Myron L PS9TK - Manual (Page 15)

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the display and holding either key scrolls the value rapidly.
While in calibration or calculator mode, the keys step or scroll the
displayed value up or down.
While in Memory Recall, the keys scroll the display up and down
through the stack of records (ref. Memory Recall, pg. 37).
iv. aFTER uSing ThE P
OOL
P
RO
A. Maintenance of the Conductivity Cell
Rinse out the cell cup with clean water. Do not scrub the cell. For
oily films, squirt in a foaming non-abrasive cleaner and rinse (ref.
Cleaning Sensors, pg. 48). Even if a very active chemical discolors
the electrodes, this does not affect the accuracy; leave it alone.
B. Maintenance of the pH/ORP Sensor
The sensor well must be kept wet with a saline solution. Before
replacing the rubber cap, rinse and fill the sensor well with Myron L
pH Sensor Storage Solution. If unavailable, you can use an almost
saturated KCl solution, pH 4 buffer or a saturated solution of table salt
and tap water (ref. pH and ORP/Free Chlorine Practices to Maintain
Calibration, pg. 37). nEvER uSE DiSTiLLED waTER.
if all ORP solutions are reporting approximately the same value,
clean OnLy the platinum ORP electrode with an MLc ORP
conditioner-soaked cotton swab, being careful not to touch the
swab to the glass bulb of the ph sensor.
v. SPEciFic REcOMMEnDED MEaSuRing PROcEDuRES
A. Parameter Methods
For Conductivity, Mineral/Salt and Total Dissolved Solids measurements,
if the proper solution is not selected (KCl, NaCl or 442), see Solution
Selection, pg. 24.
nOTE: After sampling high concentration solutions or temperature
extremes, more rinsing may be required. When sampling low
conductivity solutions, be sure the pH cap is well seated so that no
solution washes into the conductivity cell from around the pH cap.
B. Titration Methods
For Alkalinity, Hardness titrations, assemble the required materials
before you begin: a pipette with 100µL tips, the required reagents, the
cell extender, and the T-plunger.