Manual

4. CAL/MCLR Key

CAUTION: Unintentionally pressing the CAL/MCLR key while making

measurements could inadvertently change the calibration of the

instrument by activating either:

• Thecalibrationmode(the“CAL”iconwillappearontheinstrument’s

display), or

• Thesolutionselectionmenu(theword“SEL”willappearonthe

instrument’s display).

• Ifyoudoaccidentallyactivateeitherofthesefeatures:

• DO NOT press either the UP or DOWN keys.

• IMMEDIATELY Repress the desired parameter function key

to return the instrument to measurement mode.

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. 18).

If is held down for about 3 seconds, “CAL” mode is not entered,

but “SEL” appears to allow Solution Selection (ref. pg. 15) with the Up

or Down keys. As in calibration, the CAL key is now 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. 26).

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. 25).

VI. AFTER USING the Dialysate Meter

A. Maintenance of the Conductivity Cell

Rinse out the conductivity cell with clean water. Do not scrub the cell.

Foroilylms,squirtinafoamingnon-abrasivecleanerandrinse(ref.

Cleaning Sensors, pg. 34). Even if a very active chemical discolors the

electrodes, this does not affect the accuracy;

leave it alone