Lake Monitors FreeFlow Meter User Manual

Installation, Operation &

Maintenance Manual

© 2007 AW-Lake Company. All rights reserved. FFM-907

Rev. 1.09

www.lakemonitors.com

MONITORS

www.lakemonitors.com

Lake Monitors 8809 Industrial Drive, Franksville, WI 53126

P: [phone] [phone] F: [phone]

MONITORS

Performance

Measuring Accuracy: ±2% of full-scale

Repeatability: ±.5% of 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)

Pressure Differential:

Filtration Requirements: 200 Micron minimum

Materials of Construction

End Ports PVC

Wedge Element PVC

Pressure Sensor Polyetherimide

Electrical Enclosure Polycarbonate

Electronic Specifications

Electronic Output:

0-5/0-10 Vdc (standard), 4-20 mA (optional)

Power Requirements: 12-35 Vdc

Flow Measuring Range: 5-15 GPM (19-57 LPM)

Maximum Current Consumption: 25 mAdc

Maximum Load Resistance: 1000

Maximum Transmission Distance: 200 feet

Resolution: 12-bit

Response Time:

Protection:

Short circuit, transient & reverse polarity

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" (28 mm) 1-5/16" (34 mm)
D 5-1/4" (134mm) 5-1/4" (134mm) 5-1/4" (134mm)

See graph on page 11.

500 mS 10% to 90% (step change)

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