1. Pendahuluan
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.

Gambar 1: Depan view of the LARIAU TS58 Digital Insulation Resistance Tester.
2. Informasi Keselamatan
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.
- Observe the high voltage 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.
- Jangan mencoba mengukur voltagatau hambatan di luar rentang yang ditentukan.
- Ensure proper connection of test leads before initiating any measurement.
3. Produk Lebihview
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 Kontrol dan Tampilan
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.

Gambar 3: Lebihview of the TS58's main functions and display elements.
4. Pengaturan
4.1 Pemasangan Baterai
The TS58 is powered by 8 x 1.5V AA/LR6 batteries (not supplied). To install or replace batteries:
- Temukan tempat baterai di bagian belakang instrumen.
- Buka penutup ruang baterai.
- Insert 8 AA/LR6 batteries, ensuring correct polarity (+/-).
- Tutup penutup ruang baterai dengan rapat.
A low battery indication will appear on the display when batteries need replacement.
5. Petunjuk Pengoperasian
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 Pengukuran Resistansi Isolasi
- Connect the test leads to the appropriate terminals on the TS58 and to the equipment under test.
- Nyalakan instrumen.
- Use the 'SELECT' button to choose the insulation resistance measurement mode.
- Sesuaikan volume keluarantage (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 voltagindikator ini akan menyala.
- Read the insulation resistance value on the LCD screen.
- After the test, the instrument automatically discharges the circuit.
5.2 AC/DC Voltage Pengukuran
- Connect the test leads to the appropriate terminals on the TS58 and to the voltagsumber.
- Nyalakan instrumen.
- Use the 'SELECT' button to choose the AC or DC voltage mode pengukuran.
- Baca vol.tage 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 Penyimpanan dan Pengambilan Data
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. Pemeliharaan
6.1 Pembersihan
Wipe the instrument's exterior with a soft, damp kain. Jangan gunakan pembersih abrasif atau pelarut. Pastikan tidak ada kelembapan yang masuk ke dalam perangkat.
6.2 Penyimpanan
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. Penyelesaian masalah
- Instrument does not power on: Periksa pemasangan baterai dan pastikan baterai tidak habis. Ganti jika perlu.
- Pembacaan yang tidak akurat:
- Pastikan kabel uji terhubung dengan benar dan tidak rusak.
- Verify the correct measurement mode and output voltage dipilih.
- Consider environmental factors like temperature and humidity, especially for insulation resistance measurements.
- Volume tinggitage 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. Spesifikasi
The following table details the technical specifications of the LARIAU TS58 Digital Insulation Resistance Tester.

Figure 6: Detailed technical parameters of the TS58.
| Parameter | Nilai |
|---|---|
| Warna | Merah + Abu-abu |
| Bahan | ABS + Silikon |
| Layar | Layar Lampu Latar LCD |
| Hitungan Maksimum | 2000 |
| Volume Keluarantage | 50V/100V/250V/500V/1000V |
| Resistance Measuring Range | 0.1 MΩ ~ 10 GΩ |
| Tegangan AC/DCtage Rentang Pengukuran | 10 V-600 V |
| AC Jiltage Frekuensi | Frekuensi 40-70Hz |
| Penyimpanan Data | 100 kelompok |
| Arus Hubungan Pendek | <1.8mA |
| Catu Daya | 8 * 1.5 V AA/LR6 (not supplied) |
| Lingkungan Kerja | 0 ~35℃, <75%RH, <2000m |
| Lingkungan Penyimpanan | -10~50℃, <75%RH |
| Ukuran Barang | 180*140*70mm / 7.09*5.51*2.76 inci |
| Berat Barang (tanpa baterai) | 623 gram / 1.37 pon |
9. Garansi dan Dukungan
Informasi mengenai garansi produk dan dukungan pelanggan biasanya tercantum dalam kemasan produk atau di situs web resmi produsen. webSilakan merujuk ke sumber daya tersebut untuk detail tentang cakupan garansi, bantuan teknis, dan pertanyaan layanan.
For further assistance, please contact LARIAU customer support through their official channels.
