Hanna Instruments HI 86301 - Manual (Page 2)

ACCESSORIES
HI 7632D/1 Conductivity probe, HR, with built-in tempera-
ture sensor, DIN connector and 1 m (3.3’) cable
HI 7634D/1 Conductivity probe, LR, with built-in tempera-
ture sensor, DIN connector and 1 m (3.3’) cable
HI 70031P 1413 μS/cm solution, 20 mL sachet (25 pcs)
HI 7031M 1413 μS/cm solution, 230 mL bottle
HI 7031L 1413 μS/cm solution, 500 mL bottle
HI 70032P 1382 ppm solution, 20 mL sachet (25 pcs)
HI 7032M 1382 ppm solution, 230 mL bottle
HI 7032L 1382 ppm solution, 500 mL bottle
HI 70039P 5.00 mS/cm solution, 20 mL sachet (25 pcs)
HI 7039M 5.00 mS/cm solution, 230 mL bottle
HI 7039L 5.00 mS/cm solution, 500 mL bottle
HI 7061M Cleaning solution, 230 mL bottle
HI 7061L Cleaning solution, 500 mL bottle
HI 731326 Calibration screwdriver (20 pcs)
PROBE MAINTENANCE
It is recommended to clean the probe at least once a month,
by following this procedure:
• Immerse the tip of the probe in the HI 7061 cleaning
solution for half an hour.
• If a more thorough cleaning is required, brush the metal
pins with very fine sandpaper.
• After cleaning, rinse the probe with tap water and recalibrate
the instrument.
CE DECLARATION OF CONFORMITY
IST86301 05/05
BATTERY REPLACEMENT
When the battery becomes weak the meters will display an
additional blinking decimal point.
When the low battery indicator ap-
pears, only a few hours of battery life
are left.
In addition, these instruments are provided with BEPS (Battery
Error Prevention System) that automatically turns the meter off
when the battery level is too low to ensure reliable readings.
It is recommended to replace the battery immediately.
Battery replacement must only take place in a nonhazardous
area using a 9V alkaline battery.
Unscrew the three screws on
the rear of the meter, remove
the battery compartment cover
and replace the 9V battery
with a new one.
Make sure the battery con-
tacts are tight and secure
before replacing the cover.
TAKING MEASUREMENTS
• Each meter is supplied complete with a 9V alkaline battery.
Remove the battery compartment cover on the rear of the
meter and install the battery while paying attention to the
correct polarity (see also “Battery Replacement” section).
• Connect the probe to the DIN plug on the top of the meter,
and switch the instrument on by pressing the ON/OFF
button.
• Immerse the probe into the solution to be tested. For best
accuracy, the probe should not touch or stand close to the
vessel’s walls or bottom. If possible, use plastic beakers to
minimize any EMC interference.
• Tap the probe gently on the bottom and shake it, to make
sure no air bubbles have remained trapped inside.
• Allow the reading to stabilize. The LCD will show the EC or TDS
value automatically compensated for temperature effects.
CALIBRATION
• Pour a small quantity of the proper calibration solution in
a beaker (HI 7031 for HI 86303, HI 7032 for HI 86301 and
HI 86302, HI 7039 for HI 86304). If possible, use plastic
beakers to minimize any EMC interference.
• The calibration is a manual, 1-point procedure through
trimmer. To access the calibration trimmer, remove the
battery compartment cover on the rear of the meter.
• Turn the meter on and immerse the probe in the calibra-
tion solution, making sure that the metal pins are completely
submerged and the probe body does not touch nor stand
close to the side walls of the beaker.
• Tap the probe gently on the bottom and shake it, to make
sure no air bubbles have remained trapped inside.
• Wait for a couple of minutes
for thermal equilibrium to be
reached and the temperature
to be compensated, then ad-
just the calibration trimmer with
the supplied screwdriver until
the display shows the calibra-
tion solution value.
Calibration is now complete.
Recommendations for Users
Before using these products, make sure that they are entirely suitable for the environment in
which it is used. Operation of these instruments in residential areas could cause unacceptable
interferences to radio and TV equipment. Any variation introduced by the user to the supplied
equipment may degrade the instruments’ EMC performance. To avoid electrical shock, do not
use this instrument when voltage at the measurement surface exceeds 24 Vac or 60 Vdc. To
avoid damage or burns, do not perform any measurement in microwave ovens.