ANENG AN860B+ Digital Multimeter User Manual

1. Introduction

The ANENG AN860B+ is an auto-ranging digital multimeter designed for precise electrical measurements. It utilizes a double-integral style A/D transform as its core, providing stable function and high reliability. This device is capable of measuring AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Diode, Continuity, Temperature, and Frequency. It is battery-powered and features overload protection and a clear LCD display, making it suitable for various applications.

Key Features:

• Auto/Manual Ranging
• True RMS Measurement
• 550V Protection in Resistance and Capacitance Ranges
• Large LCD Display with Backlight
• Maximum Display: 6000 Counts
• Sample Rate: 3 times per second
• MAX/MIN Data Hold
• Polarity Identification
• Low Voltage Indication
• 20A High Current Measurement Capability
• Automatic Power Off (can be manually cancelled)

2. Safety Information

To ensure safe operation and to avoid damage to the meter, please read this manual carefully before use. Observe all warnings and precautions.

• Always ensure the test leads are properly connected and the function switch is set to the correct range before making any measurements.
• Do not apply voltage or current that exceeds the maximum specified limits for the meter.
• Exercise extreme caution when working with voltages above 30V AC RMS, 42V peak, or 60V DC. Such voltages pose a shock hazard.
• Before measuring current, ensure the circuit is de-energized and the meter is connected in series with the load.
• Never measure resistance, continuity, or diode on a live circuit.
• Replace batteries immediately when the low battery indicator appears to ensure accurate readings.
• Do not operate the meter if it appears damaged or if the test leads are damaged.
• Adhere to local and national safety codes.

3. Product Overview

The ANENG AN860B+ Digital Multimeter features a robust design with a clear LCD display and intuitive controls.

Figure 1: Front view of the ANENG AN860B+ Digital Multimeter, showing the display, function dial, and input jacks.

3.1. Display

The large LCD provides clear readings, even in varying light conditions, thanks to its backlight feature. It can display up to 6000 counts.

Figure 2: Close-up of the multimeter's display, illustrating its clarity and backlight functionality for visibility in various lighting conditions.

3.2. Controls and Input Jacks

• Function Dial: Used to select the desired measurement mode (Voltage, Current, Resistance, etc.).
• RANGE Button: Toggles between auto-ranging and manual ranging.
• RELA Button: Activates relative measurement mode.
• MAX/MIN Button: Records and displays maximum and minimum values during a measurement.
• Hz % Button: Selects frequency or duty cycle measurement.
• HOLD/⁂ Button: Freezes the current display reading; long press activates the backlight.
• SELECT Button: Toggles between different measurement types within a single dial position (e.g., AC/DC voltage, Diode/Continuity).
• V⁂Hz% Input Jack: For voltage, frequency, and resistance measurements.
• mA⁂uA Input Jack: For milliampere and microampere current measurements (600mA FUSED).
• 20A Input Jack: For high current measurements up to 20A (20A FUSED).
• COM Input Jack: Common terminal for all measurements (negative lead).

4. Setup

4.1. Battery Installation

The ANENG AN860B+ requires two 1.5V AA batteries for operation. To install or replace batteries:

1. Ensure the multimeter is turned OFF.
2. Locate the battery compartment on the back of the unit.
3. Use a screwdriver to open the battery compartment cover.
4. Insert two 1.5V AA batteries, observing the correct polarity (+ and -).
5. Replace the battery compartment cover and secure it with the screw.

4.2. Connecting Test Leads

Always connect the test leads correctly for the desired measurement.

• For most measurements (Voltage, Resistance, Capacitance, Diode, Continuity, Frequency, Temperature): Insert the red test lead into the V⁂Hz% jack and the black test lead into the COM jack.
• For current measurements up to 600mA: Insert the red test lead into the mA⁂uA jack and the black test lead into the COM jack.
• For current measurements up to 20A: Insert the red test lead into the 20A jack and the black test lead into the COM jack.

5. Operating Instructions

This section details how to perform various measurements with your ANENG AN860B+ multimeter.

5.1. Automatic Ranging

The multimeter features an automatic ranging function, simplifying operation by automatically selecting the appropriate measurement range. This is indicated by 'AUTO' on the display.

Figure 3: The multimeter highlighting its automatic ranging capability for various measurements like voltage, resistance, capacitance, and current.

5.2. Measuring DC/AC Voltage (V⁂ / V⁂)

1. Set the function dial to the V⁂ (DC Voltage) or V⁂ (AC Voltage) position. Use the SELECT button to toggle if needed.
2. Connect the red test lead to the V⁂Hz% jack and the black test lead to the COM jack.
3. Connect the test probes in parallel to the circuit or component you wish to measure.
4. Read the voltage value on the display.

5.3. Measuring DC/AC Current (A⁂ / A⁂)

1. Set the function dial to the appropriate current range (mA⁂uA or 20A). Use the SELECT button to toggle between AC and DC current.
2. Connect the red test lead to the mA⁂uA or 20A jack and the black test lead to the COM jack.
3. Important: De-energize the circuit. Open the circuit where you want to measure current and connect the multimeter in series.
4. Re-energize the circuit and read the current value on the display.

5.4. Measuring Resistance (Ω)

1. Set the function dial to the Ω position.
2. Connect the red test lead to the V⁂Hz% jack and the black test lead to the COM jack.
3. Ensure the circuit is de-energized. Connect the test probes across the component to measure its resistance.
4. Read the resistance value on the display.

5.5. Measuring Capacitance (––|–)

1. Set the function dial to the ––|– position.
2. Connect the red test lead to the V⁂Hz% jack and the black test lead to the COM jack.
3. Ensure the capacitor is fully discharged before connecting the test probes.
4. Connect the test probes across the capacitor.
5. Read the capacitance value on the display.

5.6. Diode Test (––|–) and Continuity Test (⁂)))

1. Set the function dial to the ––|– position. Use the SELECT button to toggle between Diode and Continuity modes.
2. Connect the red test lead to the V⁂Hz% jack and the black test lead to the COM jack.
3. For Diode Test: Connect the red probe to the anode and the black probe to the cathode of the diode. The display will show the forward voltage drop. Reverse the probes; the display should show 'OL' (Open Line) for a good diode.
4. For Continuity Test: Connect the probes across the circuit or component. A continuous beep indicates a low resistance path (continuity). The display will show the resistance value.

5.7. Measuring Temperature (˚C/˚F)

1. Set the function dial to the ˚C/˚F position.
2. Connect the temperature probe (thermocouple) to the V⁂Hz% and COM jacks, observing polarity.
3. Place the tip of the temperature probe on or near the object whose temperature you wish to measure.
4. Read the temperature value on the display.

5.8. Measuring Frequency (Hz) and Duty Cycle (%)

1. Set the function dial to the Hz % position. Use the Hz % button to toggle between frequency and duty cycle.
2. Connect the red test lead to the V⁂Hz% jack and the black test lead to the COM jack.
3. Connect the test probes in parallel to the signal source.
4. Read the frequency or duty cycle value on the display.

6. Maintenance

6.1. Battery Replacement

When the low battery indicator appears on the display, replace the batteries as described in the Setup section (4.1). Always use two new 1.5V AA batteries.

6.2. Cleaning

To clean the multimeter, 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.

6.3. Fuse Replacement

The multimeter is protected by internal fuses. If the current measurement function stops working, the fuse may need replacement. Fuse replacement should only be performed by qualified personnel. Refer to the specifications for fuse ratings.

7. Troubleshooting

• No display or faint display: Check battery installation and replace batteries if necessary.
• 'OL' displayed: Indicates an over-range condition or an open circuit. Check connections and ensure the measured value is within the selected range.
• Incorrect readings: Ensure test leads are properly connected, the function dial is set to the correct measurement, and batteries are not low.
• Current measurement not working: Check the fuse. If blown, replace with a fuse of the correct rating.

8. Specifications

Figure 4: Product parameters and dimensions of the ANENG AN860B+ Digital Multimeter.

General Specifications:

• Measurement Mode: Double-integral style A/D transform
• Over Range Indication: OL
• Working Environment: 0–40˚C, relative humidity <80%
• Supply Power: 3V (2 x 1.5V AA Battery, not included)
• Dimension: 180 x 90.5 x 45 mm (7.1 x 3.5 x 1.8 inches)
• Weight: 450g
• Maximum Display: 6000 Counts
• Test Line Length: 970mm / 38.2in
• Packaging Includes: Multimeter, Temperature line, Test leads (Watch pen), User manual

9. Warranty and Support

This product is typically covered by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty details, please refer to the documentation provided with your purchase or contact the retailer. For technical support or service inquiries, please reach out to the product's point of purchase or the manufacturer's customer service channels.