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b. TDS Key
A press of
displays Total Dissolved Solids with units on the right.
This is a display of the concentration of material calculated from
compensated conductivity using the characteristics of a known material.
On the left is shown solution type selected for TDS (ref. Solution
Selection, pg. 9).
3. pH Key (TPH1)
Measurements are made on the solution contained in the pH sensor
well (ref. pH Measurement, pg. 29). The protective cap is removed,
and the sensor well is filled and rinsed with the sample enough times to
completely replace the pH Sensor Storage Solution.
After use, the pH sensor well must be refilled with Myron L pH Sensor
Storage Solution, and the protective cap reinstalled securely (ref.
Maintenance of the pH Sensor, pg. 8 and pH, pg. 20).
A press of
displays pH readings. No units are displayed.
4. CAL/MCLR Key
A press of
allows you to enter the calibration mode while
measuring conductivity, TDS or pH. Once in CAL mode, a press of this
key accepts the new value. If no more calibration options follow, the
instrument returns to measuring (ref. Leaving Calibration, pg. 11).
If
is held down for 3 seconds, CAL mode is not entered, but
“SEL” appears to allow Solution Selection (ref. pg. 9) with the Up or
Down keys. As in calibration, the CAL key becomes an “accept” key.
While reviewing stored records, the MCLR side of the key is active to
allow clearing records (ref. Clearing a Record/Memory Clear, pg. 16).
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, these keys scroll the display up and down
through the stack of records (ref. Memory Recall, pg. 16).
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