YSI ODO200 - Manual (Page 17)

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3. Ensure that the o-ring installed on the probe is clean. If necessary,
wipe clean with a lint free cloth or replace the o-ring as described
in the previous step.
4. Locate the o-ring lubricant included with the new sensor cap.
Apply a thin coat of o-ring lubricant to the installed o-ring. Remove
any excess o-ring lubricant from the o-ring and/or probe with a
lens cleaning tissue.
5. Remove the new sensor cap from its hydrated container and dry
the inside cavity of the sensor cap with lens cleaning tissue. Next,
clean the clear surface of the sensor on the end of the probe with
lens cleaning tissue.
6. Using clockwise motion, thread the new sensor cap onto the probe
assembly until it is finger-tight. The o-ring should be compressed
between the sensor cap and probe. Do not over-tighten the sensor
cap and do not use any tools for the installation process.
7. After installing the new sensor cap, store the sensor in the gray
calibration/storage sleeve with a moistened sponge.
8. Follow the procedures below for entering in the new sensor cap’s
coefficients into the EcoSense ODO200 instrument.
ENTERING SENSOR CAP COEFFICIENTS INTO THE ECOSENSE
ODO200
After installing a new sensor cap, connect the probe/cable assembly to
the instrument and turn the instrument on. Locate the Calibration Code
Label at the top of the instruction sheet and note the six numbers which
are listed as K1 through K5 and KC. These six numbers contain the
calibration code for this particular sensor cap. Follow these instructions
to enter the new calibration coefficients into your instrument:
1. Press and hold the CAP key for 3 seconds. The CAP key is located
in the lower left corner of the keypad.
2. The instrument will prompt for K1 and show 8 alpha/numeric
values with the first value blinking.
3. Use the up and down arrow keys to adjust the first value to match
the first value of the new cap’s K1. Press the Enter key to accept.
4. Continue using the up and down arrow keys to adjust all 8 alpha/
numeric values for K1 pressing the Enter key to confirm each entry.
5. After confirming the last value for K1, the instrument will prompt
you for K2. Follow the instructions in step 3 and 4 to enter and
confirm the value for K2. Continue with K3, K4 and K5.
6. After confirming K5, the EcoSense ODO200 will prompt you for KC.
KC has two values. Follow the instructions in step 3 and 4 to enter
the coefficients. After confirming KC, the instrument will return to
the measurement screen.