Introduction
The GVDA Digital Pen Type Multimeter is a versatile and precise tool designed for electrical measurements. It features a fast sampling speed of 3 times per second and high-accuracy readings. Equipped with a clear LCD screen for easy readability and a built-in flashlight for use in low-light conditions, this multimeter is lightweight, pocket-sized, and comfortable to grip, making it ideal for various electrical tasks.
Figure 1: GVDA Smart Pen Type Multimeter and Test Probes
Safety Information
Please read and understand all safety instructions before operating the multimeter. Failure to follow these instructions may result in electric shock, personal injury, or damage to the meter.
- This device conforms to IEC61010-1 CAT.III 600V safety standards and is rated for Pollution Level 2.
- Operating altitude should be less than 2000m.
- Always verify the meter's functionality before use. Do not use the meter if it appears damaged.
- Do not measure values that exceed 600V DC or 600V AC.
- Ensure proper connection of test leads before taking measurements.
Product Features
The GVDA GD109 Multimeter offers a comprehensive set of features for various electrical testing needs:
- Smart (AUTO) Measurement Mode
- HD Digital Display with 4000 counts
- DC Voltage Measurement (0.8V~600V)
- AC Voltage Measurement (0.8V~600V)
- Resistance Test (up to 40MΩ)
- Capacitance Test (up to 4mF)
- Frequency Test (up to 4MHZ)
- Continuity Measurement
- Diode Measurement
- Live Wire Detecting
- Non-contact Phase Sequence Detection
- NCV (Non-Contact Voltage) Measurement
- Data Hold Function
- Built-in Flashlight
- Low Battery Indication
- Auto Power Off
Figure 2: Multimeter Function Icons
Product Overview
Familiarize yourself with the components of your GVDA Smart Pen Type Multimeter:
Figure 3: Multimeter Components
- Input Jack: For connecting test probes.
- On/Off Button: Powers the device on or off.
- Data Hold / Flashlight Button: Short press to hold data, long press to activate flashlight.
- Range Switching Button (FUNC): Cycles through measurement modes.
- Display: LCD screen showing measurement values and indicators.
- Signal Intensity Indicator: Visual indication of detected signal strength.
- NCV Sensor: For non-contact voltage detection.
Figure 4: Detailed View of Multimeter Features
Figure 5: HD Digital Display
Specifications
| Parameter | Value |
|---|---|
| Model Number | GD109 |
| Operating Mode | Auto Range |
| Display Type | Digital Display (4000 counts) |
| Sampling Rate | Approx. 3 times/second |
| DC Voltage Range | 0.8V~600V (±(0.5% +3)) |
| AC Voltage Range | 0.8V~600V (±(0.8%+3)) |
| Measuring Resistance Range | 400Ω, 40KΩ, 400KΩ, 4MΩ (±(1.0%+5)); 40MΩ (±(1.5%+10)) |
| Measuring Capacitance Range | 40nF, 400nF, 4uF, 40uF, 400uF, 4mF (±(3.0+5)) |
| Frequency Range | 40Hz, 400Hz, 4KHz, 40kHz, 400kHz, 4MHZ (±(1.0%+3)) |
| Operating Temperature | 0~40°C (<80% RH, <10°C non condensing) |
| Storage Temperature | -10~60°C (<70% RH, remove battery) |
| Max. Voltage to Earth Ground | 600V |
| Power Supply | 2 x 1.5V AAA batteries (not included) |
| Dimensions | 172*30*22mm |
| Package Weight | 190g |
| Certification | CE |
| DIY Supplies | Electrical |
Figure 6: Multimeter Dimensions
Setup
Battery Installation
The multimeter requires 2 x 1.5V AAA batteries (not included) for operation.
- Locate the battery compartment cover on the back of the multimeter.
- Use a screwdriver (if necessary) to open the battery compartment.
- Insert two AAA batteries, ensuring correct polarity (+ and -).
- Replace the battery compartment cover and secure it.
Figure 7: Battery Replacement Design
Operating Instructions
1. Power On/Off
Press the red power button to turn the multimeter on or off.
2. Smart (AUTO) Measurement
In Smart (AUTO) mode, the multimeter automatically identifies and measures DC voltage, AC voltage, resistance, and continuity. Simply connect the test probes to the circuit, and the meter will display the appropriate reading.
Figure 8: Smart (AUTO) Measurement
3. Live Wire Detecting
Use the live wire detection feature to identify live electrical wires without direct contact. The meter will indicate the presence and strength of an electric field:
- Weak Electric Field: Displays "---L", buzzer sounds slowly, green light illuminates.
- Strong Electric Field: Displays "---H", buzzer sounds quickly, red light illuminates.
Figure 9: Live Wire Detecting
4. NCV (Non-Contact Voltage) Measurement
The NCV function allows for safe detection of AC voltage without physical contact with conductors. Hold the NCV sensor near the conductor; the signal intensity indicator and buzzer will respond to detected voltage.
Figure 10: NCV Measurement
5. Non-contact Phase Sequence Detection
This feature helps determine the phase sequence in three-phase systems:
- Place the sensing probe near the first phase line. The display will show "PA" with the "A" letter flashing. Wait for a beep.
- Move the sensing probe to the second phase line. The display will show "PAB" with the "B" letter flashing. Wait for a beep.
- Move the sensing probe to the third phase line. The display will show "PABC" with the "C" letter flashing. Wait for a long beep.
Figure 11: Phase Sequence Detection Steps
6. Other Function Tests
Press the "FUNC" button to cycle through other measurement modes such as AC/DC Voltage, Capacitance, Resistance, Diode, and Continuity (On and off beep).
Figure 12: Various Function Tests
7. Flashlight
Long press the Data Hold / Flashlight button to turn the built-in flashlight on or off, useful for illuminating dark work areas.
Figure 13: Flashlight Feature
Maintenance
Battery Replacement
When the low battery indicator appears on the display, replace the batteries promptly to ensure accurate measurements. Refer to the "Battery Installation" section under Setup for detailed steps.
Cleaning
Wipe the meter with a damp cloth and mild detergent. Do not use abrasives or solvents.
Storage
If the meter is not used for an extended period, remove the batteries to prevent leakage and damage. Store in a cool, dry place.
Troubleshooting
- Meter does not power on: Check if the batteries are correctly installed and have sufficient charge. Replace if necessary.
- Inaccurate readings: Ensure test probes are making good contact. Verify that the correct measurement mode is selected. Check for environmental factors like extreme temperatures or humidity.
- "OL" displayed: This indicates an over-range condition. The measured value exceeds the meter's maximum capacity for the selected range.
User Tips
Based on user feedback and common questions, here are some tips for getting the most out of your multimeter:
- The Smart (AUTO) measurement mode is highly beneficial for quick and accurate identification of capacitance, voltage, resistance, and other electrical parameters, simplifying common tasks.
- Utilize the live wire detection and phase sequence detection features for enhanced safety when working with electrical circuits.
- Always keep spare AAA batteries on hand, as they are not included with the device.
Warranty and Support
This product is covered by a standard manufacturer's warranty. For warranty claims, technical assistance, or support inquiries, please contact the seller or manufacturer directly with your purchase details.