1. Remove the test leads and turn off the product before replacing the batteries.
2. Loosen the screw on the battery door and remove the battery door.
3. Replace the used batteries with new batteries of the same type (3 x 1.5V AA Battery).
4. Place the battery door back and fasten the screw.

Replace the Fuses

When a fuse is blown or does not work properly, it shall be replaced as follows:

1. Remove the test leads and turn off the product before replacing the fuse.
2. Loosen the four screws on the back cover and the screw on the battery door, then remove the battery door and the back cover.
3. Replace the fuse with a new fuse of the same type.
4. Place the back cover and the battery door back and fasten the screws.

Specifications

General Specifications

Mechanical Specifications

Environmental Specifications

Electrical Specifications

DC Voltage (V)

AC Voltage (V)

DC Current (A)

AC Current (A)

Resistance (Ω)

Capacitance (F)

Frequency (Hz)

Duty Cycle

Temperature (°C / °F)

Diode Test

Continuity Test

NCV Test

Square Wave Output