YSI ProDSS Manual page 7

w ithout a sensor or port plug installed in
all ports!
1. Apply a thin coat of lubricant to the o-rings
on the plug port. Wipe off any excess
lubricant with a lint-free cloth.
2. Insert the port plug into the empty port and
press until firmly seated.
3. 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.
NOTE: 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.
Sensor Guard Installation
Without the sensor guard, the sensors are
extremely vulnerable to environmental damage.
1. Carefully slide the sensor guard over the
sensors and bulkhead. Push the sensor
guard toward the bulkhead until the sensor
guard threads align with the bulkhead
threads.
2. Carefully finger-tighten the sensor guard
clockwise.
NOTE: If any resistance is felt, loosen the
sensor guard completely to prevent cross-
threading. Incorrect installation may cause
damage to the sensor guard or bulkhead that is
not covered by the warranty.
USB port cleaning
If the USB port cover gets
dislodged, dirt can get into
the port area. However, the
port entry is waterproof even when the port is
exposed. To clean dirt from the port area:
• Flush the port area out with water.
• Pour isopropyl alcohol into the port area
and let it sit for 30 seconds.
• Pour out the alcohol and let dry before
replacing the port cover.
Battery pack troubleshooting
Field Procedures
If the instrument is not turning on, do the
following:
1. Attempt to charge the unit: Using YSI
charging equipment only, plug unit into
the AC adapter with the USB connector
(see figure on next page).
2. If this does not power on the unit,
remove battery pack cover and examine
battery pack (see figure on previous
page).
NOTE: Do not remove the battery pack
if it is hot to the touch, is producing an
odd odor, or is leaking a fluid.
Removing and examining the battery pack
needs to be done with extreme care by a
team leader and in a dry, clean place,
preferably not in the field!
a) Remove the battery pack cover by
unscrewing (counter-clockwise) the
four screws with a flat or Phillips
head screwdriver (the retaining
screws are captured into the cover
and are not removable).
b) Inspect the battery pack; make sure
the battery pack connector is
properly connected to the
instrument.
c) If the connectors do not appear to
be properly connected, grasp the
battery pack connector with two
fingers and pull the connector
straight up to disconnect and
remove. Inspect the connector and
instrument pin connectors for any
debris or damage. If the connectors
look OK, align the battery pack
connector wire terminals with the
three instrument pins and connect
the battery pack.
d) If connectors look properly
connected, reinstall the battery
7
YSI ProDSS
th
18 Edition, 2016