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3.3 Installing the Sensor in the Sample Stream
3.3.1 Sensor Installation Requirements
Figure 3
Probe Dimensions
1-inch NPT
Each sensor is supplied with a sensor lockring for use with flow tee installations. Replace
the sensor protector with the lockring for those applications.
•
Install the sensor so that the sample contacting it is representative of the entire
process.
•
Mount the sensor at least 508 mm (20 inches) from the aeration basin wall, and
immerse it at least 508 mm (20 inches) into the process.
•
Install the sensor so that its membrane will not be exposed to the atmosphere for more
than 24 hours.
•
Do not install the sensor directly over aerators or air diffusers when located in an
aeration basin.
•
Install the sensor near the outfall from an aeration basin for most effective aeration
process monitoring and control.
Install the sensor using the instructions supplied with the installation apparatus.
See
Figure 3
for sensor dimensions and
172.7 mm (6.80 inches)
Figure 4
for suggested mounting configurations.
43.7 mm (1.72 inches)
37.8 mm (1.49 inches)
203.2 mm (8.00 inches)
Installation
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