Encyclopedia of Environmental Science and Engineering, Volume I and II

(Ben Green) #1

46 AIR POLLUTION INSTRUMENTATION


AIR-TIGHT

PUMP

MAIN VALVE

VACUUMGAUGE

BY-PASS VALVE

IMPINGERS

THERMOMETERS

ORIFICE

ORIFICE MANOMETER

DRY GAS METER

VACUUM

LINE

CHECKVALVE

THERMOMETER

FLEXIBLETUBING

PROBE
EXTENSION

STACKWALL

PITOT MANOMETER

REVERSE-TYPE

PITOT TUBE
SAMPLINGNOZZLEIN-STACKFILTERHOLDER

TEMPERATURE

SENSOR

IMPINGER TRAIN OPTIONAL MAY BE REPLACED

BY AN EQUIVALENT CONDENSER

ICE BATH

* SUGGESTED (INTERFERENCE-FREE) SP

ACINGS

TYPE-S
PITOT TUBE

IN-STACK
FILTER HOLDER

TEMPERATURE

SENSOR

z^ >

7.6 cm (3 in.)*

x^ =

y^

>^

1.9 cm (0.75 in.)*

x y

z

FIGURE 2

Method 17 schematic.

C001_004_r03.indd 46C001_004_r03.indd 46 11/18/2005 10:12:45 AM11/18/2005 10:12:45 AM

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