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DST-27500 LCD manual operator

Classification:

LCD PID adjustment series

DST-27500 series with USB data transfer function and SD card expansion function can select fixed-point control, external given control, valve position feedback control, multi-stage curve, relay forward and reverse rotation, thyristor forward and reverse rotation control, etc., can select fixed-point control or multi-stage curve control, with PID parameter self-tuning function, control output manual/automatic disturbance-free switching function, accurate control and no overshoot.

Keywords: Isolator

4 universal signal input, can input DC current, DC voltage, millivolt, thermal resistance, thermocouple and other signals; measurement accuracy of 0.2 FS • With analog transmission output and relay contact output optional • Support RS485, RS232 serial interface, using standard MODBUS RTU communication protocol • Support RS232C printing function, with manual printing, timing printing function • With DC24V feed output for field transmitter power distribution • With USB data transfer function and SD card expansion function • Optical isolation technology is adopted between input, output, power supply and communication
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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)
    Switching output: relay control output-AC220V/2A, DC24V/2A (resistive load)
    SSR Solid State Relay Drive Voltage Output-DC 12±2.5V/30mA (Capacity)
    SCR SCR zero-crossing trigger pulse output-AC400V/0.5A (capacity)
    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, RS-485 communication distance up to 1km; RS-232 communication distance up to: 15 meters.
    Working power supply AC 100~240V (switching power supply),50-60HZ; DC 20~29V (switching power supply).
    Structure -Standard snap-in

  • 1

    Selection Guide

    ① Specifications and dimensions ② Control output (Note 1) ③ Alarm output (Note 2) ④ Power supply
    Code Width * Height * Depth Code Control type (load resistance RL) Code Alarm limit
    (relay contact output)    		 Code Voltage range
    A
    B
    C    		 160*80*110mm (horizontal)
    80*160*110mm (vertical)
    96*96*110mm (mode)    		 0
    1
    2
    3
    4
    5
    K1
    K3
    K4
    K6
    K7
    K8
    K9    		 4-20mA(RL≤ 480Ω)
    1-5V (rl≥250kΩ)
    0-10mA(RL≤ 960Ω)
    0-5V (rl≥250kΩ)
    0-20mA(RL≤ 480Ω)
    0-10V (rl≥4kΩ)
    Relay contact output
    SCR zero-crossing trigger pulse output
    Solid state relay drive voltage output
    Three-phase SCR zero-crossing trigger pulse output
    Relay forward and reverse output
    SCR forward and reverse output (applicable to high-power load)
    Solid state relay forward and reverse output    		  X
     1
     2
     3
     4
     5    		 No output
    1 Limit alarm
    2 Limit alarm
    3 Limit alarm
    4 Limit alarm
    5 Limit alarm

    A

     

    D

    		 AC/DC 100-240V
    (50/60Hz)
    DC 12-36V
    ⑥ Additional functions (the following functions are optional, separated by "/", and optional functions can be omitted)
    Transformation output (Note 2) Communication output Feed output For instruments with records
    Code Output channel Code Communication interface (communication protocol) Code Feed output (output voltage) USB transfer function
    1
    2
    3    		 1 transmission output
    2-way transmission output
    3-way transmission output    		 D1
    D2
    D3    		 RS485 communication interface (Modbus RTU)
    RS232 communication interface (Modbus RTU)
    RS232C print interface    		 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)

    Note: DST-27500 control type (load resistance RL) is only K7,K8,K9 (code)

     

    Model selection example

    1