YSI 3200 - Manual (Page 47)

Principles of Operation Section 8
or less have larger electrodes that are closely-spaced.
CHOOSING A CONDUCTIVITY CELL
Decide which cell will be the most useful for your conditions by considering the conductivity of
the solution you want to measure and the size of the sample.
0 0.1 1.0 10 100 1000
µS/cm
1 10 100 1000 mS/cm
3440
3401
3418
3256,
3255, 3446
3254,
3253,
3252,
Conductivity
The chart above reflects general guidelines. Refer to cell specifications for details.
The multipoint calibration option on the YSI Model 3200 Conductivity Instrument gives greater
flexibility and performance when using one cell over a wide conductivity range. This feature
allows users to calibrate one cell with up to 5 different conductivity standard solutions. When
analyzing a sample, the instrument selects the calibration value that is closest in conductivity to
the sample.
3200 S ERIES C ONDUCTIVITY C ELLS
Dip cells are generally used for routine conductivity measurements. The 3254 Fill Cell is
designed for small sample or high throughput work. It requires only 5 ml of sample and can
take measurements quickly from one sample to the next.
The 3255 Flow Cell is designed for in-line conductivity measurements, such as for
ultrapure water systems.
YSI Incorporated Model 3200 43