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2150EX Area Velocity Flow Module
Section 1 Introduction
1-10
Table 1-8 Specifications – AV2150EX Area Velocity Sensor
(Zones 0, 1, and 2)
Materials
Sensor Epoxy, chlorinated polyvinyl chloride (CPVC), stainless steel
Cable Polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), stainless steel
Size (H×W×D) 1.9 × 3.3 × 15.2 cm 0.75 × 1.31 × 6.00 in.
Cable Length 10.0 m 32.8 ft.
Cable Diameter 0.9 cm 0.37 in.
Weight (including cable) 1.02 kg 2.24 lbs
Level Measurement
Method Submerged pressure transducer mounted in the flow stream
Transducer Type Differential linear integrated circuit pressure transducer
Range
1
0.010 to 3.05 m 0.033 to 10 ft.
Maximum Allowable Level 10.5 m 34 ft.
Accuracy
2
±0.003 m ±0.010 ft
Long Term Stability ±0.007 m/yr ±0.023 ft/yr
Operating Temperature
Range
-10° to 60°C -14° to 140°F
Compensated
Temperature Range
0° to 50°C 32° to 122°F
Velocity Measurement
Method Doppler Ultrasonic
Frequency 500 kHz
Transmission Angle 20° from horizontal
Typical Minimum Depth
for Velocity Measurement
25 mm 0.08 ft.
Range -1.5 to +6.1 m/s -5 to +20 ft./s
Accuracy
3
Velocity Error
-1.5 to +1.5 m/s (-5 to +5 ft./s) ±0.03 m/s (±0.1 ft./s)
1.5 to 6.1 m/s (5 to 20 ft./s) ±2% of reading
Operating Temperature
Range
-40° to 60°C -40° to 140°F
Temperature Measurement
Accuracy ± 2°C
NOTES:
1. Actual vertical distance between the area velocity sensor and the liquid surface
2. Maximum non-linearity , hysteresis, and temperature error from actual liquid level
3. In water with a uniform velocity profile and a speed of sound of 1480 m/s (4850 ft./s)
4. The serial tag of the AV2150EX sensor contains important X marking, indicating special safety conditions that must
be observed. See Important Information Regarding "X" Marking on page 2-26 for more information.