B-IOT ultrasonic valve free water meter, also known as ultrasonic intelligent remote transmission water meter, is used for pipelines. The large and small caliber ultrasonic valve free water meter measures the fluid flow rate by measuring the difference between the forward and backward propagation time of ultrasonic pulses in the fluid, and calculates the flow rate of the fluid in the pipeline
Manufacturer of NB IoT Internet of Things Ultrasonic Valve free Water Meter
A new type of water meter uses the difference between the forward propagation time and backward propagation time of ultrasonic pulses in the fluid to measure the fluid velocity, calculate the flow rate of the fluid in the pipeline, and collect temperature parameters for temperature compensation to further calculate the water flow rate. It has the advantages of low starting flow rate, wide range ratio, high precision, high stability, high reliability, and high service life. Satisfy the flow curve requirements for partition metering, thereby achieving the need for flow comparison and leakage control of partition metering scales, and providing strong data support for water companies to create smart water management and big data analysis.
characteristic
- Accurate measurement: using picosecond level high-precision chips, with high measurement accuracy and low starting flow rate, it can achieve drip measurement;
- Data storage: It can store 24 monthly records, 360 daily records, and 192 hourly records. The data content includes cumulative traffic (0.01m3)* High flow rate (0.01m3/h), water flow time (minutes), low temperature (Celsius), sensor signal strength, alarm status, record generation time, etc. The data can be saved for a long time after power failure;
- Data communication: Parameter setting, flow calibration, centralized meter reading and other functions can be achieved through infrared, RS-485, M-BUS, NB IoT, 4G, LoRa, LoRaWan, etc. And maintaining extremely low current consumption during data communication can greatly extend the service life of the battery. 4. Abnormal judgment: It has abnormal judgment, recording, and display functions in case of power undervoltage, ultrasonic transducer abnormality, or non full pipe (empty pipe) status in the pipeline during operation. It can monitor the battery, temperature, valve control, and flow in real time, record the date of failure and the * * data at that time.
- Alarm function: It has functions such as low voltage alarm, air traffic alarm, reverse flow alarm, temperature alarm, leakage alarm, and pipe burst alarm. After enabling the prepaid function, when the remaining water volume is less than the alarm water volume, it can alert the user to purchase water as soon as possible.
- Real time copying function: It can report the measurement data and status data in the meter in real time according to remote instructions.
- Step by step water pricing function: Embedded step by step water pricing function, which can be charged according to the parameters set by the upper computer.
- Low voltage detection function: It has a voltage detection function and reports it. When the battery is under voltage, it will report to the platform and display an alarm on the system platform homepage.
technical parameter
Tested medium: domestic water (other liquids need to be customized), and filled with pipes
Range ratio: R160 (default), R200, R250, R400, R800 (optional)
Nominal diameter: DN15-DN40
Nominal pressure: 1.0MPa
Work environment: B-level
Pressure loss: ≤ △ p40
Temperature rating: T30 (default)/T50/T90 (optional)
Sensitivity level of upstream flow field: U5
Sensitivity level of downstream flow field: D3
Electromagnetic compatibility level: E1 level
Communication interface: RS-485/M-BUS/Infrared/NB IoT/LoRa
Power supply: Built in lithium battery (3.6V)
Protection level: IP68
Button: Touch button
LCD display: LCD displays cumulative and instantaneous quantities, as well as status prompts and units
Data storage: EEPROM is used to store data, and the accumulated traffic of the first 24 months is automatically recorded
Measurement cycle: 4 times/second
Average power consumption:< 100uA
Work environment:- 25℃-55℃，≤ 93%RH