LME – digital analog sensor with amplified output
The LME differential low pressure sensors are based on thermal flow measurement of gas through a micro-flow channel integrated within the sensor chip. The innovative LME technology features superior sensitivity especially for ultra low pressures.
The extremely low gas flow through the sensor ensures high immunity to dust contamination and long tubing compared to other flow-based pressure sensors. The low profile sensors of the LME series feature a total height of only 9 mm including pressure ports and allow for flexible direct manifold assemblies. Further, the SMT devices are highly versatile to fit to custom adaptors for application-specific mounting requirements.
Due to their excellent sensitivity, accuracy, offset long term stability and long service life, LME sensors are ideal for differential pressure gas flow measurement in bypass configuration. They offer measuring ranges from 25 Pa (0.1 inH2O) Full Scale.
The sensors are not recommended for new designs.
Variants
LMI pressure sensors with I²C output
Characteristics
- Pressure ranges 0 .. 25 Pa to 0 .. 2500 Pa differential / gauge, ±25 Pa to ±1250 Pa bidirectional differential
- Output Signal SPI and analog 0,5 .. 4,5 V
- Pressure connection O-ring (manifold), tube fitting with adapter
- Size without nipples and pins 11,2 x 17,6 x 6 mm³
- Operating temperature range -20 .. 80 °C
- Supply voltage 5 V
- Proof pressure 2 bar
- Burst 5 bar
Applications
Medical devices
- Respiratory devices
- Sleep diagnostic devices
- Sleep apnea therapy devices (CPAP)
- Spirometers
- Anesthetic devices
- Dialysis machines
- Infusion pumps
- Oxygen concentrators
- Vacuum suction pumps
- Insufflators
- Videoscopes
- Blood sugar measuring devices
- Pulse oximeters
- Computer tomographs (CT)
- Gamma probes
HVAC
- Volumetric flow measurement
- Channel pressure monitoring
- Room pressure monitoring
- Filter monitoring
Instrumentation
Available types
| Name | Pressure range | Pressure type | Output |
|---|---|---|---|
| LMES025BB6S | ±25 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMES050BB6S | ±50 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMES100BB6S | ±100 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMES250BB6S | ±250 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMES500BB6S | ±500 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMEM012BB6S | ±1250 Pa | bidirectional differential | SPI / Analog 0,5 .. 4,5 V |
| LMES025UB6S | 0 .. 25 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMES050UB6S | 0 .. 50 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMES100UB6S | 0 .. 100 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMES250UB6S | 0 .. 250 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMES500UB6S | 0 .. 500 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMEM010UB6S | 0 .. 1000 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMEM012UB6S | 0 .. 1250 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMEM015UB6S | 0 .. 1500 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
| LMEM025UB6S | 0 .. 2500 Pa | differential / gauge | SPI / Analog 0,5 .. 4,5 V |
Downloads
- Datasheet: LME pressure sensor
- Application note: Aplication advantages LDE/LME/LMI pressure sensor
- Application note: I²C bus communication with LMI – pressure sensor
- Application note: LDE/LME/LMI Series – dust test
- Application note: LDE/LME/LMI pressure sensors in bypass configuration
- Application note: Absolute pressure correction of LME/LMI pressure sensors
For information on prices and delivery times or if you have any technical questions, please contact info@amsys-sensor.com.