ANENG B18 Voltage Test Pen and SZ202 Digital Multimeter User Manual

1. Product Overview

The ANENG B18 Highlight Voltage Test Pen and SZ202 Digital Multimeter are a versatile set of tools designed for professional electricians and DIY enthusiasts. This set provides comprehensive capabilities for measuring various electrical parameters, ensuring safety and accuracy in electrical work.

Figure 1: ANENG B18 Voltage Test Pen and SZ202 Digital Multimeter Set

Key Features:

• SZ202 Digital Multimeter: High precision digital display, 4000 count, AC/DC Current, AC/DC Voltage, NCV Voltage Detection, Capacitance, Diode, Resistance, On-Off Beep, Data Retention, Auto Power Off.
• B18 Highlight Voltage Test Pen: Sensitive NCV voltage induction, Line On-Off Measurement, Naught/Live line identification, Three-color LED indicator, Phillips/Slotted screwdriver, Insulated glued handle.

2. Setup

2.1 Multimeter (SZ202) Battery Installation

1. Locate the back cover bracket on the multimeter.
2. Open the back cover bracket.
3. Unscrew the screw securing the battery compartment lid.
4. Remove the lid.
5. Load two 1.5V AAA batteries into the compartment, ensuring correct polarity.
6. Replace the lid and screw it back into place.
7. Close the back cover bracket.

2.2 Voltage Test Pen (B18) Battery Installation

The B18 Voltage Test Pen requires one 1.5V AAA battery. Refer to the manual included with the test pen for specific battery installation instructions.

Figure 2: B18 Test Pen accessories, including manual for battery installation.

3. Operating Instructions

3.1 SZ202 Digital Multimeter Operation

The SZ202 Multimeter features an intelligent automatic range function, simplifying measurements. Use the rotary switch to select the desired measurement function and the SET key to cycle through sub-functions if available.

Figure 3: SZ202 Multimeter Panel Layout. Key components include: 1. Indicator light, 2. Digital display, 3. Data hold key (H), 4. Relative value measurement switch key (REL), 5. Function switch key (SET), 6. Shutdown (OFF), 7. AC/DC voltage (V~), 8. Resistance/Diode/On/Off (Ω), 9. Capacitor (NCV), 10. NCV, 11. mA AC/DC current (mA~A), 12. AC/DC current (A~), 13. Function turntable, 14. Current 10A red gauge pen positive jack input, 15. Red gauge pen positive input, 16. Black watch pen negative jack input (COM).

3.1.1 DC Voltage Measurement

Turn the function turntable to the 'V' position. Connect the red test lead to the positive terminal and the black test lead to the negative terminal of the DC source (e.g., battery). The multimeter will display the voltage. For batteries, the positive and negative electrodes need to be divided. Common batteries are direct current.

Figure 4: Measuring DC voltage on a 12V battery.

3.1.2 AC Voltage Measurement

Turn the function turntable to the 'V~' position. Press the SET key to switch to AC voltage mode. Insert the test leads into the AC source (e.g., wall socket). The multimeter will display the AC voltage. Household electricity is generally around 220V (or 120V in some regions).

Figure 5: Measuring AC voltage in a wall socket.

3.1.3 Resistance Detection

Turn the function turntable to the 'Ω' position. Connect the test leads across the component to measure its resistance. The resistance detection range is very large, covering appliance repair to chip-level diagnostics.

Figure 6: Measuring resistance on various components.

3.1.4 Diode and On-Off Beep (Continuity) Measurement

Turn the function turntable to the 'Ω' position. Press the SET key to switch between Diode and On-Off Beep modes.

• Diode: Connect the test leads across the diode. The multimeter will display the forward voltage drop. For reverse cutoff, it will show 'OL'. Diode lamp beads can be lit.
• On-Off Beep: Connect the test leads across a circuit or component. If the line is turned on (continuous), the multimeter will beep. Fuses are also detectable; if it is not common, it will not sound.

Figure 7: Demonstrations of On-Off Beep and Resistance measurements.

3.1.5 Capacitance Detection

Turn the function turntable to the 'NCV' position. Press the SET key to switch to Capacitance mode. Ensure the capacitor is discharged before testing. Connect the test leads across the capacitor. No need to distinguish between positive and negative electrodes for capacitance measurement.

Figure 8: Demonstrations of Capacitance measurement.

3.1.6 NCV (Non-Contact Voltage) Detection

Turn the function turntable to the 'NCV' position. Place the multimeter near a live wire or electrical component. The closer the distance to the voltage, the louder the alarm and the more indicator lights will illuminate. This function is useful for detecting breakpoints in wires.

Figure 9: NCV detection showing alarm and breakpoint identification.

3.1.7 Current Measurement (mA and 10A)

Important: Current measurement must be done in series with the circuit. Do not measure current in parallel like voltage, as this will burn out the instrument.

Figure 10: Correct series connection for current measurement. The red test lead should be inserted into the 10A or mA jack, and the black test lead into the COM jack. The circuit must be disconnected and the multimeter inserted in series.

• mA Current: Turn the function turntable to the 'mA~A' position. Press SET to switch between DC and AC mA current. Connect the red test lead to the mA jack and the black test lead to the COM jack. Insert the multimeter in series with the circuit. This range is for very small currents.
• 10A Current: Turn the function turntable to the 'A~' position. Press SET to switch between DC and AC 10A current. Connect the red test lead to the 10A jack and the black test lead to the COM jack. Insert the multimeter in series with the circuit. This range is for larger currents, up to 10 amps.

Figure 11: Demonstrations of mA DC/AC current and 10A DC/AC current measurements.

3.1.8 Data Retention (H)

Press the 'H' key to hold the current reading on the screen for easy recording.

3.2 B18 Highlight Voltage Test Pen Operation

The B18 Test Pen is a multi-functional tool for quick electrical checks.

Figure 12: B18 Test Pen features: Touch Key, Three-color LED, Anti-slip handle, Glue insulated handle, Battery compartment, Batch header.

3.2.1 Contactless NCV Voltage Induction

Hold the tester pen and touch the touch button with your finger. When an AC voltage is detected around the tip, the indicator light will turn blue, and an alarm will sound. The sensitivity allows for detection along the line to find breakpoints.

Figure 13: Demonstrating contactless NCV voltage induction with the B18 Test Pen.

3.2.2 Line On-Off Detection

Operate as shown in the picture: keep touching the touch button when measuring. The green light of the indicator light being on indicates that the line is unobstructed (continuity).

Figure 14: Line On-Off Detection using the B18 Test Pen.

3.2.3 Naught/Live Line Identification

Hold the tester pen and touch the touch button. Insert the tip into a socket or near a wire.

• Naught Line: The indicator light is green, and there is no beep.
• Live Line: The indicator light is red and accompanied by a beep.

Figure 15: Identifying Naught and Live lines with the B18 Test Pen.

3.2.4 Screwdriver Function

The B18 Test Pen features a durable Phillips/Slotted screwdriver nib for various applications.

4. Maintenance

4.1 General Care

• Keep the instruments clean and dry. Wipe with a soft, damp cloth if necessary.
• Avoid exposing the instruments to extreme temperatures, humidity, or direct sunlight.
• Do not use abrasive cleaners or solvents.

4.2 Battery Replacement

Replace batteries when the low power indicator appears on the display. For long-term storage, it is best to remove the batteries to prevent battery corrosion of other internal components of the instrument.

Figure 16: SZ202 Multimeter battery compartment showing two 1.5V AAA batteries.

5. Troubleshooting

5.1 General Precautions

• Safety First: Do not touch the probes directly with your hands to avoid electric shock and ensure personal safety during testing.
• Inspect Probes: Before use, inspect the test probes to ensure there is no damaged insulation or exposed metal.
• Correct Range: If you do not know the magnitude of the voltage or current to be measured, start with the highest range and then select the appropriate range based on the measured value.

5.2 Specific Measurement Issues

• Current Measurement Errors: Always measure current in series with the circuit. Measuring current in parallel (like voltage) will damage the instrument. Ensure the correct input jack (mA or 10A) is used for the expected current range.
• Capacitance Measurement Inaccuracy: Always discharge capacitors before measuring to prevent damage to the multimeter and ensure accurate readings.
• Multimeter Not Turning On: Check battery installation and ensure batteries are not depleted.
• Test Pen Not Responding: Ensure the battery in the B18 Test Pen is correctly installed and has sufficient charge. Ensure your finger is making full contact with the touch key when measuring contact or induction.

6. Specifications

6.1 SZ202 Digital Multimeter Specifications

6.2 B18 Highlight Voltage Test Pen Specifications

7. User Tips

• For accurate current measurements, always ensure the multimeter is connected in series with the circuit.
• When measuring capacitance, always discharge the capacitor first to prevent damage to the device and ensure safety.
• The multimeter's kickstand is very useful for hands-free operation, allowing you to easily view the display while working.
• The NCV function on both devices is excellent for quickly checking for live wires without direct contact, enhancing safety.
• Remember to press and hold the 'H' button on the multimeter to retain the displayed value for easier reading in difficult positions.

8. Warranty and Support

ANENG is committed to providing quality products and support. If you encounter any issues or have questions regarding the use of your ANENG B18 Voltage Test Pen or SZ202 Digital Multimeter, please refer to the following guidelines:

Figure 17: ANENG's professional after-sales team support information.

8.1 After-Sales Questions

For any questions during the use of the product, please contact ANENG customer service. They aim to provide satisfactory solutions in a timely manner.

8.2 Quality Issues

In case of quality problems other than "man-made damage" during the use of the product, replacement services or refunds can be provided. For specific product damage, contact ANENG customer service to confirm and discuss solutions.

• Replacement Method: Replacement of spare parts, replacement of the whole machine.
• Refund Method: Partial refund according to damaged parts, full refund if the whole machine is damaged.

8.3 Replacement or Refund Request

• Contact customer service to provide product quality problem video for damage determination.
• Negotiate a solution.
• Destroy (smash) products with quality problems to avoid secondary damage.
• Execute the solution.

8.4 Product Not Operating Properly

If there is any problem during the use of the product that prevents it from operating normally, please provide a detailed video of the product not operating normally to ANENG customer service. Experts will review and provide a solution.

8.5 Questions About Product Use

This brand product is a technical product and requires a certain degree of electrical knowledge. If you encounter operational problems or do not understand how to use the product, please contact ANENG customer service for assistance.

8.6 Artificially Damaged Product

This brand is mostly used to detect electrical and other measurement products. It requires a certain degree of electrical knowledge. Pay attention to the use of certain operating procedures, select the correct measurement method, and avoid dangerous events. If the customer uses the product improperly and the use method is not equal, resulting in damage to the product, it will be judged as man-made damage, which is not within the scope of after-sales service of the product. However, you can contact ANENG customer service to receive a certain amount of coupons to deduct the newly purchased ANENG products.