Dragino PS-LS-D – LoRaWAN Differential Pressure Sensor

PS-LS-D — LoRaWAN Differential Pressure Sensor

Sometimes it is not necessary to monitor the absolute air pressure but we need to know the difference of pressures in different points. One example may be before and after a valve in a pipe. If the valve is fully open, the pressure on both sides should be the same. If there’s a difference in the pressure, it could be the valve isn’t fully open or there’s a blockage.

Differential Pressure Sensor has two air pressure inputs. It monitors the pressure difference between these two inputs and put the value.

Differential Pressure Sensors can be used in home and industrial environments for applications such as offshore and subsea gas processing and remote heating systems.

Dragino‘s Wireless Differential Pressure Sensor includes various models to cover LoRaWAN, NB-IoT wireless transmission, and different ranges of pressure measurements.

• LoRaWAN 1.0.3 Class A
• Ultra-low power consumption
• Measure the Differential Pressure of two input
• Different pressure ranges available ( from 100Pa to 10KPa )
• Thread Installation Type or Immersion Type
• Monitor Battery Level
• Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865
• Support Bluetooth v5.1 and LoRaWAN remote configure
• Support wireless OTA update firmware
• Uplink on periodically or Alarm Input
• Downlink to change configure
• Solar panel + 3000mAh Li-on battery (PS-LS-D)

Applications:

• Indoor Air Control
• Filter Clogging Detect

   Micro Controller:

• • MCU: 48Mhz ARM
  • Flash: 256KB
  • RAM: 64KB

   Common DC Characteristics:

• • Supply Voltage: Built-in Battery , 2.5v ~ 3.6v
  • Operating Temperature: -40 ~ 85°C

   LoRa Spec:

• • Frequency Range, Band 1 (HF): 862 ~ 1020 Mhz
  • Max +22 dBm constant RF output vs.
  • RX sensitivity: down to -139 dBm.
  • Excellent blocking immunity

   Current Input Measuring :

• • Range: 0 ~ 20mA
  • Accuracy: 0.02mA
  • Resolution: 0.001mA

   Voltage Input Measuring:

• • Range: 0 ~ 30v
  • Accuracy: 0.02v
  • Resolution: 0.001v

   Battery:

• • Li/SOCI2 un-chargeable battery
  • Capacity: 8500mAh
  • Self-Discharge: <1% / Year @ 25°C
  • Max continuously current: 130mA
  • Max boost current: 2A, 1 second

   Power Consumption:

• • Sleep Mode: 5uA @ 3.3v
  • LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm