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Model：R718PA22
Wireless Bottom-Mounted Ultrasonic Liquid Level
Sensor
Wireless Bottom-Mounted
Ultrasonic Liquid Level Sensor
R718PA22
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 R718PA22
- Page 1 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...
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Page 2: Table Of Contents
Table of Content 1. Introduction ....................2 2. Appearance ....................2 4. Main Characteristics .................. 3 5. Operation ....................3 6. Data Report ....................4 7. Installation ....................7 7.1 Install the sensor at the bottom of the container / tank: ..... 7 7.2 How to find the correct detection point .......... -
Page 3: Introduction
1. Introduction The R718PA22 is a wireless communication device that measures the liquid level with an ultrasonic liquid level sensor. Ultrasonic liquid level sensor installed at the bottom of the container, it may measure water, gasoline, diesel and small, medium, large capacity storage tanks (metal, plastic, glass material). -
Page 4: Main Characteristics
4. Main Characteristics ⚫ Adopt SX1276 wireless communication module ⚫ DC 12V adapter power supply ⚫ IP Rating: Main body - IP65/IP67 (optional), ultrasonic probe - IP67 ⚫ RS485 communication ⚫ The base is attached with a magnet that can be attached to a ferromagnetic material object ⚫... -
Page 5: Data Report
Max time: Max Interval Minimum time: Min Interval (detect the current voltage value every Min Interval by default) Battery Voltage Change: 0x01 (0.1V) // R718PA22 is power by adapter, the value invalid Depth Change: 0x0001 (1mm) TemperatureChange: 0x01 (1 ℃) Note: The data transmission period of the device has been programmed. - Page 6 Example of ConfigureCmd FPort：0x07 Bytes Var (Fix =9 Bytes) CmdID DeviceType NetvoxPayLoadData CmdID– 1 byte DeviceType– 1 byte – Device Type of Device NetvoxPayLoadData– var bytes (Max=9bytes) Device Description Device NetvoxPayLoadData Type Temperature Reserved Config MinTime MaxTime BatteryChange DepthChange 0x01 Change (1Bytes,Fixed ReportReq...
- Page 7 (2) Read device configuration parameters Downlink: 029B000000000000000000 The device returns: 829B003C003C0100050200 (current device configuration parameters) (3) Configure device measure type: 01 = Water, 02 = Gasoline, 03 = Diesel oil Downlink: 039B020000000000000000 // Gasoline The device returns: 839B000000000000000000 (Configuration succeeded) 839B010000000000000000 (Configuration failed) (4) Read device configuration parameters Downlink: 049B000000000000000000...
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Page 8: Installation
Example#3 based on MinTime = 15 Minutes, MaxTime= 1 Hour MaxTime The status changed MinTime MinTime MinTime MinTime MinTime MinTime 1H15 1H30 Collects data Collects data Collects data Collects data Collects data Collects data Collects data REPORTS Does not report REPORT Does not report Does not report... - Page 9 2. Place the container or tank in a horizontal position, preferably the angle between the container or tank and the horizontal plane is less than 2 degrees. 3. Make sure the container / tank is full or at least 2/3 of the liquid. 4.
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Page 10: How To Find The Correct Detection Point
7.2 How to find the correct detection point Check the reported installation information. “0” means that it can be installed at this detection point “1” means it cannot be installed at this detection point When selecting the correct detection point, pay attention to the following points: (1) Ensure that the working surface of the sensor is in a horizontal position, and the working surface is parallel to the liquid level in the tank;... -
Page 11: Important Maintenance Instruction
8. Important Maintenance Instruction Kindly pay attention to the following in order to achieve the best maintenance of the product: • Keep the device dry. Rain, moisture, or any liquid, might contain minerals and thus corrode electronic circuits. If the device gets wet, please dry it completely.
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