ANENG SZ818 PRO Digital Multimeter User Manual

1. Product Overview

The ANENG SZ818 PRO is a versatile digital multimeter designed for a wide range of electrical measurements. It features a clear LCD display, Type-C rechargeable lithium battery, and various functions including NCV sensing, hFE Triode test, and automatic power off. This instrument is built to meet the safety requirements of IEC-61010 standards.

2. Safety Information

Please read this instruction manual carefully before using the instrument. Pay attention to all safety warnings and operating instructions to prevent electric shock, injury, or damage to the meter.

• This instrument complies with 600V CAT IV and 1000V CAT.III safety standards.
• Do not exceed 600V when performing measurement class III voltage measurement, do not exceed 1000V when performing measurement class IV voltage measurement.
• The meter is powered by a built-in 3.7V lithium battery. Recharge with a standard DC5V Type-C socket charger when the battery is low.
• A low battery indicator means the battery should be replaced or charged immediately, as low power can lead to inaccurate readings.
• Always ensure the correct function and range are selected before making measurements.
• When measuring current, always connect the multimeter in series with the circuit. Never connect it in parallel to a voltage source.
• Before measuring capacitance, ensure the capacitor is fully discharged to avoid damage to the instrument.

3. Product Components and Features

1. Display screen
2. Function switch key (SEL)
3. Data retention (H)
4. Triode jack
5. Shutdown
6. Resistance (Ω)
7. Diode/On-Off Beep
8. Capacitor (F)
9. AC/DC Current (A/mA)
10. Hz Hertz
11. BAT battery detection
12. hFE Triode
13. AC/DC Voltage (V/mV)
14. NCV Voltage Detection / Live: Naught FireWire
15. Function turntable
16. 10A red positive jack
17. BAT mA red positive jack
18. COM black negative jack
19. Red positive jack (for voltage/resistance/capacitance/frequency/diode/hFE)
20. Pen holder
21. 3.7V lithium battery compartment
22. Type-C charging port
23. Back bracket

4. Setup and Charging

4.1 Initial Setup

Before first use, ensure the multimeter is charged. The device is powered by a built-in 3.7V 14500 lithium battery.

4.2 Charging Instructions

Connect the multimeter to a standard DC5V Type-C socket charger using the provided Type-C charging cable. A red light will illuminate during charging. The light will extinguish when the battery is fully charged.

The multimeter features a back bracket for convenient reading during testing and a pen holder for storing test leads.

5. Operating Instructions

Turn the function turntable (15) to select the desired measurement mode. Use the SEL key (2) to switch between sub-functions if available (e.g., AC/DC for voltage/current, Live/Naught for NCV).

5.1 Voltage Measurement (DC/AC)

1. Turn the function turntable to the 'V' or 'mV' position.
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the test probes in parallel across the component or circuit to be measured.
4. The display will show the voltage reading.

The multimeter can also perform three-phase voltage detection, quickly identifying missing phase lines and measuring voltage between pairs of three-phase lines (normal range: 365V~425V).

5.2 Current Measurement (DC/AC)

IMPORTANT: Current measurements require the multimeter to be connected in series with the circuit. Never connect the multimeter in parallel to a voltage source when measuring current, as this can burn out the device.

1. Turn the function turntable to the 'A' or 'mA' position.
2. For currents up to 200mA, connect the red test lead to the 'BAT mA' jack (17). For currents up to 10A, connect the red test lead to the '10A' jack (16). Connect the black test lead to the 'COM' jack (18).
3. Open the circuit and connect the test probes in series with the circuit.
4. The display will show the current reading.

5.3 Resistance Measurement

1. Turn the function turntable to the 'Ω' position (6).
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the test probes across the resistor or circuit to be measured.
4. The display will show the resistance reading.

5.4 Capacitance Measurement

WARNING: Before measuring capacitance, ensure the capacitor is fully discharged by shorting its terminals. Failure to do so can damage the multimeter.

1. Turn the function turntable to the 'F' position (8).
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the test probes across the discharged capacitor.
4. The display will show the capacitance reading.

5.5 Frequency (Hz) Measurement

1. Turn the function turntable to the 'Hz' position (10).
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the test probes to the circuit where frequency needs to be measured.
4. The display will show the frequency reading.

5.6 Diode Test

1. Turn the function turntable to the 'Diode' position (7).
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the red probe to the anode and the black probe to the cathode of the diode.
4. The display will show the forward voltage drop. Reverse the probes to check for open circuit (OL).

5.7 On-Off Beep (Continuity Test)

1. Turn the function turntable to the 'On-Off Beep' position (7).
2. Connect the red test lead to the 'VΩHz' jack (19) and the black test lead to the 'COM' jack (18).
3. Connect the test probes across the circuit or component.
4. If the resistance is below a certain threshold, the multimeter will beep, indicating continuity. No beep indicates an open circuit or high resistance.

5.8 hFE Triode Test

1. Turn the function turntable to the 'hFE' position (12).
2. Insert the transistor leads (NPN or PNP) into the corresponding holes in the triode jack (4).
3. The display will show the hFE value of the transistor.

5.9 NCV (Non-Contact Voltage) Detection

1. Turn the function turntable to the 'NCV' position (14).
2. Bring the top of the multimeter close to the wire or component to be tested.
3. If AC voltage is detected, the multimeter will beep, and the frequency of the beep will increase as you get closer to the voltage source.

5.10 Live Wire Detection (Naught FireWire)

1. Turn the function turntable to the 'Live' position (14, using SEL key to switch).
2. Insert the red test probe into the socket or touch the wire.
3. If it's a live wire, the display will show "LIVE" and a beep will sound. If it's a neutral wire, there will be no response.

5.11 BAT Battery Detection

1. Turn the function turntable to the 'BAT' position (11).
2. Connect the red test lead to the 'BAT mA' jack (17) and the black test lead to the 'COM' jack (18).
3. Connect the red probe to the positive terminal and the black probe to the negative terminal of the battery.
4. The display will show the battery voltage, allowing you to quickly assess battery health for 1.5V, 3V, 9V, and 12V batteries.

5.12 Data Retention (Hold)

Press the 'H' key (3) to hold the current reading on the display. Press it again to release the hold function.

5.13 Auto Power Off

The multimeter will automatically power off after 15 minutes of no operation to conserve battery life.

6. Maintenance

• Keep the multimeter clean and dry. Wipe with a soft, damp cloth if necessary. Do not use abrasive cleaners or solvents.
• Store the multimeter in a cool, dry place away from direct sunlight and extreme temperatures.
• If the battery indicator appears, charge the battery immediately to ensure accurate readings and prolong battery life.
• Replace the fuse (FF 200mA/250V for mA range) if current measurement functions stop working. Ensure the replacement fuse matches the specified rating.

7. Troubleshooting

• No display or faint display: Check battery charge level. Recharge the battery if low.
• Inaccurate readings: Ensure test leads are properly connected. Check battery level. Ensure correct function and range are selected.
• No continuity beep: Check if the circuit is truly continuous. Ensure test leads are not broken.
• Current measurement not working: Check if the fuse is blown. Replace with a fuse of the correct rating (FF 200mA/250V for mA range). Ensure series connection.
• Multimeter does not turn on: Ensure the battery is charged. If still not working, contact support.

8. Specifications

Note: The parameters are for reference only, and the actual measurement of the specific equipment shall prevail.

9. User Tips

• For current measurements, always ensure the multimeter is connected in series with the load. Connecting it in parallel to a voltage source can damage the device.
• When measuring capacitance, always discharge the capacitor first to prevent damage to the multimeter and ensure accurate readings.
• Utilize the back bracket for hands-free operation and easier reading during prolonged testing.
• The NCV and Live wire detection features are excellent for quickly identifying live circuits without direct contact, enhancing safety.
• Remember to press the 'H' key to hold a reading on the display if you need to record it or move the probes.

10. Accessories List

1. Packing box
2. User Manual
3. Multimeter (ANENG SZ818 PRO)
4. Test leads (red and black)
5. Type-C Charging cable

11. Warranty and Support

For any technical assistance or warranty inquiries, please refer to the seller's contact information or the official ANENG website. Keep your purchase receipt as proof of purchase.