OPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDE
OPERATIONAL GUIDE
1.5 cm
ON
OFF
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
• When the LCD displays "- - -", it is
ready.
• Fill one cuvet up to 1.5 cm (¾")
below the rim with deionized water
and replace the cap. This is the
blank.
• Fill another cuvet up to 1.5 cm (¾")
below the rim with unfiltered sample
and replace the cap. This is the
apparent color.
• Filter 50 mL of sample through a
filter with a 0.45 µm membrane.
• Fill the third cuvet up to 1.5 cm
(¾") below the rim with the filtered
sample and replace the cap. This the
true color.
• Place the blank into the holder
and ensure that the notch on
the cap is positioned securely
into the groove.
• Press ZERO and "SIP" will appear on the display.
• Wait for a few seconds and the dis-
play will show "-0.0-". Now the meter
is zeroed and ready for measure-
ment.
1.5 cm
1.5 cm
ZERO
• Remove the blank, insert the
apparent color cuvet into the
instrument and ensure that
the notch on the cap is posi-
tioned securely into the
groove.
• Press READ and "SIP" will appear on the display.
• The meter directly displays the value of apparent color.
• Remove the cuvet, insert the
true color cuvet into the in-
strument and ensure that
the notch on the cap is posi-
tioned securely into the
groove.
• Press READ and "SIP" will appear on the display.
• The meter directly displays concentration in color units of
true color on the Liquid Crystal Display.
INTERFERENCES
There are no known interferences for this method.
The instruction listed below should be carefully followed
during testing to ensure best accuracy.
• Do not touch the cuvet walls with hands.
• In order to maintain the same conditions during the
zeroing and the measuring phases, it is necessary to
close the cuvet to prevent any contamination.
• Do not let the test sample stand too long after reagent
is added or accuracy will be lost.
• Whenever the cuvet is placed into the measurement cell,
it must be completely free of fingerprints, oil or dirt.
Wipe it thoroughly with
HI 731318
or a lint-free cloth
prior to insertion.
• It is important that the sample does not contain any
debris. This would corrupt the readings.
• It is possible to take multiple readings in a row, but it
is recommended that a zero reading be taken for each
sample and that the same cuvet is used for zeroing and
measurement.
• It is important to discard the sample immediately after
the reading is taken because the glass might become
permanently stained.
• Shaking the cuvet can generate bubbles in the sample,
causing higher readings. To obtain accurate measure-
ments, remove such bubbles by swirling or by gently
tapping the vial.
• All the reaction times reported in this manual are
referred to 20°C (68°F). As a general rule of thumb,
they should be doubled at 10°C (50°F) and halved at
30°C (86°F).
TIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
TIPS FOR AN ACCURATE
MEASUREMENT
MEASUREMENT
MEASUREMENT
MEASUREMENT
MEASUREMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENT
BATTERY REPLACEMENT
Battery replacement must only take place in a non-hazard-
ous area using a 9V alkaline battery.
Simply slide off the battery cover on the back of the meter.
Detach the battery from the terminals and attach a fresh
9V battery while paying attention to the correct polarity.
Replace the battery and the cover.
9V
SLIDE
OFF
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environ-
ment in which they are used.
Operation of these instruments in residential area could cause unacceptable interferences
to radio and TV equipments, requiring the operator to take all necessary steps to correct
interferences.
Any variation introduced by the user to the supplied equipment may degrade the
instruments' EMC performance.
To avoid damages or burns, do not perform any measurement in microwave ovens.
ACCESSORIES
ACCESSORIES
ACCESSORIES
ACCESSORIES
ACCESSORIES
OTHER ACCESSORIES
HI 710009
Blue rubber boot
HI 710010
Orange rubber boot
HI 721310
9V battery (10 pcs)
HI 731318
Tissue for wiping cuvets (4 pcs)
HI 731321
Glass cuvets (4 pcs)
HI 731325
Caps for cuvets (4 pcs)
HI 93703-50
Cuvets cleaning solution (230 mL).
CE DECLARATION
CE DECLARATION
CE DECLARATION
CE DECLARATION
CE DECLARATION
OF CONFORMITY
OF CONFORMITY
OF CONFORMITY
OF CONFORMITY
OF CONFORMITY
IST93727R2
01/00
PRINTED IN PORTUGAL
