Ultrasonic Transmit Time Flow Meter

Description

Type PTTF clamp-on integral mount flow meter measures most clean liquids containing moderate amounts of suspended solids or aeration. Non-invasive meter simply clamps on the outside of pipes (1/2 to 2 in.). Two flow rate outputs are provided: 4-20 ma analog and simulated turbine or TTL-pulse frequency output for direct interface with data collection systems. Preso Meters, Racine, WI

Specs

• Input Voltage - 11-30 VDC @ 0.25A • Accuracy - ±1% of rate above 1 FPS [0.3 MPS] • Environment - Indoor use • Ambient Temperature - General Purpose: 0 to +185 °F (-20 to +85 °C) • Hazardous Area: 0 to +105 °F (-20 to +40 °C) • Altitude - Up to 2000 meters • Humidity - -20 to 31 ºC; 80% max; decreasing linearly to • 50% at 40 ºC • Transient Overvoltages - According to installation category 1, in accor- • dance with IEC 664 • Pollution Degree - 2 in accordance with IEC 664 • Enclosure Material - ABS/Polycarbonate • Approvals - General Requirements: ANSI/ISA 82.02.01; • Hazardous Location: ANSI/ISA 12.12.01 • Class I Div 2, Groups C & D • 4-20 mA Output - 12-bit, sourcing, DC ground referenced • Pulse Output - Turbine Frequency Output/Pulse Output— • Switch Selectable, non-ground referenced AC/ • Ground referenced square wave, 0-1,000 Hz, • 100mVpp minimum/5VDC
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