Product Description:
YJJ HAFUHT0020L3AXT 20SLPM Gas Flow Sensor Is Used In Medical
Anesthesia Equipment
Features:
HAF Series - High accuracy, bidirectional flow, long interface,
tight mounting, 0 SCCM to 50 SCCM flow range, digital I²C address:
0x49, 5.0 Vdc power supply voltage.
The - Zephyr™ HAF series of sensors provide a digital interface for
reading airflow data over the full flow range and temperature
compensation range.An insulated heater and temperature sensing
element help the sensor respond quickly to air flow or other air
currents.
The Zephyr sensor is designed to measure the mass flow rate of air
and other non-corrosive gases.Standard flow range can be used at
±50, ±100, ±200, ±400 or ±750 SCCM.Custom traffic ranges are also
provided.These sensors utilize integrated circuits on the circuit
board for full calibration and temperature compensation.
The HAF series compensates for temperatures from 0°C to 50 °C [32°F
to 122°F] and can operate in temperatures from -20 °C to 70°C [-4°F
to 158°F].ASIC based compensation enables digital (I2C) output and
1 ms response time.
These sensors measure the mass flow rate of the airflow based on
heat transfer principles.They consist of microelectromechanical
sensing systems (MEMS) containing thermal resistance microbridges,
thin film platinum resistance deposited on silicon nitride thin
films.The MEMS sensor chip is located within a precisely designed
airflow channel to provide a repeatable response to flow.
Zephyr sensors provide customers with enhanced reliability, high
accuracy, repeatable measurements, and the ability to customize
sensors to meet many specific application requirements.The
combination of a rugged case and a stable base makes these products
extremely durable.They are designed and manufactured to ISO 9001
standards.
- digital gas mass flow sensor
Technical specifications
Series name HAF
Flow/pressure range 0 SCCM to 50 SCCM
Power supply voltage 5.0 Vdc
Common mode pressure 25 psi
Operating temperature -20°C to 70°C [-4°F to 158°F]
Storage temperature -40°C to 125°C [-40°F to 251°F]
Supply of goods
UNSPSC code 41111931
Signal regulating amplification
Typical response time is 1 ms
Interface Type Long interface
Power consumption is 40 mW
Compensation temperature range 0°C to 50°C [32°F to 122°F]
Medium compatibility only for dry gases
Note nitrogen calibration gas
UNSPSC 41111931 Flow sensor
Product features
Total error band (TEB) as low as ±0.25 %FSS: The ability to perform
very accurate gas mass flow measurements is often ideal for
high-precision measurement applications
Fast response time: Enabling customer applications to respond
quickly to changes in gas flow is critical for critical health
(e.g., anaesthesia machines) and industrial (e.g., fume hoods)
applications.
Wide range of gas mass flow detection: Zephyr offers standard flow
measurement ranges of ±50, ±100, ±200, ±400, or ±750 SCCM, and
customizable flow ranges, allowing more options for sensor
integration into applications
Customizable flow range and configurable package type to meet
specific end-user requirements
Full calibration and temperature compensation: Often eliminates the
need for additional components associated with PCB signal
regulation, reducing PCB size and costs associated with these
components (e.g., procurement, inventory, and assembly)
Linear output: provides more intuitive sensor signal than the
original output of the basic gas mass flow sensor, which helps to
reduce production costs and shorten design and implementation time
Low pressure drop: Greatly improves patient comfort in health
applications, reducing noise and system wear from other components
such as engines and pumps
12-bit high resolution: Enhanced ability to detect subtle changes
in gas mass flow, enabling customers to control applications with
greater precision
3.3 Vdc low operating voltage options and low power consumption:
allows use in battery drives and other portable applications
Asic-based I2C digital output compatibility: Easily integrated into
microprocessors and microcontrollers, reducing PCB complexity and
number of components
Height free: Customers do not need to adjust the errors caused by
height changes in the system, do not need to buy additional sensors
for height correction, so it can easily achieve integration and
reduce production costs
Small size: takes up less space on the PCB, so it can be easily
assembled on the PCB and reduce production costs;The reduction in
PCB size also makes it easier to use in space-constrained
applications
Specifications:
| Series name | HAF |
| Flow/pressure range | 0 SCCM to 50 SCCM |
| Power supply voltage | 5.0 Vdc |
| Common mode pressure | 25 psi |
