Myron L 9PTK - Manual (Page 19)

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3. Rinse the conductivity cell cup and cell extender 3 times with
solution to be measured.
4. Refill cell cup and cell extender with sample solution.
5. Insert T-plunger into open cell extender until the “T” rests flush
on the lip of the cell extender. This will cause fluid beyond what
is required for titration to overflow the cell extender.
6. Rotate the T-plunger from side to side, allowing the arms of the
T-plunger to slide along the rim of the cell extender.
7. Carefully remove the T-plunger so as not to flick or spill remaining
sample. Tap the T-plunger on the side of the cell extender to
remove sample that may be stuck to the T-plunger.
8. Press . “al” alternating with “tds” briefly displays along
with the “PPm” value of the sample. “P
r
es cal” will display
when the reading stabilizes.
9. Press cal to accept and advance to the first titration prompt.
“add” alternating with “a1” displays; then “agit t1” alternating
with “hOld” displays. (The number after “t” indicates which
titration point you are on. The number “1” here indicates this is
the first titration point. Subsequent titration points are sequenced
numerically: 2, 3, 4, etc.)
10. Using the pipette, add 100 µL of Reagent: A1, close the cell
extender cap securely, then agitate and hold. Repeat as
prompted. “P
r
es cal” will display.
11. Press cal to advance to the next titration point. “add”
alternating with “a1” displays; then “agit t2” alternating with
“hOld” displays.
12. Tap the cell extender cap to dispel any solution clinging to the
cap back into the cell. Carefully open the cell extender cap so
as not to spill any solution.
13. Continue adding 100µL of Reagent A1, agitating and holding the