GVDA GD128 Digital Multimeter User Manual

1. Introduzzjoni

The GVDA GD128 SMART Digital Multimeter is a professional testing instrument designed for accurate and reliable measurements. It is an ideal choice for professional electricians, engineers, electronics enthusiasts, and for general household use. This manual provides detailed instructions on the safe and effective operation of your GD128 multimeter.

Il-kapaċitajiet ewlenin jinkludu:

• AC u DC Voltage Kejl
• Kejl tal-Kurrent AC u DC
• Kejl tar-Reżistenza
• Kejl tal-Kapaċitanza
• Kejl tal-Kontinwità
• Kejl tad-diode
• NCV (Vol. Mingħajr Kuntatttage) Kejl
• True RMS for accurate readings of non-sinusoidal signals
• Large VA color HD LCD screen with 9999 counts display
• Awtomatiku u Manwali
• Flashlight and Input Connector LED Indication

Figure 1.1: GVDA GD128 Digital Multimeter with test probes.

2. Informazzjoni dwar is-Sigurtà

WARNING: To avoid electrical shock or personal injury, please read and understand all instructions and safety information before using this multimeter.

• Always ensure the multimeter is in the correct function and range before making measurements.
• Teċċedix il-valuri massimi tad-dħul għal kwalunkwe firxa.
• Oqgħod attent meta taħdem bil-voltag'il fuq minn 30V AC RMS, 42V peak, jew 60V DC. Dawn il-volumitages joħolqu periklu ta' xokk.
• Spezzjona l-wajers tat-test għal insulazzjoni bil-ħsara jew metall espost qabel l-użu. Ibdel jekk bil-ħsara.
• Do not operate the multimeter if it appears damaged or if it is not operating properly.
• Dejjem skonnettja l-enerġija miċ-ċirkwit u armi l-kurrent kollu ta' vultaġġ għoli.tage capacitors qabel l-ittestjar tar-reżistenza, kontinwità, diodes, jew capacitance.
• Kun żgur li l-għatu tal-batterija jkun magħluq sew qabel l-operazzjoni.
• This device meets safety standards EN61010-1,-2-030, EN61010-2-033, EN61326-1 CAT III 1000V, CAT IV 600V.

3. Prodott Aktarview u Komponenti

Familiarize yourself with the different parts of your GVDA GD128 Digital Multimeter.

Figura 3.1: Quddiem u ġenb view of the GD128 Multimeter with labeled components.

1. Żona tas-Sensor NCV
2. Ċavetta tal-enerġija
3. Ċavetta tal-flashlight
4. Indikatur ta' twissija
5. Flashlight
6. Indikatur tal-jack tad-dħul
7. Jack other than current and NCV
8. COM jack (Common)
9. mA (<600mA) jack
10. 10A jack
11. Auto power off key
12. Ċavetta tal-funzjoni
13. Wiri

Figura 3.2: Wara view of the GD128 Multimeter highlighting the integrated LED flashlight.

4. Setup

4.1 Installazzjoni tal-batterija

The GVDA GD128 Multimeter requires 3 x 1.5V AAA batteries (not included) for operation.

1. Kun żgur li l-multimetru huwa mitfi.
2. Sib il-kompartiment tal-batterija fuq wara tal-apparat.
3. Uża tornavit biex tiftaħ l-għatu tal-kompartiment tal-batterija.
4. Insert 3 AAA batteries, observing the correct polarity (+ and -) as indicated inside the compartment.
5. Ibdel l-għatu tal-kompartiment tal-batterija u waħħalha bil-kamin.

Figure 4.1: Battery compartment for 3 AAA batteries.

4.2 Konnessjoni tal-wajers tat-test

Connect the test leads to the appropriate input jacks for the desired measurement function. Always connect the black test lead to the COM (Common) jack. Connect the red test lead to the jack corresponding to the measurement type (e.g., VΩHz for voltage/reżistenza/frekwenza, mA għal milliampere current, 10A for ampere current).

5. Istruzzjonijiet Operattivi

The GD128 features both auto-ranging and manual-ranging capabilities. The "SMART" function automatically identifies AC/DC voltage, reżistenza, u kontinwità.

Figure 5.1: Multifunctional Use Range icons.

5.1 Power On/Off

Agħfas il- Ċavetta tal-enerġija (2) to turn the multimeter on or off.

5.2 Għażla tal-Funzjoni

The multimeter typically starts in SMART mode. Press the FUNC (Function) key (12) or SEL key to cycle through different measurement modes within a category (e.g., AC/DC voltage, resistance/continuity/diode).

5.3 Common Measurement Functions

Figura 5.2: Eżamples of various function tests.

5.3.1 TitjiratagKejl elettroniku (AC/DC)

• Qabbad il-wajer tat-test iswed mal-jack COM u l-wajer tat-test aħmar mal-jack VΩHz.
• Select the appropriate AC (~) or DC (---) voltagmodalità e.
• Qabbad il-wajers tat-test b'mod parallel maċ-ċirkwit jew il-komponent li għandu jitkejjel.
• Il-wiri se juri l-voltagqari.

5.3.2 Kejl tal-Kurrent (AC/DC)

• Qabbad iċ-ċomb iswed tat-test mal-jack COM.
• For current up to 600mA, connect the red test lead to the mA jack. For current up to 10A, connect the red test lead to the 10A jack.
• Select the appropriate AC (~) or DC (---) current mode.
• Connect the multimeter in series with the circuit to be measured.
• The display will show the current reading.

5.3.3 Kejl tar-Reżistenza (Ω)

• Qabbad il-wajer tat-test iswed mal-jack COM u l-wajer tat-test aħmar mal-jack VΩHz.
• Select the Resistance (Ω) mode.
• Kun żgur li ċ-ċirkwit ma jkollux l-enerġija qabel ma tkejjel ir-reżistenza.
• Qabbad il-wajers tat-test mal-komponent li għandu jitkejjel.
• Id-displej se juri l-qari tar-reżistenza.

5.3.4 Kejl tal-Kapaċità (F)

• Qabbad il-wajer tat-test iswed mal-jack COM u l-wajer tat-test aħmar mal-jack VΩHz.
• Select the Capacitance (F) mode.
• Ensure the capacitor is fully discharged before measurement to avoid damage to the multimeter.
• Qabbad il-wajers tat-test mat-terminals tal-kapaċitatur.
• Id-displej se juri l-qari tal-kapaċitanza.

5.3.5 Test tal-Kontinwità (Ω)

• Qabbad il-wajer tat-test iswed mal-jack COM u l-wajer tat-test aħmar mal-jack VΩHz.
• Select the Continuity mode.
• Touch the test leads to the points you want to check for continuity. A continuous beep indicates a complete circuit.

5.3.6 Test tad-Dijodi (→|)

• Qabbad il-wajer tat-test iswed mal-jack COM u l-wajer tat-test aħmar mal-jack VΩHz.
• Select the Diode Test mode.
• Qabbad il-wajer tat-test aħmar mal-anodu u l-wajer tat-test iswed mal-katodu tad-dijodu. Id-displej se juri l-volum 'il quddiemtage drop. Reverse the leads; an open circuit (OL) reading indicates a good diode.

5.3.7 NCV (Mhux Kuntatt Voltage) Kejl

• Select the NCV mode.
• Move the NCV sensor area (1) near the conductor. The multimeter will beep and the warning indicator (4) will light up with increasing frequency as it detects AC voltage.

Figure 5.3: NCV (Non-Contact Voltage) measurement in progress.

5.3.8 Funzjonijiet Oħra

• RMS Veru: Provides accurate readings for both sinusoidal and non-sinusoidal AC waveforms.
• MASSIMU/MINIMU/MEDJA: Agħfas il- MAX/MIN key to record maximum, minimum, and average readings.
• REL (Kejl Relattiv): Agħfas il- REL/HOLD key briefly to set the current reading as a reference for subsequent measurements.
• Żamma tad-Data: Agħfas il- REL/HOLD key briefly to freeze the current reading on the display.
• Flashlight: Agħfas il- Ċavetta tal-flashlight (3) to turn the built-in flashlight on/off.
• Mitfi Awtomatiku (APO): The multimeter will automatically power off after a period of inactivity to save battery life.

6. Applikazzjonijiet

The GVDA GD128 Digital Multimeter is versatile and suitable for a wide range of applications, including but not limited to:

Figure 6.1: Diverse applications of the GD128 Multimeter.

• Electronic beginners and hobbyists
• Electronic circuit installation and testing
• Electronic maintenance and repair
• Electromechanical maintenance
• Vehicle inspection and automotive electrical work
• Maintenance of household appliances
• General electrical troubleshooting

7. Speċifikazzjonijiet

Detailed technical specifications for the GVDA GD128 Digital Multimeter:

8. Manutenzjoni

Manutenzjoni xierqa tiżgura l-lonġevità u l-preċiżjoni tal-multimetru tiegħek.

• Tindif: Imsaħ il-każ bl-adamp drapp u deterġent ħafif. Tużax abrażivi jew solventi.
• Sostituzzjoni tal-batterija: Ibdel il-batteriji minnufih meta jidher l-indikatur ta' batterija baxxa biex tiżgura qari preċiż.
• Sostituzzjoni tal-fjus: If the current measurement function fails, the fuse may be blown. Refer to the warning label inside the battery compartment for fuse specifications (e.g., F600mA/250V, F10A/250V). Ensure the multimeter is off and test leads are disconnected before replacing fuses.
• Ħażna: If the multimeter is not used for a long period, remove the batteries to prevent leakage. Store in a cool, dry place away from direct sunlight.

9 Issolvi l-problemi

If you encounter issues with your GVDA GD128 Multimeter, try the following:

• Ebda Wiri/Mixgħul: Iċċekkja l-installazzjoni tal-batterija u kun żgur li l-batteriji mhumiex eżawriti. Ibdel jekk meħtieġ.
• Qari Skorrett: Verify test lead connections, ensure the correct function and range are selected, and check if the circuit is de-energized for resistance/continuity/capacitance tests.
• "OL" Display: Indicates an over-range condition or an open circuit (e.g., when measuring resistance on an open wire).
• Ebda Ħoss ta' Kontinwità: Check if the circuit is truly continuous. If not, the circuit is open.
• Fuse Blown Warning: If the current measurement function is not working, the fuse might be blown. Replace the fuse as per maintenance instructions.

Għal problemi persistenti, ikkuntattja l-appoġġ għall-klijenti.

10. Garanzija u Appoġġ

Your GVDA GD128 Digital Multimeter comes with a Garanzija ta '30 jum for system failures or factory problems. Please retain your proof of purchase for warranty claims.

For technical support, warranty claims, or further assistance, please refer to the contact information provided with your product packaging or visit the official GVDA websit.

11. Kontenut tal-Pakkett

Upon opening your GVDA GD128 Digital Multimeter package, you should find the following items:

Figure 11.1: Contents included in the GD128 Multimeter package.

• 1 x GVDA GD128 Digital Multimeter
• 1 x Test Lead Set (Original pen cable)
• 1 x Borża tad-Drapp
• 1 x Thermocouple Probe
• 1 x Manwal għall-Utent
• 1 x Gift Box (Packaging)