PC473-R-W-TY Power Meter with Relay
Smart Life App
Safety Handling
WARNING: Failure to follow these safety notices could result in fire, electric shock, other injuries, or damage to the relay and other property. Read all the safety notices below before using the relay.
- Avoid high humidity or extreme temperatures.
- Avoid long exposure to direct sunlight or strong ultraviolet light.
- Do not drop or expose the unit to intense vibration.
- Do not disassemble or try to repair the unit yourself.
- Do not expose the unit or its accessories to flammable liquids, gases or other explosives.
Technical Specifications
Wireless Connectivity
- Wi-Fi: 802.11 B/G/N20/N40
- BLE: Bluetooth 5.2 Low Energy
- RF Characteristics: Operating frequency: 2.4GHz
Physical Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage | 90~250 Vac 50/60 Hz |
| Calibrated Metering Accuracy | ≤ 100W (Within ±2W) >100W (Within ±2%) |
| Max. Load Current | 16A Dry contact |
| Operating environment | Temperature: -20 °C ~ +55 °C Humidity: ≤ 90% non-condensing |
| Dimensions | 90 (L) x 35(W) x 65 (H) mm |
1 Welcome
The PC473-R-W-TY helps you monitor the power consumption in your facility by connecting the clamp to the power cable. It can also measure Voltage, Current, PowerFactor, ActivePower. It allows you to control On/Off status and check real-time energy data and historical usage via mobile App.
This guide will provide you an overview of the product and help you to get through the initial setup.
Device Diagram: The device features terminal connections labeled 'N', 'VA', 'VB', 'VC' at the top, and 'IA+', 'IA-', 'IB+', 'IB-', 'IC+', 'IC-' at the bottom. The front panel displays 'Power Meter with Relay', operating voltage (90~250VAC 50/60Hz), and contact rating (16A), with an LED indicator and a Reset/ON/OFF button.
Features
- Tuya compliant
- Support linkage with other Tuya devices
- Single/3 - phase system compatible
- Measures real-time Voltage, Current, PowerFactor, Active Power and frequency
- Support Energy Usage/Production measurement
- Usage/Production trends by hour, day, month
- Lightweight and easy to install
- Support Alexa, Google voice control
- 16A Dry contact output
- Configurable on/off schedule
- Overload protection
- Power-on status setting
2 Wiring
Please make sure the main breaker is off before installing!
CT Direction Check
For Split Core CT: Open the clamp to see the arrow (P1→P2) or (K→L), or find it on the sticker on the outside of the clamp. This indicates the direction of the CT. The CT supports bi-directional sensing.
For Donut CT: The direction is from the concave surface of the CT to the flat surface. The CT supports bi-directional sensing.
Connection and Usage
- Connect the AC Input cable to a socket near the Electrical Box to power on the PC473-R, following the wiring diagram. Apply the CT on the electric cable and ensure the direction of the CT is correct.
- To measure energy consumption, the direction of the CT should be consistent with the direction of the electricity current flows. The power will be positive.
- To measure energy production, the direction of the CT should be opposite to the direction of the electricity current flows. The power will be negative.
Wiring Diagrams
Single Phase electricity wiring diagram: Illustrates a single-phase connection. It shows a circuit breaker connected to the AC input, leading to the PC473-R Power Meter. The meter's terminals are connected to loads (Load 1, Load 2) and an inverter. CT clamps are shown attached to the power lines for each component.
3 Phase electricity wiring diagram: Illustrates a three-phase connection. It shows a circuit breaker for three phases (L1/A, L2/B, L3/C) and Neutral (N) connected to the PC473-R Power Meter. The meter's terminals are connected to loads (Load 1, Load 2) and an inverter. CT clamps are shown attached to each phase line.
Note: When installing, please ensure that the circuit measured by the CT is in the same phase as the circuit powered by PC473-R.
3 Get to know your device
Device Components
The device has terminal connections labeled 'N', 'VA', 'VB', 'VC' at the top, and 'IA+', 'IA-', 'IB+', 'IB-', 'IC+', 'IC-' at the bottom. It features an LED indicator and a Reset Button & ON/OFF button on the front panel.
Reset Button
- Reset: Press and hold the reset button for 5 seconds until the LED indicator flashes Red 3 times quickly to clear the Wi-Fi information (energy data will not be cleared). After that, the LED indicator will constantly blink and wait for pairing.
ON/OFF Button
- On/Off: Press once to switch the relay ON/OFF.
LED Indicator
The LED status provides information about the Relay and Network connection:
| LED color | Status | Relay | Network |
|---|---|---|---|
| Green | Blinking | ON | Wait for pairing. |
| Green | Solid on | ON | Device has connected with cloud. |
| Red | Blinking | OFF | Wait for pairing. |
| Red | Solid on | OFF | Device has connected with cloud. |
| Yellow / Green | Rapidly blinking alternately | ON | Device is connected to the router, but failed to connect to the cloud. |
| Yellow / Red | Rapidly blinking alternately | OFF | Device is connected to the router, but failed to connect to the cloud. |
| Yellow / Green | Slowly blinking alternately | ON | Wi-Fi has been configured, but failed to connect to router. |
| Yellow / Red | Slowly blinking alternately | OFF | Wi-Fi has been configured, but failed to connect to router. |
4 Configure Network
Download App
Please download the application: Smart Life from the App Store or App Market. You can also scan the provided QR code to download and install.
App Setup
- Open the Smart Life app and click the 'Scan' button in the upper right corner of the App Home page.
- Scan the subsequent QR code to configure the network.
5 FAQ
Overload protection
Conditions:
- When the continuous power exceeds 20% of the preset value (configurable via the App), the device will cut off the power supply to the load within 5 seconds.
- When the continuous value detected by the device exceeds 50% of the rated power (configurable via the App) within 1s, the device will cut off the power supply to the load.
