FMP0180-01
Ambient Pressure Sensor
The Ambient Pressure Sensor from Fidar Electronics measures absolute ambient air pressure from 300 to 1100 hPa. It connects to a FIDAQUIRE data logger over a daisy-chained CANopen bus.
300–1100 hPa measuring range
For weather data, altitude and site conditions
Stable readings for long-term pressure trending
RJ45 output on a CANopen bus
Daisy-chains up to 64 sensors per card
Works with the FBC0232-01 card and FIDAQUIRE logger
Up to 500 m of bus at 125 kbit/s
Power and data share one cable
A barometric pressure sensor measures absolute atmospheric pressure across 300–1100 hPa. Its trend is the basis of short-term weather forecasting — a fast drop means an approaching front — and alongside temperature and humidity it completes the picture of a site's conditions. The same value is used to estimate altitude and to correct a reference pressure in process calculations. Note that it measures absolute air pressure, not fluid pressure inside a pipe nor the differential between two spaces.
Key features
300–1100 hPa measuring range
For weather data, altitude and site conditions
Stable readings for long-term pressure trending
RJ45 output on a CANopen bus
Daisy-chains up to 64 sensors per card
Works with the FBC0232-01 card and FIDAQUIRE logger
Up to 500 m of bus at 125 kbit/s
Power and data share one cable
Connectivity
RJ45 CANopen output running at 125 kbit/s
Daisy-chain of up to 64 sensors on one FBC0232-01 card
Automatic input-break detection reported to the logger
Where it is used
Weather stations and site atmospheric monitoring
Altitude estimation and high-elevation sites
Reference barometric pressure for process calculations
Storage conditions for pharmaceuticals and sensitive goods
Agricultural and greenhouse applications driven by weather data
Estimating the offset between two spaces with a sensor in each
Installation
Install it in freely ventilated space; do not block its port or put it in the direct blast of a fan.
