Xylem YSI ProDSS User Manual page 12

Introduction
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.
5. Carefully finger-tighten the retaining nut clockwise.
NOTICE: If any resistance is felt, loosen the retaining nut completely to prevent cross-threading. Incorrect
installation may cause damage to the sensor or bulkhead that is not covered by the warranty.
6. Use the sensor installation/removal tool to tighten the retaining nut clockwise until snug, about a 1/4 to 1/2
additional turn of the retaining nut.
NOTICE: Do not over-tighten the retaining nut. Over-tightening can cause damage to the sensor or bulkhead
not covered by the warranty.
Sensor Removal
To remove a sensor, insert the sensor installation/removal tool into the retaining nut, then rotate the retaining nut
counterclockwise to loosen. After the retaining nut has been completely unscrewed from the bulkhead, pull the sensor
straight out of the port and place it on a clean surface.
NOTICE: Install a port plug if not reinstalling a sensor in the exposed port. Exposure to water can cause
damage or corrosion to the bulkhead connectors not covered by the warranty.
Port plugs
To protect the bulkhead connectors from damage, install a port plug into any port without an installed sensor. Port
plugs and a tube of o-ring lubricant are included in the maintenance kit that ships with all 4 port ProDSS cables. Refer
to the Accessories section
NOTICE: Do not submerge the bulkhead without a sensor or port plug installed in all ports.
Installation
1. Apply a thin coat of o-ring lubricant to the o-rings on the plug port.
2. Remove any excess lubricant from the o-rings and port plug with a lint-free cloth.
3. Insert the port plug into the empty port and press until firmly seated.
4. Finger-tighten the port plug clockwise to install. If necessary, use the sensor installation tool to make sure that
the plug is fully seated into the port.
NOTICE: The o-rings will not be visible if a port plug is correctly installed. Do not over-tighten the port plug.
Over-tightening can cause damage to the port plug or bulkhead not covered by the warranty.
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Figure 5 Sensor port plugs and port numbering (4 port cables)
if an additional maintenance kit is needed.