User Guide

2726
E.g. To enter 1000 µS/cm
Press %TC to
show "1413 µS"
Press 1
Press 0
Press 0
Press 0
Press the ENTER key.
• The stored value will
be displayed on the
primary LCD and the
"2.0" value as %TC
will blink on the sec-
ondary LCD to
prompt the user to
enter the desired
temperature coeffi-
cient value.
• Use the numerical keys to enter the de-
sired value and press the ENTER key.
E.g. to enter 2.5%
Press 2
Press .
Press 5
Press the ENTER key.
%TC
.
FTR
1
ATC
MTC
0
ATC
MTC
0
ATC
MTC
0
ENTER
CONDUCTIVITY
CAL
%TC
S
µ
CONDUCTIVITY
CAL
%TC
S
µ
°F
2
%TC
.
5
ENTER
MANUAL SELECTION OF THE BUFFER
THROUGH THE KEYBOARD
If the buffer values are entered manually, the
temperature coefficient can be set to a differ-
ent value than 1.9%.
• Pour a small quantity of the
chosen conductivity solution
into a plastic beaker.
• Immerse the HI7686 probe
into the solution submerging
the holes of the sleeve into
the liquid. Immerse the
HI 7669/2W temperature
probe as close as possible
to the conductivity probe.
Wait for 2 or 3 minutes for
the thermal equilibrium.
• With a standard
buffer value blinking
on the display ex-
pressed in mS, en-
ter the desired buffer
value by pressing the
numerical keys and
then press the EN-
TER key. The stored
value in mS will be
displayed on the pri-
mary LCD.
If the desired buffer
value is expressed
in µS, press the
%TC key first to
select one of the
two memorized values expressed in µS,
then enter the desired buffer value by
pressing the numerical keys followed by
the ENTER key. The stored value in µS
will be displayed on the primary LCD.
CONDUCTIVITY
CAL
%TC
S
m
%TC
.
CONDUCTIVITY
CAL
%TC
S
µ