D118 Ultransonic Flow Meter

Ultrasonic Flowmeter D118

· Achieve high accuracy at low and high flows
· Simply clamp-on outside of pipe for easy set up
· Save time with no pipe cutting or process shutdown

Overview

Ultrasonic flowmeter D118 is a high-performance general purpose clamp-on flow meter incorporating the latest developments in universal transit-time digital signal processing to offer excellent accuracy and repeatability for a wide variety of liquids. The flow meter measures the time it takes an ultrasonic signal to travel a known distance with the flow stream and another signal travelling against the flow stream, determining the velocity of the fluid being measured.
Ultrasonic flowmeter D118 clamp-on meter can also be ordered with insertion transducers to eliminate problems with pipe wall thickness, liners, wall deposits, and where difficult piping configurations present signal strength issues.

Common applications include: 

· Cooling and heating fluid measurements
· Water and wastewater measurements
· Leak detection in piping systems
· Monitoring and controlling of HVAC systems
· Fuel and oil consumption measurements
· Contactless product recognition
· Interface detection
· Offshore applications
· Automated process control

Product Benefits

· Designed for liquid flow metering applications
· Tolerant of liquids with small amounts of air bubbles or suspended solids
· Clamp-on version is standard, insertion transducers available
· No moving parts to clog or fatigue like turbine meters
· Transducers clamped to outside of pipe
· Permanent or temporary installations
· Immune to the process compatibility concerns
· Install meter during plant operations
· No process shut-downs, no leakage risks
· Operational safety and robustness
· Ideal for large line sizes or exotic materials
· Low maintenance, no moving parts, robust construction
· High zero stability, nearly drift free
· Mounting kit included to lock transducer into place
· Modular electronics enabling field upgrades
· SD card data logging capability
· Large display with push buttons, user-friendly menu

Specifications

· Accuracy: +/- 0.5% of reading from 0.03 ft/s to 40 ft/s ( 0.01 m/s to 12 m/s)
· Repeatability +/- 0.15% of reading
· Wide turndown ratio
· Bi-directional flow range of 0.03 to 40 ft/s (0.01 to 12 m/s)
· Pipe sizes from 2 to 236 inches (50 to 6000 mm)
· Process pipe-wall temperature:  -40°F to 176°F (-40°C to 80°C)
· Insertion transducers available: 1.5 inch (38.1 mm)
· 1GB SD card high memory data logger
· Temperature:
  Ambient: -40°F to 140°F (-40°C to 60°C)
  Operating: -40°F to 176°F (-40°C to 80°C)
· Power supply options:
  90 to 250 VAC, 48 to 63 Hz
  10 to 36 VDC at 1A


· Output signals:
  4 to 20 mA   
  Pulse (configurable)
  Relay (configurable)
· Digital communications: RS-232, RS-485, Modbus RTU
· Materials:
  Enclosure NEMA 4X (IP65), die-cast aluminum
  Transducers IP67 (Encapsulated)
· Standard cable length: 30 ft (9 m), Maximum cable length: 300 ft (90 m)