| 产品特性：热式流量 | 品牌：Posifa / 博思发 | 型号：PMF5008V-O2C |
| 传感器类型：流量传感器 | 监测范围：0~40 SLM | 精度：±4% |
| 输出电压：5V | 电源电压：10V | 系列：PMF5006-O2C |
| 特性：气体流量 | 安装类型：板载 | 最小包装数：1 |
| 应用领域：测量仪器 | 工作温度：-25至85 °C | 校准温度范围：0至50 °C |
| 存储温度：-40至90 °C | 湿度：0至***相对湿度，无凝露 | 冲击：100 g峰值(5次跌落，3轴) |
| 工作压力：25 psi | 零点电压：1 VDC | 输出数值 (D)：256至 16124 |
| 零点漂移：0.5 % F.S. | 可重复性：0.2 % F.S. |
PMF5000-O2C 系列
医疗设备用空气质量流量传感器
说明
Posifa公司为便携式医疗设备设计了PMF5006系列空气质量流量传感器。该传感器快速，能计量脉动气体流量。传感器体积小，
非常适合空间受限的应用。推入式快插接口便于快速组装。现有产品可以按客户要求定制气流方向 (正向或反向)。
PMF5006系列采用博思发科技公司第三代热式流量传感器芯片，采用微加工技术制造。传感器芯片使用一对热电偶检测由质量流量引起的温度梯度变化，具有信噪比和可重复性。传感器芯片上的“固态”绝热结构去除了传统产品中使用的表面空腔或脆弱薄膜，使传感器芯片坚固耐用，能够避免堵塞，并抵抗压力冲击。
PMF5006系列有提供模拟输出的PMF5006V和提供I2C数字输出的PMF5006D。
PMF5006系列在美国FDA批准和CE认证的医疗设备中大量使用。
额定值
工作温度: -25至85 °C
校准温度范围: 0至50 °C
存储温度: -40至90 °C
湿度: 0至***相对湿度，无凝露
冲击: 100 g峰值(5次跌落，3轴)
工作压力: 25 psi
特点
采用坚固且高性价比的封装，实现性能
“固态”传感器芯片(无表面空腔或脆弱薄膜)
可避免堵塞，抵抗压力冲击
高精度(典型值: ±4%)
快速响应时间(典型值: 5ms)
线性输出和温度补偿
低零点漂移，长期稳定
推入式快插接口
可以按客户要求定制气流方向(正向或反向)
模拟输出或数字I2C输出
已在美国FDA批准和CE认证
的医疗设备中经过验证
线性输出说明
对于PMF5000V
流速=[（Vout-1 V）/4 V]x满量程流速
例如， PMF5006V满量程流速为15 SLM。当Vout读数为3 V时，
流速为：[（3 V-1 V）/4V ]x 15 SLM=7.5 SLM。
对于PMF5000D
流速=[（输出读数-256）/15868]x满量程流速
例如，PMF5006V满量程流速为15 SLM。当电子输出读数为10000时，
流速为：[(10000-256)/15868 ]x 15 SLM=9.21 SLM.
DESCRIPTION
Posifa designed the PMF5006 series of mass air flow sensors specifically for portable medical devices.
The sensor is fast and accurate, enabling the precise amount of gas to be delivered in a pulse mode. The sensor’s small footprint fits nicely inside a spaceconstrained
housing. The stress-relieved wiring harness with pre-installed receptacle provides reliable electrical connection to the circuit board. The flow direction (forward or backward) can be customized to work with an existing system layout.
PMF5006 features Posifa’s third-generation thermal flow die, benefiting from the latest innovations in microfabrication. The sensor die uses a pair of thermopiles to detect changes in temperature gradient caused by mass flow, delivering excellent
signal-to-noise, and repeatability. The “solid state” thermal ***lation structure on the sensor die eliminates the need for surface cavity or fragile membrane used in competing technologies, making the sensor resistant to clogging and pressure shock.
The PMF5006 series delivers a linearized and temperature compensated analog voltage output.
The PMF5000 series is a proven product that has been used in quantity in FAA approved, FDA cleared, and CE certified medical devices.
MAXIMUM RATINGS
Operating Temperature: -25 to 85 °C
Calibrated Temperature Range: 0 to 50 °C
Storage Temperature: -40 to 90 °C
Humidity: 0 to *** RH, non-condensing
Shock: 100 g peak (5 drops, 3 axis)
Operating Pressure: 10 psi
FEATURES
Unsurpassed performance in a robust and cost
effective package
“Solid state” sensing core (no surface cavity
or fragile membrane) resistant to clogging and
pressure shock
Highly accurate (4% reading typ.)
Fast response time (5 ms typ.)
Linear output and temperature compensation
Long-term stability with minimal null drift
Elbow barb fittings*
Wiring harness with pre-installed receptacle
Flow direction can be changed (forward or
backward) per customer request
Analog or digital I2C output
Proven in FAA approved, FDA cleared. and CE
certified medical devices
For PMF5006V
Flow Rate = [(Vout - 1 V) / 4 V] x Full Scale Flow Rate
For example, for PMF5006V full scale flow rate is 15 SLM. When Vout reads 3 V, the Flow Rate
is: [(3 V - 1 V)/4V x 15 SLM] =7.5 SLM
For PMF5006D
Flow Rate = [(Count - 64) / 3967] x F ull Scale Flow Rate
For example, for PMF5006V full scale rate is 15 SLM. When digital output reads 1000, the Flow
Rate is:
[(1000 - 64)/3967 x 15 SLM] = 3.54 SLM
*Contact Posifa for I?C communication app note.
