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Ultrasonic Water Flowmeter | AquaTrans AT600

Supplier: Pacific Data Systems

The AquaTrans AT600 liquid flow ultrasonic transmitter combines state-of-the-art flow measurement capability with a low-cost transmitter package that can be installed right at the process measurement point, it’s designed specifically for water and wastewater applications in full pipes.

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The AquaTrans AT600 Ultrasonic Water Flowmeter is a complete ultrasonic system for the measurement of:

  • Potable Water
  • Wastewater
  • Sewage
  • Discharge water
  • Treated water
  • Cooling and heating water
  • Irrigation water
  • Other industrial fluids

The all-digital AquaTrans AT600 has no moving parts and requires minimal maintenance. An onboard microprocessor uses patented Correlation Transit-Time™ technology for long- term, drift-free operation. Automatic adjustment to changing fluid properties and dynamically configured operating software simplify programming.

Features and Benefits:

  • Economical non-intrusive flow measurement
  • Extremely simple setup and installation
  • Suitable for a wide range of pipe sizes and materials
  • Suitable for lined pipes
  • Velocity, volumetric, and totalised flow outputs
  • Clamp-on installations
  • Permanent solid couplant for clamp-on applications

Transit-Time Flow Measurement 

In this method, two transducers serve as both ultrasonic signal generators and receivers. They are in acoustic communication with each other, meaning the second transducer can receive ultrasonic signals transmitted by the first transducer and vice versa. 

In operation, each transducer functions as a transmitter, generating a certain number of acoustic pulses, and then as a receiver for an identical number of pulses. The time interval between transmission and reception of the ultrasonic signals is measured in both directions. When the liquid in the pipe is not flowing, the transit-time downstream equals the transit-time upstream. When the liquid is flowing, the transit- time downstream is less than the transit-time upstream. 

The difference between the downstream and upstream transit times is proportional to the velocity of the flowing liquid, and its sign indicates the direction of flow.

Clamp-On Transducers 

Clamp-on transducers offer maximum convenience, flexibility and a low installation cost compared to traditional flow metering technologies. With proper installation, clamp-on transducers provide better than 1% of reading accuracy in most applications.

Specifications:

Fluid Types
Liquids: acoustically conductive fluids, including most clean liquids, and many liquids with small amounts of entrained solids or gas bubbles

Flow Measurement
Patented Correlation Transit-TimeTM model

Pipe Materials
All metals and most plastics. Consult GE for concrete, composite materials, and highly corroded or lined pipes.

Accuracy

  • ±1% of reading in application
  • ±0.5% in field calibration 

Installation assumes a fully developed, symmetrical flow profile (typically 10 diameters upstream and 5 diameters downstream of straight pipe run). Final installation accuracy is a function of multiple factors including fluid, temperature range, pipe centricity, and other.

Calibration
All meters are water calibrated and delivered with a traceable calibration certificate.

Repeatability
±0.2% of reading

Range (Bidirectional)
-40 to 40 ft/s (-12.19 to 12.19 m/s)

Rangability (Overall)
400:1

Measurement Parameters
Velocity, Volumetric, and Totalised Flow

Enclosure
Epoxy-coated aluminum weatherproof Type 4X/IP67

Dimensions
6.6 x 5.0 x 2.4in (168 x 128 x 61mm), Weight: 3.5 lbs/1.5kg

Channels
One channel

Display
Graphic LCD (128 x 64 pixels)

Keypad
Six-button keypad, for full functionality operation

Error Display Indicator
Green or red light

Power Supplies

  • Standard: 85 to 265 VAC, 50/60 Hz
  • Optional: 12 to 28 VDC, ± 5% 

Power Consumption

  • 10 Watts in rush
  • 5 Watts normal operation

Operating Temperature
-4°F to 131°F (–20°C to 55°C)

Storage Temperature
-
40°F to 158°F (–40°C to 70°C)

Outputs (Based on Configuration)

  • 4-20mA (24VDC powered, 600Ω maximum load, 1500 VDC Isolation)
  • Frequency, Pulse, Alarm (Passive output, 100VDC, 1A/1W maximum, 1500 VDC isolation)
  • HART (FSK modulation, Category Flow, Protocol Version 7.5, Device Revision 2, MFG ID 157, Device Type Code 127, Number of device variables 34)
  • Modbus/RS485 (Half-duplex, 1500 VDC Isolation)

Analog outputs Namur NE 43 compliant

Certification
CE, UL, CSA, MCert

Clamp-On Ultrasonic Flow Transducers

Temperature Ranges

  • Standard: -40°F to 302°F (-40°C to 150°C)
  • Optional: -328°F to 752°F (-200°C to 400°C)

See specific transducer for exact temperature range.

Mounting Fixture
Anodised aluminium with stainless steel strapping

Couplant
Solid couplant standard

Rating
Standard: General purpose (IP66 or IP68)

See transducer for exact rating

Additional Options

VitalityTM PC – Interface Software

The AquaTrans AT600 communicates with a PC via our Vitality interface program. Consult the manual for details on sites, logs, and other operations with a PC.

 

 

 

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