Safety Precautions
Milesight will not shoulder responsibility for any losses or damages resulting from not following the instructions of this operating guide. The device must not be modified in any way. The installation and maintenance must be conducted by a qualified service person and should strictly comply with the electrical safety regulations of the local region. Do not overload the maximum capacity to avoid damage to the device. The device is intended only for indoor use. Do not place the device where the temperature is below/above the operating range. Do not place the device close to objects with naked flames, heat source (oven or sunlight), cold source, liquid and extreme temperature changes. Keep the device away from water to prevent electric shock. Use the device opening clean and free of dust before installation. Dusty or dirty environments may prevent the proper operation of this device. Do not drop the device or subject it to physical shocks and strong vibration.
Declaration of Conformity
CT10x is in conformity with the essential requirements and other relevant provisions of the CE, FCC, and RoHS.
Copyright © 2011-2024 Milesight. All rights reserved. All information in this guide is protected by copyright law. Whereby, no organization or individual shall copy or reproduce the whole or part of this user guide by any means without written authorization from Xiamen Milesight IoT Co., Ltd.
For assistance, please contact Milesight technical support: Email: iot.support@milesight.com Tel: 86-592-5085280 Fax: 86-592-5023065 Address: Building C09, Software Park III, Xiamen 361024, China
Revision History
| Date | Doc Version | Description |
|---|---|---|
| Jan 12, 2024 | V 1.0 | Initial version |
1. Product Introduction
1.1 Overview
CT10x is a LoRaWAN® Smart Current Transformer for monitoring energy and analyzing consumption remotely. CT10x provides multiple current options to suit energy monitoring and supports sending threshold alarms. The compact size and clamp design allow it to be installed in any indoor space quickly and safely without de-energizing a facility, simplifying the installation and saving costs. Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, CT10x can be monitored via webpage or mobile App remotely. CT10x is widely used for energy monitoring and billing in smart buildings, as well as for machine failure detection and prevention, etc.
1.2 Features
- Report the RMS current and accumulated current data by minutes
- High measuring accuracy with a sampling frequency of up to 3.3 kHz
- Self-powered, free from batteries or external wires
- Utilize a sampling rate of up to 1s for real-time monitoring and quick alarm response
- Compact size allows for installation in narrow scenarios
- Non-invasive clamp design ensures easy and safe installation without the need for power de-energizing
- Equipped with LED indicator to indicate working status and alarms
- Compliant with standard LoRaWAN® gateways and network servers
- Compatibility with Milesight IoT Cloud
2. Hardware Introduction
2.1 Packing List
- 1 x CT10x Current Transformer
- 1 x LoRaWAN® Stubby Antenna
- 1 x LoRaWAN® Magnetic Antenna (Optional)
- 1 x Quick Guide
- 1 x Warranty Card
If any of the above items is missing or damaged, please contact your sales representative.
2.2 Hardware Overview
The diagram shows the Milesight CT10x device. It features a clamp mechanism for encircling a wire, a compact casing, a Type-C USB port for configuration, an antenna connector, a reset (RST) button, and an LED indicator.
2.4 Dimensions (mm)
The diagram illustrates the physical dimensions of the CT10x device. The device has a length of 70mm, a width of 70mm, and a height of 25mm. The clamp opening is shown as 20mm.
3. Operation Guide
3.1 USB Configuration
CT10x can be powered and configured via a Type-C port for configuration and debug. 1. Download ToolBox software from Milesight website. 2. Connect the device to a computer via the Type-C port. 3. Open the ToolBox and select type as General, then click password to log into the ToolBox. (Default password: 123456) 4. After logging into the ToolBox, you can check device status and change device settings.
3.2 LoRaWAN Settings
LoRaWAN settings are used to configure the data transmission parameters in the LoRaWAN® network.
Basic LoRaWAN Settings:
CT10x supports basic configurations like join type, App EUI, App Key, and other information. You can also keep all settings by default.
| Parameters | Description |
|---|---|
| Device EUI | Unique ID of the device which can also be found on the label. |
| App EUI | Default App EUI is 24E124C0002A0001. |
| Application Port | The port used for sending and receiving data, default port is 85. |
| Join Type | OTAA and ABP modes are available. |
| Application Key | Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823. |
| Device Address | DevAddr for ABP mode, default is the 5th to 12th digits of SN. |
| Network Session Key | Nwkskey for ABP mode, default is 5572404C696E6B4C6F52613230313823. |
| Application Session Key | Appskey for ABP mode, default is 5572404C696E6B4C6F52613230313823. |
| RX2 Data Rate | RX2 data rate to receive downlinks. |
| RX2 Frequency/MHz | RX2 frequency to receive downlinks. |
| Spread Factor | If ADR is disabled, the device will send data via this spread factor. |
| Confirmed Mode | If the device does not receive the ACK packet from network server, it will resend data once. |
| Reporting interval | LinkCheckReq MAC packets to the network server every reporting interval or every double reporting interval to validate connectivity; If there is no response, the device will re-join the network. Reporting interval > 35 mins: the device will send a specific number of LinkCheckReq MAC packets to the network server every reporting interval to validate connectivity; If there is no response, the device will re-join the network. |
| Rejoin Mode | Set the number of When rejoin mode is enabled, set the number of LinkCheckReq packets sent. Note: the actual sending number is Set the number of packets sent + 1. |
| ADR Mode | Allow the network server to adjust the data rate of the device. |
| Tx Power | Transmit power of the device. |
Note:
- Please contact your sales representative for the device EUI list if there are many units.
- Please contact your sales representative if you need random App keys before purchase.
- Select OTAA mode if you use Milesight IoT Cloud to manage devices.
- Only OTAA mode supports rejoin mode.
LoRaWAN Frequency Settings:
Select supported frequency and channels to send uplinks. Make sure the channels match the LoRaWAN® gateway. If the device frequency is one of CN470/AU915/US915, you can enter the index of the channel that you want to enable in the input box, making them separated by commas. Examples: 1, 40: Enabling Channel 1 and Channel 40 1-40: Enabling Channel 1 to Channel 40 1-40, 60: Enabling Channel 1 to Channel 40 and Channel 60 All: Enabling all channels Null: Indicates that all channels are disabled
3.3 General & Alarm Settings
| Parameters | Description |
|---|---|
| Reporting Interval | The interval of reporting current data. Default: 10 mins, Range: 1 - 1440 mins Note: when the device is under low power mode, the interval is fixed as 30 minutes; when the device is under low voltage mode, the device will stop reporting. The working mode can be judged by LED indicator. |
| Change Password | Change the password of the device for ToolBox configuration. |
| Excessive Current Threshold | The maximum current threshold value. |
| Insufficient Current Threshold | The minimum current threshold value. |
| Alarm Reporting Interval (min) | The interval to report alarm packet after alarm triggers. This interval should be less than reporting interval. |
| Alarm Reporting Times | Alarm packet report times after alarm triggers. |
Note: Overrange alarm is fixed as enabled, the alarm reporting interval is fixed as 5 minutes and the alarm reporting time is fixed as 3.
3.4 Maintenance
3.4.1 Upgrade
1. Download firmware from Milesight website to your PC. 2. Go to Maintenance > Upgrade, click Browse to import firmware and click Upgrade to upgrade the device.
3.4.2 Backup
CT10x supports configuration backup for easy and quick device configuration in bulk. Backup is allowed only for devices with the same model and LoRaWAN® frequency band. 1. Go to Maintenance > Backup and Reset, and click Export to backup the device configuration. 2. Click Browse to import the backup file, then click Import to load the configuration.
3.4.3 Reset and Reboot
Reset to Factory Default: Go to Maintenance > Backup and Reset of ToolBox, and click Reset to complete. Reboot: Quick press the RST button once or send downlink command to reboot.
4. Installation
Antenna Installation
Rotate the antenna into the antenna connector. Ensure that the antenna is positioned vertically and is kept clear of metal objects and obstacles. Note: Keep the device away from metal objects, obstacles, or areas with other electrical equipment that may cause interference. If needed, consider opting for a magnetic antenna.
Transformer Installation
Open the current transformer to clip it around a single-phase wire. Then close the clip with a slight "click" sound to confirm a firm grip on the wire. Note: Do not place Phase wire and Neutral wire within a single current transformer.
5. Communication Protocol
All data are based on the following format (HEX), the Data field should follow little endian: Channel1 Type1 Data1 Channel2 Type2 Data2 Channel 3 ... CT10x reports basic information of the device whenever it joins the network. Example: Channel ff Type 0b (Power On) Value ff (Reserved) Example: 1. Periodic package: report as reporting interval (10 minutes by default). 039773020000 04980019 2. Alarm or alarm dismiss packet: 8498 b80b d007 c409 01 CT10x supports downlink commands to configure the device. The application port is 85 by default. Example: 1. Set reporting interval as 20 minutes. ff8e 00 1400 2. Reboot the device. ff10ff 3. Enable current threshold alarm and set maximum threshold as 60A, reporting times as 2 and reporting interval as 5 minutes. ff 06 0a00003c0002000500 For decoder examples you can find at https://github.com/Milesight-IoT/SensorDecoders.5.1 Basic Information
Channel Type Byte Description 01 (Protocol Version) 1 01=>V1 09 (Hardware Version) 2 02 10=>V2.1 0a (Software Version) 2 01 01=>V1.1 ff 0b (Power On) 1 Device is on ff 0f (Device Type) 1 00 = Class A, 01 = Class B, 02 = Class C ff 16 (Device SN) 8 16 digits
Channel ff Type 16 (Device SN) Value 6746d48016300014
Channel ff Type 0a (Software Version) Value 0101 (V1.1)
Channel ff Type 01 (Protocol Version) Value 01 (V1)
Channel ff Type 09 (Hardware Version) Value 0110 (V1.1)
Channel ff Type 0f (Device Type) Value 00 (Class A)5.2 Sensor Data
Item Channel Type Byte Description Total Current 03 97 4 UINT32/100, Unit: Ah, Resolution: 0.01 Ah Note: when it reaches to max value FFFFFFFF (42949672.95), it will clear to 0 automatically. Current 04 98 2 UINT16/100, Unit: A, Resolution: 0.01 A Note: FFFF means collection failure. Current Alarm 84 98 7 Max. Current (2B) + Min. Current (2B) + Latest Current (2B) + Alarm Status (1B) Alarm Status: Bit0=1: Threshold alarm Bit1=1: Threshold alarm dismiss Bit2=1: Overrange alarm Bit3=1: Overrange alarm dismiss Note: Max./Min. Current means the maximum or minimum value between last report and current report.
Channel 03 Type 97 (Total Current) Value 73 02 00 00=>00 00 02 73=627/100 =6.27 Ah
Channel 04 Type 98 (Current) Value 00 19=>19 00=6400/100 =64A
Channel 84 Type 98(Current)
Max. Current: b8 0b=>0b b8=3000/100=30A
Min. Current: d0 07=>07 d0=2000/100=20A
Latest Current: c4 09=>09 c4=2500/100=25A
Alarm Status: 01=>Bit1=1: Threshold alarm5.3 Downlink Commands
Command Channel Type Description Reboot ff 10 ff Reporting Interval ff 8e 00 + Interval Time(2B), unit: min Alarm Reporting Times ff 06 9 Bytes, CTRL (1B) + Min (2B) + Max (2B) + Alarm Reporting Interval (2B) + Alarm Reporting Times(2B) Threshold Alarm ff 06 CTRL: 08 - disable 09 - below (minimum threshold) 0a - over (maximum threshold) 0b - within 0c - below or over Max./Min. Threshold unit: A Alarm Reporting Interval unit: min Clear Accumulated Current ff 0a 01 Note: when it reaches to max value FFFFFFFF (42949672.95Ah), it will clear to 0 automatically.
Channel ff Type 8e (Reporting Interval) Value 14 00=>00 14= 20 mins
Channel ff Type 10 (Reboot) Value ff
Channel ff Type 06 Value CTRL:0a=Over maximum threshold Min: 00 00=0 Max: 3c 00=> 00 3c=60 A Alarm Reporting Times: 02 00=>00 02=2 Alarm Reporting Interval: 05 00=>00 05 =5 mins
GitHub - Milesight-IoT/SensorDecoders: Payload Codec for Milesight Sensors
