Nimra Sahoo, student at University of engineering & technology lahore

1. Did this woman die because
doctors could not diagnose
her

2. BAD PRESSURE SENSOR IS DEATH WARRANT

3. PRESENTER
NIMRA SAHOO
2010-CH-41

4. YES THEY ARE IMPORTANT

6. The are found everywhere

7. BUT BEAUTY & BEAST COME TOGETHER

9. SAME SENSORS CAN BECOME WORSE FOR
YOU

10. Selecting the wrong pressure sensor

11. Installing pressure sensors incorrectly

12. Quitting too soon

13. MAJOR ACCIDENTS CAUSED BY DEASSEMBLING, BAD PRESSURE SENSOR
Pressure sensor
failure
Restart of
refrigeration
system
Diverging of
NH3
pressurized
circuit
regulating
system
Activation of
safety valve on
NH3 circuit
RELEASE OF
200 kg of NH3
300 evacuated
24 hospitalized
4 injured

15. METALLURGY – malfunctioning OF SENSOR
June 8, 2007
Oversight of
closing valve of
cooling system
Malfunctioned
P sensor
Perforation of
furnace cooling
system
Flow of water
in furnace
Water &
molten metal
contact
EXPLOSION
2 killed
2 M€ of property damages and
operating losses

16. afterbefore
FURNACE EXPODED

18. PIPE EXPLOSION

20. accidents involving PRESSURE sensors

21. regularly calibrate pressure sensors
Regular inspection & cleaning

22. TILL ITS TOO LATE