M&C TechGroup SP35-H... Operator's manual - Manual (Page 7)

7
Gas sampling and gas conditioning technology 2-1.9.6MD
6 APPLICATION
The electrically heated M&C sample probe tube SP30/35-H... is used in extractive sampling systems
to avoid cooling and condensation of the sample in the insitu tube from the sample point to the heated
sample probe SP2000-H. To avoid a premature demage by cooling and condenstaion in dust loaded
processes, we recommend a heated tube type SP30-H1.1-V, including an insitu pre-filter V20-2/30,
heated up with the tube.
7 DESCRIPTION
The electrically heated M&C sample tube SP30-H... is available in 0,6 m, 1,0 m, 1,5 m and 2,0 m
length and the SP35-H... in 0,175 m length. The standard lengths for the pre-filter version SP30-H1.1-
V are 0,6 m and 1,0 m. The tube version SP30-H.../SP35-H... has an internal diameter of 22 mm. The
internal diameter of the version SP30-H1.1-V is reduced to 6 mm to optimize the tube dead volume.
With a mounting flange with 4 welded screws the heated sample tube SP30-H.../-V, SP35-H.. can be
easily fixed both to the flange at the sample point and the probe head SP2000-H. The heated sample
tube SP30-H.../SP35-H... is equipped with a G3/4"i thread connector at the tube end. This enables
fixing a standard non heated sample tube or pre-filter to the heated insitu tube.
The electrical cartridge heater is located inside a double tube system, completely separated from the
process. At the version SP30-H1.1-V the included large pre-filter V20-2/30 is heated up with the
sample tube. The temperature of the heated tube has to be adjusted in relation to the process
temperature and corresponding to the max. admissible sampling temperature. Depending on the
operating temperature the sample tubes are equipped either with a thermocouple (max. 320 °C) or a
PT100 temperature sensor (max. 200 °C).
Figure 1 Dimensions SP30-H.. and SP35-H..