Entering Sensor Cap Coefficients Into The Vwr Do220 - VWR DO220 Bedienungsanleitung

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 VWR DO220 instrument.

Entering Sensor Cap Coefficients into the VWR DO220

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 VWR DO220 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.
7. After entering the Sensor Cap Coefficients, perform a 1-point
calibration as described in the Calibration Section.
8. Press and hold the CAP key for 3 seconds at any time to exit and
cancel the cap coefficient update.
If errors are made in entering the Sensor Cap Coefficients, the instrument
will block the update and an error message will appear on the display
and the instrument will return to the K1 entry screen. If you see this error
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