Ultra Low Pressure Sensors
The LPSI/LPS2 Series ultra low differential pressure sensors measure
from 0.1” to 5” of water in various non-directional or bi-directional
calibration ranges. Based on a MEMS thermo-anemometer, the LPSI/LPS2
Series infers differential pressure from a nano-liters per second gas
flow through an integrated airflow channel.
The on-chip circuitry provides analog amplification and temperature
compensation to send an accurate linear output over a wide temperature
range (±2.5% FS from 5°C - 55°C). The LSP1 comes in various ranges from
0.1” to 2” of water while the LPS2 is available from ranges between
1-5” of water. Standard input voltage is 5VDC, and a 3V model is also
Key features include immunity to dust contamination and humidity. In
addition, the high flow impedance allows users to connect pneumatic
tubing and filters without significantly affecting the pressure
measurement. A small footprint of approximately 17.5 mm by 15 mm allows
for installation in small areas. A typical response time of 1-2 ms
provides flexibility in analyzing pressure readings. Modifications are
possible to suit a specific application and budget.
These features make the LPSI/LPS2 Series ideal for HVAC, medical CPAP
and other breath detection applications, fume hoods, biological safety
cabinets, critical containment, leak detection and much more.
- ranges from
0.1” to 2” of water
- on-chip circuitry
- accurate linear output
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