FlowSonic® HF
The FlowSonic® HF ultrasonic sensor from Sentronics™ represents a breakthrough in fluid flow measurement technology for automotive engines of every type. The FlowSonic® HF has been designed for the high-volume fuel, oil, and coolant flow conditions found in heavy-duty commercial and industrial vehicle powerplants. Its precision makes the HF an ideal tool for efficiency-focused R&D as well as emissions testing.
± 0-500 l/min
Operating Flow Range
2.2 kHz
Measurement Rate
Compact
Lightweight for installation
25:1
Turndown ratio
Reliability
No moving parts
± 0.15% of reading
Repeatability
CAN, TTL pulse, analog
Output formats
-40°C to +120°C
Temperature range
Designed to measure vehicle coolant flow for optimal engine performance, the FlowSonic® HF delivers industry-leading accuracy in real-time.

High flow coolant measurement
Cooling and lubrication systems play a major role in engine efficiency, and our FlowSonic® HF (high-flow) meter is designed to measure high-volume coolant and oil flows in all vehicle types, along with fuel consumption in heavy-duty vehicle commercial and industrial vehicle powerplants.

Easy installation on test bench or vehicle
The FlowSonic® HF offers significant advantages in accuracy, convenience, robustness and correlation of laboratory with road test results over conventional measurement equipment. As is synonymous with the Sentronics range of ulltrasonic products, the HF is compact for convenient installation and placement.

Inline flow path for high volumes
Featuring an inline flow path, the FlowSonic® HF is ideal for handling volumes of coolant flow up to 500 litres per minute.
Product Specification
Measurement Performance
Repeatability
± 0.15% of reading
Uncertainty*
± 0.5% of reading
Turndown ratio
25:1
Operating flow range
± 0-500 l/min
Measurement flow range
20-500 l/min
Measurement rate
2.2 kHz
Maximum operating pressure
50 barg (5000 kPag)
Pressure drop at maximum flow
< 20 kPa
Fluid temperature range
-20°C to +120°C
Ambient temperature range
-40°C to +120°C
Temperature Measurement
1 x 1000 Ohm RTD (1/3 DIN standard)
* Calculated according to ISO/TR using root-sum square method yielding 95% confidence
Mechanical
Dry weight
1000 g
Fluid capacity
140 ml
Wetted materials
FPM, anodised aluminium alloy, stainless steel, PEEK
Fuel line connection
-16AN ttings with 1-5/16 inch UNF thread
Deutsch sensor connector
ASDD006-09PN-HE
Deutsch mating connector
ASDD606-09SN-HE
Environmental
Storage temperature
-40°C to 85°C
External pressure rating
100 kPa
Environmental protection
IP65 (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 identifier)
Baud rate
1 Mbit/sec
CAN termination resistor
No
TTL Pulse Output
Voltage output range
0-5V
Pulses per cc
30 (fully configurable)
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, oil, engine coolant, water please contact us about other fluids