Manual instruction MM850482 ed.04
15
The retaining screw in the cone enables the probe to be easily moved in order to locate the core flow, normally
correspondent to the center of the section of the stack.
The flue gas and exhaust gas pathways must be checked for gas-tightness before carrying out a
measurement and, if necessary, non gas-tight points should be sealed.
To locate the gas core flow insert progressively the sampling probe and read the maximum value of
temperature.
Tair probe
Gas probe
CAUTION
F
OR A CORRECT GAS ANALYSIS
,
NO AIR MUST REACH THE FLUE GAS AS A RESULT OF NON
-
GAS
-
TIGHT CONNECTION
POINTS BETWEEN THE HEAT PRODUCER AND THE MEASUREMENT SITE
(
PROBE
).
T
HE FLUE GAS AND EXHAUST GAS PATHWAYS MUST BE CHECKED FOR GAS
-
TIGHTNESS BEFORE CARRYING OUT A
MEASUREMENT
,
AND IF NECESSARY NON
-
GAS
-
TIGHT POINTS SHOULD BE SEALED
.