7
4. Completely fill the rinsed cuvette (from step 3) with the remaining
portion (approximately 15 ml) of the grab sample and then cap the
cuvette with the supplied cap. Ensure that the outside of the cuvette is
dry, clean and free from smudges.
5. Place the cuvette into the instrument and press it down until it snaps
fully into the sample well. Index the cuvette by pressing and holding
down the
↵
↵
button while rotating the cuvette to identify the lowest
reading (the displayed turbidity is continuously updated on the display).
Once the cuvette is indexed, release the
↵
↵
button to display the
measured turbidity (see Glossary for more information on indexing a
cuvette).
6. Repeat steps 1 through 5 for all of your samples.
WARNING:
NEVER pour liquid directly into the sample well of the
instrument. Always use a cuvette. The instrument will only accurately
measure the turbidity of a sample when cuvettes sealed with the black cap
are used. The black cap serves as both seal and a light shield.
Note: The instrument will automatically power off after approximately 5
minutes to conserve battery power if no buttons are pressed.
4.
Instrument Calibration
The CyberScan IR TB100 was calibrated and tested prior to leaving the
factory. Therefore, it is possible to use the instrument directly out of the
box. However, re-calibration of the instrument is recommended to help you
become familiar with the operation of the instrument and the calibration
procedures. In addition, re-calibration is recommended at least once every
one month for optimum accuracy.
The CyberScan IR TB100 requires 4 standards to be fully calibrated. During
calibration, the instrument performs several system self-diagnostics. As
such, several warning messages may be displayed. If the instrument detects
an irregularity (detectors or lamp) a warning message will be displayed
upon exiting the calibration mode. If this occurs please attempt to rectify
the warning message yourself, or contact the authorized technical services
department (see section 5.2). In any event, the instrument will continue to
read the turbidity with a decreased accuracy until the error is rectified.