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1.5
Sensor Installation/Removal
Probe assemblies like the ODO/CT, ODO/T, and ProOBOD feature integral sensors. These sensors cannot be removed
from the cable. Therefore, this section pertains only to the ProDSS 4-port cable.
ProDSS 4-port Cable
ProDSS 4-port cables feature user-replaceable sensors. The ports on the bulkhead are universal, meaning that you can
install any sensor into any port. A conductivity/temperature sensor must be installed for accurate measurement of all
parameters except turbidity and TSS.
Bulkhead ports are numbered
added to the Run screen display to clarify the measurement value of each sensor.
NOTICE: The bulkhead ports and sensor connectors are not wet-mateable. Make sure that the sensor
connectors and bulkhead ports are clean and dry before sensor installation.
3
2
1
Figure 4 Sensor installation
Sensor Installation
1. Remove the port cover shipped with the 4-port cable. This cover can be kept to protect the bulkhead ports from
contamination during long-term storage.
2. Inspect each bulkhead port for contamination. If the port is dirty or wet, clean it with compressed air.
3. Apply a thin coat of o-ring lubricant to the sensor o-rings. Wipe off excess o-ring grease with a lint-free cloth.
4. Carefully align the sensor and bulkhead connectors by inserting the sensor into the port then gently rotating the
sensor until the connectors align. Once aligned, push the sensor toward the bulkhead until the sensor seats in
the port.
Introduction
(Figure
4), so if multiple sensors of the same type are installed, the port number will be
4
5
1 Sensor
2 Port plug
3 Bulkhead
4 Sensor retaining nut
5 Sensor installation/removal tool
6 O-ring lubricant
7 Sensor port
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7
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