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O&M Manual
Rev-N (4/21)
Part 3 – Sensor Mounting
3.1 General
Select a location within the maximum sensor cable length for mounting of the sensor. Locating
the sensor within 25 ft. of the transmitter is generally preferred for ease of operation and
calibration.
3.2 Submersion Mounting
Most applications for D.O. monitoring are done using a submersible sensor. This method can be
used where flow is reasonably constant, and hydraulic head does not vary more than about 10
feet. Oxygen sensors can never be used in completely stagnant conditions. A flow velocity of at
least 0.3 feet per second is normally required for measurement.
Submersible sensors are mounted to a 1" pipe using a standard 1" PVC thread by thread pipe
coupling. The mounting pipe can be secured to standard 1½” or 2” pipe rail using a mounting
bracket kit available from ATI (part number 00-0628) as shown in Figure 6 - Submersible Sensor
Mounting.
SENSOR CABLE
2" HANDRAIL
1" ALUMINUM CONDUIT, THREADED1" T x T PVC COUPLING
ONE END OR 1" SCHED 80 PVC PIPE
LENGTH AS REQUIRED
(SUPPLIED BY CUSTOMER)
SWIVEL MOUNTING BRACKET WITH
HARDWARE, SUPPLIED BY ATI
SUPPLIED BY ATI
SENSOR, TYPICAL
2 - 3 FT. SUBMERGENCE
Figure 6 - Submersible Sensor Mounting
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