Differential Pressure
General Description
ALTA® Wireless Differential Pressure Sensors measure the pressure difference between two input ports.
Key Features
Measurement Range: -500 Pa to 500 Pa
Accuracy: ± 3% of reading ± 0.1 Pa
Calibrated
Temperature compensated
Configurable thresholds for critical condition monitoring
Principles of Operation
The ALTA Wireless Differential Pressure Sensor measures the pressure difference between two input ports based on a user-configurable time interval or Heartbeat. When viewing the sensor from the top, the right inlet port is the positive or high-side pressure input. When the pressure on this port is greater than the pressure on the left port, the sensor produces a positive pressure reading. When the pressure is greater on the left port the sensor produces a negative pressure reading. On each Heartbeat, the current measurement is sent to the gateway, making the data available in iMonnit or another approved data service.
Features of Monnit ALTA Sensors
Wireless range of 2,000+ feet through 18+ walls1
Frequency-Hopping Spread Spectrum (FHSS)
Best-in-class interference immunity
Best-in-class power management for longer battery life2
Encrypt-RF® Security (Diffie-Hellman Key Exchange + Advanced Encryption Standard (AES)-128 Cipher Block Chaining (CBC) for sensor data messages)
Sensor logs 2000 to 4000 readings if the gateway connection is lost (non-volatile flash, persists through power cycling):
10-minute Heartbeats = ~ 22 days
2-hour Heartbeats = ~ 266 days
Automatic over-the-air updates to sensor firmware (future-proof)
Free iMonnit Basic Online Wireless Sensor Monitoring and Notification System to configure sensors, view data, and send alerts via SMS text, email, and voice call
1 Actual range may vary depending on the environment and gateway.
2 Battery life is determined by the sensor reporting frequency and other variables. Other power options are also available
