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    LC–Series: Liquid Flow Controllers

    LC-Series Liquid Flow Controllers rapidly reach setpoints and maintain stable control of liquid volumetric flow rate or pressure, and simultaneously measure live flow, pressure, and temperature readings.
    • Fast control, multivariate data. Millisecond-response times immediately upon powering up, to control either mass flow, volumetric flow, or pressure and display instantaneous flow, pressure, and temperature readings, in your choice of engineering units.
    • Easy integration. Custom process ports and electrical connectors, and your choice of EtherNet/IP, EtherCAT, DeviceNet, Profibus, PROFINET, Modbus (RTU and TCP/IP), or serial communications for easy integration into your industrial process.

    Request a quote

    Accessories included with purchase

    Device specs and customization options

    Quick Specs
    LC-Series performance
    • Available full scale ranges: 0.5 CCM to 10 LPM
    • Steady state control range: 2% – 100% of full scale
    • Calibration accuracy, NIST-traceable: ±2% of full scale
    • Repeatability: ±2% of full scale
    • Typical control response time: as fast as 30 ms
    • Warm-up time: <1 s
    LC-Series operating conditions
    • Default calibration: water
    • Alternate calibrations (request at time of order): methanol, iso–propanol, ethanol, ammonia, dimethylether, iso–pentane, thiophene, iso–octane, heptane
    • Operating temperature: –10°C (non-freezing) to +60°C
    • Full scale operating pressure: 115 PSIA
    • Proof pressure: 215 PSIA
    Device Ranges & Full Specs

    Devices are custom ranged from 0.5 CCM full scale to 10 LPM full scale with controllable ranges of 2% to 100% of full scale.

    For a comprehensive device guide, read the liquid controller operating manual.

    Device Features
    Included with each device
    • Multi-variable process measurements: Simultaneously measure volumetric flow, liquid pressure, and liquid temperature.
    • User changeable units of measurement: Change the unit of measurement for pressure, flow, or temperature from our extensive list of engineering units.
    • Monochrome backlit LCD with integrated touchpad: Easily read measurements using the backlit display and control configurations with the user-friendly integrated touchpad.
    • User adjustable setpoint ramping & limits: Configurable ramp rates allow the process variable to be controlled as fast or as slow as desired, and configurable setpoint limits protect processes from inadvertent setpoint changes.
    • Valve close override and valve open override: Utilize alarms to quickly vent your system or stop all flow as needed.
    Request at time of purchase | Free
    • Optional integrated totalizers & batch control: Totalize volumetric flow every 1 ms for precise tracking of total flow over time and use batch control to dispense precise volumes.
    Request at time of purchase | Additional cost
    • Optional integrated potentiometer control: Use the integrated potentiometer to adjust setpoints with the simple turn of a knob.
    Device Customization Options
    Build and performance options
    • Communication protocols: Analog, RS–232, RS–485, DeviceNet, EtherCAT, EtherNet/IP, Modbus RTU or TCP/IP, PROFIBUS, PROFINET
    • Displays: Backlit monochrome or color; integrated or panel–mount
    • Process connections: NPT, SAE, AN, BSPP/G, welded compression, or VCR/VCO fittings
    • Elastomers: Viton, FFKM, EPDM, Silicone
    • Calibration: Custom liquid; custom calibration points
    Visit the device customization page
    Valve options & PID tuning
    • LC: small proportional control valve for flow ranges between 3 CCM and 500 CCM
    • LC with PCA designation: high-performance proportional control valve for flow ranges of 2 CCM and below
    • LCR: large Rolamite proportional valve for flow ranges greater than 500 CCM

    Note: Certain gases (including HCl, SO2, and Cl2) require LC with PCA designation.

    Custom PID valve tuning ensures maximum performance for your specific process conditions.

    Learn about valve sizing and PID tuning options
    Optional Accessories
    Accessories | Sold separately
    • Process port fittings and filters
    • Power supplies
    • Communications cables and conversion cables
    • BB3 and BB9 multi-drop breakout boxes
    Visit the accessories page

    Not exactly what you’re looking for?

    • Explore other liquid flow controller options, including Coriolis devices.
    • Check out our other flow or pressure control and measurement solutions.
    • Our expert team of applications engineers is available to provide additional information, discuss your application, or answer any questions you may have.

    Contact an applications engineer

    Learn about diverse flow measurement applications in our knowledge base
    Picture of Alicat LC-Series liquid flow controller
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    BrochureManualLC-Series device specs
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