Battery Powered Flow Meter

Battery powered Flow Meter Ultrasonic water meter Stratified fluid piping design for two-channel measurement, measurement accuracy ·

  • Range than the width, and less than 0.01m /s starting flow ·

  • Display large amount of information, with the screen display 9 digital display four cumulative flow and instantaneous flow figures ·
  • Design of energy-saving, power-saving features such as automatic meter will empty tube or long-term fluid standstill ·
  •  Full IP68 protection class design, the components completely sealed to protect, even if the water can be long-term work ·
  • Design at the time, there were a total of records and data collection functions on the month, day.
  • Ultrasonic flow meter With multiple communication interface mode; TTL level pulse output and USART interface for easy connection to other low power devices; standard RS485 interface; infrared communication interface; support CJ-188 communication protocol.
  • Supports standard MODBUS, M-BUS, HART communication protocol, compatible communications protocol Haifeng ASCⅡ code ·
  • Output signal and diverse: Available two isolated pulse signal output, (which pulse and pulse width equivalent programmable); may also 4-20mA two-wire output ·
  • With online software upgrades · With Dual PT1000 temperature measurement function, can achieve heat measurement ·
  •  Built-quantitative control can be achieved manually or set the time automatically start controller, thus achieving automatic timing quantitative or quantitative irrigation water ·
  • Depending on customer needs to select a variety of units, including cubic US gallons, cubic feet and liters ·
  •  Built-in lithium battery, the battery life of more than 6 years

Technical Parameter

Project Parameters
Accuracy class 2 (measurement period: 1 second)
Turndown ratio 100, initiating a flow rate of less than 0.006m / s
Measurement Range Water, sewage, water (other liquids to be customized), and full pipeline
Measuring medium temperature 0.1-30 ℃
Work environment Temperature: -10 ~ 45 ℃; humidity ≤100% (RH)
Pressure Rating 1.6MPa / 2.5MPa optional
Upstream of the flow field sensitivity level U3
Downstream flow field sensitivity level D0
Climatic and mechanical environmental safety rating Grade C
Electromagnetic Compatibility Level E2 level
Communication Interface RS485 / USART / IR / USART serial communication bus, etc. Optional
The output signal 4-20mA analog two-wire output (two-way isolation OCT or TTL optional, pulse width programmable)
Communication protocol Haifeng fully compatible protocol (individual very distinct command) also supports the standard MODBUS, M-BUS, CJ-188 communication protocol
Heat measurement Access Dual PT1000 achieve heat measurement
Power supply Built-in lithium battery (3.6V) / External DC5 ~ 40V
Protection class IP68
Local Display Two-line display includes nine cumulative amount, four instantaneous flow, as well as prompt and unit status
Data Storage Using EEPROM / FLASH to store data, cumulative flow automatically record 128 months ago, the first 512 days
Flow measurement cycle Measuring status: 1 times / sec (also can be set to 2 to 4 times / sec); verification status: 4 times / sec
Power and Power Built-in 3.6V lithium battery can be used continuously for more than six years, external DC8-36V

Flow Range

Nominal diameter

(Mm)

Turndown ratio

R

Flow rate (m3/ h)
Starting flow Minimum flow Q1 Transitional flow Q2 Common flow Q3 Overload flow Q4
DN15 200 0.003 0.0125 0.020 2.500 3.125
DN20 200 0.0035 0.016 0.030 3.200 4.000
DN25 200 0.007 0.020 0.030 4.000 5.000
DN32 200 0.010 0.032 0.0504 6.300 7.875
DN40 200 0.015 0.100 0.160 20.000 25.000
DN50 100 0.030 0.400 0.640 40.000 50.000
DN65 100 0.059 0.630 1.008 63.000 78.750
DN80 100 0.064 1.000 1.600 100.000 125.000
DN100 100 0.094 1.600 2.560 160.000 200.000
DN125 100 0.120 2.000 3.200 200.000 250.000
DN150 100 0.270 2.500 4.000 250.000 312.500
DN200 100 0.315 4.000 6.400 400.000 500.000
DN250 100 0.508 4.000 6.400 400.000 500.000
DN300 100 0.770 6.300 10.080 630.000 787.500