Hanna-instruments HI 931100 Bedienungsanleitung PDF herunterladen (Seite 9)

1716

• To quit the calibration and save

the first point, press the CAL

key.

For better accuracy however, it is recommended

that a two-point calibration is performed.

TWO POINT CALIBRATION

• After the first point is confirmed,

immerse the FC300B electrode

into the second solution:

HI7085 at 0.3 g/L NaCl or

HI7081 at 30 g/L NaCl.

Note: The electrode should be

immersed approximately

2.5 cm (1") into the so-

lution.

• Select the second point value

by pressing the BUF key. Make

sure that the selected value cor-

responds to the one being used

for the second calibration point.

• If the reading is not close to

the selected value, the "BUF"

symbol will blink.

Otherwise, if the reading is

close to the selected value, the

meter will recognize the stan-

dard solution. Only the " "

symbol will blink, to indicate

that the reading is stabilizing.

• Once stabilized "CON" symbol

will appear on the display.

For best results, wait for a

couple of minutes and press

the CFM key.

• The two point calibration is now

completed and the meter re-

turns to the normal mode.

CAL

BUF

SINGLE POINT CALIBRATION (OFFSET)

• Dip the FC300B sodium elec-

trode into the HI7083 (3.00 g/L

NaCl) solution.

Note: Immerse the electrode

approx. 2.5 cm (1") into

the solution.

• Press the CAL key. The "CAL" and "BUF" indi-

cators will be displayed with the "BUF" and the

" " symbols blinking.

• As soon as the standard solu-

tion is recognized, only the

" " symbol will continue

blinking to indicate that the elec-

trode is stabilizing.

The value of the standard solu-

tion being used will be displayed

on the primary LCD.

• As soon as the electrode is sta-

bilized, "CON" symbol lights up.

For best results, wait for a couple

of minutes before pressing the

CFM key.

• HI 931100 will then display "30.0

gm".

CAL

gm

°C

NaCl

BUF

CAL

CFM

CFM

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