1. Киришүү
The Walfront PZEM-022 is a multi-function AC digital meter designed for measuring electrical parameters such as voltage, current, active power, energy, frequency, and power factor. It features a large LCD display with backlight, an overload alarm function, and data storage capability. This manual provides detailed instructions for the safe and effective use of your PZEM-022 meter.
2. Коопсуздук боюнча маанилүү маалымат
Please read and understand all safety warnings and instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- This module is designed for үй ичинде гана колдонуу. Do not use it outdoors or in wet environments.
- The applied load must not exceed the rated power of 100A/22000W. Overloading can damage the device and pose a safety risk.
- камсыз кылуу wiring order is correct as per the provided diagrams. Incorrect wiring can lead to malfunction or damage.
- All electrical work should be performed by a qualified electrician or knowledgeable individual.
- Кандайдыр бир туташтырууларды же ажыратууларды жасоодон мурун электр кубатынан ажыратыңыз.
3. Продукт бүтүп калдыview
The Walfront PZEM-022 meter consists of the main display unit and a closed-type current transformer (CT). The display unit shows various electrical parameters, while the CT measures the current flowing through the circuit.
Figure 3.1: Walfront PZEM-022 AC Digital Meter and Closed Type Current Transformer.
Figure 3.2: Physical dimensions of the PZEM-022 meter (approx. 9cm x 5cm x 2.5cm).
4. Техникалык шарттар
| Параметр | Нарк |
|---|---|
| Operating Voltage | 80 ~ 260VAC |
| Test Voltage | 80 ~ 260VAC |
| Учурдагы рейтинг | 100A |
| Номиналдуу кубаттуулук | 100A/22000W |
| Иштөө жыштыгы | 45-65 Гц |
| Өлчөө тактыгы | 1.0 класс |
| Продукциянын өлчөмдөрү (L x W x Y) | 9 x 5 x 2.5 см (3.5 x 2 x 1 дюйм) |
| КТ кабелинин узундугу | 19 см (7.5 дюйм) |
| Элемент Салмагы | Болжол менен. 110г (3.9oz) |
5. Орнотуу жана орнотуу
Proper installation is crucial for the accurate and safe operation of the PZEM-022 meter. Refer to the wiring diagram below and follow the steps carefully.
5.1 Электр өткөргүч схемасы
Figure 5.1: Wiring connections for the PZEM-022 meter and current transformer.
5.2-сүрөт: Артка view of the meter showing terminal connections and simplified wiring.
5.2 Орнотуу кадамдары
- Электр энергиясын өчүрүү: Before starting any wiring, ensure that the main power supply to the circuit is completely disconnected to prevent electric shock.
- Кубат киргизүүнү туташтыруу: Connect the AC power supply (80-260V AC) to the input terminals of the meter. Typically, these are labeled as 'AC IN' or similar. Refer to the diagram for specific terminal locations.
- Жүктөөнү туташтыруу: Connect the load to the output terminals of the meter. These are usually labeled 'LOAD'.
- Ток трансформаторун (ТТ) орнотуу: Pass the live wire of the circuit through the hole of the closed-type current transformer. Ensure the direction of current flow through the CT matches the indicated direction if any.
- Connect CT to Meter: Connect the two wires from the current transformer to the dedicated CT input terminals on the meter. These are typically distinct from the main power terminals.
- Байланыштарды текшерүү: Double-check all wiring connections to ensure they are secure and correctly aligned with the wiring diagram. Incorrect wiring can cause damage or inaccurate readings.
- Күчтү калыбына келтирүү: Once all connections are verified, restore power to the circuit. The meter display should illuminate.
6. Операция
The PZEM-022 meter provides real-time measurement of various electrical parameters and offers convenient control functions.
6.1 Дисплей функциялары
The large LCD display shows the following parameters simultaneously:
- Тtage (V): AC көлөмүн өлчөйтtagсхеманын e.
- Учурдагы (A): Measures the AC current flowing through the circuit.
- Active Power (W): Displays the instantaneous active power consumed by the load.
- Энергия (Вт/саат): Accumulates the total energy consumed over time. This value is stored when power is off.
- Жыштык (Гц): Shows the frequency of the AC power supply.
- Power Factor (PF): Indicates the power factor of the load.
Figure 6.1: The meter's LCD display showing various electrical parameters.
6.2 Баскыч функциялары
The meter features a single button for controlling the backlight and resetting energy data.
- Жарыкты башкаруу: A кыска басуу of the button will toggle the backlight on or off. The backlight has a memory function, retaining its last state (on or off) even after power is disconnected.
- Ашыкча жүктөө сигналы: If the active power exceeds the preset alarm threshold, the backlight and the power value will flash to indicate an overload condition.
6.3 Resetting Energy Data
To reset the accumulated energy (Wh) value, follow these steps:
- 1-кадам: Узак басуу the button for approximately 5 seconds. The energy value on the display will begin to flash. Release the button once flashing begins.
- 2-кадам: While the energy value is flashing, кыска басуу the button again. The energy value will be cleared (reset to 0), and the display will exit the flashing state.
- 3-кадам: If there is no button operation within 5 seconds after the energy value starts flashing (from Step 1), the energy value will not be cleared, and the meter will exit the reset state, retaining the current energy reading.
7. Техникалык тейлөө
The Walfront PZEM-022 meter requires minimal maintenance to ensure its longevity and accurate performance.
- Тазалоо: Дисплейди тазалоо үчүн жумшак, кургак чүпүрөктү колдонуңуз жанаasing. Do not use abrasive cleaners or solvents, as they may damage the surface.
- Курчап турган чөйрө: Keep the meter in a dry, dust-free environment. Avoid exposure to extreme temperatures, direct sunlight, or high humidity.
- Байланыштары: Periodically check all wiring connections to ensure they remain tight and secure. Loose connections can lead to inaccurate readings or potential hazards.
8. Кыйынчылыктарды
If you encounter issues with your PZEM-022 meter, refer to the following common problems and solutions:
| Көйгөй | Мүмкүн себеп | Чечим |
|---|---|---|
| Дисплей бош | No power supply; Incorrect wiring; Damaged unit. | Check power connections and ensure voltage is within 80-260VAC. Verify wiring against diagram. If issues persist, the unit may be faulty. |
| Так эмес окуулар | Incorrect CT installation; Loose wiring connections; Load exceeds rated power. | Ensure the live wire passes correctly through the CT. Check all terminal connections for tightness. Verify that the load does not exceed 100A/22000W. |
| Energy (Wh) not resetting | Туура эмес баскычты басуу тартиби. | Follow the energy reset steps precisely: long press until flashing, then short press to confirm. |
| Backlight not responding | Button malfunction; Internal issue. | Ensure a clear, short press. If unresponsive, there might be an internal fault. |
If the problem persists after attempting these solutions, please contact Walfront customer support for further assistance.
9. Кепилдик жана колдоо
Walfront products are manufactured to high-quality standards. For information regarding warranty coverage, technical support, or service, please refer to the product packaging or contact Walfront customer service through their official channels. Please have your model number (PZEM-022) and purchase details ready when contacting support.
