Myron L POOLPRO PS9TKB, Operation Manual

Page: 33 / 74

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c. Press or , then press twice in COND/
three times in TDS. The “CAL” icon will appear on the display.
d. Press or to step the displayed value toward the
standard’s value or hold a key down to scroll rapidly through
the reading.
e. Press once to confirm new value and end the calibration
sequence for this particular solution type.
3. Resistivity Calibration
Resistivity is the reciprocal of Conductivity. To calibrate resistivity,
calibrate conductivity for the solution type you wish to measure (ref.
Conductivity or TDS Calibration, pg. 28).
4.
Reloading Factory Calibration (Cond or TDS)
If calibration is suspect or known to be incorrect, and no standard solution
is available, the calibration value can be replaced with the original factory
value for that solution. This “FAC” value is the same for all Ultrameter III s,
and returns you to a known state without solution in the cell. The “FAC”
internal electronics calibration (which bypasses the electrodes and cell)
is not intended to replace calibration with conductivity/TDS standard
solutions. If another solution type requires resetting, change solution
type and repeat this procedure.
a.
Press or .
b. Press . (If in “User” solution mode — press CAL key
twice if in Conductivity, and three times if in TDS to skip over
tempco and ratio adjustments.)
c. Press key until “FAC” appears and release.
d. Press to accept the factory calibration setting.
5. Alkalinity Calibration
Prepare the materials required for titration: Alkalinity Standard Solution
100PPM, Reagent: A1, cell extender, T-plunger, and 100µL pipette with
a clean tip installed.
NOTE: If you do not complete each titration point within the 3-minute
timeout period, the unit exits the Alkalinity function. Start the titration
process over.