Clamp-On Ultrasonic Flow Transducers

Temperature Ranges

• Standard: -40 to 302°F (-40 to 150°C)

• Optional: -328 to 752°F (-200 to 400°C)

See specific transducer for exact temperature range.

Mounting Fixture

Anodized aluminum with stainless steel strapping


Standard: Solid couplant

Optional: Liquid couplant


Standard: General purpose (IP66 or IP68)

Note: See specific transducer model for exact rating

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 specified 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.

Panametrics AquaTrans AT600 Ultrasonic Flow Meter

Starting at$3500

Request For Quote:

Liquid Flow Ultrasonic Transmitter

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. 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 totalized flow outputs
  • Clamp-on Installations
  • Permanent solid couplant for clamp-on applications.


The AquaTrans AT600 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


Overall Operation and Performance

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 mode

Pipe Sizes

0.5 to 300 in. (15 to 7600 mm)

Pipe Materials

All metals and most plastics. Consult FGM Solutions for concrete, composite materials, and highly corroded or lined pipes.

Accuracy •

±1% of reading in application, ≥2 in. (50 mm) pipe and >1 ft/s (0.3 m/s) velocity • ±2% of reading in application, <2 in. (50 mm) pipe and >1 ft/s (0.3 m/s) velocity • ±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 others.


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


±0.2% of reading

Range (Bidirectional)

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

Rangability (Overall)


Measurement Parameters

Velocity, Volumetric, and Totalized Flow

Electronics Enclosure 
Epoxy-coated aluminum weatherproof Type 4X/IP67

6.6 x 5.0 x 2.4 in. (168 x 128 x 61 mm) Weight: 3.5 lb/1.5 kg 

One channel


Graphic LCD (128 x 64 pixels)


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 to 158°F (–40 to 70°C)

Outputs (Based on Configuration)

• 4-20 mA (24VDC powered, 600Ω maximum load, 1500 VDC isolation)

• Frequency, Pulse, Alarm (Passive output, 100 VDC, 1 A/1 W 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) Note: Analog outputs are Namur NE43 compliant. Certification CE, UL, CSA, (MCert approval pending)

Note: Analog Outputs are Namur NE43 Complaint.


CE, UL, CSA (MCert approval pending)