CI/AZ40-EN Rev. A
9
Mounting the probe
Preparing the stand-off – low temperature applications
Refer to Fig. 7 for flange options and recommended stand-off
pipe dimensions:
Fitting the stand-off – low temperature applications
Referring to Fig. 8:
1. Cut a hole in the outer wall / plate
A
with the following
diameter:
— 63 mm (2.5 in.) for 2 in. NB schedule 40 tube
2. On the same centre line, cut a hole through the refractory
B
with the following diameter:
— 50 mm (2 in.) for 2 in. NB schedule 40 tube
3. Weld the pipe section
D
(complete with flange
E
) in place.
4. Insulate the pipe section
D
with at least 25.4 mm (1 in.)
thick insulation material
F
. The pipe section may need to be
heated if it is longer than 152.4 mm (6 in.) or if mounted at a
site where the temperature is <4.4 °C (40 °F).
5. Temporarily cover opening
G
until the sensor / probe / filter
assembly is ready for installation.
Preparing the stand-off – high temperature applications
Refer to Fig. 9 for flange options and recommended stand-off
pipe dimensions:
WARNING – Bodily injury
— Ensure suitable lifting equipment and qualified
personnel are available when mounting the sensor /
probe / filter assembly.
Fig. 7 Recommended stand-off pipe dimensions – low temperature
applications
Standard (low temperature) probe
152 mm
(6 in.)
All flange
options
2 in. NB pipe
IMPORTANT (NOTE)
If possible, taper the exit hole
C
approximately 15 °.
Fig. 8 Mounting – preparing the stand-off (low temperature applications)
Fig. 9 Recommended stand-off pipe dimensions –
high temperature applications
G
15º
High temperature probe only (3 in. NB pipe)
3 in. ANSI or
80 DIN flange
300 mm
(12 in.)
3 in. NB pipe
