Myron L POOLPRO PS9TKB, Operation Manual

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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 inside rim of the cell extender
to remove sample that may be stuck to the T-plunger.
8. Press . “CA” alternating with “tdS” displays along with
“PPM” sample value. “P
r
ES CAL” displays when the reading
stabilizes.
9. Press CAL. "HC" or "LC" will display; use the UP or DOWN keys
to switch to HC for the higher range (0-1710 ppm) or LC for the
lower range (0-200ppm). Press CAL to accept and continue.
10. “Add” alternating with “buFF” displays. Using the pipette, add
100µL of Reagent: HB to the sample, close the cell extender cap
securely. Change the pipette tip for adding EDTA in following steps.
Press CAL to continue.
11. “AGit” flashes on the screen. Agitate to mix the sample. When
agitation is done, tap the cell extender cap to dispel any solution
clinging to the cap back into the cell. Press CAL to continue.
12. “HOLd” displays. Keep holding the meter steady until “Add”
alternating with “EdtA” displays. Open the cell extender cap
carefully to avoid spilling, and use the pipette to add 100µL of
EDTA-B-HC or EDTA-B-LC, as indicated on the display. Close
the cell extender cap securely. Press CAL to continue.
13. “AGit t1” flashes on the screen. Agitate to mix the sample.
When agitation is done, tap the cell extender cap to dispel any
solution clinging to the cap back into the cell. Press CAL to continue.
(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.)
14. Repeat Steps 12 and 13 until the meter reports the hardness result.
15. Press CAL. The “CAL” icon will display.
16. Adjust the displayed value to "200" using the UP or DOWN key.
NOTE: If you scroll beyond ±10% of the reading "FAC" will display. If
you press the CAL key while "FAC" is displayed, the instrument will
return Hardness to factory calibration (erasing any previous wet calibration
adjustments).