1. Mawu Oyamba
The Acrel ACR10R is a single-phase LCD DIN rail energy meter designed for precise power monitoring in grid-connected PV power stations and general power management applications. This meter is cost-effective and features easy installation without the need to remove the primary bus bar. It is capable of measuring various electrical parameters including current, voltage, active power, reactive power, frequency, and power factor. Additionally, it supports multi-tariff energy metering and 4-quadrant energy metering.
Zofunika Kwambiri:
- Muyeso: 1-phase Active Power, Reactive Power, Current, Voltage, ndi zina.
- Mavoti Apano: Available with external CTs for various diameters and current ratings (e.g., 16mm/120A, 24mm/200A, 36mm/300A).
- Kulumikizana: RS485 (MODBUS-RTU) protocol.
- Ntchito: Suitable for distributed Solar PV and anti-reflux inverter systems.
- Onetsani: Kuwonetsera kwa LCD.
- Kuyika: 35mm DIN Rail.
- Magetsi: 85~265V AC or 100~350V DC.
- Standard & Certificate: Zotsimikizika.
2. Kukhazikitsa ndi Kuyika
2.1 DIN Rail Installation
The ACR10R meter is designed for easy installation on a standard 35mm DIN rail. Follow these steps:
- Push off the buckle on the back side of the meter.
- Install the 35mm DIN rail onto the slot behind the meter.
- Buckle up the meter to securely fix it on the DIN rail.
- Ensure the meter is successfully installed and stable.
2.2 Wiring Diagram and Connections
Chidziwitso Chofunika Chachitetezo: Make sure the AC cable is totally isolated from AC power before connecting the Meter and Current Transformer (CT). Incorrect connection or direction will cause incorrect data and potential hazards.
The ACR10R supports single-phase two-wire connections with external split core CTs. The meter is suitable for RS485 cable connection on the RJ45 port of Sermatec hybrid inverters.
Current Transformer (CT) Installation:
The meter uses external split core CTs. Ensure the CT is correctly oriented according to the current flow direction. For split core CTs, connect S1 (Red) and S2 (Black) wires. For Rogowski coils, connect the Positive Electrode (Red) and Negative Electrode (White) as indicated.
Available Current Sensors (CTs):
The ACR10R is compatible with various external CTs to support different current ratings:
- Zolowetsa 80A: Max cable diameter 10mm.
80A CT - Zolowetsa 120A: Max cable diameter 16mm.
120A CT - Zolowetsa 200A: Max cable diameter 24mm.
200A CT - Zolowetsa 300A: Max cable diameter 36mm.
300A CT
3. Malangizo Ogwiritsira Ntchito
3.1 LCD Sonyezani
The ACR10R features an LCD display that shows various measured parameters. The display provides clear readings of voltage, panopa, mphamvu, mphamvu, ma frequency, ndi mphamvu factor.
3.2 Keypad HMI for Programming
The meter is equipped with a keypad Human-Machine Interface (HMI) for setting parameters and configuring communication settings. This includes:
- Parameter Display Setting
- Communication settings (address, baud rate, etc.)
3.3 Bidirectional Metering
The ACR10R supports bidirectional metering, which is essential for distributed solar PV systems. It accurately measures both power consumption from the grid and redundant power generation fed back into the grid.
4. Kusamalira
The Acrel ACR10R meter is designed for reliable operation with minimal maintenance. However, regular checks can ensure optimal performance and longevity:
- Kuyang'anira Zowoneka: Periodically inspect the meter and its connections for any signs of damage, loose wiring, or corrosion.
- Kuyeretsa: Keep the meter's display and casing clean using a soft, dry cloth. Avoid using abrasive cleaners or solvents.
- Zachilengedwe: Onetsetsani kuti malo ogwirira ntchito akukhalabe mkati mwa kutentha ndi chinyezi chomwe chatchulidwa kuti mupewe kuwonongeka.
- Zosintha za Firmware: Onani opanga webtsamba la zosintha zilizonse za firmware zomwe zingapangitse magwiridwe antchito kapena kuwonjezera zatsopano.
Always disconnect power before performing any maintenance or inspection to prevent electric shock.
5. Mavuto
If you encounter issues with your Acrel ACR10R meter, consider the following troubleshooting steps:
- Palibe Chiwonetsero/Mphamvu: Check the power supply connections (AC85~265V or DC100~350V). Ensure the power source is active.
- Zolakwika:
- Verify that the CTs are correctly installed and oriented according to the current flow direction (refer to Section 2.2).
- Check all wiring connections for looseness or incorrect placement.
- Ensure the meter's parameters (e.g., CT ratio) are correctly configured via the keypad HMI.
- Communication Issues (RS485):
- Check the RS485 wiring for correct polarity (A and B connections).
- Verify the communication settings (baud rate, address) on both the meter and the connected device (e.g., inverter).
- Ensure the RS485 cable is properly connected to the RJ45 port if using Sermatec hybrid inverters.
- Meta Siikuyankhidwa: Try power cycling the device (turn off, wait a few seconds, then turn on). If the issue persists, contact technical support.
Any fault or damage caused by misoperation or disregard of the instructions in this manual is beyond Acrel's warranty coverage.
6. Zofotokozera
| Gulu | Parameter | Mtengo |
|---|---|---|
| Zolowetsa | Gridi | Gawo limodzi |
| pafupipafupi | 45-65Hz | |
| Voltage | Yoyezedwa voltage: AC 100V, 400V | |
| Overload: 1.2 times rated voltage (continuous); 2 times for 1 second | ||
| Power consumption: less than 0.2VA | ||
| Panopa | Rated current: 10A, 20A, 40A, 80A, 120A, 200A, 300A (depending on CT) | |
| Overload: 1.2 times rated current (continuous); 10 times for 1 second | ||
| Power consumption: less than 0.2VA | ||
| Zotulutsa | Kulankhulana | RS485 mawonekedwe, Modbus-RTU |
| Onetsani | LCD | |
| Kuyeza Kulondola | Kalasi Yolondola | Voltage: 0.2 level, Current/Active Energy: 0.5 level, Frequency: 0.01Hz, Reactive Energy: 1 level |
| Magetsi | Voltage manambala | AC85~265V or DC100~350V; Power consumption ≤10VA |
| Chitetezo | Mphamvu pafupipafupi yolimbana ndi voltage | AC2kV 1 min between power supply // current input // voltage input and communication; AC2kV 1 min between each pair of combinations |
| Insulating resistor | Input, output terminal to housing >100MΩ | |
| Chilengedwe | Kutentha kwa Ntchito | -10 ℃~+55 ℃ |
| Kutentha Kosungirako | -20 ℃~+70 ℃ | |
| Chinyezi Chachibale | 5% ~ 95%, osakondera | |
| Kutalika | ≤2500m | |
| Makulidwe | Kukula (L*W*H) | 85 * 64 * 54mm |
| Measuring Energy Range | Mtundu wa Mphamvu | 0-99999.9kwh |
| Chitsimikizo | Standard | CE |
7. Malangizo Ogwiritsa Ntchito
Palibe maupangiri enieni ogwiritsa ntchito omwe adapezeka kuchokera ku reviews or Q&A content. However, general best practices for energy meters include:
- Always ensure proper grounding to prevent electrical hazards.
- Regularly check the meter's readings against other known values (if available) to confirm accuracy.
- Keep the meter's software updated if new versions are released by the manufacturer.
8. Chitsimikizo ndi Thandizo
The Acrel ACR10R is manufactured by ACREL, a reputable brand in electrical measurement. For any technical assistance, warranty claims, or support, please contact the official Acrel support channels or your authorized dealer. Ensure you retain your purchase records for warranty purposes.
