11
Calibration
Load a new calibration code whenever a new batch of
sensors is used with the instrument. The stored calibration
code must match the batch code of the sensor.
Entry Of New Calibration
1
On start-up, change the calibration using the left button.
Slide the front fastener to the right, and open the
instrument case.
2
With your left thumb, press the bottom of the blue lever.
Insert the calibration chip into the gap, with the
connecting tracks facing up. Release the lever.
3
Close the instrument lid and wait for the calibration
to complete. Check that the new code displayed on
screen matches the number on the sensor packaging.
A test can now be performed.
If the calibration procedure was unsuccessful, an
error message will be displayed. Do not remove the
calibration chip, open and close the lid again to repeat
the calibration.
4
Press the blue lever and remove the calibration
chip.
Error Messages
The PAASense features an error detection system to
guide the user. If an error message appears, follow the
guidelines below.
After correcting each error, press the power key to reset
the instrument. Always replace the sample water if a
sensor has had contact with it.
Error
Unable to read:
Remove and discard the sensor, dry the
electrical connectors (see page 13).
Check sensor and
OR
contacts
Remove the calibration chip.
Unable to read:
Press the enter key and use check
standards. See the calibration check
Sensor not
standard instructions (with CS181 PAASense
responding
Check Standards) for details.
Unable to read:
Dry the electrical connectors (see page 13)
Faulty sensor
Lid opened during
Discard sensor and sample. Repeat test.
test
Sample not level
Discard sensor and sample. Repeat test.
during test
12
Action