Hanna Instruments HI 93703 - Manual (Page 8)

8
To prepare the instrument for taking
measurements, first install the batteries (see
Battery Replacement section on page 20) and
then turn the instrument on.
To maximize battery-life, the display is
automatically switched off after 5-minutes of
non-use. To reactivate the display, 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.
• The meter will carry
out a battery test show-
ing in percentage the
battery life left.
• When the LCD dis-
plays “----” the meter
is ready to measure.
• Fill a clean cuvet up to one quar-
ter inch (0.5 cm) from its rim with
the thoroughly agitated sample.
• Allow sufficient time for bubbles
to escape before securing the cap.
Note: do not overtighten the cap.
LOGGING
MICROPROCESSOR
TURBIDITY METER
LOGGING
MICROPROCESSOR
TURBIDITY METER
HI 93703-11
VIEW VIEW
STO STO
CLR CLR
GLP GLP
CAL CAL DATE DATE
READ READ
ALT ALT
OFF
ON
1/4“ 0.5
cm
% ba
98
OPERATIONAL GUIDE
LOG LOBAT
TIME
DATE %
188
17
• If "ERR1" appearson
the LCD, please check
the standard solution.
• After approximately 30 seconds the meter
will display 10.00, prompting the user to
place the 10.00 FTU standard solution in
the cuvet holder.
• Place the 10.00 FTU
standard in the holder press CAL, SIP and
CL will start blinking
• After approximately
30 seconds the meter
will display 500, asking the user to place
the 500 FTU buffer
solution in the cuvet
holder.
NOTE: At this point the
user can save the two point calibration
setup by pressing ALT & CAL buttons,
leaving the calibration mode.
To perform a three point
calibration, place the 500
FTU standard solution in the
cuvet holder.
• Press CAL, SIP and
CL will start blinking
10.00
cl
sip
cl
500
cl
sip
cl
err1