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R718PE
Wireless Top Mounted Ultrasonic Liquid Level Sensor
Wireless Top Mounted Ultrasonic
Liquid Level Sensor
R718PE 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 R718PE
- Page 1 R718PE 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...
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Page 2: Table Of Contents
Table of Content 1. Introduction .................................. 2 2. Appearance ................................... 3 3. Main Feature ................................4 4. Set up Instruction ................................. 4 5. Data Report .................................. 6 5.1 Example of ReportDataCmd..........................6 5.2 Example of ConfigureCmd ........................... 7 5.3 Example of Switching Mode ..........................9 5.4 Example of DeadZoneDistance .......................... -
Page 3: Introduction
1. Introduction R718PE is a ClassA device based on LoRaWAN open protocol of Netvox. R718PE is a wireless communication device that can detect liquid level and parking space. The device is connected to an ultrasonic sensor to detect its current liquid level or the status of parking space, and the detected data will be transmitted to other devices through the wireless network for display. -
Page 4: Appearance
2. Appearance Indicator Function Key Ultrasonic Ranging Sensor The distance detected by the sensor is calculated from the plane... -
Page 5: Main Feature
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 battery life time for varied models at different configurations. 4. Set up Instruction... - Page 6 Turn on the device to search the previous network to join. Had joined the network The green indicator stays on for 5 seconds: success (not at factory setting) The green indicator remains off: fail Suggest to check the device verification information on the gateway or consult your platform Fail to Join The Network server provider.
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Page 7: Data Report
2. The interval between two reports must be the MinTime 3. R718PE report battery voltage, status, distance, fill level Please refer Netvox LoRaWAN Application Command document and Netvox Lora Command Resolver http://www.netvox.com.cn:8888/page/index to resolve uplink data. 5.1 Example of ReportDataCmd FPort：0x06... -
Page 8: Example Of Configurecmd
Device Report Device NetvoxPayLoadData Type Type Status (1Byte) Battery Distance FillLevel Reserved R718PE 0xB1 0x01 0x00_Off (1Byte, unit:0.1V) (2Bytes,Unit:1mm) (1Byte,Unit:1%) (3Bytes,fixed 0x00) 0x01_On Ex. Uplink: 01B101240001F419000000 Byte Value Attribute Result Resolution Version DeviceType ReportType Battery 3.6v 24(HEX)=36(DEC),36*0.1v=3.6v Status 6th~7th 01F4... - Page 9 DistanceChange ReadConfig MinTime MaxTime BatteryChange Reserved 0x82 (2byte Unit: ReportRsp (2bytes Unit: s) (2bytes Unit: s) (1byte Unit: 0.1v) (2byte) 1mm) SetOnDistance OnDistanceThreshold Reserved 0x03 ThresholdRreq (2byte Unit: 1mm) (7Bytes, Fixed 0x00) SetOnDistance Status Reserved 0x83 ThresholdRrsp (0x00_success) (8Bytes, Fixed 0x00) GetOnDistance Reserved 0x04...
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Page 10: Example Of Switching Mode
(2) Read the device parameter Downlink: 02B1000000000000000000 Device Return: 82B1003C003C0101F40000 (device current parameter) (3) Configure the device parameter FillMaxDistance = 5000mm Downlink: 05B1138800000000000000 Device returns: 85B1000000000000000000 (configuration success) 85B1010000000000000000 (configuration failure) (4) Read device parameter FillMaxDistance Downlink: 06B1000000000000000000 Device returns: 86B1138800000000000000 (device current parameter) 5.3 Example of Switching Mode Switching mode is achieved by setting the values of FillMaxDistance and OnDistanceThreshold. -
Page 11: Example Of Deadzonedistance
If the current device is used as liquid level detection, switch it to parking space detection a. Set FillMaxDistance =0 Downlink: 05B1000000000000000000 Device returns: 85B1000000000000000000 b. Read FillMixDistance, confirm whether it has been set successfully Downlink: 06B1000000000000000000 Device returns: 86B1000000000000000000 c. -
Page 12: Example For Mintime/Maxtime Logic
5.5 Example for MinTime/MaxTime logic Example#1 based on MinTime = 1 Hour, MaxTime= 1 Hour, Reportable Change i.e. BatteryVoltageChange=0.1V MaxTime MaxTime leeping(MinTime) leeping(MinTime) Wakes up and collects data Wakes up and collects data Wakes up and collects data REPORTS 3.6V REPORTS 3.5V REPORTS 3.6V Note:... -
Page 13: Application
Notes : 1) The device only wakes up and performs data sampling according to MinTime Interval. When it is on sleeping mode, it does not collect data. 2) The data collected is compared with the last data reported. If the data variation is greater than the ReportableChange value, the device reports according to MinTime interval. - Page 14 Illustration 2 The calculate method of water level percentage of DeadZoneDistance can be set FillLevel = ((H - D) / H-d) * 100% Note: (1) The detecting range of the device is 250mm~8000mm (2) When the device is used as water level detection or trash can detection, the detected distance (Distance) and the percentage of water level or garbage (FillLevel) are reported.
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Page 15: Installation
(3) When the device is used as parking space detection, it will report the detected distance (Distance) and the parking status (Status) (with car, report “on”; without car, report “off” ), but FillLevel is not reported. (At this time, FillLevel defaults 0.) (4) When Distance ≤... - Page 16 4. If the top of the water tank can be opened, it is recommended to make a hole of diameter 32mm on the top of the water tank. 5. If the top of the water tank cannot be opened, the hole made on the top of the water tank is recommended to be 45mm diameter. It is recommended to add a gasket (size: 32.4*57.4*3mm) between the hole and the sensor.
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Page 17: Information About Battery Passivation
8. 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 18: How To Activate The Battery
8.2 How to activate the battery a. Connect a battery to a 68ohm resistor in parallel b. Keep the connection for 6~8 minutes c. The voltage of the circuit should be ≧3.3V 9. Important Maintenance Instruction Kindly pay attention to the following in order to achieve the best maintenance of the product: •...