Lake Monitors FreeFlow Meter User Manual
Page 2
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:
See graph on page 1
1.
Filtration Requirements:
200 Micron minimum
Materials of Construction
End Ports
PVC
Wedge Element
PVC
Pressure Sensor
Polyetherimide
Electrical Enclosure
Polycarbonate
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2
Page
11
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:
500 mS 10% to 90% (step change
)
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)