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  • 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
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