Hanna Instruments HI 8424, Instruction Manual

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• When the buffer value is recognized and the
reading is stable, an acoustic signal (if en-
abled) advises the user, the "pH" symbol stops
flashing, the hourglass indicator disappears
and the "CFM" tag starts blinking to indicate
that the value can be confirmed.
•
Press CFM to store the first calibration point.
• The meter expects a pH 4.01 or 10.01 buffer.
• Rinse and immerse the pH electrode and the
temperature probe in pH 4.01 or pH 10.01
buffer (2
nd calibration point) and stir gently.
• When the buffer value is recognized and the
reading is stable, an acoustic signal (if en-
abled) advises the user, the "pH" symbol stops
flashing, the hourglass indicator disappears
and the "CFM" tag starts blinking to indicate
that the value can be confirmed.
• Press CFM to store the second calibration point.
• The meter returns to normal mode.
The pH calibration is now complete; "CAL" and the
pH tags corresponding to the buffers used for
calibration are lit on the LCD.
Notes
:
• If the buffer value is not recognized, after 12 seconds the meter will display
blinking dashes together with the "WRONG"
tag. Either the buffer solution is wrong or out
of specification and needs to be replaced or the
electrode is damaged.
• The meter will retain the calibration if the battery is removed.
• To quit calibration and keep previous data: press CAL after entering the
calibration mode and before the first point is accepted.
• To perform a single-point calibration: press CAL after the first point has been
confirmed.
If the temperature probe is not connected and manual temperature compensa-
tion is required, follow the procedure below:
• Press RANGE to select the temperature mode.
•
Rinse the pH electrode and place it into the pH 7.01 buffer, stir briefly and
wait a few minutes to reach thermal equilibrium.
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pH CALIBRATION SOLUTIONS
HI 70004P pH 4.01 buffer solution, 20 mL sachet (25 pcs)
HI 7004M
pH 4.01 buffer solution, 230 mL bottle
HI 7004L pH 4.01 buffer solution, 500 mL bottle
HI 8004L pH 4.01 buffer solution, 500 mL FDA bottle
HI 70007P pH 7.01 buffer solution, 20 mL sachet (25 pcs)
HI 7007M
pH 7.01 buffer solution, 230 mL bottle
HI 7007L pH 7.01 buffer solution, 500 mL bottle
HI 8007L pH 7.01 buffer solution, 500 mL FDA bottle
HI 70010P pH 10.01 buffer solution, 20 mL sachet (25 pcs)
HI 7010M pH 10.01 buffer solution, 230 mL bottle
HI 7010L pH 10.01 buffer solution, 500 mL bottle
HI 8010L
pH 10.01 buffer solution, 500 mL FDA bottle
STORAGE & CLEANING SOLUTIONS
HI 70300M Storage solution, 230 mL bottle
HI 80300M Storage solution, 230 mL FDA bottle
HI 70300L Storage solution, 500 mL bottle
HI 80300L Storage solution, 500 mL FDA bottle
HI 70000P Electrode rinsing solution, 20 mL sachet (25 pcs.)
HI 7061M
General cleaning solution, 230 mL bottle
HI 8061M General cleaning solution, 230 mL FDA bottle
HI 7061L General cleaning solution, 500 mL bottle
HI 8061L
General cleaning solution, 500 mL FDA bottle
HI 7073M Protein cleaning solution, 230 mL bottle
HI 8073M Protein cleaning solution, 230 mL FDA bottle
HI 7073L Protein cleaning solution, 500 mL bottle
HI 8073L Protein cleaning solution, 230 mL FDA bottle
HI 7074M Inorganic cleaning solution, 230 mL bottle
HI 7074L Inorganic cleaning solution, 500 mL bottle
HI 7077M Oil & Fat cleaning solution, 230 mL bottle
HI 8077M Oil & Fat cleaning solution, 230 mL FDA bottle
HI 7077L
Oil & Fat cleaning solution, 500 mL bottle
HI 8077L
Oil & Fat cleaning solution, 500 mL FDA bottle
REFILLING ELECTROLYTE SOLUTIONS
HI 7071 3.5 M KCl+AgCl electrolyte solution, 4 x 30 mL bottle, for single
junction electrodes
HI 8071 3.5 M KCl+AgCl electrolyte solution, 4 x 30 mL FDA bottle, for
single junction electrodes
HI 7072
1 M KNO
3
electrolyte solution, 4 x 30 mL bottle
A C C E S S O R I E S A C C E S S O R I E S
A C C E S S O R I E S A C C E S S O R I E S A C C E S S O R I E S