Sma Life App
EPMC321
Split-phase Power Clamp
Quick Sta Guide
2
Safety Handling
WARNING: Failure to follow these safety notices could result in re,
electric shock, other injuries, or damage to the Power Clamp and
other property. Read all the safety notices below before using the
Power Clamp.
• 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 t to repair the unit on your own.
• Do not expose the unit or its accessories to ammable liquids, gases
or other explosives.
Technical Specications
Wireless Connectivity
Wi-Fi • 802.11 B/G/N20
BLE • Bluetooth 4.2 Low Energy
RF Characteristics
• Operating frequency: 2.4GHz
• External antenna
• Output Power: Up to +20dBm
Physical Specications
Operating Voltage • 100~240 Vac 50/60 Hz
Calibrated Metering Accuracy
• ≤ 100W ( Within ±2W )
• >100W ( Within ±2% )
Operating environment
• Temperature: -20 ℃~ +55 ℃
• Humidity: ≤ 90% non-condensing
Dimension • 86(L) x 86(W) x 37(H) mm
3
Welcome
1
Power Clamp helps you monitor the amount of electricity usage in
your facility by connecting the clamp on to the power cable. It can also
measure Voltage, Current, PowerFactor, ActivePower.
This guide will provide you with an oveiew of the product and help
you get through the initial setup to installation.
• Tuya compliant
• Suppo Tap-to-Run and automation with other Tuya device
• Split-phase electricity compatible
• Measures real-time Voltage, Current, PowerFactor, ActivePower
• Bi-Directional measurement
• Suppo Energy consumption and Production measurement
• Suitable for both residential and commercial application
• Lightweight and easy to install
Features:
4
2
CT: Current Transformer
Get to know your device
LED indicator
AC Input cable
Clamp
External Antenna
CT2
CT1
Antenna connector
5
Reset Button
• Reset. Press and hold the reset button for 5 seconds until the LED
indicator flashes red 3 times quickly to restore the power clamp to
default facto settings (energy data will not be cleared).
Note:
If you want to clear the energy data, please delete the device
and wipe data on the app and add it again.
Reset Button
LED Status What it means
Green LED blinking Wait for pairing
Green LED solid on Device has connected to cloud.
Red LED solid on
Device is connected to the router, but
failed to connect to the cloud.
Red LED blinking
Wi-Fi has been configured, but failed to
connect to the router.
LED indicator
The LED status gives the following information :
ashing 3 x
Press 5s
6
3
Installaion
Impoant safety information!
• The power clamp must be installed and seiced only by a qualied
electrical personnel.
• Do not touch the terminals of the device during testing.
• Turn o all the power supply for this equipment before installing.
• Make sure that the power supply is off before connecting or
disconnecting it to an auxilia device.
• Always use a properly rated voltage sensing device to con
fi
rm
power is o.
• Replace all devices, doors and covers before applying power to the
equipment.
• Please make sure the main power in your facility is o before installing!
Failure to follow these instructions will result in death or serious inju.
1
7
2
* Mind the correct mounting direction
3
b
a
To meter
8
Wiring video for reference
4
Wiring
split-phase
Note: The circuit measured by each CT is the same phase as the power
supply of that CT. For example, the circuit measured by the CT of L1
is in the same phase as the power supply of L1. Just like the wiring
diagram. You cannot clamp the the CT of L1 on the L2 phase, and the
power supply of L1 is still connected to the L1 phase.
16 A
0 3 0 9 1 7
kWh
L1
L2
N
L1
B
A
N L2
Load 1
Load 2
9
Method 1:
1. Power on the power clamp.
2. Make sure the LED indicator is ashing green. If not, please reset it.
3. Open Sma Life app and turn on Bluetooth on your phone.
4. Open the app and the scanned devices will pop up automatically.
5. If no prompt box pops up automatically, please click the '+' on the top
right of the home page to add device. It will search nearby devices.
6. After clicking 'Add', enter your home Wi-Fi account and password
(Only support 2.4Ghz Wi-Fi) and wait for it to be added. If it fails,
please refer to the FAQ.
5
Congure Network
Download App:
Please download the application: Sma Life from App Store or App
Market. Also you can scan below QR code to download and install.
Sma Life APP congure network video
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1 2
43
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Method 2:
1. Open Sma Life app and click the 'Scan' button in the upper right
corner of the App Home page.
2. Scan the following QR code to congure the network
.
←
1
2
12
1. Wi-Fi conguration of the device failed
- Conrm the entered router password is correct.
- If you have already upgrate the iOS system to 14, you need to enable
the "Local network" of Sma Life App.
6
FAQ
- Confirm that both the location permission of phone system and
Sma Life App are enabled.
Phone system
←
Sma Life
13
- Ensure that the DHCP seice is enabled for the router. If not, the IP
address will be occupied.
- If your router supports both 2.4Ghz and 5Ghz, please enable the
2.4Ghz channel and add device under 2.4G Wi-Fi channel. You can
follow the following step on the App to congure the router.
- If it still does not work, it is recommended to change the router and
t again.
2. Device oine
- Conrm whether the Power Clamp is powered on.
- Please conrm whether the home Wi-Fi network is normal, or whether
the Wi-Fi name and password has been modied:
Put the phone besides your device and make sure they are in the same
network environment, t to open a website to judge if the network can be
used.
- If there still have problems after the above checking, it is recommended
to remove the device or change the router to add it again.
