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DST-27700 LCD multi-channel controller

Classification:

LCD Multichannel Control Series

DST-27700 series LCD display controller/paperless recorder is an intelligent multi-function secondary instrument, suitable for monitoring, controlling, recording and remote transmission of various process parameters.

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
Product Consulting
Product Manual
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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 ≥ 4KΩ)(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, 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).
    Structure -Standard snap-in

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    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
    10
    20
         		 8-way input
    16 input    		 A
    B
    C    		 160*80*110mm (horizontal)
    80*160*110mm (vertical)
    96*96*110mm (mode)    		 Default
    1
    2    		 No output
    Unified alarm
    Separately 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    		 Unified transmission
    Separately transfer

    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 card)

     

    Model selection example

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