Product Details
Flow Sensor for Anesthesia Machine Medical Module Sensor GFS131 for
Medical Equipment
1. Product Features:
- Adopts the thermodynamic detection principle, which enables stable
and reliable measurement of gas flow in the flow channel, ensuring
accurate capture of flow rate changes.
- Equipped with a built-in temperature sensor; each sensor undergoes
individual calibration for temperature compensation. This
effectively reduces the impact of ambient temperature fluctuations
on measurement results, maintaining high precision across the
operating temperature range.
- Provides a linear analog voltage output (zero output: 0.45 - 0.55V;
full-scale output: 4.34 - 4.66V). The linear output characteristic
simplifies signal processing and integration with downstream
control systems or data acquisition devices, lowering application
complexity.
- Offers excellent measurement performance with high accuracy (±2.5%
- ±4% F.S.) and good repeatability (±0.5% - ±1% F.S.), ensuring
consistent and trustworthy flow data for critical application
scenarios.
- Features a fast response time (standard 50ms, customizable to 15 -
1000ms). This allows the sensor to quickly detect sudden changes in
gas flow, making it suitable for applications requiring real-time
flow monitoring and feedback.
- Has a wide flow range option (standard 0 - 200 SLM, with other
ranges like 100 SLM, 150 SLM, 300 SLM available). It can adapt to
different gas flow measurement needs in various application
scenarios, enhancing versatility.
- Operates with low power consumption (125mW at 5V working voltage)
and low working current (25mA), which is beneficial for
energy-saving requirements in portable or battery-powered
equipment.
2. Product Applications:
- Primarily designed for medical equipment, especially intensive care
ventilators and portable ventilators. In these devices, the GFS131
sensor accurately monitors the gas flow delivered to or exhaled by
patients, providing essential data support for the ventilator’s
control system to adjust ventilation parameters (such as tidal
volume, respiratory rate) in real time, ensuring safe and effective
respiratory support for patients.
- Can also be applied in other gas flow monitoring scenarios that
demand high precision, fast response, and stable performance, such
as certain industrial gas flow control systems, laboratory gas
analysis equipment, or environmental gas sampling devices
(depending on specific flow range and medium compatibility
requirements).
Working Voltage | 5.0V |
Working Current | 25mA |
Flow Range | 20 - 300SLM |
Accuracy | ±2.5% - ±4%F.S. |
Repeatability | ±0.5% - ±1%F.S. |
Working Pressure | 100kPa |
Response Time | 50ms |
Working Temperature | -25℃ - 65℃ |
Storage Temperature | -40℃ - 90℃ |
Full - scale Output | 4.50V |
Zero Output | 0.45 - 0.55V |
Output Impedance | - 1000Ω |
Output Drift | 0.12%/℃ |
Signal Noise | 10mV (VRMS) |
Resistance | 120Pa/60SLM |
Power Consumption | 125mW/5V |
Company Profile
Yijiajie Electronics is a full range of silicon pressure sensors
from the United States, FREESCALE/, GE, MEAS, SMI, and a full range
of sensing and control products from the United States pressure,
temperature and humidity, gas flow, current, Hall effect, etc.,
Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

