25
K600000000SE 030804 011018
Length: 2 m
Well adapter: Material: Galvanized steel
External diameter: 10 .. 22 mm
Handle: Material: Nylon
Color: Black
Tip: Material: Stainless steel AISI 304
Diameter: 8 mm
Length: 300 mm
Working temperature: max. 600°C
8.5.3 Condensate trap and fine dust filter
The sample gas to be analyzed shall reach the measurement cells after being properly dehumidified and purified
from the residual combustion products. For this purpose, a condensate trap is used, which consists of a
transparent polycarbonate cylinder placed along the rubber hose of the sampling probe. Its purpose is to
decrease the air speed so that the heavier fine dust particles can precipitate and the vapor in the combustion
gases can condensate.
The condensate trap must be always kept in the vertical position in order to prevent condensate from touching
the measurement cells. This is also the reason why it is important to periodically drain the trap at the end of each
test (see chapter 'MAINTENANCE').
A replaceable low-porosity line filter is placed after the condensate trap aimed at keeping the solid particles
suspended in the gases. It is recommended to replace the filter whenever significantly dirty (see chapter
'MAINTENANCE').
8.5.4 Connecting the gas sampling probe and water-trap assembly
As shown in section 8.5 the gas sampling probe must be connected to the device as follows:
The polarized male connector of the thermocouple must be connected to the lower part of the device in the T1
socket. The improper insertion of the same is not possible thanks to the different lengths of the tips.
The shorter hose of the probe must be inserted in the condensation trap with ant-dust filter (see section 8.5.2).
The male connector of the filter assembly must be connected to the central female connector of the device
marked with "IN".
The longer hose of the probe, which ends with a male connector, must be connected to the negative pressure
input of the device marked with the letter "P-".
The different diameter of the connectors does not allow improper connections: this avoids damage to the device.
8.5.5 Gas probe for industrial engines
This type of probe is typically used in processes where the fumes sampled are very dirty and must be pre-filtered
directly in the chimney, before entering into the dual-stage condensate trap equipped with a filter with a degree
of filtration higher than the one inserted in the chimney.
To preserve the internal system it is mandatory to filter the dust out of the fumes directly on the probe tip, using
an AISI 316L stainless steel filter. Condensate and fumes are then separated by means of the two condensate
traps connected to the same probe. The probe tip is provided with a flange that acts as a heatsink to make sure
that, in case of very high temperature at the chimney, the handle is not damaged by a temperature that might
exceed 100 .. 120° C (max. allowed temperature).
Technical features:
Tip: Material: AISI 304 stainless steel
Diameter: 8 mm
Length: 750mm rigid tip + flange, insertion depth 600 mm
Handle: Material: Nylon
Color: Black
KEEP THE CONDENSATE TRAP IN THE VERTICAL POSITION DURING THE ANALYSIS; A
WRONG POSITIONING MAY CAUSE CONDENSATE TO ENTER THE INSTRUMENT AND
DAMAGE SENSORS.
AFTER EACH ANALYSIS, CHECK FOR ANY PRESENCE OF WATER IN THE CONDENSATE
COLLECTION BOWL AND EMPTY IT, IF ANY. PUT THE PROBE BACK IN THE CASE ONLY AFTER YOU
HAVE REMOVED CONDENSATE FROM THE TUBE AND THE EXPANSION TANK (SEE CHAPTER
'MAINTENANCE').
REPLACE THE FINE DUST FILTER IF IT HAS VISIBLE CRACKS, IS SIGNIFICANTLY DIRTY OR WET (SEE
CHAPTER 'MAINTENANCE'). DO NOT PERFORM ANY MEASUREMENT WHEN THE FILTER IS REMOVED
OR SIGNIFICANTLY DIRTY IN ORDER TO AVOID ANY RISK OF IRREVERSIBLE DAMAGES ON SENSORS.
ON SENSORS.
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