bad pressure sensors

Did this woman die because

doctors could not diagnose her

BAD PRESSURE SENSOR IS DEATH WARRANT

PRESENTER

NIMRA SAHOO2010-CH-41

YES THEY ARE IMPORTANT

The are found everywhere

BUT BEAUTY & BEAST COME TOGETHER

SAME SENSORS CAN BECOME WORSE FOR

YOU

Selecting the wrong pressure sensor

Installing pressure sensors incorrectly

Quitting too soon

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

METALLURGY – malfunctioning OF SENSORJune 8, 2007

Oversight of closing valve of cooling system

Malfunctioned P sensor

Perforation of furnace cooling

system

Flow of water in furnaceWater &

molten metal contact

EXPLOSION

2 killed

2 M€ of property damages and operating losses

afterbefore

FURNACE EXPODED

PIPE EXPLOSION

accidents involving PRESSURE sensors

regularly calibrate pressure sensors

Regular inspection & cleaning

TILL ITS TOO LATE