PC472-W-TY Power Meter Series

1. Welcome

The PC472-W-TY Power Meter helps you monitor power consumption in your facility by connecting a clamp to the power cable. It can measure Voltage, Current, Power Factor, and Active Power. For models with a relay, it allows control of On/Off status. You can check real-time energy data and historical usage via the mobile App.

This guide provides an overview of the product and assists with initial setup.

Device Overview:

Without Relay:

The device features terminals labeled L (Line), N (Neutral), 1+ (Current Input 1), 1- (Current Output 1), 2+ (Current Input 2), 2- (Current Output 2). It has a "Power Meter" display showing "90~250VAC 50/60Hz" and a "RESET" button.

With Relay:

Similar to the model without a relay, but includes a power symbol button for ON/OFF control and indicates "Contact: 16A".

Features

• Tuya compliant
• Supports linkage with other Tuya devices
• Single-phase system compatible
• Measures real-time Voltage, Current, Power Factor, Active Power, and frequency
• Supports Energy Usage/Production measurement
• Tracks Usage/Production trends by hour, day, month
• Lightweight and easy to install
• Supports Alexa and Google voice control
• 16A Dry contact output (optional)
• Configurable on/off schedule
• Overcurrent protection
• Power-on status setting

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 safety notices below before using the power meter.

• 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 attempt to repair the unit yourself.
• Do not expose the unit or its accessories to flammable liquids, gases, or other explosives.

Technical Specifications

Wireless Connectivity

Physical Specifications

2. Wiring

Please ensure the main breaker is turned off before installing.

Checking CT Direction

For Split Core CT: Open the clamp and look for an arrow (P1→P2) or (K→L) on the sticker outside the clamp. This indicates the CT direction. 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 also supports bi-directional sensing.

A visual representation shows a split-core CT with a red wire passing through it, and arrows indicating the direction of current flow.

Connection Steps:

1. Connect the AC Input cable to a socket near the Electrical Box to power the PC472, following the wiring diagram. Apply the CT to the electric cable and ensure its direction is correct.
2. To measure energy consumption, the CT direction must be consistent with the direction of electricity current flow. The power reading will be positive.
3. To measure energy production, the CT direction must be opposite to the direction of electricity current flow. The power reading will be negative.
4. Ensure the main power in your facility is off before installing. Follow the schematics below as an example to wire the Power Meter.

Single Phase Electricity Wiring Diagram (Without Relay):

The diagram shows the main power supply (L, N) connected to a Circuit Breaker. From the breaker, power goes to the Power Meter's L and N terminals. The Load's L and N terminals are connected to the Power Meter's 1+ and 1- terminals respectively. The Inverter (DC/AC)'s L and N terminals are connected to the Power Meter's 2+ and 2- terminals respectively. CT clamps are shown around the wires feeding the Load and the Inverter, with arrows indicating current flow direction.

Single Phase Electricity Wiring Diagram (With Relay):

This diagram is similar to the one without a relay, but the Power Meter is labeled "Power Meter with Relay" and includes a power symbol button. The wiring connects the Load and Inverter through the relay contacts of the Power Meter.

Note: Please select the appropriate wiring reference diagram based on the actual product purchased.

3. Get to know your device

The device features a "Power Meter" display with terminals for L, N, 1+, 1-, 2+, 2-. It includes an LED indicator and a combined Reset Button & ON/OFF button.

Reset Button

Reset: Press and hold the reset button for 5 seconds. The LED indicator will flash Red 3 times quickly to clear WiFi information (energy data remains). After clearing, the LED indicator will blink continuously, waiting for pairing.

ON/OFF Button

On/Off: Press once to switch the Power Meter ON or OFF. This function is only available for devices equipped with a relay.

LED Indicator Status (Without Relay)

LED Indicator Status (With Relay)

4. Configure Network

Download App

Please download the "Smart Life" application from the App Store or App Market. You can also scan the QR code provided in the original document to download and install it.

Setup Steps:

1. Open the "Smart Life" app and click the 'Scan' button in the upper right corner of the App Home page.
2. Scan the corresponding QR code to configure the network. (Original document shows QR codes for 'without relay' and 'with relay' configurations).

5. FAQ

Overcurrent Protection (With Relay)

Conditions:

1. When the continuous current exceeds 15% of the preset value (configurable via the App), the device will cut off power to the load within 5 seconds.
2. When the detected continuous current exceeds 50% of the rated current (configurable via the App) within 1 second, the device will cut off power to the load.