YSI Pro2030 - Manual (Page 6)

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Figure 3
INSTALLING THE DISSoLVED oXYGEN SENSoR
The Pro2030 has two compatible dissolved oxygen sensors:
Polarographic – This sensor has a black sensor body and is engraved with the
model number 2003. Polarographic will be abbreviated Polaro in the instrument’s
menu.
Galvanic – This sensor has a grey sensor body and is engraved with the model
number 2002.
For information on the differences between these two types of sensors, see
Sensor Type in the System Setup Menu section of this manual.
Before installing either sensor or connecting the cable to the instrument,
the Sensor Type must be configured for the sensor being installed/
connected. Failure to do this may result in damage not covered under
warranty. The instrument will step you through this setup the first time
the instrument is powered on. See the System Setup Menu section of
this manual for instructions on configuring the Sensor Type after the
first power on.
i
Remove the red plastic plug from the cable’s bulkhead port by pulling it 1.
straight out of the port. This can be discarded.
Remove the red plastic plug from the sensor’s connector by pulling it straight 2.
off the sensor. This can be discarded.
Ensure both the sensor connector and bulkhead connector on the cable are 3.
clean and dry.
Grasp the sensor with one hand and the cable bulkhead in the other. 4.
Push the sensor into the connector on the cable until it is firmly seated and 5.
only 1 o-ring is visible. Failure to properly seat the sensor may result in
damage.
Twist the sensor clockwise to engage the threads and finger tighten. Do 6.
NoT use a tool. This connection is water-tight.
For more detailed instructions, please refer to the sensor installation sheet that
is included with each sensor.
CoNNECTING THE PRoBE/CABLE ASSEMBLY To THE
INSTRUMENT
To connect the cable, align the keys on the cable connector to the slots on the
instrument connector. Push together firmly and then twist the outer ring until it
locks into place (figure 4). This connection is water-proof.
Figure 4, Note the keyed connector.
MeMBrane InstallatIon
The sensing end of the dissolved oxygen sensor is shipped with a protective red
cap that needs to be removed before using. Additionally, it is very important to
install a new membrane with electrolyte solution onto the sensor after removing
the red cap.
Prepare the electrolyte solution according to the instructions on the bottle. After
mixing, allow the solution to sit for 1 hour. This will help prevent air bubbles
from later developing under the membrane. Ensure you are using the correct
electrolyte solution for your sensor. Galvanic sensors utilize electrolyte with a