Milesight EM300-CL User Manual
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Milesight EM300-CL User Manual

Milesight EM300-CL User Manual

Lorawan capacitive level sensor
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Capacitive Level Sensor
Featuring LoRaWAN
®
EM300-CL
User Guide

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Summary of Contents for Milesight EM300-CL

  • Page 1 Capacitive Level Sensor Featuring LoRaWAN ® EM300-CL User Guide...

  • Page 2: Safety Precautions

    In order to protect the security of the device, please change device password when first  configuration. The default password is 123456. The device is not intended to be used as a reference sensor, and Milesight will not should  responsibility for any damage which may result from inaccurate readings.

  • Page 3: Revision History

    Revision History Date Doc Version Description Oct. 31, 2023 V 1.0 Initial version Nov. 15, 2024 V 1.1 Add calibration settings.

  • Page 4: Table Of Contents

    Contents 1. Product Introduction ......................... 5 1.1 Overview ...........................5 1.2 Features ........................... 5 2. Hardware Introduction ........................5 2.1 Packing List ..........................5 2.2 Hardware Overview ......................... 6 2.3 Dimensions(mm) ........................6 2.4 Power Button ........................... 7 3. Operation Guide ..........................7 3.1 NFC Configuration ........................

  • Page 5: Product Introduction

    ® technology that supports low power consumption, it allows the built-in high-capacity battery to last for several years without replacement. Moreover, EM300-CL is compatible with both Milesight’s gateway and Milesight IoT Cloud to achieve remote monitoring and smart data management, allowing water conservation.

  • Page 6: Hardware Overview

    1 × 1 × 3M Double Sided 1 × Cable-tie Warranty Card Tape If any of the above items is missing or damaged, please contact your sales representative. 2.2 Hardware Overview 2.3 Dimensions(mm) Transceiver: Electrode Detection Sheet:...

  • Page 7: Power Button

    Light Off: Device is off. 3. Operation Guide 3.1 NFC Configuration EM300-CL can be monitored and configured via NFC. Please refer the following steps to complete configuration. 1. Download and install “Milesight ToolBox” App from Google Play or Apple Store.

  • Page 8: Lorawan Settings

    The port used for sending and receiving data, default port is 85. OTAA and ABP mode are available. Join Type Note: Select OTAA mode if you use Milesight IoT Cloud or Milesight Development Platform to manage devices. Application Key Appkey for OTAA mode, default is 5572404C696E6B4C6F52613230313823.
  • Page 9 RX2 Data Rate RX2 data rate to receive downlinks. RX2 Frequency RX2 frequency to receive downlinks. Unit: Hz Enable or disable the frequency to send uplinks. If frequency is one of CN470/AU915/US915, enter the index of the channel to enable in the input box, making them separated by commas.

  • Page 10: Basic Settings

    3) Please re-calibrate it if the full liquid height changes. Change Password Change the password for ToolBox App to write this device. 3.4 Advanced Settings 3.4.1 Calibration Settings EM300-CL detects the liquid level status by judging the capacitance difference values of the two electrode sheets.
  • Page 11 Full No Sure No Sure Empty Empty If the device reports error level status, please refer to below checklist: The sensor meets the installation requirements.  full liquid calibration is operated.  If still not work, please complete below steps to adjust the judgement values. 1.
  • Page 12 4. Add the liquid to the full level of the container, then wait for more than 1 minute and read the device to record the current value ΔC2. 5. Calculate the judgement value result: |ΔC2-ΔC1|. Example: ΔC1=-89, ΔC2=-58, the result is 6.

  • Page 13: Alarm Settings

    3.5 Maintenance 3.5.1 Upgrade 1. Download firmware from Milesight website to your smartphone. 2. Open Toolbox App and click Browse to import firmware and upgrade the device. Note: 1) Operation on ToolBox is not supported during an upgrade.

  • Page 14: Backup

    3.5.2 Backup EM300 devices support 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. Attach the NFC area of smartphone to the device to read the device. 2.
  • Page 15 3. Go to Template page, select and click the target template, then click Write and attach the NFC area of smartphone to the target device to import the configuration.

  • Page 16: Reset To Factory Default

    Note: Check the box of target template to delete it, or export this template as JSON format file and save it to the smartphone. 3.5.3 Reset to Factory Default Please select one of following methods to reset device: Via Hardware: Hold on power button (internal) for more than 10s until LED blinks.

  • Page 17: Installation

    4. Installation 4.1 EM300 Device Installation 1. Attach EM300 device to the wall and mark the two holes on the wall. The connecting line of two holes must be a horizontal line. 2. Drill the holes according to the marks and screw the wall plugs into the wall. 3.

  • Page 18: Sensor Installation

    Keep the distance of both detection electrode sheets more than 15cm to avoid detection  interference if you have two EM300-CL sensors. 5. Battery Replacing When the batteries have run out of power, please remove the back cover to replace the new...

  • Page 19: Communication Protocol

    1 Byte 1 Byte N Bytes 1 Byte 1 Byte M Bytes 1 Byte For decoder examples please find files on https://github.com/Milesight-IoT/SensorDecoders. 6.1 Basic Information EM300 series sensors report basic information of sensor whenever joining the network. Item Channel Type Description...

  • Page 20: Sensor Data

    Example: ff0bff ff0101 ff166136c40091605408 ff090300 ff0a0101 ff0f00 Channel Type Value Channel Type Value (Power On) (Protocol Version) (V1) Channel Type Value Channel Type Value 6136c400916054 0300 (Device SN) (Hardware Version) (V3.0) Channel Type Value Channel Type Value 0101 (Software (V1.1) (Device Type) (Class A) Version)

  • Page 21: Downlink Commands

    Battery level: 01 => 1% 6.3 Downlink Commands EM300-CL supports downlink commands to configure the device. The application port is 85 by default. Command Channel Type Byte Description Reboot Reporting Interval 00 + Interval Time(2B), unit: min 00 + Interval Time(2B), unit: min...
  • Page 22 Value (C1'-C1)&(C2'-C2), UINT16/100 Byte 8-9: Liquid Shortage 2 Judgement Value (C1'-C1)&(C2'-C2), UINT16/100 00: Capacitance Calibration Value of Electrode Sheets 01: Capacitance Current Value of Enquiry Calibration Value Electrode Sheets 02: Judgement Value Enquiry calibration value reply: Channel Type Enquiry ID Description Byte 1-2: C1', UINT16/100 Byte 3-4: C2', UINT16/100...
  • Page 23 ffbe00 Channel Type Value 00=Capacitance Calibration Value of Electrode Sheets Reply: febe 00 2015cd15ad00 Channel Type Value 00=Capacitance Calibration Value of Electrode Sheets C1': 2015=>1520=5408/100=54.08 C2': cd15=>15cd=5581/100=55.81 ΔC': ad00=>00ad=173/100=1.73 5. Set the full liquid judgment value as 0.8. ffbf 03 5000 0000 0000 0000 Channel Type Value...

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