Myron L 6Psi and 4P - Manual (Page 13)

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5. UP or DOWN Keys
While measuring in any parameter, the or keys activate
the Memory Store and Memory Recall functions.
While in “CAL” mode, the keys step or scroll the displayed value up or
down. A single press steps the display and holding either key scrolls the
value rapidly.
While in Memory Recall, the keys scroll the display up and down through
the stack of records (ref. Memory Recall, pg. 21).
IV. AFTER USING ThE ULTRAMETER II
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. 32). 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 (6Psi)
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, use an almost saturated KCl solution,
pH 4 buffer or a saturated solution of table salt and tap water (ref.
pH and ORP Practices to Maintain Calibration, pg. 20). NEVER USE
DISTILLED WATER.
V. SPECIFIC RECOMMENDED MEASURING
PROCEDURES
If the proper solution is not selected (KCl, NaCl, 442 or User), see
Solution Selection, pg. 11.
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.
A. Measuring Conductivity & Total Dissolved Solids (TDS)
1. Rinse cell cup 3 times with sample to be measured. (This conditions
the temperature compensation network and prepares the cell.)
2. Refill cell cup with sample.
3. Press or .
4. Take reading. A display of [- - - -] indicates an overrange condition.