PROCAP 1 & 11: Capacitance Probe for Detecting the Presence or Absence of Material
By sensing minute alterations that are as low as 0.5 pF in capacitance, the PROCAP I and II stand……...
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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