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DST-27620 liquid crystal volume totaler controller

Classification:

LCD Heat/Volume/Natural Gas Accumulation Series

DST-27620 series can be equipped with vortex street, orifice plate, nozzle, electromagnetic and ∨ cone and other flowmeter instruments, which have trade settlement function. They can set small flow compensation, power failure compensation and flow payment functions to solve trade settlement disputes between supply and demand. Through the upper computer software, users can write data into regular or irregular tanks by themselves, thus conveniently realizing high-precision liquid level <=> volume display control with signal disconnection compensation function, to solve the problem of flow loss caused by the failure of on-site temperature sensor and pressure sensor, it has the function of annual, monthly and daily report of cumulative flow. Power-on recording function, total power-off time and total power-off number recording function to prevent users from power-off and stealing steam.

Keywords: Isolator

• The instrument fully adopts surface mount technology, and adopts multiple protection and isolation design, with strong anti-interference ability and high reliability. With USB data transfer function, the storage time can be up to 720 days. It can automatically judge saturated steam to superheated steam, and is suitable for process monitoring of steam heat energy and total amount accumulation control. The historical curve or relevant historical data of process quantity change can be accessed at any time through U disk and upper computer analysis software, and can be used in conjunction with various flow sensors such as V cone. The instrument also has good anti-theft, anti-power-off and other performance characteristics. • With various flow calculation models. Can be equipped with vortex, orifice, nozzle, electromagnetic and ∨ cone and other flowmeter use
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  • Technical parameters
  • Structural outline drawing
  • Ordering Guide

  • General technical parameters

    Measurement input
    Input signal Current: 0 ~ 20mA, 0 ~ 10mA, 4 ~ 20mA, 0 ~ 10mA square, 4 ~ 20mA square
    Input impedance: ≤ 100Ω
    Maximum input current limit: ≤ 30mA
    Voltage: 0~5V, 1~5V, 0~10V (special customization), 0~5V square, 1~5V square, 0 ~ 20mV,
    0 ~ 100mV input impedance: ≥ 500KΩ
    Thermal resistance: Pt100, Cu50, Cu53, Cu100, BA1, BA2
    Linear resistance: 0 ~ 400Ω
    Thermocouples: B, S, K, E, T, J, R, N, F2, Wre3-25, Wre5-26
    Output signal Analog output: 4 ~ 20mA (load resistance ≤ 480 Ω), 0 ~ 20mA (load resistance ≤ 480 Ω), 0 ~ 10mA
    (load resistance ≤ 960 Ω), 1~5V (load resistance ≥ 250KΩ), 0~5V (load resistance ≥ 250KΩ),
    0~10V (load resistance ≥ 4K Ω)(special customization)
    Feed output: DC24V ± 1, load current ≤ 50mA
    Communication output: RS485/RS232 communication interface, baud rate 1200 ~ 9600bps can be set, using standard MODBUS RTU
    Communication protocol, the RS-485 communication distance can reach 1km; RS-232 communication distance can reach: 15 meters.
    Working power supply AC 100~240V (switching power supply),50-60HZ; DC 20~29V (switching power supply).
    Power consumption ≤ 5W
    Structure -Standard snap-in

  • 1

    Selection Guide

    ① Input channel ② Specifications and dimensions ③ Alarm output (Note 1) ④ Power supply
    Code Input channel Code Width * Height * Depth Code Alarm limit (relay contact output) Code Voltage range
    1
    2    		 1 input
    2-way input    		 A
    B
    C    		 160*80*110mm (horizontal)
    80*160*110mm (vertical)
    96*96*110mm (mode)    		 Default
    RL1
    RL2
    RL3
    RL4
    RL5
    RL6    		 No output
    1 Limit alarm
    2 Limit alarm
    3 Limit alarm
    4 Limit alarm
    5 Limit alarm
    6 Limit alarm

    A


    D

    		 AC/DC 100-240 V
    (50/60Hz)
    DC 12-36V
    ⑤ Additional functions (the following functions are optional, separated by "/", and unselected functions can be omitted)
    Transformed output (Note 1) Communication output Feed output For instruments with records
    Code Output channel Code Communication interface (communication protocol) Code Feed output (output voltage) SB transfer function Extended functionality
    1
    2
    3
    4    		 1 transmission output
    2-way transmission output
    3-way transmission output
    4-way transmission output

    D1
    D2

    		 RS485 communication interface (Modbus RTU)
    RS232 communication interface (Modbus RTU)

    1P
    2P

    		 1 feeder output
    2 feeder outputs
    As indicated by "2P(12/24)"
    The first 12V, the second 24V
    Feed output    		 Code Transfer function Code Extended functionality
    U USB card transfer
    (U disk)    		 SD SD Card Expansion
    (Micro SD卡)

     

    Model selection example

    1