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The Cox FC30 is a multi-functional flow computer, providing users with linearized and temperature compensated flow rates and totals. Several features enhance flow meter accuracy and usability, in both gas and liquid applications.

The FC30 is offered with 40 point linearization, Strouhal-Roshko compensation, batching routines and inferred mass measurement capability. Both pressure and temperature sensor inputs also come standard for display as well as compensation calculations. This versatile flow computer provides users with an easy to read display, programmable front panel and an intuitive firmware menu structure.

Soft key assignments are user defined for the various inputs and outputs to meet application requirements. When ordered with a flow meter, the FC30 is factory programmed to customer specifications.
Features
  • EIA-232/485 serial communication
  • Multiple isolated outputs
  • 10 selectable fluid tables
  • Precision temperature compensation methods
  • Service/Test mode
  • Batching

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FC30
FC30
  • Display Type - Liquid Crystal Display (LCD)
  • Power Requirements - 110 Vac
  • Relay - Two Single Pull, Double Throw Relays
  • Mounting - Panel Mount
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Specifications

Accuracy

  • Auxillary/Compensation Input: ± 0.02 % of Full Scale at 20° C (68° F)
  • Isolated Analog Output: 0.05 % of Full Scale at 20° C (68° F)

Applications

  • Gases
  • Liquid

Approvals & Certifications

  • CE
  • UL (C)

Circuit Protection

  • Over Voltage Protection (50 Vdc)

Communication

  • Serial: EIA-232
  • Serial: EIA-485

Current

  • Auxillary/Compensation Input: 0-20 mA
  • Auxillary/Compensation Input: 4-20 mA

Display

  • Character Size: 0.2” (5.08 mm)
  • Typical: 2 x 20 Character Display
  • Typical: Backlit LCD or VFD

Environmental Protection

  • IP66
  • NEMA 4

Frequency

  • Flow Input, Max.

Humidity

  • 0 to 95 % Relative Humidity, Non-Condensing

Input

  • Auxillary/Compensation Input: 0-10 Vdc
  • Auxillary/Compensation Input: 0-5 Vdc
  • Auxillary/Compensation Input: 1-5 Vdc
  • Control Input (Logic 0): 0-0.8 Vdc
  • Control Input (Logic 1): 4-30 Vdc
  • Flow Input (High Level Trigger): Logic Off 0-1 Vdc
  • Flow Input (High Level Trigger): Logic on 3-30 Vdc
  • Flow Input (Low Level Trigger [Mag Pickoff]): Sensitivity 10 mV
  • Flow Input (Low Level Trigger [Mag Pickoff]): Sensitivity 100 mV

Input Impedance

  • Control Input: 100 kiloohms
  • Flow Input: 10 kiloohms Nominal

Load Resistance

  • Isolated Analog Output: 1,000 ohms, Max.

Mounting

  • Panel Mount

Operating Temperature

  • 0° to 50° C (32° to 122° F)

Operation

  • Auxillary/Compensation Input: Ratiometric

Output

  • Isolated Analog Output: 0-20 mA
  • Isolated Analog Output: 4-20 mA
  • Isolated Pulse Output (Saturation Voltage): 1 Vdc
  • Isolated Pulse Output: 0.1 mA - Max.
  • Isolated Pulse Output: 25 mA - Max.
  • Isolated Pulse Output: 30 Vdc, Max.

Output Format

  • Isolated Pulse Output (Form): Open Collector

Power Requirement

  • 10-14 Vdc at 300 mA - Max.
  • 110 Vac (85-127 V RMS at 50/60 Hz)
  • 14-28 Vdc at 300 mA - Max.
  • 220 Vac (170-276 V RMS at 50/60 Hz)

Pulse Range

  • Isolated Pulse Output: 10 milliseconds
  • Isolated Pulse Output: 100 milliseconds

Resistance

  • Flow Input (Pull-down Resistance): 10 kiloohms to Common
  • Flow Input (Pull-Up Resistance): 10 kiloohms to 5 Vdc

Resolution

  • Auxillary/Compensation Input (Temperature Resolution): 0.01° C
  • Auxillary/Compensation Input: 16-bit
  • Isolated Analog Output: 12-bit

Reverse Polarity Protection

  • Auxillary/Compensation Input, Isolated Pulse Output (Shunt Diode) - Fault Protection: Reverse Polarity

RTD Type

  • Auxillary/Compensation Input: 100 ohms, 3-Wire DIN RTD

Sensor, Probe Type

  • RTD

Storage Temperature

  • -40° to 85° C (-40° to 185° F)

Switch Type

  • SPDT

Thermal Drift

  • Isolated Analog Output (Temperature Drift): < 200 ppm/°C

Voltage

  • Excitation Voltage: 12 Vdc at 100 mA
  • Excitation Voltage: 24 Vdc at 100 mA
  • Excitation Voltage: 5 Vdc at 100 mA

Documentation

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