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netvox R718VB User Manual

Wireless capacitive proximity sensor
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R718VB
Wireless Capacitive Proximity Sensor
Wireless Capacitive Proximity Sensor
R718VB
User Manual
Copyright© Netvox Technology Co., Ltd.
This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained in strict
confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX Technology. The
specifications are subject to change without prior notice.

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Summary of Contents for netvox R718VB

  • Page 1 This document contains proprietary technical information which is the property of NETVOX Technology. It shall be maintained in strict confidence and shall not be disclosed to other parties, in whole or in part, without written permission of NETVOX Technology. The...

  • Page 2: Table Of Contents

    Table of Contents 1. Introduction ..........................2 2. Appearance ..........................3 3. Features ............................ 3 4. Set up Instruction ........................4 6. Data Report ..........................5 6.1 Example of ReportDataCmd ....................6 6.2 Example of Report Configuration ..................7 6.3 Example for MinTime/MaxTime logic ................8 7.

  • Page 3: Introduction

    1. Introduction R718VB is to detect the level of toilet tank water, liquid hand soap, and liquid level of non-metallic pipes (pipe outside diameter: D ≥ 11MM). This device is connected to a non-contact capacitive sensor, which can be installed on the exterior of the container. Without direct contact, the sensor can detect the current level of water or liquid hand soap within the measurement range.

  • Page 4: Appearance

    ⚫ Applicable to third-party platforms: Actility / ThingPark / TTN / MyDevices / Cayenne ⚫ Low-power consumption and long battery life Note: Battery life is determined by the sensor reporting frequency and other variables. Please refer to http://www.netvox.com.tw/electric/electric_calc.html. On this website, users can find various types of battery lifetime in different configurations.

  • Page 5: Set Up Instruction

    4. Set up Instruction On/Off Power on Insert batteries. (Users may need a screwdriver to open battery case.) Turn on Press and hold the function key for 3 seconds until the green indicator flashes once. Turn off (factory resetting) Press and hold the function key for 5 seconds until the green indicator flashes for 20 times. Power off Remove Batteries.

  • Page 6: Data Report

    When the liquid level changes from where the device cannot detect to where the device can detect. (0→1) If none of the above conditions is met, the device will report at the MaxTime interval. For the analysis of the data command reported by the device, refer to the Netvox LoRaWAN Application Command document and http://loraresolver.netvoxcloud.com:8888/page/index Note: The device send data cycle depends on real programming configuration according to the customer’s inquiry.

  • Page 7: Example Of Reportdatacmd

    (1Byte, unit:0.1V) (1Byte 0:off 1:on) (6Bytes,fixed 0x00) Example of Uplink: 019F012400000000000000 1st byte (01): Version 2nd byte (9F): DeviceType 0x9F－R718VB 3rd byte (01): ReportType 4th byte (24): Battery－3.6v 24 Hex=36 Dec 36*0.1v=3.6v 5th byte (00): Status 6th-11th byte (000000000000): Reserved...

  • Page 8: Example Of Report Configuration

    BatteryChange Reserved (4Bytes, ConfigReportReq 0x01 (2bytes Unit:s) (2bytes Unit:s) (1byte Unit:0.1v) Fixed 0x00) Status Reserved ConfigReportRsp 0x81 (0x00_success) (8Bytes,Fixed 0x00) R718VB 0x9F Reserved ReadConfigReportReq 0x02 (9Bytes,Fixed 0x00) MinTime MaxTime BatteryChange Reserved (4Bytes, ReadConfigReportRsp 0x82 (2bytes Unit:s) (2bytes Unit:s) (1byte Unit:0.1v) Fixed 0x00) (1) Configure the device report parameters MinTime = 1min (003C), MaxTime = 1min (003C), BatteryChange = 0.1v (0x01)

  • Page 9: Example For Mintime/Maxtime Logic

    6.3 Example for MinTime/MaxTime logic Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V MaxTime MaxTime sleeping (MinTime) sleeping (MinTime) Wakes up and collects data Wakes up and collects data Wake up and collects data REPORTS 3.6V REPORTS 3.6V REPORTS 3.6V...

  • Page 10: Application

    If none of the above conditions is met, the device will report at the MaxTime interval. 8. Installation Wireless Capacitive Proximity Sensor (R718VB) has two magnets on the back. When using it, the back can attach to a ferromagnetic material, or the two ends can be fixed to the wall with screws (should be purchased) Note: Do not install the device in a metal shielded box or around electrical equipment or it may affect the wireless transmission of the device.

  • Page 11: Measurement And Liquid Viscosity

    8.1 Measurement and liquid viscosity 8.1.1 What is dynamic viscosity? Dynamic viscosity is the tangential force per unit area required to move one horizontal plane with respect to another plane - at an unit velocity - when maintaining an unit distance apart in the fluid. 8.1.2 Dynamic viscosity A.

  • Page 12: Containers And Installation Instruction

    Sensitivity adjustment knob The higher the sensitivity, the lower the induced liquid level. R718VB Note: The liquid level is detected in the upper and lower edges of the sensing film, which is normal. Mucilage glue...

  • Page 13: Adjust Sensitivity

    9. Information about Battery Passivation Many of Netvox devices are powered by 3.6V ER14505 Li-SOCl2 (lithium-thionyl chloride) batteries that offer many advantages including low self-discharge rate and high energy density. However, primary lithium batteries like Li-SOCl2 batteries will form a passivation layer as a reaction between the lithium anode and thionyl chloride if they are in storage for a long time or if the storage temperature is too high.

  • Page 14: How To Activate The Battery

    9.2 How to activate the battery a. Connect a battery to a resistor in parallel b. Keep the connection for 5~8 minutes c. The voltage of the circuit should be ≧3.3, indicating successful activation. Brand Load Resistance Activation Time Activation Current 165 Ω...

  • Page 15: Description Of Waterproof Grade

    11. Description of Waterproof Grade 1. According to Enclosure Protection Class, this standard is equivalent to IEC 60529:2001 Degrees of Protection Provided by Enclosures (IP Code). 2. The test method of IP65 waterproof grade is: spray the device in all directions under 12.5L/min water flow for 3min, and the internal electronic function is normal.

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