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    Digital Counter, 8 Digit, Up/Down, Number/Length/Batch

    8 digit counter can be used for counting number/length/batch, position control of balers controlled by variable frequency motor, and measuring height, position and angle. Digital counter with up/down input modes can preset count value or length, and simultaneously display the total count, counting length and batch value in real time.
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    Delivery date: 6-12 days

    Digital counter has 8 digit display, 4 kinds of up/down input modes, DC 12V/24V external power supply.


    • Digital counter accuracy: 0.01%, minimum resolution: 0.0001.
    • Input/output signals photoelectric isolated, anti-interference ability.
    • Input: 4 kinds of input modes, a variety of input signals, various waveform pulse, grating, proximity sensors, photoelectric sensors, contact switches, encoders, etc. (NPN, PNP).
    • Output: 8 kinds of output modes to select, up to 3 segments control output, suitable for various control requirements.
    • 8 digit display, has external power supply DC 12V/24V/30mA especially for sensor.
    • Standard RS232 or RS485 MODBUS RTU communication, can be directly connected with computers, PLC or other equipments.


    Mode ATO-DIGC-FH8
    Weight 400g
    Accuracy 0.01%
    Power supply AC 90-260V, or AC/DC 12-30V/DC 24V, power dissipation≤5VA
    Input signal Pulse signal, square wave, sine wave, 5V≤H≤30V, 0≤L≤2V, rising edge trigger, frequency: 0.01~9KHz (square wave)
    Counting rate ≤5000 CPS (switching input, software selectable), ≤2000Hz (encoder input)
    Display counting range -19999999~99999999
    Ratio setting range 0.0000001~9999999.9
    Input impedance ≥10KΩ
    Relay output method R, N, C, F, H, L (count), upper and lower limits alarm, capacity AC 250V/3A, DC 30V/3A COSΦ=1
    Transmission output 4-20mA, 0-10V, etc. (range can be set)
    Insulation resistance ≥100MΩ (between DC 500V power terminal and external terminal)
    Dielectric strength AC 1500V 1min (between power terminal and external terminal)
    Environment Ambient temperature: 0~50°C, relative humidity: 35~85%RH
    External power supply DC 12V±5%, 50mA max / DC 24V±5%, 30mA max
    Protection class IP65

    Selection table:

    Dimension (length*height*depth) Power supply Function AL1 AL2 Communication interface External power supply Input signal
    8: 96*48*80mm with hole size 92*45mm V0: AC 90-260V;
    VE: AC/DC 12-30V, or DC 24V
    C: Number/length;
    B: Batch;
    P: Position control
    N: No output;
    R: Relay;
    N: No output;
    R: Relay;
    C0: No communication;
    C2: RS232;
    C4: RS485
    A: DC 12V/30mA;
    B: DC 24V/30mA;
    C: DC 5V
    I0: Two pulse inputs (encoder);
    I1: INA (one input for switching input)

    Digital counter up/down input modes:
    Mode A: Up (addition)
    INA counts up. INB is GATE function. When INB is high level (or shorted with +12V), INA input is forbidden.
    Digital counter up down mode a
    Mode B: Up/down (addition or subtraction)
    INA counts up. INB is count-down control function. When INB is high level, INA turns count-up into count-down.
    Digital counter up down mode b
    Mode C: Up/down (addition and subtraction)
    INA counts up, INB counts down.
    Digital counter up down mode c
    Mode D: Up/down (for encoder)
    INA signal leads INB signal (count-up). INA signal lags INB signal (count-down). It is often used for encoder or grating input.
    Digital counter up down mode d
    Wiring diagram:
    Digital counter up down wiring diagram
    Tips: Components of digital counter

    1. A, B input channels
      The function of the input channel is amplifying and shaping the measured signal to a standard pulse signal.
    2. Door
      The gate is a comparison circuit used for quantizing. It can control whether the counting pulse signal can input digital counter.
    3. Counting and display unit
      The counting and display circuit is used to count the pulse signal from the main gate and display the result of the counting as a digital form. For easy reading, digital counter usually uses a decimal counting circuit.
    4. Time base unit
      The time base circuit is mainly composed of a crystal oscillator, a frequency divider, and a frequency multiplier. The time base circuit is mainly used to generate various standard time signals. The timing signal can be single or multinomial.
    5. Control unit
      The function of the control circuit is to generate three control signals of gating signal, registering signal and zero resetting signal. So that various circuit units of digital counter can automatically measure in an orderly process according to the sequence of preparation, measurement and display.

    In this video, ATO will show you how to wire a digital counter. And how to set the basic parameters of digital counter.

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