Myron L 9PTK User Manual

Page 23

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19

All other values will display as default. You can adjust any or all of the values

displayed to determine the effect of the change(s) on the LSI value.

1. Measuring LSI

nOte: The unit will automatically power off after the period of inactivity

defined in the AUTO OFF setting (ref. AUTO OFF, pg. 43).
To compute the actual saturation index of a solution:
Before you enter the calculator function, you must measure and store

values for all water balance variables used by the calculator to compute

saturation index.

1.

Perform an alkalinity titration of the sample solution (ref.

Measuring Alkalinity, pg. 14). Press ms to store the reading in

memory.

2.

Perform a hardness titration of the sample solution (ref.

Measuring Hardness, pg. 16). Press ms to store the reading in

memory.

3.

Measure the pH of the sample solution (ref. Measuring pH, pg.

20) Press ms to store the reading in memory.

4.

Press

.

5.

The last stored alkalinity value is displayed.

6.

Press cal to accept value and advance to the hardness value

screen. The last stored hardness value is displayed.

7.

Press cal to accept value and advance to the pH value screen.

The last stored pH value is displayed.

8.

Press cal to accept value and advance to the temperature

value screen. The last stored temperature value (taken from

the last stored hardness or alkalinity titration) is displayed.

9.

Press cal to accept and calculate LSI. The saturation index

value will display. Press ms to store the reading. The unit will

automatically power off after the period of inactivity defined in

the AUTO OFF setting (ref. AUTO OFF, pg. 43).

If you want to modify any of the input values and recalculate LSI based

on those changes, press cal again and repeat steps 5-9. If you want

to change hardness units (ppm/grains), you must do so in the hardness

parameter. See Hardness Unit Selection, pg. 16.

2.

Hypothetical LSI Calculations

nOte: The unit will automatically power off after the period of inactivity

defined in the AUTO OFF setting (ref. AUTO OFF, pg. 43).

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