GAC Motor Co., Ltd.
Guangzhou Automobile Group Co., Ltd. (“GAC”) was incorporated in June 1997.At present……...
LDE Low Pressure Sensor for High Immunity to Dust and Humidity
The LDE differential low pressure sensors are designed with thermal flow measurement of gas through a micro-flow channel integrated within the sensor chip. The advanced LDE technology features outstanding sensitivity especially for ultra-low pressures. The very low gas flow through the sensor ensures high immunity to humidity, dust contamination, and long tubing compared to other flow-based pressure sensors. Small SMT and DIP housings allow for space-saving PCB-mounting.
Typical applications of the LDE differential low pressure sensors include HVAC, medical devices, and instrumentation.
Technical specifications
| Pressure ranges | Differential/Gage: 0...25 to 0...500 PaDifferential (Pressure/Vacuum): 0...±25 to 0...±500 Pa |
| Output signal | SPI, 0.3...2.7 V, 0.5...4.5 V |
| Pressure connection | tube fitting (Ø 2 mm) |
| Size without nipples and pins (approx.) | 13 x 18 x 8 mm |
Features
Pressure sensor based on thermal micro-flow measurement
Pressure ranges from 25 to 500 Pa (0.1 to 2 in H2O)
High flow impedance
Calibrated and temperature compensated
On-chip temperature sensor
Unique offset auto-zeroing feature ensuring superb long-term stability
Offset accuracy better than 0.2 % FS
RoHS and REACH compliant
Analog output and digital SPI interface
Total accuracy better than 0.5 % FS typical
Quality Management System according to EN ISO 13485 and EN ISO 9001
Media Compatibility
Air and other non-corrosive gases
Specifications
Maximum ratings
| . | |
|---|---|
| Supply voltage VS LDE...3... LDE...6... | 2.70 ... 3.60 VDC4.75 ... 5.25 VDC |
| Output current | 1 mA |
| Lead specifications Average preheating temperature gradient Soak time Time above 217 °C Time above 230 °C Time above 250 °C Peak temperature Cooling temperature gradient | 2.5 K/sca. 3 min50 s40 s15 s260 °C-3.5 K/s |
| Temperature ranges Compensated Operating Storage | 0 ... +70 °C-20 ... +80 °C-40 ... +80 °C |
| Humidity limits (non-condensing) | 97 %RH |
| Vibration1 | 20 g |
| Mechanical shock2 | 500 g |
Electrical Connection3
Specification notes:1. Sweep 20 to 2000 Hz, 8 min, 4 cycles per axis, MIL-STD-883, Method 2007.2. 5 shocks, 3 axes, MIL-STD-883E, Method 2002.4.3. The maximum voltage applied to pin 1 and pins 6 through 10 should not exceed VS+0.3 V.
Video: LDE/LME/LMI ultra-low pressure sensors for medical and HVAC applications
LDE/LME/LMI ultra-low pressure sensors for medical and HVAC applications
Video: LDE/LME/LMI ultra-low differential pressure sensors offer high sensitivity
First Sensor LDE/LME/LMI ultra-low differential pressure sensors offer high sensitivity
Video: LDE/LME/LMI ultra-low differential pressure sensors offer high immunity to dust and humidity
First Sensor LDE/LME/LMI differential pressure sensors offer high immunity to dust and humidity
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