安费诺Amphenol i2s AAS -i2S-LMS空气质量流量传感器 – 用于排放控制和发动机管理

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LMS质量空气流量传感器是专门为测量与车辆排放和发动机控制相关的空气量而开发的。根据热膜风速计的测量原理，空气质量流量传感器由成对布置的温度传感器和加热元件组成。这种布置允许双向测量，这使得可检测到回流和脉动。

产品应用
.车辆的排放和发动机控制
.加热系统
.空调技术应用
.过程控制
.气体流量监测
.过滤网监测 ey features Benefits
Semi-conductor hot film measurement element · Fast response time
· Reliable, stable measurement over the entire life cycle
Individual electronic calibration · High level of accuracy
· Application-specific characteristic curves
· Diagnostic options
Integrated temperature sensor · Simultaneous media temperature measurement
Compact and robust design with flange connection · Simple and flexible integration in flow channels(pipes) and a wide variety of systems
· Twist-proof installation
Bi-directional flow measurement · Detection of backflows and pulsations

Measurement ranges
Air mass 0 – 50…0 – 3,000 kg/h1)
Temperature -30…120°C
Electrical characteristics
Supply voltage 12 V (9…17 V)
Electrical characteristics
Supply voltage 12 V (9…17 V)
Air mass output signal 1…4.85 V, ratiometric to the reference voltage (main flow)
1…0.33 V, ratiometric to the reference voltage (backflow)
Temperature output signal NTC resistance output 2 k (25°C)
Reference voltage 5 V ± 0.2 V
Overvoltage protection 17 V
Reverse polarity protection 17 V
Diagnostic areas (detected sensor error) < 4% and > 97.5% of the reference voltage
Accuracy
Total air mass error 2% of the measurement value (25°C) 4)
Total temperature error ± 1% (25°C), corresponding to the NTC characteristic curve
Response time (t63) < 20 msec
Environmental conditions
Ambient temperature range -30…120°C
Operating temperature range -30…85°C
Media compatibility Air
ESD (ISO/TR 10605) 4 kV to contacts
EMC (ISO 11452-5) 100 V/m (Strip line)
Mechanical characteristics
Measurement element Al, Si and Si3N4 , NiCr, Al2O3
Material case PBTMechanical connection Flange
Electrical connector Bosch Compact, VDA Task Force
Installation position Defined by the reference pipe, inlet to the sensor element should be located approximately in the middle of the reference pipe diameter.
Weight Approx. 56 g
汽车应用:发动机管理；尾气排放；暖通空调
楼宇自动化应用:滤网监测
重型设备应用:发动机管理；尾气排放；暖通空调
HVAC暖通风:通风管道监测；过滤器监测
信号检测:流量

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