Hanna Instruments HI 8014, Instruction Manual

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pppppH CALIBRATION

H CALIBRATION

H CALIBRATION

H CALIBRATION

H CALIBRATION

For greatest accuracy, frequent calibration of the instrument is
recommended. The instrument should be recalibrated for pH:

a) Whenever the pH electrode or temperature probe is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Where extreme accuracy is required.
e) Whenever the battery has been replaced.

PREPARATION

Pour small quantities of pH 7.01 (HI  7007 or
HI  8007) and pH 4.01 (HI  7004 or HI  8004)
solution into two clean beakers.
For accurate calibration use two beakers for each buffer solution, the
first one for rinsing the tip of the electrode, the second one for
calibration. In this way contamination of the buffers is minimized.

To obtain accurate readings, use pH 7.01 (HI  7007 or HI  8007) and
pH 4.01 (HI  7004 or HI  8004) if you are going to measure acidic
samples or pH  7.01 (HI  7007 or HI  8007) and pH 10.01 (HI  7010
or HI  8010) for alkaline measurements.
If you need to calibrate 

HI 8014,  HI 8314  and  HI 8915 

to NBS

standards, use pH 6.86 (HI  7006 or HI  8006) instead of pH 7.01
and pH 9.18 (HI  7009 or HI  8009) instead of pH 10.01.

PROCEDURE  FOR  HI 8014

•

Remove the protective cap from the elec-
trode, rinse and immerse it in pH 7.01
buffer and stir gently. Wait a couple of
minutes for the reading to stabilize.

Note:

 the electrode should be submerged ap-

proximately 4 cm (1½") into the solution.
The ChecktempC should be located close
to the pH electrode.

• Take the temperature of the buffer solution

with a ChecktempC (or an accurate ther-

HI 7004

HI 7007

HI 7004

HI 7007

HI 7004

HI 7007

RINSE

HI 7007

CALIBRATION

°C

HI 7007

4 cm

(1

½

")

HOLD FUNCTION (HI  8915 ONLY)

The hold function is activated by the HOLD key. The measured value
is frozen on the display when this key is pressed. "S" symbol will
appear on the display to indicate the holding mode.

Press the same key again and the meter will return to its regular
operational mode.

AFTER  MEASUREMENTS

After measurements switch the instrument off
to save battery.
For 

HI 9214

: when not in use, disconnect the

electrode from the meter and cover the threaded
connector with the supplied protective cap.

ON

OFF

ON

OFF

OFF

mV

°C

pH

HOLD

S

pH