M&C TechGroup SP3200 Operator's manual - Manual (Page 16)

16 Gas sampling and gas conditioning technology 2-1.3.9-ME
 First make sure that conditions at the intended place of use correspond to the data on
the rating plate.
 The temperature of the process must be taken into account when selecting the sam-
pling point.
 Heating of the probe above the temperature limit given in table 5 must be prevented.
 It must be ensured that the temperature class of the probe corresponds to the ig-
nition temperatures of the combustible gases/vapours.
 Select the optimum sampling point in accordance with general guidelines or agree on a
sampling point with the responsible authorities.
 Place the sampling point in such a way that there is sufficient space for installation and
removal of the probe. Do not forget to include the insertion length of the sample tube
in your considerations.
 Easy access to the probe must be ensured to facilitate later maintenance work.
 The customer-side sample nozzle should be dimensioned so that the temperature of the
nozzle is always above the process dew point to prevent corrosion and blockages.
 If the ambient temperature in the area of the nozzle is higher than 60°C due to radiant
heat, a radiant heat reflective plate must be installed locally to protect the probe.
 The mounting flange connection for the nozzle should be DN65 PN6. If another connec-
tion size is desired, an optional intermediate flange adapter /SO10 is available.
 The necessary minimum flange size or minimum nozzle diameter depends on the diam-
eter of the sample tube or preliminary filter used.
The prevailing operating parameters must be checked against the following table prior to installation:
Operating parameters for the combustible gas (SP3200(V))
Gas composition corrosive toxic explosive
Zone classification process side
Zone classification environment
Ignition temperature of the gases/vapours °C
(>max. surface temper-
ature from table 4)
Corresponds to tem-
perature class
Explosion group IIA IIB IIC
Process conditions
Low pressure/ excess pressure situation mbar mbar
Process temperature °C, min. °C max.
What parameters should be measured, eg.
02, CO, SO2, NOX,.., Vol.% mg/Nm³ ppm
Required gas flow rate l/h, min. l/h, max.
Necessary T90 time sec.
Table 6 Operating parameters
12 MOUNTAGE
The M&C probes SP3200 und SP3200V have been developed for stationary use. With correct selection and
installation, they will guarantee many years of trouble-free service with a minimum of maintenance.
We recommend a horizontal mounting position with the sample gas outlet showing downwards (this is not
absolutely essential for proper functioning of the probe). The probe should be installed with an inclination of
approximately 10° with respect to the process.