M&C SP Series, Instruction Manual

Page: 13 / 59

www.mc-techgroup.com SP2000, SP2300, SP2400 | 1.00.03 13
11 PROBE DESIGN OF THE HEATED VERSION
A complete gas sample probe consists of the heated filter part and a sample tube or prefilter. The filter housing
with its all-round heating element

forms a unit with the standard mounting flange DN 65 PN 6

and the laterally
mounted electrical connection box

.
The heat-insulated shield is mounted on the stainless steel angle

sheet which is mounted on the mounting
flange. It is secured with 2 pressure clamps. The cover ensures a uniform distribution of heat over the probe heater
and at the same time serves as protection against weather and accidental contact.
Figure 1 Design of basic version SP2000-H
11.1
SAMPLE GAS CONNECTION
The connecting clamp

for attaching heated M&C sample lines with external dimensions of between 40 and max.
50 mm is located at the aperture on the underside of the angle sheet, which is closed with a silicon lid

. The clamp
is mounted on an adjustable mounting bracket which allows adjustment for various sample line diameters.
The standard probe's sample gas outlet connection has a ¼" NPT internal thread to which the customer must con-
nect a suitable size of temperature resistant and threaded connector to connect the sample line in a gas tight
manner. These connectors can be supplied by
M&C .
In the high-temperature version -H320/C... , the sample gas outlet connection is fitted with a welded 6 mm
threaded pipe connection (optional 8 mm).
After the threaded pipe connector and sample line have been mounted, the sample gas outlet connection is en-
closed in special heat-conducting jaws

in order to avoid temperature failures in the critical connection areas. The
size of the heat-conducting jaws allows connection joints up to an external pipe dimension of 10 mm.