Determination Of The Soot Number; Taking The Sample; Preparation - Wohler Rp 72 Bedienungsanleitung

5.3

Determination of the soot number


:
Fig. 2: Soot comparison chart
6

Taking the sample

NOTE!
To avoid condensation on the filter paper, the measuring head (1) and the probe
should be warmed on the boiler.
6.1

Preparation


Put the used filter paper under the soot com-
parison chart and search the matching seg-
ment.
The soot number of the sample is given by the
number of the matching segment.

Determine the arithmetical mean of three soot
numbers and round it up or down to the next
number.
This rounded mean represents the soot number of
the heating system.

Place the filter paper between the measuring
head (2) and the probe support (5).

Close the measuring heads by pressing the
clamps (3). It is important that the notch pin
engages into the notch of the ryton part.
NOTE!
A few quick pump strokes, previously to the
measurement, increase the operational qualities
of the instrument.

Fix the sampling probe tightly in the flue gas
pipe at the point of the highest temperature.
Use an cone 8 mm Ø.
Taking the sample
EN
21