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FreeFlow™ Sensor

FreeFlow

ACCURATE & ECONOMIC FLOW SENSOR
Minimally invasive, low cost segmented wedge flow sensor. Used to monitor and control process water.

NO MOVING PARTS
The segmented wedge element provides a simple and reliable restriction for sensing flow as related to pressure differential

UNRESTRICTED MOUNTING
Allows the designer to install the meter in any orientation – horizontal, vertical or inverted.

COMPACT AND RUGGED DESIGN
Measures less than 10" long and 3-1/2" wide, with a flanged mounting base for simple installation.

MULTIPLE FLOW RANGES AVAILABLE
The FreeFlow™ Sensor is offered with several ranges of calibration to accommodate the requirements typical to process water applications.

MULTIPLE PORT SIZES
Standard selection of NPT ports reduces the amount of adapters required for installation.

LOW-COST PRECISION
Measuring accuracy of ±2% of range and repeatability of ±1/2%.


Engineering Specification

The FreeFlow™ Sensor Shall:

  • Use the segmented wedge differential producer to measure flow rate as related to pressure.
  • Not require inlet or outlet straight plumbing, or require vertical pipe mounting.
  • Have a measuring accuracy of ±2% of full scale with ±1/2% repeatability.
  • Be Lake Monitors No. FF– _ _ _– _ _ _– _ _
Materials of Construction

End Ports

PVC

Wedge Element

PVC

Pressure Sensor

Polyetherimide

Electrical Enclosure

Polyetherimide

Indicator

Polysulphone

 

Performance

Measuring accuracy:

±2% of full-scale

Repeatability:

±1/2% of full-scale

Full Scale Flow Measuring Range:

5-15 GPM (19-57 LPM)

Turn Down Ratio (All Ranges):

8:1

Maximum operating pressure:

125 PSIG (8.6 bar)

Maximum operating temperature:

170°F (76°C)

Standard Calibration Media:

Tap Water @ 70° F

 

Electronic Specifications

Electronic output:

0-5 VDC (Standard) - 0-10 VDC (Optional)

Power Requirements:

12-35 VDC

Maximum Current Consumption:

< 50mADC

Minimum load resistance:

1000 Ohms

Maximum transmission distance:

< 200 feet

Resolution:

Infinite

Response Time:

< 500 mS to 90% (step change)

Protection:

Short circuit, transient and reverse polarity


Mechanical Size Code
FreeFlow CAD

DIM

3/8" Female NPTF

1/2" Female NPTF

3/4" Female NPTF

A

6-7/8" (175mm)

6-7/8" (175mm)

7-1/2" (191mm)

B

2-7/32" (57mm)

2-7/32" (57mm)

2-7/32" (57mm)

C

1-3/32" (28mm)

1-3/32" (28mm)

1-5/16" (34mm)

B

5-1/4" (134mm)

5-1/4" (134mm)

5-1/4" (134mm)

 

©2011 Lake Monitors

8809 Industrial Drive, Franksville, WI  53126
Phone: 262-884-9800 | Toll Free: 800-850-6110
Fax: 262-884-9810

info@lakemonitors.com