Ultrasonic transit-time flow meter MTTDC

volumefor waterfor wastewater

Product overview
The MTTDC is a one- or two-channel ultrasonic transit-time flow meter for measuring volumetric flow in pipes and ducts. It comprises a digital signal processing (DSP) unit and up to four speed transducers. The meter measures flow velocity by comparing upstream-to-downstream and downstream-to-upstream ultrasonic pulse transit times at an angle α to the flow. Clamp-On transducers mount externally without creating pipe restriction or pressure drop. The DSP unit uses cross-correlation and FFT processing to enable reliable operation in demanding fluids, including those with high suspended solids or air content. The MTTDC can deliver two independent measurements with a combined maximum of two chord planes.

Application / Measurement
Measurement: Flow / Flow rate; Electronics. Typical uses: process water, wastewater, industrial fluids, HVAC and process monitoring.

Key features

• Clamp-On or Insertion Transducers
• Patented Anti-Round Technology
• Speed measuring range: 0.02 ÷ 12 m/s
• Operates with liquids containing up to 30% air bubbles or in black water
• Display with oscilloscope function; Digital Signal Processing (DSP)
• Two 4÷20 mA analogue outputs (for negative or positive ranges)
• Two relays for flow totalization
• Two analogue inputs for pressure, level, etc.
• Self-diagnostic function
• Remote calibrator for programming
• Large colour graphic LCD (320×240 pixels)
• Keypad lock function
• Software for installation and data download
• Datalogger up to 1,000,000 records; Internal memory: 32 MB; External memory: 8 GB

Detection / Technology (table)
Measurement: Flow / Flow rate; Electronics
Detection: Flow / flow rate
Technology: Transit times

Compatible electronics

• LED96 — Digital measurement indicators (recommended compatible electronics)