Hanna-instruments HI 93703 Bedienungsanleitung PDF herunterladen (Seite 5)

98

• Wipe the cuvette thor-

oughly with a lint-free

tissue (HI 93703-70)

before inserting into

the measurement

cell. The cuvette

must be completely

free of fingerprints

and other oil or dirt,

particularly in the

area where the light

goes through (ap-

proximately the bot-

tom 2 cm/1 inch of

the cuvette).

• Place the cuvette

into the cell and

check that the notch

on the cap is posi-

tioned securely into

the groove.

• The mark on the

cuvette cap should

point towards the

LCD.

• Press the READ/⇑

key and the LCD will

display a blinking

“SIP” (Sampling in

Process). The tur-

bidity value will ap-

pear after approxi-

mately 25 seconds.

OPERATIONAL GUIDE

To prepare the instrument for taking

measurements, first install the batteries (see

Battery Replacement section on page 17) and

then turn the instrument on.

To maximize the battery life the meter is

automatically switched off after 5 minutes of

non-use. To reactivate it, simply press the ON/

OFF key.

MEASUREMENT PROCEDURE

• Turn the meter on by

pressing the ON/OFF

key.

• The meter will carry

out a self-test display-

ing a full set of figures.

After the test, the LCD

will change to the mea-

surement mode.

• When the LCD dis-

plays “----” the meter

is ready to measure.

• Fill a clean cuvette up

to one quarter inch

(0.5 cm) from its rim

with the thoroughly

agitated sample.

• Allow sufficient time for bubbles to escape

before securing the cap.

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