1. Kirish
This manual provides comprehensive instructions for the installation, operation, and maintenance of the EARU Electric 3-Phase Voltage and Overcurrent Protector, Model EARU-1008. This device is designed to safeguard 3-phase electrical systems by continuously monitoring voltage and current, offering protection against over-voltage, jild ostidatage, overcurrent, and phase failure. It is suitable for industrial and commercial applications requiring reliable electrical monitoring and protection.
2. Xavfsizlik ma'lumotlari
OGOHLANTIRISH: Elektr toki urishi xavfi. O'rnatish va texnik xizmat ko'rsatish faqat malakali mutaxassislar tomonidan amalga oshirilishi kerak.
- Qurilmani o'rnatish yoki xizmat ko'rsatishdan oldin har doim elektrdan uzing.
- Elektr toki urishining oldini olish uchun topraklamaning to'g'riligini ta'minlang.
- Barcha simlarning ulanishlari sxemaga muvofiq xavfsiz va to'g'ri ekanligiga ishonch hosil qiling.
- Agar qurilma shikastlangan bo'lsa, uni ishlatmang.
- Barcha mahalliy va milliy elektr qoidalariga rioya qiling.
3. Mahsulot tugadiview
3.1. Asosiy xususiyatlar
- Real-time 3-Phase Monitoring: Displays live voltage (L1, L2, L3) and current (L1, L2, L3) values.
- Keng qamrovli himoya: Safeguards against over-voltage, jild ostidatage, overcurrent, and phase failure.
- Sozlanishi mumkin bo'lgan parametrlar: User-configurable settings for protection thresholds and recovery delays.
- Automatic Phase Failure Reset: Detects and automatically resets after phase anomalies.
- High-Visibility LED Display: Bright red LED for clear readings in various lighting conditions.
- DIN temir yo'l o'rnatilishi: Easy integration into standard electrical panels.
- Clear Terminal Labeling: Simplified installation with clearly marked input and output terminals.
3.2. Components and Display
The device features a clear LED display and intuitive control buttons for configuration. The display shows real-time voltage and current for each phase, along with indicators for protection status.

3.2.1-rasm: Old view of the EARU Electric Voltage Protector, showing the LED display for L1, L2, L3 voltage and current, along with control buttons (SET, Up, Down, Power) and protection indicators. Terminal labels for N, L1, L2, L3 (IN and OUT) are also visible.

3.2.2-rasm: Perspektiv view highlighting the product features and the input/output terminals (N, L1, L2, L3) at the top and bottom of the device. This image emphasizes the physical layout and connection points.
4. O'rnatish va o'rnatish
4.1. O'rnatish
The EARU-1008 is designed for DIN rail mounting. Securely attach the device to a standard 35mm DIN rail within an electrical enclosure.
4.2. Simli ulanishlar
Refer to the wiring diagram below for correct connections. Ensure all connections are tight and properly insulated.
- Connect the incoming neutral (N) and phase lines (L1, L2, L3) to the 'IN' terminals.
- Connect the outgoing neutral (N) and phase lines (L1, L2, L3) to the 'OUT' terminals.
- Quvvatni qo'llashdan oldin barcha ulanishlarni ikki marta tekshiring.

4.2.1-rasm: Detailed wiring diagram for the EARU Electric Voltage Protector, showing connections for N, L1, L2, L3 for both input and output. The diagram illustrates how to integrate the protector into a 3-phase electrical system.
5. Foydalanish bo'yicha ko'rsatmalar
5.1. Dastlabki quvvatlanish
Once wired, apply power to the device. The LED display will illuminate, showing the real-time voltage and current for each phase.
5.2. Displey ko'rsatkichlari
- V: jildtage ko'rsatish.
- A: Joriy displey.
- Quvvat: Output indication.
- >V: Haddan tashqari jildtage ko'rsatma.
- <V: Jild ostidatage ko'rsatma.
- >Men: Over-current indication.
5.3. Parametrlarni o'rnatish
Use the 'SET' button to enter the configuration menu and the 'Up' and 'Down' keys to adjust values. Press 'SET' again to confirm and move to the next parameter. Hold 'SET' for 3 seconds to enter settings mode.

5.3.1-rasm: A detailed guide to setting various protection parameters on the EARU Electric Voltage Protector. This includes overvoltagetage, overcurrent, and recovery delay settings, with default values and adjustment ranges.
Key adjustable parameters include:
- Haddan tashqari kuchlanishtage Himoya sozlamalari: Range 230-300V (Default 270V).
- Haddan tashqari kuchlanishtage Protection Recover Setting: Range 225-295V (Default 265V).
- Haddan tashqari kuchlanishtage Recovery Delay: Range 1-500s (Default 30s).
- Haddan tashqari kuchlanishtage Trip Delay: Range 0.1-30s (Default 1.0s).
- Undervolvoltage Himoya sozlamalari: Range 140-210V (Default 170V).
- Undervolvoltage Protection Recover Setting: Range 145-215V (Default 175V).
- Undervolvoltage Trip Delay: Range 0.1-30s (Default 1.0s).
- Haddan tashqari oqimdan himoya qilish sozlamalari: Range 1-63A (Default 30A).
- Overcurrent Trip Delay: Range 0.1-30s (Default 1.0s).
- jildtage & Current Manual Error Calibration: Adjust for accuracy, range -9.5% to +9.5% (Default 0%).
- Power-on Delay Setting: Adjustable Range: 1-500S (Default: 10s).
5.4. Manual ON/OFF
The power button allows for manual switching of the device output.
6. Xizmat ko'rsatish
The EARU-1008 is designed for minimal maintenance. However, periodic checks are recommended:
- Qurilmani toza va chang va qoldiqlardan toza tuting.
- Periodically inspect wiring connections for tightness and signs of wear.
- Haddan tashqari qizib ketishining oldini olish uchun qurilma atrofida yetarli shamollatishni ta'minlang.
7. Muammolarni bartaraf qilish; nosozliklarni TUZATISH
If the device is not functioning as expected, consider the following:
- Displey yo'q / quvvat yo'q: Check the main power supply and all wiring connections.
- Protection Trip: Identify the active protection indicator (>V, <V, >I). Check the corresponding voltage or current levels. The device will automatically reset once conditions return to normal, based on configured recovery delays.
- Phase Failure: The device automatically detects and responds to phase failures, initiating a cut-off and auto-reset once the phase is restored.
- Noto'g'ri o'qishlar: If readings appear inaccurate, consider performing a manual error calibration as described in Section 5.3.

7.1-rasm: This image highlights the various protection features of the EARU Electric Voltage Protector, including phase failure cut-off, low voltage cut-off, high voltage cut-off, overload cut-off, phase sequence cut-off, and auto-reset on normal conditions. These are key aspects for troubleshooting protection trips.
8. Texnik shartlar
| Parametr | Qiymat |
|---|---|
| Brend | EARU |
| Model | EARU-1008 |
| Nominal ta'minot jildtage | AC 3*220V (N-L1/L2/L3) / 440V |
| Nominal chastota | 50/60 Gts |
| Over Current Protection Setting Range | 1-63A (Default 30A) |
| Voltage Protection Setting Range | 230-300V (Default 270V) |
| Jild ostidatage Protection Setting Range | 140-210V (Default 170V) |
| Mahsulot o'lchamlari | 20 x 10 x 20 sm |
| Element og'irligi | 450 gr |
| O'rnatish turi | DIN temir yo'li |

8.1-rasm: This image provides a visual representation of the EARU Electric Voltage Protector's dimensions and a table of key technical specifications, including voltage, frequency, and protection ranges.
9. Kafolat va qo'llab-quvvatlash
9.1. Kafolat
The EARU Electric Voltage Protector (Model EARU-1008) comes with a 1 yillik ishlab chiqaruvchi kafolati sotib olingan kundan boshlab, normal foydalanish sharoitida materiallar va ishlov berishdagi nuqsonlarni qoplash. Iltimos, kafolat da'volari uchun sotib olinganligingizni tasdiqlovchi hujjatingizni saqlab qo'ying.
9.2. Mijozlarni qo'llab-quvvatlash
For technical assistance, troubleshooting, or warranty inquiries, please contact EARU customer support through your retailer or the official EARU website. Provide your model number (EARU-1008) and a detailed description of the issue for efficient service.