14
Duct pressure switches and sensors
Installing differential pressure probes for air
A - Control a filter (clogging)
B - Control a fan (upstream/downstream)
C - Measurement of difference in pressure between two ducts
D - Measurement of difference in pressure between two rooms or
of inside of duct and outside
Basic principles
Measuring static pressure(i.e. pressure exerted
by air on pipe walls)
Measuring dinamic pressure
Key
y Kg/m
3
, specific weight of air
m/s, air speed
g 9.81
m/s
2
gravity acceleration
Pd
mm C.A., dynamic pressure
Measuring total pressure
Summary of Contents for TN90
Page 2: ......
Page 21: ...CIB UNIGAS M039259CA 21 Fig 9 Hydraulic diagram 3ID0014 Two or more burners configuration...
Page 34: ...CIB UNIGAS M039259CA 34...
Page 54: ......
Page 63: ......
Page 64: ......
Page 65: ...RWF50 2x RWF50 3x User manual M12922CB Rel 1 0 07 2012...
Page 80: ...16 Note Specifications and data subject to change Errors and omissions excepted...
Page 81: ...KM3 Modulator USER MANUAL M12927CA Rel 1 0 10 2020...
Page 82: ...M12927CA MOUNTING 2...
Page 106: ......
Page 107: ......
Page 108: ......
Page 109: ......
Page 110: ......
Page 111: ......
Page 112: ......