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Discontinued
LT830 Series Digital Indicating Controllers - Discontinued
LT830 series, new digital indicating controller, is user-friendly 1/16 DIN controllers featuring socket type terminal board, 24V AC/DC power supply, international compliance, and MODBUS protocol communication. The software package provides the ease of parameter setup and data monitoring.
TabView Example - Basic From Existing Markup
    Universal inputs
    Thermocouple, Resistance Thermometer, DC voltage, The current input utilizes a 250Ω shunt resistor with voltage range.
    PID Algorithms for easy operation
    Suitable for any type of instrumentations, devices and process.
    User friendly LED numerical display
    Simple key functions for easy operation.
    Global standards approvals
    Conforms to CE approval and IP protection (IEC529 IP66) RS485 serial communications is built with MODBUS protocol.
    Various options
    Socket terminal board, 24V AC/DC power supply.
    Software package
    KIDS + PASS software provides parameter setup and data monitoring.
    Terminal type
    Model Output signals Waterproof
    LT83010000-00A On-off pulse type None
    LT83020000-00A SSR drive pulse type None
    LT83010000-01A On-off pulse type Provided
    LT83020000-01A SSR drive pulse type Provided
    Socket type
    Model Output signals Waterproof
    LT83010000-02A On-off pulse type None
    LT83020000-02A SSR drive pulse type None
    LT83010000-03A On-off pulse type Provided
    LT83020000-03A SSR drive pulse type Provided
    Input signals Measuring ranges
    Thermocouples B 0 to 1820°C
    R 0 to 1760°C
    S 0 to 1760°C
    N 0 to 1300°C
    K -200 to 1370°C
    -199.9 to 500°C
    E -199.9 to 700°C
    J -199.9 to 900°C
    T -199.9 to 400°C
    Resistance thermometers Pt100 -199.9 to 850°C
    -199.9 to 200°C
    DC Voltage 5V Scaling setting range: -1999 to 9999. Decimal place can be adjusted.

    (Note) For DC current input, a shunt resistor (250Ω) is necessary.
    Input Specifications
    Input signals Thermocouples B, R, S, N, K, E, J, T
    Resistance thermometers Pt100
    DC voltage 0 to 5V
    DC current 4/20mA [By using a 250Ω shunt resistor (sold separately) and 5V range (1/5V)]
    Measuring range Refer to the list of measuring ranges.
    Accuracy ratings ±0.3% of measuring range ± 1 digit (at reference operation conditions)
    Reference junction compensation accuracy ±1.0°C (23°C ± 10°C), ±2.0°C (-10°C to 50°C)
    Sampling period Approx. 0.5 second
    Burnout Up scale (T/C input, RTD input)
    Allowable signal source resistance Thermocouples 200Ω or less
    Voltage input 1KΩ or less
    Resistance thermometers 10Ω or less (per wire) * Resistance of 3 wires needs to be equal.
    Input resistance T/C, DC voltage: 1MΩ or more
    Measuring current RTD: Approx. 125uA
    Measuring input shift
    (sensor correction)
    Can be set by the resolution being 0.1 times the setting resolution of SV (-1999 to 9999)
    Digital filter 0.0 to 99.9 seconds
    Scaling Range/scale of DC voltage/current input (-1999 to 9999), optional setting
    Scale decimal point 0 to 3
    Maximum allowable input range DC voltage: -5V/+8V DC
    Resistance thermometers: ±5VDC
    Maximum common mode voltage 30VAC
    Common mode rejection ratio (T/C input) 130dB or more (50/60Hz) (signal source resistance 1Ω or less)
    Series mode rejection ratio (T/C input) 50dB or more (50/60Hz) (signal source resistance 1Ω or less)
    Control Specifications
    Control cycle time Approx. 0.5 seconds
    Control system On-off pulse type PID system
    SSR drive type PID system
    Control set point 1 set point. 4-digit setting.
    Set point limiter Within measuring range
    Set point ramp function Set point ramp unit °C/minute (common to rising/falling)
    Set point rising ramp 0 to 9999 (0=no operation)
    Set point falling ramp 0 to 9999 (0=no operation)
    PV start function At SV change, power-on, changing from Ready to Run
    Control set point accuracy ratings Relative error to displayed value: ±1 digit
    Auto-tuning Standard (Manual setting of PID constants enabled)
    PID constants P: 0.1 to 999.9%
    I: 0 to 9999 seconds
    D: 0 to 9999 seconds
    PID deadband (gap) 0.0 to 9.9%
    Anti-reset windup High limit 0.0 to 100.0%
    Low limit -100.0 to 0.0%
    Overshoot suppression function ON/OFF selectable
    Control operation With direct/reverse action switching
    Output Specifications
    On-off pulse type Output signal: On-off pulse conductive signal (relay "a" contact output)
    Contact ratings: Resistive load: 100VAC 3A, 240VAC 3A, 30VDC 3A, Inductive load 100VAC 1.5A, 240VAC 1.5A, 30VDC 1.5A
    Electrical relay life: More than 100,000 times
    Pulse cycle: Approx. 1 second to 180 seconds adjustable (1 second increments)
    Contact protection element: Not built-in [If required, add a contact protection element (sold separately) externally.]
    SSR drive pulse type Output signal: On-off pulse voltage signal
    - At ON: 12VDC ±20% (load current 20mA or less)
    - At OFF: 0.8VDC or less
    Pulse cycle: Approx. 1 second to 180 seconds adjustable (1 second increments)
    Output limiter 1 set
    High limit: 0.0 to 105.0%  Low limit: -5.0 to 100.0%
    Output variation limiter 0.1 to 100.0%
    Output preset -100.0 to 100.0%
    Run/Ready Run/Ready (control stop, output: control output value at Ready) switchable
    Control output at Ready -5.0 to 105.0%
    Control at power recover Continuous/Ready switchable
    Event Specifications
    Event calculation 2 points
    Event output point None (standard)
    2-points relay output (EV1/EV2) can be added as an option.
    Event type Setting to each of Event 1/2
    Absolute value alarm High/Low, standby enable/disable
    Deviation alarm High/low/high & low, standby enable/disable, FAIL, heater disconnection alarm (option)
    Event set point Event 1/2 individual setting
    Event dead band Can be set by the resolution being 0.1 times the setting resolution of SV, Setting to each Event 1/2
    Event output phase Normal/reverse switchable
    Event output at Ready Off/computation switchable
    Display Specifications
    Display type 4-digit seven-segment LED display, two lines
    Status display 5 independent LEDs
    Display content First LED (green display) At operation mode: Measured value (PV)
    At setting mode: Parameter item
    Second LED (red display) At operation mode: Setpoint (SV)
    At setting mode: Parameter
    Status LED (red/green) AT(green): Blinks during the auto-tuning is executed.
    OUT1 (green): Lights when the control output 1 (heating) is output
    OUT2 (green): Lights when the control output 2 (heating) is output
    EV1 (red): Lights when event1 is active
    EV2 (red): Lights when event2 is active
    Automatic return Return to operation mode if any key is not pressed for more than 3 minute in setting mode.
    Key lock Locking function of parameters, 4 levels
    PS Sheet LT830 Series PSE-348A Download
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