Thermo Fisher Scientific CyberScan CON 10/CON 100/CON 200 - Manual (Page 36)

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8.4 Program 3: TDS Setup (in CyberScan CON 200 only)
8.4.1 P3.0 TDS factor
The TDS factor for a particular standard solution is a
multiplication factor which relates the measurement of
conductivity in
µ
S/cm to its equivalent reading in
ppm/mg/l. This factor is unique for each solution.
This option allows the selection of the TDS factor for the
solution to be measured. The TDS factor is shown on the
primary display. Toggle the MI/ ! or MR/ " key to select
the exact TDS factor. The range of values is from 0.4 to
1.0. Any values less than 0.4 or more than 1.0 would
cause an error. Press the ENTER/RANGE key to confirm
the TDS factor selected. Under default conditions, the
TDS factor is set to 0.5.
Figure 31: The TDS setup