Справочник Пользователя для Hanna Instruments hi 9032
21
20
INITIAL PREPARATION
There is a choice of 4 memorized buffers.
Choose the solution whose conductivity value
is closer to the value of the sample measured:
Choose the solution whose conductivity value
is closer to the value of the sample measured:
•
84 µS/cm @ 25°C using HI 7033 (or
HI 8033) conductivity solution
HI 8033) conductivity solution
•
1413 µS/cm @25°C using HI 7031 (or
HI 8031) conductivity solution
HI 8031) conductivity solution
•
12.88 mS/cm @ 25°C using HI7030 (or
HI 8030) conductivity solution
HI 8030) conductivity solution
•
80 mS/cm @ 25°C using HI 7034 (or
HI 8034) conductivity solution.
HI 8034) conductivity solution.
Rinse the probe thoroughly in distilled water
or if possible with a small amount of the
calibration solution. This is to minimize con-
tamination of the calibration solution and se-
cure higher accuracy.
or if possible with a small amount of the
calibration solution. This is to minimize con-
tamination of the calibration solution and se-
cure higher accuracy.
When possible, use plastic beakers to mini-
mize any EMC interferences.
mize any EMC interferences.
PROCEDURE WITH ATC
•
Press the COND key to enter the conduc-
tivity mode, and the "CONDUCTIVITY"
symbol will appear on the large display.
tivity mode, and the "CONDUCTIVITY"
symbol will appear on the large display.
•
Leave the conductivity probe to dry in the
air.
air.
•
Using a small screwdriver adjust the OFF-
SET trimmer on the rear panel until the
display shows "0.0 µS".
SET trimmer on the rear panel until the
display shows "0.0 µS".
CONDUCTIVITY CALIBRATION
CONDUCTIVITY
%TC
S
m
Cond.
7
CONDUCTIVITY
%TC
S
µ
•
If further measurements are desired, rinse the
probe and test the next sample.
probe and test the next sample.
TAKING TEMPERATURE MEASUREMENTS
Taking a temperature measurement is very easy.
Connect the temperature probe
to the instrument and turn the
meter on by pressing the ON key.
to the instrument and turn the
meter on by pressing the ON key.
Dip the liquid/general purpose
temperature probe HI7669/2W
into the sample and allow the
reading on the TEMP. display
to stabilize (1 or 2 minutes).
temperature probe HI7669/2W
into the sample and allow the
reading on the TEMP. display
to stabilize (1 or 2 minutes).
Note: If the temperature probe is not con-
nected when the meter is turned on,
the instrument will automatically de-
fault a temperature of 25.0°C (or 77.0 °F)
on the TEMP.
LCD with a
blinking deci-
mal point.
the instrument will automatically de-
fault a temperature of 25.0°C (or 77.0 °F)
on the TEMP.
LCD with a
blinking deci-
mal point.
AFTER MEASUREMENTS
When all measurements are
completed the meter should be
turned off by pressing the OFF
key and the probe cleaned.
completed the meter should be
turned off by pressing the OFF
key and the probe cleaned.
See page 59 for the probe clean-
ing and maintenance procedure.
ing and maintenance procedure.
Note: The probe body and sleeve are very
susceptible to damage due to tempera-
tures exceeding 50°C (122°F). If the
probe is exposed to high temperature,
the bond between the rings and the
probe body may become impaired and
the probe will not function properly, in
which case it has to be replaced.
tures exceeding 50°C (122°F). If the
probe is exposed to high temperature,
the bond between the rings and the
probe body may become impaired and
the probe will not function properly, in
which case it has to be replaced.
ON
OFF