Pressure Sensor (Tank / Pipe Monitoring)

The Tyre Pressure Analogy

जेव्हा तुम्ही तुमच्या vehicle च्या tyre pressure ची तपासणी करता, तेव्हा तुम्हाला एक number मिळतो. फक्त "high" किंवा "low" नाही, तर PSI किंवा Bar मध्ये एक actual value. ती exact value तुम्हाला सांगते की air टाकायची, थोडी release करायची, की तशीच ठेवायची.

BMS मधील एक pressure sensor अगदी याच प्रकारे काम करतो — एका point वर actual pressure मोजतो आणि controller ला continuous reading पाठवतो.

Pressure Sensor चे Applications:

WATER TANK LEVEL MONITORING:
  Pressure sensor at tank bottom
  Water height creates pressure proportional to level
  More water = more pressure = higher level reading
  BMS knows tank level continuously without float switch
  Raises alarm when level is low or overflows
  Commands fill pump to start/stop
CHILLED WATER SYSTEM PRESSURE:
  Monitors system pressure continuously
  Low pressure = possible water leak or pump fault
  High pressure = possible blockage
  BMS alerts engineer before damage occurs
COMPRESSED AIR PRESSURE:
  Monitors compressed air supply to pneumatic actuators
  Low pressure = actuators will not operate correctly
  BMS alarm → engineer investigates compressor
HOT WATER SYSTEM PRESSURE:
  Boiler and heating system pressure monitoring
  Safety critical — overpressure in boiler = serious hazard

Pressure वरून Level कशी Calculate केली जाते:

Water creates pressure based on height (head pressure):
1 metre of water height = approximately 9,800 Pa = 0.098 Bar

So if sensor reads 0.3 Bar:
  0.3 Bar ÷ 0.098 = approximately 3 metres of water above sensor
  If tank is 4 metres deep: level = 3/4 = 75% full
BMS converts pressure reading to % level automatically
Displays level, controls fill pump, sends alarms