EUTECH INSTRUMENTS DO 6 PLUS Instruction Manual download pdf (Page 14)

Instruction Manual pH 5+, pH 6+, Ion 6+

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3. Press ENTER to confirm that the ppm value is the desired standard. The displayed

value now shows the corresponding mV reading for the selected ppm value

selected. Allow the reading to stabilise.

4. When the mV reading is stable, press ENTER to complete the 1

point calibration.

The display will show the next highest calibration standard value. Rinse the

electrode with clean water.

5. Dip the electrode into your next highest standard solution. Add ISA if required. Swirl

it gently. Press CAL key to begin calibration mode.

6. Press ENTER to confirm that the ppm value is the desired standard. The displayed

value now shows the corresponding mV reading for the selected ppm value

selected. Allow the reading to stabilise.

7. When the mV reading is stable, press ENTER to complete the 2

point calibration.

The display will show the next highest calibration standard value. Rinse the

electrode with clean water.

8. To calibrate a 3

point, repeat steps 6 & 7. To exit from 2-point calibration, press

CAL key.

9. The ISE slope in mV value “PXX mV” will momentarily display before reverting to

ion measurement mode.

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EUTECH INSTRUMENTS DO 6 PLUS Instruction Manual Page 14