Bacharach AAPM02 Manual Operativo página 3

SMOKE PUMP OPERATIVE MANUAL
FIELD OF APPLICATION
The smoke pump determines the soot spot number in combustion.
Basic safety instructions
!!! Warning !!!
Before using the smoke pump, warm it up to room temperature.

After approx. 10 measurements, check the withdrawal probe up to the valve for soot deposit and, if present clean

it. Apply the same to all the others pump parts; this operation should be done regularly (See chapter:
"Maintenance of the pump").
Occasionally test the smoke pump for leaks (see chapter: "Testing the pump for leaks"). It is recommended to

keep the soot picture comparison scale always in its wrapper and thus clean.
!!! Read carefully !!!
It is precondition that the smoke pump is exclusively used according to the intended use.

Do not apply excessive force to the testing instrument. (It may break)

TEST OPERATION. SMOKE SAMPLING
Before taking the smoke sample, the burner should already be in operation for at least 5 minutes.
A. Insert the filter paper in the opening on the pump head and clamp it with a clockwise rotation of the probe head.
B. Bring the probe tube through the measuring vent of the exhaust pipe in the middle of the flue-gas flow.
C. Perform 10 full suction strokes;
draw slowly and uniformly (suction stroke), shortly pause at the stop (pressure equalization), than move back
fast. According to the prescription, 1.63 ±0.07dm3 exhaust gas are thereby drawn through the filter paper.
The operation time of the 10 strokes has to be 40-60 seconds.
D. Release the probe head with a left-hand rotation and extract the filter paper stripe. A measuring spot with the
corresponding coloring remains on the filter paper.
To define the exact soot number, you have to take at least 3 samples! The soot spot number is averaged out of
them.
In case of a sluggish operation of the pump, lubricate the piston packing (see the chapter: "Lubrication of
the soot pump")!
TEST FOR OIL DERIVATE
A. Test the measuring spot for oil-derivate. For that purpose, drop some acetone solvent next to the measuring spot.
If there is no grey coloration, no oil is contained in the sample, which is correct.
Otherwise
If there is a grey coloration of the measuring spot: The exhaust gas contains oil! Inspect the oil burning installation!
Hold the filter paper with the measuring spot behind the grey scales of the soot picture comparison scale until the
spot appears fully in center and read off the soot spot number. The shade of grey looking more likely to the
measuring spot density shows the soot spot number.
C. Now average over the soot spot numbers of all samples taken. This value, rounded up to the next whole number,
is the value respectively the soot spot number of the installation.
AAPM020000AN 032271 030519
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- ENGLISH -