15
14
• Insert the cuvette with
the HI 93703-10
AMCO-AEPA-1 stan-
dard @10 FTU* into
the measurement cell
and press the CAL key
again.
• After the second cali-
bration point (10.00
FTU*) has been ac-
cepted, the meter will
display “500”, asking
for the 500 FTU* solu-
tion to be placed in
the cuvet holder.
Note: At this point the user can exit the
calibration mode and save the two-point
calibration by pressing READ.
To perform a three-point calibration, place the
500 FTU* standard solution in the cuvet holder.
• Press CAL: “SIP” and
“CL” will start blink-
ing.
• After approximately
30 seconds, the dis-
play will show "----".
Now the meter is calibrated and ready for use.
Note: If "ERR1" is displayed, the calibration
data are maintained
• To confirm the dis-
played data values
and to go to the next
step, press the CAL
key once. A blinking
"ZERO" message will
appear.
• Take the HI 93703-0
bottle containing the
ZERO FTU* Standard
(or turbidity-free dilu-
tion water) and fill the
m e a s u r e m e n t c u -
vette.
Note: In order to minimize any error intro-
duced by the cuvette, it is recommended
to use, during calibration, the same cu-
vette you are going to use to perform the
measurement.
• Insert the cuvette with
the HI 93703-0 @
ZERO FTU* standard
solution (or turbidity-
free dilution water)
into the measurement
cell and press the
CAL key. A blinking
"SIP" message indi-
cates that the instru-
ment is performing
the measurement. Af-
ter approximately 50
seconds the instru-
ment will ask for the
HI 93703-10 standard
solution @10 FTU*
by displaying "10.0".
• Repeat the same procedure with HI 93703-
10 @ 10FTU * standard solution.
sip
cl
500
cl
* 1 FTU = 1 NTU