26
Compensation Coefficient
(Linear temperature compensation only)
The temperature coefficient is a factor used to express the rate a solution’s conductivity increases with an
increase in temperature and is expressed as a % increase in conductivity, for a temperature change of 1 °C. The
coefficient differs for different binary solutions. For typical aqueous dilute salt mixtures, 1.9 %/°C is used.
Ultrapure water is 5.5 %/°C.
To set the compensation coefficient:
• Use
or
to highlight the
Temperature option.
• Press
and then use
or
to highlight
the
Compensation Coefficient option.
• Press
and set the desired compensation coefficient
using
or
to increase/decrease the value.
• Press
to save the current value or press
to
cancel operation.
Calibration
Cell Constant
The conductivity probe can be calibrated using the conductivity standards or by entering the cell constant of the
probe by the user.
Using standard solutions:
The probe and the meter can be calibrated with a single standard or with multiple standards (up to four points),
choosing from 6 Hanna standards (84 µS/cm, 1413 µS/cm, 5.0 mS/cm,12.88 mS/cm, 80.0 mS/cm,
111.8 mS/cm) or using the custom standards. Multiple point calibrations are used to increase accuracy when
measurements are made over an extended range. Choose standards that are in the sample measurement range of
interest. Use only one standard at each measurement range.
e
g
n
a
R
t
n
e
m
e
r
u
s
a
e
M
s
d
r
a
d
n
a
t
S
n
o
it
a
r
b
il
a
C
m
c
/
S
µ
0
0
2
-
0
m
c
/
S
µ
0
0
.
4
8
m
c
/
S
µ
0
0
0
2
-
0
0
2
m
c
/
S
µ
3
1
4
1
m
c
/
S
m
0
2
-
2
m
c
/
S
m
8
8
.
2
1
r
o
0
0
0
.
5
m
c
/
S
m
0
0
0
1
-
0
2
m
c
/
S
m
8
.
1
1
1
r
o
0
.
0
8