Ametek Thermox 2000 ATEX Series User Manual page 30

3-6 | Thermox Series 2000 WDG-HPII / HPIIC - ATEX
Flush with process mounting method (Preferred)
This section describes how to directly weld the Thermox supplied mount-
ing plate to your process so the attached pipe nipple extends completely
through the refractory. If you are unable to mount the sensor in this fash-
ion, refer to the other mounting methods described below.
To mount the sensor flush with the process, do the following (see Figure 3-3):
1. Create a 3 3/4" diameter hole in your process.
2. Insert the Thermox supplied pipe nipple, which is attached to the
mounting plate, directly through the refractory. If the pipe nipple pro-
vided by Thermox extends past the inside of the refractory wall on a
process which has a gas temperature over 650
cut down before installation so it is flush with the inside wall. Weld the
Thermox supplied mounting plate to the process wall.
3 Weld the Thermox supplied mounting plate to the process wall.
4 Mount the sensor to the process as described in the "Mounting the
Sensor to the Process" section later in this chapter.
This method positions the sensor flush with the process and helps to
ensure that the sample gas does not cool below its dewpoint. If the
sample cools below its dewpoint, water and other liquids can form
NOTE
that could plug the exhaust line of the sensor.
o
C, the nipple should be