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6712FR Refrigerated Sampler
Section 1 Introduction
1-11
Module Reading Conversions: • Level and 4–20 mA readings converted to flow rate units:
gallons per second gallons per minute
million gallons per day cubic feet per second
cubic meters per second cubic meters per hour
cubic meters per day liters per second
• Velocity units:
feet per second meters per second
• Totalized flow units:
gallons million gallons
cubic feet cubic meters
liters
• Devices supported in flow conversion:
Weirs: V-notch; 22.5, 30, 45, 60, 90, and 120 degrees
Rectangular; with and without end contractions
Cipoletti.
Flumes:Parshall; 1", 2", 3", 6", 9", 1.5', 2', 3', 4', 5', 6', 8', 10', 12'
Palmer-Bowlus; 4", 6", 8", 12", 15", 18", 21", 24", 27", 30", 48"
Trapezoidal; LG 60 V, 2" 45 WSC, 12" 45 SRCRC
H; 0.5', 0.75', 1', 1.5', 2', 2.5', 3', 4.5'
Equation: Q = a x H
b+c
x H
d
where:
Q = flow
H = head
a,b,c, and d = entered values
Manning Formula: Round, U-channel, Rectangular, Trapezoidal
Area Velocity: Round, U-channel, Rectangular, Trapezoidal
Data Points: 50 level-flow rate points, 50 level-area points
Refrigerator Temperature Sen-
sor
Optional sensor and 5 ft (1.55 m) cable to record temperature readings.
Intended for use with fiberglass refrigerated (FR) samplers.
Range: -40.0 °C to 100 °C
Accuracy specification: ±0.3 °C over a range of 0.0 to 10.0 °C.
Reading data is 2 bytes, with a storage resolution of 0.1 °C.
6712FR Refrigerated Sampler: Physical Specifications
Dimensions:
Height: Top cover closed: 49.25 in (125 cm)
Top cover open: 59.25 in (150.5 cm)
Width: 26 in (66 cm)
Depth: 26 in (66 cm)
Bottle Configurations:
• 24 wedge polypropylene bottles, 1,000 ml
• 24 round glass bottles, 350 ml
• 12 wedge polyethylene bottles, 2.5 liters
• 8 round polyethylene bottles, 2.0 liters
• 8 round glass bottles, 1.8 liters
• 2 rectangular polyethylene bottles, 7.5 liters (2 gal)
• 2 round glass bottles, 9.4 liters (2.5 gal)
• 1 round polyethylene bottle, 9.4 liters (2.5 gal)
• 1 round glass bottle, 9.4 liters (2.5 gal)
• 1 round polyethylene bottle, 15 liters (4 gal)
• 1 round polyethylene bottle, 20.5 liters (5.5 gal)
• 1 round glass bottle, 18.5 liters (5.0 gal)
Table 1-3 Technical Specifications for the 6712FR Refrigerated Sampler (Continued)