1. Киришүү
The TOOLTOP MH16 Digital Multimeter Megohmmeter is a battery-powered insulation resistance tester designed for professional use. This versatile instrument can accurately measure DC voltage, AC томtage, resistance, and insulation resistance. It offers three selectable test voltages for insulation resistance: 500V, 1000V, and 2500V, making it suitable for a wide range of applications.
Key features include automatic discharge, automatic shutdown, a clear backlight display, data saving capabilities, and a low battery warning, ensuring ease of use and reliable performance. Its robust design and precision make it an essential tool for electrical testing and maintenance.
Figure 1: The MH16 Digital Multimeter Megohmmeter with its test leads, highlighting its primary function as a resistance tester.
2. Коопсуздук маалыматы
ЭСКЕРТҮҮ: Always read and understand all safety information and operating instructions before using this instrument. Failure to do so may result in serious injury or death.
- This instrument is designed for measuring high voltages. Always exercise extreme caution when working with electrical circuits.
- Ар дайым тиешелүү Жеке коргонуу шаймандарын (ЖКК) кийиңиз, including high-voltage insulating gloves, safety glasses, and protective clothing, when performing insulation resistance tests or working with high voltage.
- Ensure the circuit under test is completely de-energized and isolated before connecting the tester, especially for insulation resistance measurements.
- Do not use the instrument if it appears damaged or if the test leads are frayed or broken.
- Do not operate the instrument in wet environments or explosive atmospheres.
- Функцияларды же диапазондорду өзгөртүүдөн мурун ар дайым сыноо өткөргүчтөрүн чынжырдан ажыратыңыз.
- The instrument features automatic discharge. However, always verify that the circuit is fully discharged before touching any components after a high-voltage тест.
- Refer to the specifications for maximum input ratings for each function. Do not exceed these ratings.
Figure 2: Performing an insulation resistance test. Note the critical safety reminder: "Before testing, make sure that the circuit under test has no electrical presence, and the tester must wear a pair of high-voltage insulating gloves."
3. Продукт бүтүп калдыview жана компоненттер
Familiarize yourself with the various parts and controls of your MH16 Digital Multimeter Megohmmeter for optimal operation.
Figure 3: Detailed diagram of the MH16's components and their functions.
- Line Terminal L: Input terminal for measurements.
- Shielded Terminal G/AC Voltage Measurement Ground Terminal: Common ground for AC voltage өлчөөлөр.
- AC жана DC Voltage Measurement V Terminal: Input terminal for AC and DC voltage өлчөөлөр.
- Ground Terminal E: Earth ground terminal for insulation resistance tests.
- External Power Jack: For connecting an external power supply.
- Арткы жарыктуу санарип дисплей: Өлчөө көрсөткүчтөрүн жана көрсөткүчтөрүн көрсөтөт.
- Instrument Strap Hole: For attaching a shoulder strap for hands-free operation.
- TEST баскычы: Жогорку тtage start button for insulation resistance tests.
- HOLD баскычы: Data hold button to freeze the current reading on the display.
- BLCTR Button: Backlight control button.
- Жогорку Voltage Индикатор: Illuminates when high voltagэ бар.
- Кубат которгучу: Turns the instrument ON/OFF.
- Функция баскычтары: Өлчөө функцияларын тандоо үчүн айлануучу которгуч.
- 2500V Insulation Resistance: Selects 2500V test voltage for insulation resistance.
- 1000V Insulation Resistance: Selects 1000V test voltage for insulation resistance.
- 500V Insulation Resistance: Selects 500V test voltage for insulation resistance.
- ACV AC Voltage: AC том тандайтtage өлчөө функциясы.
- DCV DC Voltage: Selects DC voltage өлчөө функциясы.
Figure 4: The MH16 features a durable silicone sheath, providing anti-drop protection and safeguarding the internal hardware from damage.
4. Орнотуу
4.1. Батареяны орнотуу
The MH16 is powered by 6 x 1.5V AA batteries. To install or replace batteries:
- Аспап өчүрүлгөнүн текшериңиз.
- Бирдиктин артындагы батарея отсегин табыңыз.
- Батарея уясынын капкагын ачыңыз.
- Бөлүмдүн ичинде көрсөтүлгөндөй, туура полярдуулукту (+/-) сактап, 6 AA батарейкасын салыңыз.
- Батарея уясынын капкагын бекем жабыңыз.
4.2. Сыноо линияларын туташтыруу
Connect the provided test leads to the appropriate input terminals on the MH16 based on the measurement you intend to perform. Always ensure a secure connection.
Figure 5: The MH16 comes with essential accessories including test leads, a user manual, and a protective carrying case.
5. Иштөө нускамалары
Before any measurement, ensure the instrument is powered on by rotating the Power Switch (12) to the ON position.
5.1. Measuring Insulation Resistance
This function is used to measure the insulation resistance of electrical equipment and wiring.
- Биринчи коопсуздук: Ensure the circuit under test is completely de-energized and isolated before connecting the tester. Wear high-voltage изоляциялоочу мээлейлер.
- Rotate the Function Knob (13) to the desired insulation resistance test voltage (500V, 1000V, же 2500V).
- Сыноо өткөргүчтөрүн туташтыруу:
- Connect the red test lead to the Line Terminal L (1).
- Connect the black test lead to the Ground Terminal E (4).
- басып, кармап туруңуз СЫНОО button (8) to initiate the high voltage output. The High Voltage Indicator (11) will illuminate.
- Read the insulation resistance value on the Backlit Digital Display (6).
- бошотуңуз СЫНОО button to stop the high voltage output. The instrument will automatically discharge the circuit. Wait for the discharge to complete before disconnecting.
5.2. DC Voltage (DCV)
Used for measuring direct current voltage.
- Rotate the Function Knob (13) to the DCV абалы (18).
- Connect the red test lead to the AC and DC Voltage Measurement V Terminal (3).
- Connect the black test lead to the Shielded Terminal G/AC Voltage Measurement Ground Terminal (2).
- Apply the test leads across the DC voltage булагы.
- DC томун окууtage мааниси дисплейде.
5.3. Өлчөө AC Voltage (ACV)
Used for measuring alternating current voltage.
- Rotate the Function Knob (13) to the ACV абалы (17).
- Connect the red test lead to the AC and DC Voltage Measurement V Terminal (3).
- Connect the black test lead to the Shielded Terminal G/AC Voltage Measurement Ground Terminal (2).
- Apply the test leads across the AC voltage булагы.
- AC томун окууtage мааниси дисплейде.
5.4. Data Hold and Backlight
- HOLD Button (9): Press this button to freeze the current reading on the display. Press it again to release the hold function.
- BLCTR Button (10): Press this button to turn the display backlight ON or OFF, improving visibility in low-light conditions.
5.5. Автоматтык өчүрүү
The MH16 features an automatic shutdown function to conserve battery life. If the instrument is idle for approximately 15 minutes, it will automatically power off. To resume operation, simply turn the Power Switch (12) OFF and then ON again.
6. Техникалык тейлөө
6.1. Тазалоо
Аспапты тазалоо үчүн, корпусту жарнама менен сүртүңүзamp cloth and a mild detergent. Do not use abrasives or solvents. Ensure the instrument is completely dry before use.
6.2. Батареяны алмаштыруу
When the low battery warning indicator appears on the display, replace all 6 AA batteries promptly to ensure accurate measurements and proper operation. Refer to section 4.1 for battery installation instructions.
6.3. Сактоо
If the instrument is not to be used for an extended period, remove the batteries to prevent leakage and damage. Store the instrument in a cool, dry place, away from direct sunlight and extreme temperatures.
7. Кыйынчылыктарды
If you encounter issues with your MH16, refer to the following common problems and solutions:
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Эч кандай дисплей же начар дисплей | Low or dead batteries; incorrect battery installation; instrument off. | Replace batteries; check battery polarity; ensure power switch is ON. |
| Так эмес окуулар | Incorrect function/range selected; poor test lead connection; external interference. | Verify function knob setting; ensure leads are securely connected; move away from strong electromagnetic fields. |
| "OL" же "OVER" көрсөтүлөт | Measurement exceeds selected range; open circuit. | Select a higher range if available; check for open circuit in the component/circuit being tested. |
| Жогорку тtage indicator remains on after test | Circuit not fully discharged. | Wait for automatic discharge to complete. Do not touch the circuit until the indicator is off. |
8. Техникалык шарттар
Detailed technical specifications for the MH16 Digital Multimeter Megohmmeter.
Figure 6: Comprehensive table detailing the functions, measurement ranges, and precision of the MH16, along with insulation resistance parameters.
Жалпы мүнөздөмөлөрү:
- Модель номери: TT-Aneng-MH16
- Бренд: TOOLTOP
- Кубат булагы: 6 х 1.5 В АА батарейкалар
- Автоматтык өчүрүү: Болжол менен 15 мүнөт кыймылсыздык
- Маалыматтарды сактоо: Ооба
- Арткы жарык экран: Ооба
- Төмөнкү кубаттуулук: Ооба
- Automatic Discharge: Ооба
- Материал: ABS/силикон
- Элемент Салмагы: 1 Kilogram (approx. 2.2 Pounds)
- Пакеттин өлчөмдөрү: 7.87 x 5.91 x 3.94 дюйм
- Түсү: Көп түстүү
- Техникалык мүнөздөмөлөрү: CE, RoHS
- Келип чыккан өлкө: Кытай
Өлчөө диапазону жана тактыгы:
| Функция | Диапазон | Тактык |
|---|---|---|
| Output Voltage | 500V/1000V/2500V | ±10% |
| ACV AC Voltage | 0V~700V | ±(1% + 6d) |
| DCV DC Voltage | 0V~1000V | ±(1% + 5d) |
| Изоляцияга каршылык | 1MΩ~50GΩ | (Refer to detailed table below) |
Insulation Resistance Parameters:
| Rated Voltage | Диапазон | Drop Resistance | Негизги тактык |
|---|---|---|---|
| Resistance 500V | 0.000~4.99GΩ | 1MΩ | ±20% |
| Resistance 1000V | 0.000~10.00GΩ | 2MΩ | ±20% |
| Resistance 2500V | 0.000~49.99GΩ | 5MΩ | ±20% |
Эскертүү: Параметрлер маалымдама үчүн гана болуп саналат жана конкреттүү жабдуулардын иш жүзүндөгү өлчөөлөрү басымдуулук кылат.
9. Кепилдик жана колдоо
9.1. Кепилдик маалыматы
The TOOLTOP MH16 Digital Multimeter Megohmmeter comes with a 1-year EU spare part availability duration from the date of first availability (April 21, 2025). For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact the manufacturer directly.
9.2. Кардарларды колдоо кызматы
For technical assistance, troubleshooting beyond this manual, or warranty claims, please contact TOOLTOP Official customer support. Refer to your product packaging or the seller's information on the purchase platform for contact details.
Өндүрүүчү: TOOLTOP
