ZLLJMETER ZL128B Digital Multimeter User Manual

1. Ọja Ipariview

The ZLLJMETER ZL128B is a smart digital multimeter designed for accurate electrical measurements. It features a 9999-count LCD display with backlight, auto-ranging capabilities, and a rechargeable lithium battery for extended use. This device integrates multiple functions including AC/DC voltage, resistance, frequency, capacitance, diode test, and non-contact voltage (NCV) erin.

Awọn ẹya pataki:

• 9999 Awọn iṣiro LCD Ifihan
• Auto Range Functionality
• Idanwo Waya Laaye
• Non-Olubasọrọ Voltage (NCV) erin
• Diode Test and On-off Beep
• Iṣẹ Daduro Data
• Otitọ Iwọn Iwọn RMS
• Agbara Aifọwọyi Pa a
• Ina Filaṣi ti a ṣepọ
• Batiri litiumu gbigba agbara
• Capacitance Measurement up to 100mF
• Frequency Measurement up to 10MHz
• Temperature Measurement (-50°C to 1100°C industrial, 0°C to 60°C ambient)

Figure 1: ZLLJMETER ZL128B Digital Multimeter with included accessories.

Figure 2: The ZL128B features a large, backlit color display for clear readings in various lighting conditions.

2. Alaye Aabo

WARNING: Read and understand all safety information and operating instructions in this manual before using the ZL128B multimeter. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Rí i dájú pé multimeter wà ní ipò ìwọ̀n tó tọ́ kí o tó so àwọn ọ̀nà ìdánwò pọ̀ mọ́ Circuit kan.
• Má ṣe kọjá iye ìtẹ̀síwájú tó pọ̀ jùlọ tí a sọ fún gbogbo ìwọ̀n.
• Never use the multimeter if it appears damaged or if the test leads are compromised.
• Avoid touching exposed wires or circuit components while taking measurements.
• Lo iṣọra nigbati o ba n ṣiṣẹ pẹlu voltagÀwọn wọ̀nyí lókè 30V AC RMS, 42V tente oke, tàbí 60V DC, nítorí pé wọ́n ń fa ewu ìjayà.
• Máa yọ agbára kúrò nínú ẹ̀rọ náà kí o tó wọn resistance, capacitance, tàbí continuity.
• Ensure the battery is adequately charged for accurate readings.
• This device complies with IEC 61010-1 safety standards.

3. Eto

3.1 Unpacking ati ayewo

Carefully unpack the ZL128B multimeter and all accessories. Verify that all items listed below are present and undamaged:

• ZLLJMETER ZL128B Digital Multimeter
• Awọn itọsọna Idanwo (Pupa ati Dudu)
• Okun Ngba agbara USB
• Thermocouple (for temperature measurement)
• Afowoyi Olumulo (iwe-ipamọ yii)

Tí àwọn nǹkan kan bá sọnù tàbí tí wọ́n bá bàjẹ́, kàn sí olùpèsè rẹ lẹ́sẹ̀kẹsẹ̀.

3.2 Ngba agbara si Batiri naa

The ZL128B is equipped with a rechargeable lithium battery. Before first use, or if the battery indicator shows low power, charge the device using the provided USB cable.

1. Connect the small end of the USB charging cable to the charging port on the multimeter.
2. Connect the standard USB end of the cable to a USB power adapter (not included) or a computer USB port.
3. Àmì ìgbara lórí multimeter náà yóò fi ipò gbigba agbara hàn.
4. Nígbà tí o bá ti gba agbára tán pátápátá, yọ okùn USB náà kúrò.

The multimeter can be used while charging, but it is recommended to charge it fully before critical measurements.

3.3 Nsopọ Awọn itọsọna Igbeyewo

Always ensure test leads are correctly connected for the desired measurement function.

• Fun ọpọlọpọ awọn wiwọn (Iwọn didun)tage, Resistance, Capacitance, Frequency, Diode, Continuity):
  • Fi sii pupa test lead into the "VΩHz" input jack.
  • Fi sii dudu test lead into the "COM" input jack.
• For Current Measurements (AC/DC Current):
  • Fi sii pupa test lead into the "10A" input jack.
  • Fi sii dudu test lead into the "COM" input jack.

4. Awọn ilana Iṣiṣẹ

The ZL128B features an intelligent auto-ranging function that simplifies operation for common measurements. For specific functions, manual mode selection may be required.

4.1 Agbara Tan / Pa

Press the power button to turn the multimeter on. The device will automatically enter auto-ranging mode. To turn off, press and hold the power button, or wait for the automatic power-off feature to activate after a period of inactivity.

4.2 Àṣàyàn Iṣẹ́ (Bọ́tìnì SEL)

In auto mode, the multimeter attempts to identify the measurement type. For specific functions or to cycle through sub-functions within a mode (e.g., AC/DC voltage, diode/continuity), press the SEL bọtini.

4.3 AC / DC Voltage Idiwon

The ZL128B can measure both AC and DC voltages. In auto mode, it will detect the type of voltage. For manual selection, use the SEL bọtini.

1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
2. Turn on the multimeter. It will typically default to auto voltage erin.
3. Touch the red and black test probes to the points in the circuit where you want to measure voltage.
4. Ka voltage iye han loju iboju.

Figure 3: Measuring AC/DC Voltage. Ensure test leads are connected to the correct ports.

4.4 Ìwọ̀n Ìsinsìnyìí AC/DC

To measure current, the multimeter must be connected in series with the circuit. Always ensure the circuit is de-energized before connecting the multimeter for current measurement.

1. De-agbara awọn Circuit.
2. Connect the red test lead to the "10A" jack and the black test lead to the "COM" jack.
3. Break the circuit at the point where you want to measure current.
4. Connect the red probe to the higher potential side and the black probe to the lower potential side to complete the circuit through the multimeter.
5. Re-energize the circuit.
6. Ka awọn ti isiyi iye han loju iboju.
7. De-energize the circuit before disconnecting the multimeter.

Figure 4: Measuring AC/DC Current. Connect the multimeter in series with the circuit.

4.5 Resistance Wiwọn

To measure resistance, the component must be isolated from the circuit (de-energized and disconnected).

1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
2. Select the resistance mode (Ω) using the SEL button if not in auto mode.
3. Touch the test probes across the component to be measured.
4. Ka iye resistance.

4.6 Iwọn Agbara

WARNING: Ensure capacitors are fully discharged before measuring capacitance to prevent damage to the multimeter.

1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
2. Select the capacitance mode (F) using the SEL bọtini.
3. Fọwọ́ kan àwọn ìwádìí ìdánwò lórí àwọn ebute capacitor náà.
4. Ka awọn capacitance iye.

Figure 5: Measuring Capacitance. Always discharge capacitors before measurement.

4.7 Igbohunsafẹfẹ wiwọn

The ZL128B can measure the frequency of AC signals.

1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
2. Select the frequency mode (Hz) using the SEL bọtini.
3. Touch the test probes across the signal source.
4. Ka iye igbohunsafẹfẹ.

4.8 Idanwo Diode ati Itẹsiwaju

These functions are typically grouped. Use the SEL bọtini lati yipada laarin wọn.

• Idanwo Diode:
  1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
  2. Select the diode test mode (symbol: →|→).
  3. Place the red probe on the anode and the black probe on the cathode of the diode. A forward voltage drop will be displayed. Reverse the probes; an open circuit (OL) should be displayed.
• Idanwo Ilọsiwaju:
  1. Connect the red test lead to the "VΩHz" jack and the black test lead to the "COM" jack.
  2. Select the continuity mode (symbol: ♫).
  3. Touch the probes to the two points to be tested. If continuity exists (resistance below a certain threshold), the multimeter will emit an audible beep.

4.9 Non-olubasọrọ Voltage (NCV) erin

The NCV function allows detection of AC voltage without direct contact with conductors.

1. Tẹ awọn NCV bọtini lati mu ipo NCV ṣiṣẹ.
2. Move the top end of the multimeter (where the NCV sensor is located) close to the conductor.
3. Multimeter naa yoo fihan wiwa AC voltage through visual (LEDs) and/or audible (beeping) signals. The intensity of the signal usually increases with voltage strength or proximity.

Idanwo Waya Laaye 4.10

The Live Wire test helps identify live (hot) wires in an AC circuit.

1. Tẹ awọn LIVE button to activate Live Wire mode.
2. Touch the red test probe to the conductor you suspect is live. Do not use the black test lead.
3. The multimeter will indicate if the wire is live, typically with a specific icon and/or audible alarm.

4.11 Data Hold (HOLD Button)

Tẹ awọn DIMU bọ́tìnì láti dì kíkà tó wà lórí ìbòjú náà. Tẹ̀ ẹ́ lẹ́ẹ̀kan síi láti tú ìdúró náà sílẹ̀ kí o sì tún bẹ̀rẹ̀ àwọn ìwọ̀n tó wà láàyè.

4.12 ògùṣọ

The ZL128B includes a built-in flashlight for illuminating dark work areas.

1. Press the flashlight button (often integrated with another function or a dedicated button) to turn the flashlight on.
2. Tẹ lẹẹkansi lati pa a.

Figure 6: The integrated LED flashlight assists in low-light conditions.

4.13 Wiwọn iwọn otutu

The ZL128B can measure temperature using the included thermocouple.

1. Ensure the multimeter is off.
2. Connect the thermocouple to the appropriate input jacks (usually marked for temperature or sharing VΩHz/COM). Observe polarity if indicated.
3. Turn on the multimeter and select the temperature measurement mode (usually °C or °F).
4. Place the tip of the thermocouple at the point where temperature is to be measured.
5. Ka iye iwọn otutu lori ifihan naa.

Figure 7: Measuring temperature using the included thermocouple probe.

5. Itọju

5.1 Ninu

Nu multimeter c nuasing pẹlu ipolowoamp Aṣọ àti ọṣẹ ìfọṣọ díẹ̀. Má ṣe lo àwọn ohun ìfọṣọ tàbí àwọn ohun olómi. Rí i dájú pé ẹ̀rọ náà ti pa àti pé kò sí ní àwọn ibi tí ó wà kí o tó sọ ọ́ di mímọ́.

5.2 Gbigba agbara batiri

Recharge the internal lithium battery when the low battery indicator appears on the display. Use only the provided USB cable or a compatible charger. Overcharging or using incompatible chargers may damage the battery.

5.3 Ibi ipamọ

When not in use for extended periods, store the multimeter in a cool, dry place, away from direct sunlight and extreme temperatures. It is recommended to fully charge the battery before long-term storage and to recharge it every few months to maintain battery health.

5.4 Igbeyewo asiwaju asiwaju

Regularly inspect the test leads for any signs of damage, such as cracked insulation, exposed wires, or loose connections. Replace damaged test leads immediately to ensure safety and accurate measurements.

6. Laasigbotitusita

• Multimeter ko ni agbara lori:
  • Ensure the battery is charged. Connect the USB cable and charge for at least 30 minutes.
  • Ṣàyẹ̀wò bóyá a tẹ bọ́tìnì agbára náà tí a sì dì í mú dáadáa.
• No reading or "OL" (Overload) displayed:
  • Verify that the test leads are correctly inserted into the appropriate jacks for the selected function.
  • Ensure the multimeter is in the correct measurement mode.
  • Check if the circuit or component being measured is within the multimeter's range. "OL" often indicates a value exceeding the maximum range or an open circuit.
  • For resistance/continuity, ensure the component is isolated from power.
• Awọn kika ti ko pe:
  • Check battery level; low battery can affect accuracy.
  • Ensure test leads are making good contact with the circuit.
  • Rí i dájú pé a ti yan ipò ìwọ̀n tó tọ́.
  • Yago fun kikọlu itanna eletiriki.
• NCV or Live Wire detection not working:
  • Ensure the NCV/LIVE function is activated.
  • The sensor needs to be close to the AC voltage orisun.

7. Awọn pato

The following table provides detailed technical specifications for the ZLLJMETER ZL128B Digital Multimeter.

Figure 8: Technical specifications for ZL128B.

8. Atilẹyin ọja ati Support

8.1 atilẹyin ọja Alaye

The ZLLJMETER ZL128B Digital Multimeter comes with a 1-odun atilẹyin ọja from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper operation.

Jọwọ ṣe idaduro iwe rira rẹ bi ẹri rira fun awọn iṣeduro atilẹyin ọja.

8.2 Onibara Support

For technical assistance, warranty claims, or any questions regarding the ZLLJMETER ZL128B, please contact the manufacturer or authorized distributor.

Olupese: Shenzhen Zhuoliang Laojiang Instrument Co., Ltd.

Akowọle/Apoti (India): MDS Automech Solutions

• Address: Q-106, Phase 3, Shivalik Nagar, BHEL, Haridwar, Uttarakhand-249403, India
• Contact: +91-9870694636
• Imeeli: mohit@mdsautomech.in

When contacting support, please have your product model (ZL128B) and purchase details ready.