Manwal tal-Utent tal-Multimetru Diġitali Homely M890G

1. Introduzzjoni

Thank you for choosing the Homely M890G Digital Multimeter. This device is a portable, battery-powered digital multimeter designed for measuring AC/DC voltage, AC/DC current, resistance, capacitance, frequency, temperature, diode, and transistor hFE. It features a clear digital display, data hold function, and auto power-off for convenience and efficiency. Please read this manual thoroughly before use to ensure safe and proper operation.

2. Informazzjoni dwar is-Sigurtà

WARNING: To avoid electric shock or personal injury, and to avoid damage to the meter or to the equipment under test, observe the following safety rules:

• Always ensure the meter is in the correct function and range before making measurements.
• Applikax aktar mill-vol nominalitage, kif immarkat fuq il-meter, bejn it-terminals jew bejn kwalunkwe terminal u ground ground.
• Uża kawtela kbira meta taħdem bil-voltages fuq 60V DC jew 30V AC RMS. Tali voltages joħolqu periklu ta' xokk.
• Disconnect the test leads from the circuit before changing functions or ranges.
• Tużax il-miter jekk jidher li hu bil-ħsara jew jekk l-insulazzjoni fuq il-wajers tat-test tkun kompromessa.
• Remove the test leads from the meter before opening the battery cover or fuse cover.
• Ibdel il-batterija hekk kif jidher l-indikatur ta' batterija baxxa biex tiżgura qari preċiż.
• Tħaddimx il-miter f'ambjenti b'gass, fwar jew trab splussiv.

3. Kontenut tal-Pakkett

Verify that all items listed below are present and undamaged:

• Homely M890G Digital Multimeter
• Wavel tat-Test (wieħed aħmar, wieħed iswed)
• Sonda tat-Temperatura tat-Termokoppja tat-Tip K
• Manwal għall-Utent

Figure 3.1: Contents of the Homely M890G Digital Multimeter package, including the multimeter, red and black test leads, a K-type thermocouple, and the instruction manual.

4. Prodott Aktarview

The Homely M890G Digital Multimeter features a robust design with a clear LCD display and a rotary switch for function selection.

4.1 Tqassim tal-Panel ta' Quddiem

Figura 4.1: Quddiem dettaljat view of the M890G multimeter, highlighting the LCD display, function rotary switch, and input terminals. The display shows '00.0' and test leads are connected.

• Display LCD: Juri l-qari tal-kejl, l-unitajiet, u l-indikaturi tal-funzjoni.
• Swiċċ li jdur: Used to select the desired measurement function (e.g., V~, V=, A~, A=, Ω, °C, Hz, F, Diode, hFE).
• Buttuni tal-Funzjoni: (e.g., HOLD, RANGE, REL, Hz/DUTY, SELECT) for additional features.
• Ġakkijiet tad-dħul:
  • COM: Common terminal for the black test lead.
  • VΩHz: Input għal voltage, resistance, frequency, capacitance, diode, and continuity measurements (red test lead).
  • mA: Input għal milliampere current measurements (red test lead).
  • 20A MAX: Input for high current measurements up to 20A (red test lead).

4.2 Rear Features

Figura 4.2: Views of the M890G multimeter from the side and rear, illustrating the integrated kickstand for hands-free operation and the battery compartment cover.

• Kickstand: Allows the meter to stand upright for easier viewing.
• Kompartiment tal-batterija: Located on the rear, secured by screws, for battery replacement.

5. Setup

5.1 Installazzjoni tal-batterija

The M890G multimeter requires a 9V battery (not always included). To install or replace the battery:

1. Kun żgur li l-multimetru jkun mitfi u li l-wajers tat-test ikunu skonnettjati.
2. Sib l-għatu tal-kompartiment tal-batterija fuq wara tal-miter.
3. Unscrew the retaining screw(s) and carefully remove the cover.
4. Connect a new 9V battery to the battery clip, observing correct polarity.
5. Poġġi l-batterija fil-kompartiment u erġa’ poġġi l-għatu, billi twaħħlu bil-vit(i).

5.2 Konnessjoni tal-wajers tat-test

Dejjem qabbad il-wajer tat-test iswed mal- COM jack. Qabbad il-wajer tat-test aħmar mal-jack tad-dħul xieraq skont it-tip ta' kejl:

• Għal Voltage, Resistance, Capacitance, Frequency, Diode, and Continuity measurements, connect the red lead to the VΩHz jack.
• For current measurements up to 500mA, connect the red lead to the mA jack.
• For current measurements up to 20A, connect the red lead to the 20A MAX jack.

6. Istruzzjonijiet Operattivi

Before taking any measurement, ensure the test leads are correctly connected and the rotary switch is set to the desired function and range.

6.1 Power On/Off

Turn the rotary switch from the OFF position to any desired function to power on the meter. To power off, turn the rotary switch back to the OFF position. The meter features an auto power-off function to conserve battery life after a period of inactivity.

6.2 Kejl DC Voltage (V=)

1. Qabbad it-test taċ-ċomb iswed ma ' COM u l-wajer tat-test aħmar għal VΩHz.
2. Issettja s-swiċċ rotatorju għall-Volum DC mixtieqtage (V=) range. If the voltage is unknown, start with the highest range and decrease as needed.
3. Qabbad il-wajers tat-test b'mod parallel maċ-ċirkwit jew il-komponent li qed jiġi ttestjat.
4. Aqra l-voltage valur fuq il-wiri LCD.

6.3 Kejl AC Voltage (V~)

1. Qabbad it-test taċ-ċomb iswed ma ' COM u l-wajer tat-test aħmar għal VΩHz.
2. Issettja s-swiċċ rotatorju għall-Volum AC mixtieqtage (V~) range.
3. Connect the test leads in parallel to the AC source or component.
4. Aqra l-voltage valur fuq il-wiri LCD.

6.4 Kejl tar-Reżistenza (Ω)

1. Kun żgur li ċ-ċirkwit ma jkollux l-enerġija qabel ma tkejjel ir-reżistenza.
2. Qabbad it-test taċ-ċomb iswed ma ' COM u l-wajer tat-test aħmar għal VΩHz.
3. Set the rotary switch to the desired Resistance (Ω) range.
4. Qabbad il-wajers tat-test mal-komponent li r-reżistenza tiegħu trid titkejjel.
5. Aqra l-valur tar-reżistenza fuq id-displej LCD.

6.5 Measuring DC Current (A=)

CAUTION: Never connect the meter in parallel to a voltage source when measuring current. This can blow the fuse or damage the meter.

1. Neħħi l-enerġija taċ-ċirkwit.
2. Qabbad it-test taċ-ċomb iswed ma ' COMQabbad il-wajer tat-test aħmar ma' mA for currents up to 500mA, or to 20A MAX for currents up to 20A.
3. Set the rotary switch to the appropriate DC Current (A=) range.
4. Open the circuit where the current is to be measured and connect the meter in series with the load.
5. Re-energize the circuit and read the current value on the LCD display.

6.6 Measuring Temperature (°C)

1. Connect the K-type thermocouple to the appropriate input jacks (usually VΩHz u COM, observing polarity if indicated).
2. Set the rotary switch to the Temperature (°C) function.
3. Poġġi l-ponta tat-termokoppja fuq jew viċin l-oġġett li trid titkejjel it-temperatura tiegħu.
4. Aqra l-valur tat-temperatura fuq id-displej LCD.

6.7 Funzjonijiet Oħra

• Test ta' Kontinwità: Set the rotary switch to the continuity symbol. A built-in buzzer will sound if the resistance is below a certain threshold.
• Test tad-Diode: Set the rotary switch to the diode symbol. Connect the red lead to the anode and black lead to the cathode of the diode. The forward voltagse tintwera e drop.
• Transistor hFE Test: Insert the transistor into the hFE socket on the meter, ensuring correct Emitter, Base, Collector (EBC) orientation for NPN or PNP types. Set the rotary switch to hFE.
• Kapaċità (F): Set the rotary switch to the capacitance range. Connect the leads across the capacitor (ensure it is discharged first).
• Frekwenza (Hz): Set the rotary switch to the frequency range. Connect the leads to the signal source.

7. Manutenzjoni

7.1 Tindif

Imsaħ il-miter b'reklamaramp cloth and mild detergent. Do not use abrasives or solvents. Keep the input terminals free from dirt and moisture.

7.2 Sostituzzjoni tal-batterija

When the low battery indicator appears on the display, replace the 9V battery as described in Section 5.1. Failure to do so may result in inaccurate readings.

7.3 Sostituzzjoni tal-Fjus

If the meter fails to measure current, the fuse may be blown. Refer to the specifications for the correct fuse type. To replace the fuse:

1. Ensure the meter is off and all test leads are disconnected.
2. Open the battery compartment cover (and potentially an additional fuse cover, depending on the model).
3. Carefully remove the old fuse and replace it with a new one of the identical type and rating.
4. Securely close all covers.

8 Issolvi l-problemi

9. Speċifikazzjonijiet

10. Garanzija u Appoġġ

For warranty information or technical support regarding your Homely M890G Digital Multimeter, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase.