Pulsar Flow Pulse Non invasive Clamp on Flow Sensor


Pulsar Flow Pulse Non-invasive fires ultrasound through the pipe wall at 90 degrees to the flow via a tangentially mounted high-output ceramic. Ultrasound is refracted at angles across the axis of the flow and is then reflected from bubbles, particles, and vortices in all directions and at a wide range of frequencies.

The returned signal is analyzed using Flow Pulse’s Refracted Spread Spectrum Analysis (RSSA) digital signal processing platform to derive flow information. RSSA analyses and integrates the received signals over a wide frequency range, then slices them for real-time analysis and flow rate calculation.

Pulsar Flow Pulse Non-invasive Physical

Sensor body dimensions: 120 x 65 x 65mm (4.75 x 2.6 x 2.6in)
Sensor body weight: Nominal 1.5kg (3.3lbs)
Enclosure material/description: Type 316 stainless steel casting
Cable entry detail: 1 cable entry M20 x 1.5mm gland
Maximum separation: Up to 500m (1640ft)


Enclosure protection: IP68
Max. and min. temperature (electronics): -20°C to +70°C (-4°F to +158°F)


CE approval: Listed in the Certificate of Conformity within the manual

Pulsar Flow Pulse Non-invasive Performance

Accuracy/Repeability: ±5% typical subject to installation and pipe conditions
Resolution 3mm/sec
Velocity range: 0.3 – 4.0m/s standard version or 0.3 – 10m/s high flow version
Response time: Fully adjustable (1 second minimum)
Minimum particle size: >100μ
Minimum particle concentration: >200ppm
Pipe diameter: V1 = 30mm to 350mm (1.2 – 14in) or V2 = 30mm to 1250mm (1.2 – 49.2in)
Pipe wall thickness: Metal or rigid pipe up to 20mm (0.8in) thick
Signal processing: RSSA (Refracted Spread Spectrum Analysis)


Analogue output: 4-20mA into a 1kΩ load (when supply voltage is 22Vdc or greater) with 20μA resolution and user programmable span.
Digital output: Full Duplex RS232 to PC Software, Half Duplex RS485 to PC Software, Half Duplex RS485 with Modbus RTU
Volt-free contacts, number & rating: 1 form “C” (SPDT) rated at 1A at 24Vdc


PC programming: Via RS232 or RS485 using Flow Pulse PC
Programmed data integrity: Via non-volatile RAM


Power supply: 18 – 28Vdc
Power consumption: 2.4W @ 24V typical, 3W @ 24V maximum

Download Datasheet: Flow Pulse® Pulsar Non-invasive Clamp-on Flow Sensor

Reference : pulsar-pm.com

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