1. Sissejuhatus
The LARIAU TS58 is a digital insulation resistance tester designed for measuring insulation resistance in various electrical equipment and insulating materials. This includes transformers, motors, cables, switches, and other electrical appliances. It is suitable for maintenance, repair, and testing applications.
This instrument features automatic voltage release, high stability, and reliability. It offers a maximum display count of 2000, 100 groups of data storage, and an insulation resistance measurement range of 0.1 MΩ to 10 GΩ. It also includes AC/DC voltage measurement capabilities and advanced DAR (Dielectric Absorption Ratio) and PI (Polarization Index) measurements for more accurate insulation assessment.

Joonis 1: Esiosa view of the LARIAU TS58 Digital Insulation Resistance Tester.
2. Ohutusalane teave
Please read this manual carefully before using the instrument. Adhere to all safety warnings and operating instructions to prevent electric shock, injury, or damage to the instrument.
- Always ensure the instrument is in good working condition before use.
- Jälgige suurt mahtutage indication on the display, which reminds you of safe operation during measurements.
- Do not operate the instrument in wet environments or with wet hands.
- Replace batteries promptly when the low battery indication appears to ensure accurate readings and safe operation.
- Ärge püüdke mõõta voltages or resistances beyond the specified ranges.
- Ensure proper connection of test leads before initiating any measurement.
3. Toote lõppview
The TS58 features a clear LCD backlit screen for easy reading, a robust dustproof and moisture-proof shell, a foldable bracket for convenient positioning, and comes with a zipper carry bag for portability.

Figure 2: Key features of the TS58, including the LCD screen, protective casing, and accessories.
3.1 Juhtnupud ja ekraan
The device includes a large digital LCD display, function buttons for selecting measurement modes, adjusting output voltage, and initiating tests. It also has input terminals for test leads.

Joonis 3: Üleview of the TS58's main functions and display elements.
4. Seadistamine
4.1 Aku paigaldamine
The TS58 is powered by 8 x 1.5V AA/LR6 batteries (not supplied). To install or replace batteries:
- Otsige üles patareipesa instrumendi tagaküljel.
- Avage patareipesa kaas.
- Insert 8 AA/LR6 batteries, ensuring correct polarity (+/-).
- Sulgege akupesa kaas kindlalt.
A low battery indication will appear on the display when batteries need replacement.
5. Kasutusjuhised
The TS58 is designed for measuring insulation resistance and AC/DC voltage. Always ensure the test leads are securely connected to the instrument and the circuit under test.

Figure 4: The TS58 tester with test leads, ready for use.
5.1 Isolatsioonitakistuse mõõtmine
- Connect the test leads to the appropriate terminals on the TS58 and to the equipment under test.
- Lülitage pill sisse.
- Use the 'SELECT' button to choose the insulation resistance measurement mode.
- Reguleerige väljundmahtutage (50V/100V/250V/500V/1000V) using the up/down buttons as required for your test.
- Press the 'TEST' button to initiate the measurement. The high voltage indikaator süttib.
- Read the insulation resistance value on the LCD screen.
- After the test, the instrument automatically discharges the circuit.
5.2 AC/DC Voltage Mõõtmine
- Connect the test leads to the appropriate terminals on the TS58 and to the voltage allikas.
- Lülitage pill sisse.
- Use the 'SELECT' button to choose the AC or DC voltage mõõtmisrežiim.
- Lugege kdtage value on the LCD screen. The measurement range is 10V-600V.
5.3 DAR and PI Index Measurement
The DAR (Dielectric Absorption Ratio) and PI (Polarization Index) measurements help assess the quality and aging status of insulation, mitigating the effects of temperature, humidity, and interference currents.
- Perform an insulation resistance test as described in section 5.1.
- Press the 'PI/DAR' button. The instrument will automatically compute and display the DAR and PI values.
- Refer to industry standards for interpreting DAR and PI values to evaluate insulation condition.
5.4 Andmete salvestamine ja tagasikutsumine
The TS58 can store up to 100 groups of measurement data.
- To save data: After a measurement, press the 'HOLD*' button to hold the current reading, then press 'MEM READ' to save it. (Note: The exact sequence might vary; refer to the full manual for precise steps if available).
- To recall data: Press the 'MEM READ' button and use the up/down arrows to navigate through stored data groups.

Figure 5: The TS58 in practical application scenarios.
6. Hooldus
6.1 Puhastamine
Wipe the instrument's exterior with a soft, damp lapiga. Ärge kasutage abrasiivseid puhastusvahendeid ega lahusteid. Veenduge, et seadmesse ei satuks niiskust.
6.2 Säilitamine
When not in use for extended periods, remove the batteries to prevent leakage. Store the instrument in its zipper carry bag in a dry environment, away from direct sunlight and extreme temperatures. The recommended storage environment is -10~50℃, <75%RH.
7. Veaotsing
- Instrument does not power on: Kontrollige patareide paigaldust ja veenduge, et patareid poleks tühjad. Vajadusel vahetage need välja.
- Ebatäpsed näidud:
- Veenduge, et testjuhtmed on korralikult ühendatud ja pole kahjustatud.
- Verify the correct measurement mode and output voltage are selected.
- Consider environmental factors like temperature and humidity, especially for insulation resistance measurements.
- Suur mahttage warning persists after test: The instrument has an automatic voltage release function. If the warning persists, ensure the circuit under test is fully discharged before handling.
8. Tehnilised andmed
The following table details the technical specifications of the LARIAU TS58 Digital Insulation Resistance Tester.

Figure 6: Detailed technical parameters of the TS58.
| Parameeter | Väärtus |
|---|---|
| Värv | Punane + hall |
| Materjal | ABS + silikoon |
| Ekraan | LCD taustvalgustusega ekraan |
| Maksimaalne arv | 2000 |
| Väljund Voltage | 50V/100V/250V/500V/1000V |
| Resistance Measuring Range | 0.1 MΩ ~ 10 GΩ |
| AC/DC kdtage Mõõteulatus | 10 V-600 V |
| AC kdtage Sagedus | 40-70 Hz |
| Andmete salvestamine | 100 rühma |
| Lühisvool | <1.8 mA |
| Toiteallikas | 8 * 1.5 V AA/LR6 (not supplied) |
| Töökeskkond | 0 ~35℃, <75%RH, <2000m |
| Säilituskeskkond | -10~50℃, <75%RH |
| Kauba suurus | 180 * 140 * 70 mm / 7.09 * 5.51 * 2.76 tolli |
| Toote kaal (ilma akuta) | 623 g / 1.37 naela |
9. Garantii ja tugi
Teave toote garantii ja klienditoe kohta on tavaliselt esitatud tootepakendil või tootja ametlikul teabelehel. website. Please refer to those resources for details on warranty coverage, technical assistance, and service inquiries.
For further assistance, please contact LARIAU customer support through their official channels.
