1  Product Overview

 SC-LP-CT LoRa wireless current and temperature acquisition sensor terminal is equipped with low power consumption and high sensitivity of the open type transformer, through the principle of electromagnetic induction to convert the primary side of the large current to the secondary side of the small current, so as to carry out current monitoring, and can be sensitive to detect the amount of the current in the line. When the monitoring loop current is greater than the product starting current, the sensor enters the normal working mode, can collect temperature, current and other relevant data, and upload to the acquisition device through wireless communication. When the line is idle or the load current is less than the starting current, the sensor uses internal battery power to maintain the working state.

The sensor terminal supports 4G/NB-IOT/LoRa/WiFi communication mode (NB-IOT/LoRa communication mode is used by default for battery power supply), which can overcome the wireless communication block caused by the special environment of the site, and can greatly simplify the field deployment time and reduce construction costs. This product has a wide range of current measurement, adopts high-quality magnetic core materials, and is easy to install. This product is used for current monitoring and acquisition in various scenarios, such as AC motors, lighting equipment, air compressors, heating ventilation and air conditioning devices, self-control systems of buildings, industrial urban networks, rural power grid renovation projects, etc.

2 Service Concept

Our company solemnly promise you:

 You buy not only the product, but also the meticulous and thoughtful technical support services!!!( =^_^= )

 This product, the site only needs ordinary workers to install electricity can be! No debugging!

 We provide free remote guidance, remote configuration and debugging service, and send the data to the user-specified cloud platform.

Free Internet of Things solution consulting services!

3 Product Features

3.1 Current Acquisition Characteristics

Collection type: AC

Current range: AC1A~400A

Maximum input: 100% (continuous) / 150% (1 min)

Current accuracy level: ± 1%FS

Energy source: power frequency magnetic field or internal replaceable lithium battery (540 mAh)

Maximum power consumption: 0.1W

CT power minimum starting current: 0.5A~1A, AC

Minimum start current Cold start time: 4min

Acquisition frequency: power frequency magnetic field: 5s battery: 3min

3.2 Temperature Acquisition Characteristics (Optional)

Acquisition type: Electrical contact point temperature

Temperature range: -40℃ to + 150℃

Temperature accuracy level: ± 2℃

3.3 Electrical Character

Power supply mode: battery power supply or 12V DC / 220V AC

Insulation impedance:> 100 MΩ (primary / secondary room)

3.4 Mutual Communication Characteristics

Wireless frequency: 433 MHz

Transmission distance: an open space of 50m

Wireless transmission mode: LoRa

3.5 Gateway Communication Features

Communication interface: Default RS485

Wireless transmission mode: 4G / NB-IOT / LoRa / WiFi

Communication protocol: MQTT / TCP / UDP / HTTP / SSL / ModBus RTU, and other protocols can be customized

Data forwarding: any public network server

Number of gateway server centers: up to support data reporting to 7 cloud servers at the same time.

Heartbeat packet: support custom heartbeat packet, can be set to signal intensity.

Registration package: support custom registration package, can be set to IMEI code.

Positioning: Support LBS base station positioning to facilitate the query of device location.

3.6 Structural Property

Material: PC plastic (enclosure)

Main body protection level: IP 42

Body size: 65mm 36mm 63mm

Transformers probe structure: open-mouth type

Main body installation method: wall hanging or screw fastening

Installation mode of the transformer sensor: suspension installation

Installation method of temperature probe: belt binding type installation

3.7 Electromagnetic Compatibility

Electric fast transient pulse group immunity test

Perform the standard GB / T 17626.4; IEC 61000-4-4

Level: Level (2kV, 4kV)

Electrostatic discharge immunity test

Perform the standard GB / T 17626.2; IEC 61000-4-2

Grade: Grade (contact discharge 6kV, air discharge 8kV)

RF electromagnetic field radiation immunity test

Perform the standard GB / T 17626.6; IEC 61000-4-3

Grade: Level of (10V / m)

Power-frequency magnetic field immunity test

Perform the standard GB / T 17626.8; IEC61000-4-6

Grade: Class IV

3.8 Working Environment

Ambient temperature-25°C~75°C, humidity: 0~95% (non-condensing)

4 Product Core Advantages

v Simple installation, fast deployment, help the Internet of things project quickly landing

v Support live non-destructive installation, the user equipment does not need to power shutdown during installation

v The gateway supports custom registration package and heartbeat package, facilitating the platform to distinguish devices

v Gateway supports any private Internet of Things cloud platform and configuration software, providing data protocol docking

v Non-invasive measurement, which does not affect the normal operation of the equipment

v The gateway supports remote configuration parameters and FOTA remote upgrade to minimize personnel cost for site construction and maintenance

5 Data Reporting Communication Protocol

5.1 

For UDP / TCP / MQTT / HTTP and other push methods, users should provide the public network IP (or domain name) address and port number of the cloud server to receive the data.

Example of JSON format:

{"A":56.7,"B":55.8,"C":49.3,"D":1.2,"deviceID":"860344048491162"}

Message analysis:

{

"A": 56.7, / / 1st route current value

"B": 55.8, / / 2nd way current value (optional)

"C": 49.3, / / 4th way current value (optional)

"D": 1.2, / / 4th route current value (optional)

"deviceID": "860344048491162" / / Device ID

}

5.2  

If you need to customize other communication protocols, you can contact the business personnel to communicate. This product order over 1000 yuan, free customized communication protocol.

6 Platform Docking

6.1 Default Platform

The product is connected to our designated industrial Internet of Things platform by default, and the platform interface is as follows:

Computer-side browser interface

Mobile terminal WeChat access interface

6.2 The User Specifies the Platform

Take the connection of Ali Cloud platform as an example. After users create products and add devices on the Ali Cloud Internet of Things platform, users need to provide a triad: {ProductKey, DeviceName, DeviceSecret} and the MQTT theme to be released.

For example, the value of triples are:

ProductKey = b0FMK1Ga5cp

DeviceName = 862991419835241

DeviceSecret = y7MTCG6Gk33Ux26bbWSpANl4OaI0bg5Q

7 Application Cases

Monitoring of the working status / duration of the equipment

8 Installation and Maintenance

8.1 Battery Replacement

The sensor is powered by high-performance lithium battery, and the service life is up to 5 years. Please replace the battery after the service life.

Note: The measured current is greater than the starting current 1A, the sensor enters the normal working mode, collects the temperature, current and other relevant data regularly, and uploads it to the gateway device wirelessly. If the line is in no load or the load current is less than the starting current, the sensor uses an internal battery supply to maintain low power consumption.

8.2 Pilot Lamp

The sensor provides an indicator light for wireless communication when the indicator light shines.

9 Equipment Size

10  Contact Us

Website: www.daq-iot.com

Tel: +8619936624847

Email: shengrunan@daq-iot.com

    WhatsApp：+8619936624847