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Liquid flow meter LC-Series System-c Instrumentation

Liquid flow meter LC-Series

Flow control


“ Rapid liquid flow control and dispensing Making You Faster : • 20 ms meter response. • 100 ms control response: stills upstream fluctuations. •Instant on: ready in 1 second. •All flow data visible on one screen (flow, pressure, temp). •Controller PID valve tuning for best speed and stability. ”
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Rapid liquid flow control and dispensing

Control liquid flow rates up to 10 lpm, or as low as 0.01 ccm, with the fastest control response available in a liquid flow controller. The optional Precision Dispensing Package adds a flow totalizer and control firmware for easy batch processing.

  • Versatile. Control liquid flow rates with NIST-traceable accuracy, or control pressure while monitoring flow. Calibrations are available for water, methanol, iso-propanol, ethanol, ammonia, dimethylether, iso-pentane, thiophene, iso-octane and heptane.
  • Easy to Use. Monitor live readings of process flow, pressure and temperature, or set up new dispensing batches–all from the front display of the liquid controller.
  • Connected. Easy integration into your digital industrial network with Ethernet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP) or serial communications options.

Valve Options 

  • 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

Corrosive Liquids (LCS series)

Instruments in the standard LC series are also available with an optional “S” configuration (LCS) for use with some corrosive liquids. In the basic configuration, we upgrade the elastomers to FFKM. Some corrosive liquids require 316L stainless steel, and in this case we can upgrade the valve (type PCA) and flow body to 316L for full-scale flow ranges of 500 ccm or less.


Build Options

  • Communications protocols (analog, RS-232, RS-485, DeviceNet, EtherCAT, Ethernet/IP, Modbus RTU or TCP/IP, PROFIBUS)
  • Displays (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)

Performance Options

  • Flow totalizer
  • Integrated potentiometer control
  • Custom calibration


  • Available ranges: max 0-10 lpm, min 0-0.5 ccm (see Part Numbers for stock ranges)
  • Turndown ratio: 50:1
  • Calibration accuracy, NIST-traceable: ± 2% of the full-scale range
  • Repeatability: ± 2% of the full-scale range
  • Typical control response time constant: 50-100 ms (as low as 25 ms with PID tuning)
  • No warm-up time required

Operating Conditions

  • Default calibration: water
  • Alternate calibrations (must be requested 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
  • Max internal pressure (static): 100 psig (115 psia)
  • Proof pressure: 200 psig (215 psia)

In the box

  • Liquid flow controller (power supply sold separately)
  • NIST-traceable calibration certificate
  • Alicat operating manual

Accessories (sold separately)

  • Process port fittings and filters
  • Power supplies
  • Communications cables and conversion cables
  • BB3 and BB9 multi-drop breakout boxes
  • Flow Vision software

0.5 CCM to 5 LPM Accuracy : +/- 2% full scale Repeatability : +/- 2% full scale Pressure up to 7 barG Temperature : -10°C to +60°C Simultaneously displays volumetric flow, pressure and temperature. Turndown ratio : 50:1 Response time: 100 ms (control); 20 ms measurement. Outputs: 0-5VDC, 0-10VDC, 4-20mA, RS232, RS485, ModBus, Profibus, ... Consumption: 250mA. (750mA LCR model, 2A LCRH model)
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Microfluidics Liquid Product Dispensing Laboratory Chemistry

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