Thermo Fisher Scientific CyberScan CON 10/CON 100/CON 200 - Manual (Page 32)

29
8.2.3 P1.2: Calibration Status Display
The meter can be used to a maximum of five different calibrations in its five ranges of
measurement. This SETUP program not only allows you to see if a particular range has been
calibrated, but indicates the calibrated value. The secondary value shows P1.2. The range
number (i.e. 1, 2, 3, 4 & 5) is indicated in the left corner of the display. While in P1.2, you can
press MI/ ! or MR/ " key which will scroll from range number 1 to 5 to display all the
calibration status of the five ranges shown in the primary display. On pressing ENTER/RANGE
key, the meter scrolls into the next SETUP parameter.
The meter will display the calibrated value in each range and the units (ppt/ppm/
µ
S/mS)
depending upon which modes were used during calibration. This allows a greater ease of use.
NOTE: The meter stores a maximum of five calibration values per range i.e. one calibration
value per range. See Section 4 on Calibration. If the TDS factor (see Program 3.0) is changed,
all previous TDS calibration values will not have a meaningful relationship to physical
parameters and the meter displays “-- -- -- --“ for all TDS calibration values.
This indicates that the meter is not calibrated in any of the five ranges using the new TDS
factor.
NOTE: The previous calibration status would not be restored if the previous TDS factor were
re-entered.
It is, therefore, necessary to calibrate the meter once the TDS factor is changed. Then, the
SETUP mode will show the status of the five calibration ranges, indicating the TDS values in
which you have calibrated with the respective range numbers.
Otherwise, the meter will continue to function with the previous calibration values and the new
TDS factor, unless calibration is specifically reset by the SETUP option P2.2.
Figure 25: Calibration status display