Hanna Instruments HI 993310, Instruction Manual, Page: 7 / 10

7
ORNAMENTAL PLANTS
AND FLOWERS
IDEAL VALUES
Amaranthus
Anthurium
Azalea
Begonia
Chrysanthemum
Croton
Cyclamen
Dahlia
Dieffenbachia
Dracaena
Euphorbia
Ficus
Gerbera
Kalanchoe
Lilium
Orchid
Pelargonium
Peperomia
Philodendron
Rose
Saintpaulia
Violet
0.4-0.6
0.2-0.4
0.3-0.5
0.3-0.6
0.4-0.7
0.2-0.4
0.4-0.6
0.4-0.5
0.4-0.6
0.2-0.4
0.4-0.6
0.4-0.7
0.4-0.6
0.2-0.5
0.3-0.6
0.2-0.4
0.2-0.4
0.3-0.5
0.4-0.6
0.2-0.5
0.3-0.5
0.2-0.4
LAWN IDEAL VALUES
Lawn
0.1-0.4
Oat
Potato
Pepper
Pea
Tomato
Soybean
Spinach 0.2-0.4
0.2-0.5
0.2-0.4
0.2-0.3
0.2-0.6
0.2-0.3
0.2-0.4
Tobbaco 0.2-0.4
14
C
ON
OFF
2
+
CALIBRATION
m S
• Press the ON/OFF button to turn the meter on, and then press
"C" button to enter in Water Conductivity mode.
• Wait for a couple of minutes for thermal equilibrium to be
reached.
• Turn the calibration knob until the display shows the conductivity
value of the calibration solutions at 25°C (12.88 mS/cm).
• All subsequent measurements will be compensated to 25°C (77°F).
• The calibration is now complete and the instrument is ready for
use.
The instrument should be recalibrated at least once a month, or
when the probe or battery is changed.
Note : For more accurate results, it is advisable to use a calibration
solution close to the range to be measured. See the accessories
on page 9 for a selection of conductivity solutions.
PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE PROBE MAINTENANCE
HI 76305 HI 76305 HI 76305 HI 76305 HI 76305 probe: Clean the tip with a fine sand paper prior to each
measurement. After use dry the probe with a cloth.
HI 76304
HI 76304
HI 76304 HI 76304
HI 76304 probe: Rinse with tap water after a series of measure-
ments. If a more thorough cleaning is required, clean the probe with
a dry cloth.
After cleaning the probe, recalibrate the instrument.