1. Įvadas
The TOOLTOP MH13 is a digital insulation resistance tester, also known as a megohmmeter, designed for measuring insulation resistance. It is an essential instrument for evaluating the insulation integrity of large transformers, generators, high-voltage motors, power capacitors, power cables, and arresters. This manual provides detailed instructions for the safe and effective use of the MH13.
1.1 vaizdas: The TOOLTOP MH13 Digital Insulation Megohmmeter, highlighting its capabilities for Polarization Index (PI) and Absorption Ratio (DAR) measurements, and 100 sets of data storage.
2. Saugos informacija
Always adhere to the following safety precautions to prevent personal injury and damage to the instrument:
- Prieš naudodami įrankį, perskaitykite ir supraskite visas instrukcijas.
- Do not use the instrument if it appears damaged or operates abnormally.
- Ensure the test leads are in good condition, without cracks or damaged insulation.
- Do not touch the test leads or the circuit under test during measurement, especially during high-voltage išvestis.
- Always disconnect power from the circuit under test before connecting or disconnecting test leads.
- Verify the instrument's voltage rating matches the circuit being tested.
- Kai pasirodys išsikrovusių baterijų indikatorius, nedelsdami pakeiskite baterijas.
- Do not operate the instrument in explosive atmospheres or near flammable materials.
- Aptarnavimą turėtų atlikti tik kvalifikuotas personalas.
3. Produkto ypatybės
- Digital Megohmmeter with 2000 Counts display.
- Low-loss, high-ratio inductance energy storage DC voltage keitiklis.
- Naudoja skaitmeninį LCR tiltelį varžos matavimui ir izoliacijos varžos bandymui.
- Advanced design for stable performance.
- User-friendly operation with a shoulder strap for portability.
- Anti-drop silicone casing, kad būtų užtikrintas didesnis patvarumas ir apsauga.
3.1 vaizdas: The TOOLTOP MH13 featuring its anti-drop silicone casing, designed to protect the device from impacts and ensure secure measurement.
4. Pakuotės turinys
Išpakuodami patikrinkite, ar yra visi toliau išvardyti daiktai:
- MH13 Digital Insulation Resistance Tester
- Pakavimo dėžutė
- Insulation Resistance Tester Manual
- Alligator Clips (Red, Black)
- Sandėliavimo krepšys
- Test Leads (Red, Black)
- Signal Shielding Wire
4.1 vaizdas: Contents of the TOOLTOP MH13 package, including the main unit, test leads, alligator clips, storage bag, and user manual.
5. Sąranka
5.1 Akumuliatoriaus įdėjimas
The MH13 requires 8 AA5 batteries for operation. To install or replace batteries:
- Suraskite akumuliatoriaus skyrių įrenginio gale.
- Atidarykite akumuliatoriaus skyriaus dangtelį.
- Insert 8 AA5 batteries, ensuring correct polarity (+/-).
- Saugiai uždarykite akumuliatoriaus skyriaus dangtelį.
5.2 Bandymo laidų prijungimas
Connect the test leads to the appropriate input terminals on the MH13. For most measurements, the red lead connects to the 'LINE' terminal and the black lead connects to the 'EARTH (G)' terminal.
6. Naudojimo instrukcijos
6.1 Maitinimo įjungimas/išjungimas
Paspauskite raudoną maitinimo mygtuką (U) to turn the device on or off. The device features an 'Auto power off' function to conserve battery life.
6.2 Izoliacijos varžos matavimas
This function measures the insulation resistance of electrical systems and components.
- Ensure the circuit under test is de-energized and safely discharged.
- Connect the red test lead to the 'LINE' terminal and the black test lead to the 'EARTH (G)' terminal on the MH13.
- Connect the test leads to the two points of the component or circuit where insulation resistance is to be measured.
- Pasirinkite norimą išėjimo tūrįtage (250V, 500V/1000V, or 2000V/2500V) using the appropriate buttons or selector.
- Paspauskite „TESTAS' button to initiate the measurement. The display will show the insulation resistance value.
- Atleiskite „TESTAS' button to stop the measurement. The circuit under test will automatically discharge.
6.1 vaizdas: Demonstrates connecting the TOOLTOP MH13 for insulation resistance measurement, showing the test leads connected to an electrical motor and the display indicating a resistance value.
6.3 AC/DC ttage Matavimas
The MH13 can also measure AC and DC voltages.
- In the standby interface, short press the 'PASIRINKTI' button to enter the AC voltage function. Press it again to switch to the DC voltage funkcija.
- Connect the red test lead to the 'AC/DC 600V' terminal and the black test lead to the 'EARTH (G)' terminal.
- Insert the test lead probes into the circuit to be measured.
- Perskaitykite ttage reikšmė rodoma ekrane.
6.2 vaizdas: Illustrates the process of measuring AC voltage (left) and DC voltage (right) using the TOOLTOP MH13, showing proper lead connection and display readings.
6.4 Polarization Index (PI) and Absorption Ratio (DAR)
The Polarization Index (PI) and Absorption Ratio (DAR) are critical for assessing the quality and aging problems of insulation in electrical equipment.
- DAR (Dielectric Absorption Ratio): Ratio of insulation resistance at 60 seconds to insulation resistance at 30 seconds.
- PI (Polarization Index): Ratio of insulation resistance at 10 minutes to insulation resistance at 1 minute.
The MH13 can automatically compute DAR and PI. To perform these tests:
- Set up the insulation resistance test as described in Section 6.2.
- Paspauskite „PI/DAR' button.
- Paspauskite „TESTAS' button and hold it for the duration of the test (e.g., 10 minutes for PI). The device will automatically record the necessary resistance values at 1 minute and 10 minutes.
- The calculated PI and DAR values will be displayed. Refer to the judgment standard table for interpretation.
6.3 vaizdas: Explains the Polarization Index (PI) measurement process, showing 1-minute and 10-minute insulation resistance readings and a table for interpreting PI values (Most, Good, Warn, Bad).
6.5 Duomenų saugojimas ir atkūrimas
The MH13 supports storing up to 100 sets of data. Use the 'MEM READ' and 'HOLD' buttons to manage stored measurements. Consult the detailed manual for specific steps on saving and recalling data.
7. Priežiūra
7.1 Valymas
Nuvalykite priemonę su reklamaamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the device is dry before storage or use.
7.2 Akumuliatoriaus keitimas
Replace batteries as described in Section 5.1 when the low battery indicator appears on the display. Remove batteries if the instrument will not be used for an extended period.
7.3 Saugykla
Store the MH13 in a cool, dry place, away from direct sunlight and extreme temperatures. Use the provided storage bag to protect it from dust and physical damage.
8. Problemų sprendimas
- Nėra galios: Patikrinkite akumuliatoriaus įdėjimą ir įsitikinkite, kad akumuliatoriai įkrauti.
- Netikslūs rodmenys: Verify test lead connections, ensure proper function selection, and check for external interference.
- Rodymo klaida: Išjunkite ir vėl įjunkite įrenginį. Jei klaida išlieka, susisiekite su klientų aptarnavimo tarnyba.
- Aukštas tomastage Įspėjimas: Ensure the circuit under test is de-energized before connecting leads for insulation resistance tests.
9. Specifikacijos
| Parametras | Vertė |
|---|---|
| Išėjimas ttage | 250V, 500V/1000V, 2000V/2500V |
| Measuring Range (250V) | 1MΩ-10GΩ (±(5%+10d)) |
| Measuring Range (500V/1000V) | 2MΩ-20GΩ (±(5%+10d)) |
| Measuring Range (2000V/2500V) | 5MΩ-40GΩ (±(5%+10d)) |
| Trumpojo jungimo srovė | 1.8 mA |
| AC ttage | 10-600V (±(1%+5d)) |
| DC ttage | 10-600V (±(0.8%+5d)) |
| Atsparumo diapazonas | 1MΩ-200GΩ |
| Maksimalus skaičius | 2000 skaičiavimų |
| Baterijos tipas | AA5 battery*8 |
| Medžiaga | Silica gel/ABS |
| Svoris | 640g |
| Rašiklio medžiaga | PVC/brass |
| Overall Length of Test Leads | 108 cm |
| Ekranas | HD backlit screen |
| Duomenų saugykla | 100 komplektai |
| Absorption Ratio (DAR) | Palaikoma |
| Poliarizacijos indeksas (PI) | Palaikoma |
| Automatinis tvarkymas | Palaikoma |
| Automatinis iškrovimas | Palaikoma |
| Bandymas Voltage Ekranas | Palaikoma |
| High Pressure Indication | Palaikoma |
| Measurement Time Display | Palaikoma |
| Žemas tomastage Indikacija | Palaikoma |
| Nugaros palaikymas | Palaikoma |
| Sertifikatai | CE, RoHS |
9.1 vaizdas: Detailed technical specifications and parameters for the TOOLTOP MH13, including output voltage, measuring ranges, precision, and features.
10. Garantija ir palaikymas
The TOOLTOP MH13 is manufactured by TOOLTOP. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official TOOLTOP websvetainėje. Prašome išsaugoti pirkimo įrodymą garantiniams reikalavimams.
