Cole-Parmer L Water flow meter Precision water flow meter, LC Water flow controller, LCR Water flow controller Precision water flow controller, LB Portable Water Meter Operating manual

Below you will find brief information for L Water flow meter, LC Water flow controller, LCR Water flow controller. This document covers the series L Water flow meter, LC Water flow controller and LCR Water flow controller. This manual covers installation, getting started, operation and troubleshooting for various models of flow meters and controllers. The manual also covers using RS-232 communications to interact with the unit.

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L Water flow meter, LC Water flow controller, LCR Water flow controller Manual | Manualzz

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Key features

  • RS-232 communication
  • Analog Input Signal
  • PID tuning
  • Purge ports
  • On/Off auto-tare
  • Temperature measurement
  • Flow rate measurement
  • LCD display
  • Pressure measurement

Frequently asked questions

Only pure, clean DI or distilled water can be used in the device. Do not use tap water or water with any biological components, minerals, or oils. These impurities will affect the viscosity of the water and can cause corrosion and damage.

The maximum operating line pressure is 100 psig (689 kPa). If the line pressure is higher than this, use a pressure regulator upstream from the flow controller to reduce the pressure.

Loosen 1 to 2 turns the bleed screw on the front of the device. Then tap the flow body to encourage bubbles to exit the port. Repeat with the other bleed port.

The set point can be changed using the display interface if you've selected Front Panel as your input. You can also change it remotely via RS-232 or analog input signals. The method of changing the set point is detailed in the 'Control Setup' section of this manual.

The PD algorithm is a basic PID algorithm that uses proportional and derivative terms to control the process. The PD2I algorithm is a more advanced PID algorithm that also includes an integral term, which helps to improve the controller's stability and reduce steady-state errors.
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