Homely M890G Digital Multimeter User Manual

1. Ifihan

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. Alaye Aabo

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.
• Maṣe lo diẹ sii ju iwọn voltage, bi a ti samisi lori mita, laarin awọn ebute tabi laarin eyikeyi ebute oko ati ilẹ aiye.
• Lo iṣọra pupọ nigbati o ba n ṣiṣẹ pẹlu voltages loke 60V DC tabi 30V AC RMS. Iru voltages duro a mọnamọna ewu.
• Disconnect the test leads from the circuit before changing functions or ranges.
• Ma ṣe lo mita naa ti o ba han pe o bajẹ tabi ti idabobo ti o wa lori awọn itọsọna idanwo ba ni ipalara.
• Remove the test leads from the meter before opening the battery cover or fuse cover.
• Rọpo batiri naa ni kete ti ifihan batiri kekere ba han lati rii daju pe o peye.
• Má ṣe lo mita náà níbi tí afẹ́fẹ́, èéfín, tàbí eruku bá ń gbóná.

3. Package Awọn akoonu

Verify that all items listed below are present and undamaged:

• Homely M890G Digital Multimeter
• Àwọn Ìdánwò (pupa kan, dúdú kan)
• Ìwádìí Òtútù Thermocouple-Iru K
• Itọsọna olumulo

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. Ọja Ipariview

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

4.1 Ìṣètò Pánẹ́lì Iwájú

olusin 4.1: Alaye iwaju 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.

• Ifihan LCD: Ṣe afihan awọn kika wiwọn, awọn ẹya, ati awọn afihan iṣẹ.
• Yiyi pada: Used to select the desired measurement function (e.g., V~, V=, A~, A=, Ω, °C, Hz, F, Diode, hFE).
• Awọn bọtini iṣẹ: (e.g., HOLD, RANGE, REL, Hz/DUTY, SELECT) for additional features.
• Awọn Jacks ti nwọle:
  • COM: Common terminal for the black test lead.
  • VΩHz: Iṣagbewọle fun voltage, resistance, frequency, capacitance, diode, and continuity measurements (red test lead).
  • mA: Ìfilọ́lẹ̀ fún milliampere current measurements (red test lead).
  • 20A MAX: Input for high current measurements up to 20A (red test lead).

4.2 Rear Features

Nọmba 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.

• Ibẹrẹ: Allows the meter to stand upright for easier viewing.
• Abala Batiri: Located on the rear, secured by screws, for battery replacement.

5. Eto

5.1 Fifi sori batiri

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

1. Rii daju pe multimeter ti wa ni pipa ati pe awọn idari idanwo ti ge asopọ.
2. Wa ideri ibi ipamọ batiri naa ni ẹhin mita naa.
3. Tú àwọn skru tí ó wà ní ìpamọ́ náà kí o sì fi ìṣọ́ra yọ ìbòrí náà kúrò.
4. So batiri 9V tuntun pọ mọ agekuru batiri naa, ki o wo polarity ti o tọ.
5. Fi batiri sinu yara naa ki o si fi ideri naa pada, ki o si fi skru(s) so o mọ.

5.2 Nsopọ Awọn itọsọna Igbeyewo

So okun idanwo dudu pọ mọ ara rẹ nigbagbogbo COM jack. Connect the red test lead to the appropriate input jack based on the measurement type:

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

6. Awọn ilana Iṣiṣẹ

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 Agbara Tan / Pa

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 Idiwon DC Voltage (V=)

1. So asopọ idanwo dudu si COM ati awọn pupa igbeyewo asiwaju si VΩHz.
2. Ṣeto iyipada iyipo si DC Vol ti o fẹtage (V=) range. If the voltage is unknown, start with the highest range and decrease as needed.
3. So awọn itọsọna idanwo ni afiwe si Circuit tabi paati labẹ idanwo.
4. Ka voltage iye lori ifihan LCD.

6.3 Iwọn AC Voltage (V~)

1. So asopọ idanwo dudu si COM ati awọn pupa igbeyewo asiwaju si VΩHz.
2. Ṣeto iyipada iyipo si AC Vol ti o fẹtagìwọ̀n e (V~).
3. Connect the test leads in parallel to the AC source or component.
4. Ka voltage iye lori ifihan LCD.

6.4 Ìwọ̀n Àìdádúró (Ω)

1. Rii daju pe iyika naa ti ni agbara ṣaaju idiwọn resistance.
2. So asopọ idanwo dudu si COM ati awọn pupa igbeyewo asiwaju si VΩHz.
3. Set the rotary switch to the desired Resistance (Ω) range.
4. Connect the test leads across the component whose resistance is to be measured.
5. Ka iye resistance lori ifihan LCD.

6.5 Wiwọn Okun DC (A=)

CAUTION: Never connect the meter in parallel to a voltagorísun e nígbà tí a bá ń wọn ìṣàn. Èyí lè fẹ́ fíùsì tàbí kí ó ba mítà náà jẹ́.

1. De-agbara awọn Circuit.
2. So asopọ idanwo dudu si COM. So asiwaju igbeyewo pupa pọ si 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 Wiwọn Iwọn otutu (°C)

1. Connect the K-type thermocouple to the appropriate input jacks (usually VΩHz ati COM, observing polarity if indicated).
2. Set the rotary switch to the Temperature (°C) function.
3. Fi opin thermocouple naa si ori tabi nitosi ohun ti a fe won iwọn otutu re.
4. Ka iye iwọn otutu lori iboju LCD.

6.7 Miiran Awọn iṣẹ

• Idanwo Ilọsiwaju: Set the rotary switch to the continuity symbol. A built-in buzzer will sound if the resistance is below a certain threshold.
• Idanwo 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 voltage silẹ yoo han.
• Idanwo HFE Transistor: 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.
• Agbara (F): Set the rotary switch to the capacitance range. Connect the leads across the capacitor (ensure it is discharged first).
• Igbohunsafẹfẹ (Hz): Set the rotary switch to the frequency range. Connect the leads to the signal source.

7. Itọju

7.1 Ninu

Pa mita naa pẹlu ipolowoamp Aṣọ àti ọṣẹ ìfọṣọ díẹ̀. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun olómi. Jẹ́ kí àwọn ibi tí a fi ń wọlé wà láìsí ìdọ̀tí àti ọ̀rinrin.

7.2 Batiri Rirọpo

Tí àmì bá hàn lórí ìbòjú, yí bátírì 9V padà gẹ́gẹ́ bí a ṣe ṣàlàyé rẹ̀ nínú Àpín 5.1. Àìṣe bẹ́ẹ̀ lè yọrí sí kíkà tí kò péye.

7.3 Fiusi Rirọpo

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. Fi pẹ̀lẹ́pẹ̀lẹ́ yọ fíúsì àtijọ́ náà kúrò kí o sì fi èyí tuntun tí ó jọra àti ìpele rẹ̀ rọ́pò rẹ̀.
4. Securely close all covers.

8. Laasigbotitusita

9. Awọn pato

10. Atilẹyin ọja ati Support

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.