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

Taking the sample

5.3

Determination of the soot number

• :
Fig. 3: Soot comparison chart
6 Taking the sample
NOTE!
To avoid condensation on the filter paper, the measuring head (1) with the turbulence
spiral 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
heads (1) and (4).
• Close the measuring heads by pressing the
clamps 2. It is important that the notch pin en-
gages 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.
EN
21