FlowSonic® LF
The FlowSonic® LF ultrasonic fuel flow meter from Sentronics represents a breakthrough in fuel flow measurement technology for automotive engines of every type. The FlowSonic® LF has been designed for the ultra low-volume fuel flow conditions found in today’s high-efficiency road car engines, making it an ideal tool for R&D as well as emissions testing to the new RDE and WLTP standards.
+/- 0-4000 ml/min
Operating Flow Range
Variable
Measurement Rate
Compact
Lightweight for installation
-20°C to +120°C
Fluid temperature range
Reliability
No moving parts
500:1
Turndown Ratio
20 barg (2000 kPag)
Maximum operating pressure
Robust
Vibration-tolerant
A breakthrough in fuel flow testing technology for the OEM automotive sector, the FlowSonic® LF offers unmatched precision and convenience in measuring the full range of flow rates (including ultra-low and transitory reverse flows) found in today’s high-efficiency road car engines.
FlowSonic® LF Supports Pioneering Engine Research at Loughborough University
Compact Engine Bay Installation
The FlowSonic® LF ultrasonic fuel flow meter is extremely compact in size and lightweight. The small space envelope of the device offers easy installation in vehicles without the hassle of having to reroute fuel, which ensures that real world conditions are measured.
Ultra Fast Measurement Rates For Highly Dynamic Flows
The FlowSonic® LF records fuel flow in excess of 1000 times a second to ensure capturing the full flow data. In real world driving test conditions To ensure that both directions of fuel travel is measured, Sentronics’ ultra-fast measurement technology captures bi-directional flow to determine true fuel consumption.
Testing Application Portability
Featuring easy bench-to-vehicle portability, the FlowSonic® LF’s portable design allows for seamless transition between bench testing and in-vehicle applications, making it ideally suited for both WLTP testing and RDE emissions testing. This versatility ensures accurate measurement of vehicle performance in both controlled laboratory settings and real-world driving conditions.
Product Specification
Measurement Performance
Repeatability
± 0.15% of reading
Uncertainty*
± 0.5% of reading
Turndown ratio
500:1
Operating flow range
± 0-4000 ml/min
Measurement flow range
8-4000 ml/min
Measurement rate
2.2 kHz
Maximum operating pressure
20 barg (2000 kPag)
Pressure drop at maximum flow
< 20 kPa (4000 ml/min for pump petrol @ 20°C)
Fluid temperature range
-20°C to +120°C
Ambient temperature range
-40°C to +120°C
Temperature Measurement
2 x 1000 Ohm RTD (1/3 DIN standard)
* Calculated according to ISO/TR using root-sum square method yielding 95% confidence
Mechanical
Dry weight
330 g
Fluid capacity
15 ml
Wetted materials
FPM, anodised aluminium alloy, stainless steel
Fuel line connection
-6AN fittings 9/16-inch UNF thread
Deutsch sensor connector
ASDD006-09PC-HE
Deutsch mating connector
ASDD606-09SC-HE
Environmental
Storage temperature
-40ºC to 85ºC
External pressure rating
300 kPa
Environmental protection
IP69K (when mated to connector)
Electrical Supply
Voltage
8V to 30V DC
Current
< 95 mA @ +12V DC
Voltage protection
Over-voltage 45V DC, reverse polarity -45V DC
CAN Communications
Design standard
ISO 11898-2 (high-speed applications)
Message format
2.0A (11-bit identi er)
Baud rate
1 Mbit/sec
CAN termination resistor
No
TTL Pulse Output
Voltage output range
0-5V
Pulses per cc
3000 (fully congurable)
Duty cycle
50%
Output resistance
1.0 kOhm
Analog Output
Voltage output range
0-10V DC
Resolution
16-bit
Output resistance
47.0 Ohm
Load resistance
> 1.0 kOhm
Configuration Interface
Configuration Interface
3.3V serial interface
Fuel Compatibility
Fuel Compatibility
Petrol, diesel, bio-diesel, ethanol, methanol please contact us about other fluids
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