1. Вовед и безбедносни информации
This manual provides essential information for the safe and efficient operation of your Din Rail AC Power Meter. Please read it thoroughly before installation and use.
Важни безбедносни забелешки:
- Овој производ е погоден само за внатрешна употреба.
- The product is designed for Alternating Current (AC) circuits only.
- Ensure that the measured voltage and current do not exceed the calibration range specified in the product parameters.
- Критично: Connect the wires correctly according to the wiring diagram. Incorrect wiring can cause severe damage to the device and pose a safety hazard.
- Product dimensions and colors are subject to the actual product.
2. Клучни карактеристики
The KWS-303 series Din Rail AC Power Meter offers a comprehensive solution for monitoring electrical parameters with advanced features:
- 8-во-1 дигитален дисплеј: Истовремено прикажува Voltage, Current, Power, Frequency, Power Factor, Active Energy, Timing, and Temperature on a single screen for real-time monitoring.
- TFT екран во боја со висока дефиниција: Features a 0.96-inch TFT color screen with a wide viewing angle and high contrast, ensuring easy readability even in low-light conditions.
- Mobile Remote Control (KWS-303WF only): Supports WiFi networking and cloud remote control via a mobile application (Smart Life APP or Tuya Smart App), allowing you to monitor and control devices anytime, anywhere. Multiple timed data sets can be added for automated power management.
- Standard Din Rail Mounting: Designed for standard guide rail installation, offering convenient, screw-free, and fastener-fixed setup.
- Компактна и лесна инсталација: Small size allows for installation in distribution boxes. Simple wiring makes it manageable without professional electrical assistance.
- Широк опсег на примена: Ideal for use in high and low power distribution cabinets, factories, warehouses, commercial buildings, shopping malls, and residential settings.



3. Технички спецификации
| Параметар | KWS-303WF | KWS-303L | KWS-303 |
|---|---|---|---|
| Број на модел | KWS-303WF | KWS-303L | KWS-303 |
| Voltagе опсег | AC 100-290V | AC 100-290V | AC 85-290V |
| Тековен опсег | 0-40А | 0-40А | 0-40А |
| Опсег на моќност | 0-12KW | 0-12KW | 0-12KW |
| Временски опсег | 99 дена | 99 дена | 99 дена |
| Опсег на електрична енергија | 0-9999 KWH | 0-9999 KWH | 0-9999 KWH |
| Температурен опсег | -20~150 °C | -20~150 °C | -20~150 °C |
| Опсег на фреквенција | 50-60 Hz | 50-60 Hz | 50-60 Hz |
| Фактор на моќност | 0.00-1.00 PF | 0.00-1.00 PF | 0.00-1.00 PF |
| Исклучување на меморијата | Да | Да | Да |
| Overvoltagд Заштита | Да | Да | Да |
| Подволtagд Заштита | Да | Да | Да |
| Заштита од прекумерна температура | Да | Да | Да |
| Прекинувач за тајминг | АПП Да | бр | бр |
| Прилагодување на осветленоста на екранот | Да | Да | Да |
| Флип на екранот | Да | Да | Да |
| Ресетирање на батеријата | Да | Да | Да |
| Ресетирање на тајмерот | Да | Да | Да |
| Wi-Fi | Да | бр | бр |
| Табела со крива | АПП Да | PC Yes | бр |
| 485 Комуникација | бр | Да | бр |
| Димензии | 86*83*25мм | ||
| Направи сам за себе | Електрични | ||
| Тип на дисплеј | Само дигитални | ||
| Фаза | Еднофазен | ||
| Напојување | AC | ||
Note: All data and parameters are for reference only.


4. Содржина на пакетот
Upon opening your package, you should find:
- 1 x Din Rail AC Monitor (KWS-303, KWS-303L, or KWS-303WF model as ordered)
5. Инсталација
5.1 Монтирање
The KWS-303 series meters are designed for standard Din Rail mounting. No screws or fasteners are required for installation; simply snap the device onto the Din Rail.


5.2 Дијаграм за поврзување
Ensure all power is disconnected before attempting any wiring. Connect the input and output wires as shown in the diagram below. The blue line represents the Zero line (N), and the red line represents the Firing line (L).
- Овој производ е погоден за внатрешна употреба.
- This product is suitable for communication.
- Измерениот волtage и струјата не смеат да го надминуваат опсегот на калибрација.
- Be sure to connect the cables correctly.

6. Почетно поставување и конфигурација
6.1 Работа на екранот
The meter's display provides real-time data. The buttons below the screen allow for navigation and settings adjustments.

6.2 Setting Function Operation
To access the setting menu, hold down the ON/OFF key for 5 seconds. Use the '+' and '-' buttons to navigate and adjust values.
- Чекор 1: In the system settings page, click the '-' key to move the cursor to the overvoltage protection position. Then press ON/OFF to select the value, then press '+' to adjust it to the value you need. Then press ON/OFF to save the adjustment, and then press '+' to select other settings.
- Чекор 2: If you do not need to set, press the '-' key to move the cursor to the exit position, and then press ON/OFF to return to the home page.
- Чекор 3: All following settings (Overvoltage заштита, Undervoltage protection, Overcurrent protection, Overload protection, Power protection, Overtemperature protection, Power-off ultra-low, Screen brightness, Screen saver time, Screen flip, Language setting, Timing off, Timing on, Data clear, Factory Settings) are adjusted in the same way.

6.3 WiFi Connection (KWS-303WF only)
For models with WiFi functionality (KWS-303WF), follow these steps to connect to the cloud remote control:
- Чекор 1: Download the Smart Life APP or Tuya Smart App from your mobile app store.
- Чекор 2: For WiFi connection or reset operation mode: Long press the '+' button under the home screen display until the WiFi sign flashes in the upper right corner of the screen. Then, open the mobile APP for connection.

7. Операција
7.1 Reading Data
Once installed and powered on, the meter will automatically display the 8 electrical parameters on its TFT color screen. You can cycle through different views or access detailed information using the control buttons.
7.2 Mobile Remote Control (KWS-303WF only)
After successfully connecting the KWS-303WF model to the Smart Life or Tuya Smart App, you can remotely monitor and control the device. This includes viewing real-time data, setting timing switches, and managing multiple devices.


7.3 Share Management (KWS-303WF only)
The mobile application allows for share management, enabling multiple users to control the same device or a single user to control multiple devices. This feature is useful for household or small business environments.

8. Одржување
- Одржувајте го уредот чист и без прашина. Користете мека, сува крпа за чистење.
- Избегнувајте изложување на уредот на екстремни температури или влажност.
- Do not attempt to open or repair the device yourself, as this will void the warranty and may cause damage or injury.
- Редовно проверувајте ги поврзувањата на жиците за да се осигурате дека се безбедни.
9 Смена на проблеми
- Без дисплеј/напојување: Проверете ги приклучоците за напојување и жици. Обезбедете волtage е во наведениот опсег.
- Неточни читања: Verify that the wiring is correct (Zero line and Firing line). Ensure the current and voltage are within the meter's operational range.
- WiFi Connection Issues (KWS-303WF): Ensure your router is 2.4GHz (5GHz is not supported). Check that the WiFi signal is strong. Try resetting the meter's WiFi by long-pressing the '+' button until the WiFi icon flashes, then re-attempt connection via the app.
- Копчињата не реагираат: Ensure the device is powered on. If the issue persists, try a power cycle (turn off and on).
10. Кориснички совети
- For optimal performance and accurate readings, ensure the meter is installed in a stable environment away from direct heat sources or excessive vibrations.
- Utilize the mobile app's timing functions (KWS-303WF) to automate power control for appliances, saving energy and enhancing convenience.
- Regularly check the displayed parameters to identify any unusual power consumption patterns or potential electrical issues in your system.
11. Гаранција и поддршка
For any technical assistance, warranty claims, or support inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.





