MyWatt SEM330 User manual

SEM330/360/370/375 Energy Logger manual

SEM330
SEM330 and SEM370 are using the same main pcb board except the extra function.
SEM330 basic version:
has Micro SD-Card slot, Modbus RS-485, TCP/IP, 3 Phase 4-Line voltage input, 3 clamp connection
terminal and extra sensor terminals. We also provide Battery clock back-up device.
“B” type USB terminal is included.
In case of TCP/IP, you can get web cloud service directly by connecting LAN cable (2-channel service
is free) 30channel service is option.
SEM330 optional items:
*Temperature and humidity sensor
*WIFI module
*LORA module (FULL MESH networking service up to 100 channels)
*Pressure sensor (0 to 10bar)
*Dust sensor ( 3 channel)
SEM330 have 5 push buttons and 3 led display but not useful except the following button.
LED lamp:
red led: power on indication
SEM330 Piano switch on top side
Please press the piano switch #3 before start the SEM330.
If you are using WIFI module on SEM330, please press No. 5 button for WIFI pairing start.
And press 3 seconds continuously, the green led lamp will blinking for WIFI pairing start.

If you want to measure Single phase but 3-channel application, please make the cable connection
as the above photo.
But if your cable connection method is reverse, you can see “-“ data when you are using rs-485
software which we provide free cost..
nevertheless if you see “-“ data, please change the clamp connection position.
If you need to measure only single phase and 1 channel energy measuring, please connect only “N”
and “T” pole.
“B” type USB terminal:
If you connect 5V DC power, SEM330 power is on and the clock is start to work.
In this case, you can measure with optional sensors.
SEM330 Test Report dated on January 2019 by Official Lab.

PCB board layer
SEM370 3-Phase Energy Logger
SEM370 basic version:
has Micro SD-Card slot, Modbus RS-485, TCP/IP, 3 Phase 4-Line voltage input, 3 clamp connection
terminal and extra sensor terminals. We also provide Battery clock back-up device.

“B” type USB terminal is included. 2.4” TFT lcd.
In case of TCP/IP, you can get web cloud service directly by connecting LAN cable (2-channel service
is free) 30channel service is option.
SEM370 optional items:
*Temperature and humidity sensor
*WIFI module
*LORA module (FULL MESH networking service up to 100 channels)
*Pressure sensor (0 to 10bar)
*Dust sensor ( 3 channel)
SEM370 have 5 push buttons and 3 led display.
LED lamp:
red led: power on indication
SEM330 Piano switch on top side
Please press piano switch #3 before start the indicator if necessary.
If you want to measure Single phase but 3-channel application, please make the cable as the above
photo.
But if your cable connection method is reverse, you can see “-“ data when you are using rs-485
software which we provide free cost..
nevertheless if you see “-“data, please change the clamp connection position.
If you need to measure only single phase and 1 channel energy measuring, please connect only “N”
and “T” pole.

“B” type USB terminal:
If you connect 5V DC power, SEM330 power is on and the clock is start to work.
In this case, you can measure with optional sensors.
3-Phase 4-Line voltage energy measuring
Please connect 4-Line voltage connector with 4-line cables.
Please connect the RJ12 jack with 3-clamps on top of SEM370 case.
if you see “-“ data on lcd display, please rotate the clamp connecting position
SEM370 clamps:
SEM370 clamps must be ordered separately. You must use the clamps which is confirmed by the
We provide 30A, 60A, 100A, 200A, 500A clamps.
SEM370 LCD operation method.
SEM370 have 5 buttons. (MODE, UP, DOWN, ENTER, OTHERS)

#1: Mode Button
If you press Mode button, You can see 18 menu.
*ENERGY1:
You can see Active power(W), Total Energy power (Wh or kWh), Power Factor, Voltage, Frequency.
*ENERGY2:
Active power(W), Total Energy power (Wh or kWh), Reactive Power (AVR), Apparent Power (VA),
AVRh, Vah,
*COST & GRAPH:
Daily and Monthly Energy cost calculation will be provided in the future.
We will also provide Daily/Monthly/Yearly graph in the future.
*T&H (Temperature and Humidity): Option
*Pressure sensor: Option

Clamp Type (200A, 500A, 60A)
DUST Sensor: Option. Will be available in the future
*SMART FARM: Will be available in the future.
*RS-485 (Modbus RS-485)
You can connect up to 30chnnels. If you use multi-channel, you must set the channel number on
each device by using supplied RS-485 software.
*RF433MHz
Will be available in the future.
*WIFI:
If you buy WIFI module and insert it onto the main pcb, you can use WIFI mode.
Please move to WIFI mode and press the START icon and press the COMPLETE icon.
Then you could see the ENERGY1 lcd page and could see the green led is blinking continuously.
Then the WIFI pairing mode is starting now.
*LAN: (Web cloud service)
Please connect the LAN cable on to the tcp/ip slot and press the #1 piano switch down to up for
the web cloud service starting.

*CLOCK
You can change the clock by using up/down/enter button. Or You can change the clock by using
RS-485 software. Or you can change the clock by using WIFI or LAN web cloud service
automatically.
*LANGUAGE:
Now we provide English mode only.
*MODBUS RS-485
Please use the rs-485 software for to see the data,
*AUTO SCROLL:
Will be available in the future
*ADMIN:
You can adjust the CT/PT ratio with this mode.
* RS-485 software operation method:
We supply RS-485 to USB adapter as below photo.
Please connect “+” to “+” and “-“ to “-“ by cable. You must provide the cable.

Please also use the pc software which we provide separately. You can see 30 kinds of data on one
page with 2 seconds interval.
download site: www.mywatt.biz/download/485soft.zip
When starting the software, please check the “Port” number is correct or not. If it is okay, please
press the “Open” button then you could see the 30 kinds of data at once with 2 seconds interval.
If you are not satisfied, you can change from 2 seconds to 200 seconds.
If you see “-“ figure on Active power (W or kW), please rotate the clamp position or change the
voltage pole when you made mistake.

If you want to erase the PC software logged data, please do the following action:
Setting -> Database -> Delete Data
You can see the logged data is deleting.

If you want to save the logged data to PC, Please do as below:
Home -> CVS selection and save the file to your wanted file position.
If you want to connect up to 30 channels of SEM370, you must memorize the Device Number by
using RS-485 software.
Slave ID number setting as below
Micro SD card data logging: 1-minute interval data logging. 1 month 1 file is saving now.

SD CARD: Please do take in and take out when you are necessary.
Temperature unit adjustment: Please press the “ENTER” button and you could see the unit is
changing.
Electricity energy phase change: You can change L1/L2/L3/3P phase by pressing the ENTER button.
If you have problem to connect R/S/T/N 4-pole now due to the factory electricity line problem, you
can use 2 pole connect as below photo:

TCP/IP WEB CLOUD SERVICE
You can use TCP/IP web cloud service with free of charge service but only 2-channels.
But if you want to get 30 channel service, please contact to Korins Inc. directly.
Korins Inc. www.mywatt.biz
Phone : [phone], Mobile: [phone]
Email: [email protected]
30 Channel web cloud service
If the company or factory have problem with WIFI, you can use 4G router instead. Please connect I
to TCP/IP line as below photo:

WIFI
WIFI module operation method:
A)If you buy WIFI module and insert it onto the main pcb, you can use WIFI mode.
Please move to WIFI mode and press the START icon and press the COMPLETE icon.
Then you could see the ENERGY1 lcd page and could see the green led is blinking continuously.
Then the WIFI pairing mode is starting now.
B)Please download the “mywatt30” App from Google shop or IOS Shop to your mobile phone.
And you must register your ID with your email address or company email address on this App site.
1)Please log on the MYWATT30 app with your ID and password.
2) Please select the NEW DEVICE icon and select the WIFI icon and select the SEM360 device.
3) Please go to WIFI channel display mode on your smart phone:
4) Please find and select the “SEM370_XXX123” number which is matching your SEM370 serial
number.
5) After selection, the above SEM370_XXX123 with be chosen as your default WIFI line.
6) Please insert the password number “korins1234”.
7) After finish the above process, please move to the remained APP process.
8) Please write your office or factory available WIFI line (2.4G line only) ID.

9) Please also write your WIFI line password.
10) Then please press ‘NEXT” icon until it stop the pairing process.
11)If the pairing process is finishing, please write an email or call a phone to Korins for to register
the DEVICE number at the web server.
Korins staff will support on this final process.
SEM360 Model

SEM375 Model
SEM375 is suitable for wall mounting or stand type for the service staffs. It has magnet on back
side plastic part and could easily attach on to the steel plate.
SEM375 also have rechargeable battery for the clock backup.

New lcd menu for SEM375 and SEM370PRO
1) Graph (Day/Week/Month/Year)
You can change the date by up/down key. You can change the day/week/month/year by using the
Enter key.
2) Chart (Day/Month/Year)
Optional Graphic software –MYWATT-GRAPH: $300.00