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Model FC175


DESCRIPTION

Flow Systems introduces the lightweight and mobile Flow Computer model FC175.  The FC175 offers a greater economy than its FC200 and FC500 counterparts, and is designed for applications requiring fewer features and a lower price.  The FC175 interfaces with single, manually interchangeable, Sonic Nozzles and Sub-Sonic Venturis.  Multiple levels of accuracy are available with highly repeatable results. 



Flow Computer - FC175-CFV
Shown with interchangeable Sonic Nozzle Meter Run and 
Customer-Supplied Laptop Computer.

FC175 Flow Computer
Dimensions:  6.5 in. W x 2.1 in. H x 6.5in. D

FEATURES


»  MS Windows™-based Setup Software and Interface allow Easy Configuration and Monitoring Capabilities.

»  USB Communication.

»  PC Connection Required. (No Stand-Alone Operation.)

»  Optional External Pressure Sensors or simply connect an existing Absolute / Differential 2-wire, Loop-Powered, 4-20ma output transmitters.

»  Includes 2242 k Ohm Thermister Probe for temperature measurement.

»  Custom Software and additional, user-scaleable, I/O Channels available.  (3) Thermister (1-2) scaleable 4-20 MA DC.

»  Calibration Software to Maintain Internal Instruments.

»  Test Set-up Screen.

»  Flowmeter Configuration.

»  Optional Internet Support and Diagnostics.

»  Data Logging Capabilities via USB Interface.

»  Best Economy.

 

SOLUTION

This unique solution (hardware and software) combines Instrumentation, Data Acquisition and Control, Computation, Monitoring and Communication with a local, customer-supplied personal computer or laptop.   Accurate Measurement via User-Friendly Controller and High System Availability are key features of this test instrument.

The data acquisition, control subsystems and all instrumentation are standard, readily available Commercial Off-The-Shelf (COTS) items. This ensures that servicing or replacement of any item can be achieved in a timely manner, providing high-availability for the test system.

The FC175 works with single Sonic Nozzles and Sub-Sonic Venturis. For those users requiring increased accuracy or advanced functionality, we recommend our FC500 model Flow Computer.  

 

 


Configuration / Monitoring Software:

The FC175 software was developed using National Instruments™ LabVIEW™ and uses a USB connection to communicate with the FC175. This package gives the user the following functionality:

 


Test Set-up Screen:

Configures the FC175 for meter type, fluid, and units.

Real Gas Properties for most Gasses.



Flowmeter Configuration:

Calculations for Sonic Nozzles are in accordance with ASME MFC-7M / ISO 9300. 
Computations for Sub-Sonic Venturis meet the requirements of ASME MFC-3M / ISO 5167.

Iterative Solution for Discharge Coefficient (Cd) based on Actual Calibration Data or Theoretical Models.

 

 

Data Monitoring and Logging:

Data may be logged automatically at a user-defined interval.

Flow Totalizing / Batching:  Allows the User to Start, Stop, Clear, and Log Batch Data.


 

Calibration Assistant for Maintenance of Internal Instrumentation:


Optional Internet Support and Diagnostics:

Allows FLOW SYSTEMS to observe and / or control a system remotely for training, optimization, or troubleshooting purposes. 
This service requires a temporary, high-speed data line.

 

SPECIFICATIONS:

 

Model Code Meter Type Supported
FC175-CFV Sonic Nozzle
FC175-VEN Venturi

The above come with a Calibrated Thermister Probe for Temperature Measurement.

Optional Absolute Pressure Transmitters for Sonic Nozzle Application:

Option Code Description
-01 Level 1 with P2 Gauge
-01A Level 1 with P2 Transmitter
-02 Level 2 with P2 Transmitter
-03 Level 3 with P2 Transmitter
-04 Level 4 with P2 Transmitter
-05 Level 5 with P2 Transmitter

Optional Absolute Pressure and Differential Pressure Transmitters 
for Sub Sonic Venturi Application:

Option Code Description
-05 Level 1 Transmitters (2)
-06 Level 2 Transmitters (2)

Humidity:

Option Code Description
-07 Humidity Sensor (Atmospheric Air)
-08 Dew Point Sensor (Compressed Air)

Connections - Bench Top

Power Requirements: Wall Power Supply Included
Communication: USB

Accuracy

The FC175 uses a 15-bit data acquisition system to measure all analog inputs. The following tables state percent of reading and mass flow accuracy for both available meter types and corresponding instrumentation configurations.

Sonic Nozzles

Options Configuration Mass Flow Accuracy Comments
-01,
-01A 		Level 1 +/0.95% of Reading Assumes: +/-0.50% CEESI calibration, 4:1 pressure range (+/-0.2% full scale) and 40° to 100°F gas temperature. (+/-0.2%).
-02 Level 2 +/-0.65% of Reading Assumes: +/-0.50% CEESI calibration, 4:1 pressure range (+/-0.1% full scale) and 40° to 100°F gas temperature. (+/-0.2%).
-03 Level 3 +/-0.54% of Reading Assumes: +/-0.50% CEESI calibration, 4:1 pressure range (+/-0.05% full scale) and 40° to 100°F gas temperature. (+/-0.2%).
-04 Level 4 +/-0.27% of Reading Assumes: +/-0.25% CEESI calibration, 4:1 pressure range (+/-0.02% full scale) and 40° to 100°F gas temperature. (+/-0.2%).
 

An optional humidity sensor is available for moist air applications.

Sub-Sonic Venturis

Options Configuration Mass Flow Accuracy

Comments
-05 Level 1 +/-0.61% of Reading Assumes: Uncalibrated Venturi, 4:1 pressure range (+/-0.05% full scale), 10:1 Dp range (+/-0.02% of full scale) and 40° to 100°F gas temperature.  (+/-0.2%).
-06 Level 2 +/-0.43% of Reading Assumes: +/-0.5% CEESI calibration, 4:1 pressure range (+/-0.02% full scale), 10:1 Dp range (+/-0.01% of full scale) and 40° to 100°F gas temperature. (+/-0.2%).
 

An optional humidity sensor is available for moist air applications.

 

 

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