Hanna Instruments HI 983301N User Manual
Instruction Manual
&
HI 983302N HI 983301N
HI 983301N/5
On-line, Waterproof
EC-TDS meter with large LCD
www.hannainst.com
WARRANTY
EC and TDS are warranted for two years against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions. The probes are
warranted for a period of six months. This warranty is limited to
repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed
maintenance are not covered.
If service is required, contact the dealer from whom you purchased the
instrument. If under warranty, report the model number, date of purchase, serial number and the nature of the failure. If the repair is not
covered by the warranty, you will be notified of the charges incurred. If
the instrument is to be returned to Hanna Instruments, first obtain a
Returned Goods Authorization Number from the Customer Service department and then send it with shipment costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protection.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner.
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for a correct
operation. Please read it carefully before using the meter.
If you need additional technical information, do not hesitate
to e-mail us at tech@hannainst.com.
These instruments are in compliance with the directives.
PRELIMINARY EXAMINATION
Remove the instrument from the packing material and
examine it carefully. If any damage has occurred during
shipment, immediately notify your Dealer or the nearest
Hanna Customer Service Center.
The meters are supplied with:
• HI 7632 probe (HI 983302N)
• HI 7634 probe (HI 983301N and HI 983301N/5)
• 1413 µS/cm calibration solution (20 mL) for HI 983302N
• 1500 ppm calibration solution (20 mL) for HI 983301N
• 1382 ppm calibration solution (20 mL) for HI 983301N/5
• Calibration screwdriver
• 12 Vdc power adapter and instructions
Note: Conserve all packing material until the instrument
has been observed to function correctly. Any defective
item must be returned in its original packing.
GENERAL DESCRIPTION
EC and TDS are instruments specially designed to meet the needs of growers in greenhouses hydroponic
applications. They are equipped with a large display for an
easy reading also from distance.
You can simply hang the meter right above the sample to
be tested for continuous measurement and the unit will run
without interruption on 12 Vdc power supply.
The housing has been completely sealed against vapors and
humidity.
The meters are supplied with a probe that automatically
compensates for the temperature variation. The probe is
easy to clean and requires little maintenance.
Measurements are highly accurate and the meters can be
calibrated at one point.
In addition, the two TDS use a specially
devised formula which perfectly reflects the needs of growers.
In fact, the TDS factor of the HI 983301N model is 0.7
while for the HI 983301N/5 is 0.5.
FUNCTIONAL DESCRIPTION
1. Molded eye
2. Calibration trimmer
3. Probe (HI 7632 or HI 7634, depeding on model)
4. 12 Vdc power adapter
5. Power supply connector
6. Liquid Crystal Display (LCD)
SPECIFICATIONS
EC – HI 983302N
Range 0.00 to 9.99 mS/cm
Resolution 0.01 mS/cm
Accuracy (@ 25°C/77°F) ±2% f.s.
Typical EMC Deviation ±2% f.s.
Temp.Compensation Automatic
5 to 50°C (41 to 122°F)
Calibration Manual with one trimmer
Probe HI 7632 (fixed)
Casing IP54
Power supply 12 Vdc adapter (included)
Dimensions 86 x 110 x 43 mm (3.4 x 4.3 x 1.7”)
Weight 215 g (7.6 oz)
TDS – HI 983301N & HI 983301N/5
Range 0 to 1990 mg/L (ppm)
Resolution 10 mg/L (ppm)
Accuracy (@ 25°C/77°F) ±2% f.s.
Typical EMC Deviation ±2% f.s.
TDS Factor 0.7 (HI 983301N)
0.5 (HI 983301N/5)
Temp.Compensation Automatic
5 to 50°C (41 to 122°F)
Calibration Manual with one trimmer
Probe HI 7634 (fixed)
Casing IP54
Power supply 12 Vdc adapter (included)
Dimensions 86 x 110 x 43 mm (3.4 x 4.3 x 1.7”)
Weight 215 g (7.6 oz)
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
OPERATIONAL GUIDE
CALIBRATION ACCESSORIES
CE DECLARATION OF CONFORMITY
TAKING MEASUREMENTS
• Turn the meter on by connecting the 12 Vdc power
adapter to the meter and to the mains.
• Immerse the tip (4 cm / 1½”)
of the probe in the sample.
Note: In order not to affect the
accuracy of measurements,
it is important that the
probe body does not touch
nor stand close to the side
walls of the vessel. The tip
may lay on the bottom of
the beaker.
• The LCD will show the EC or
TDS value. Any initial variation of reading may be due to
temperature compensation and
to the fact that the probe is
adjusting itself to the new
sample. Allow the reading to
stabilize and the meter will
start continuous monitoring.
PROBE MAINTENANCE
To minimize clogging and provide longer life for the probe,
it is recommended to clean it often or at least once a month.
• Immerse the tip of the probe in HI 7061 cleaning
solution for one hour or clean it with detergents used to
wash irrigation pipelines and fertilizer vessels.
• If a more thorough cleaning is required, brush the
metal pins with very fine sandpaper.
• After cleaning or before storing the probe, rinse it with
tap water.
For the greatest accuracy, frequent calibration of the instrument is recommended.
• Pour a small quantity of the
indicated calibration solution in
a beaker:
1413 µS/cm for HI 983302N,
1500 ppm for HI 983301N or
1382 ppm for HI 983301N/5.
If possible, use plastic beakers to minimize any EMC
interference.
• Immerse the EC or TDS probe in the
solution, making sure that metal pins
are completely submerged.
Note: the probe should be submerged ap-
proximately 4 cm (1½”) in the solution
and it does not touch nor stand close
to the side walls of the beaker. The
tip can lay on the bottom of the
beaker.
• Wait for a couple of minutes for thermal equilibrium to
be reached.
• Tap the probe gently on the bottom, then shake it
while rotating to make sure no air bubbles have
remained trapped.
• Adjust the calibration trimmer
with the supplied screwdriver
until the display shows 1.41
(mS) for HI 983302N, 1500
(ppm) for HI 983301N or 1380
(ppm) for HI 983301N/5.
• The calibration is now complete and the instrument is
ready for use.
The meters should be recalibrated at least once a month
and after performing probe cleaning procedure.
HI 7632 * Conductivity probe with built-in temperature
sensor and 2 m (6.6’) cable
HI 7634 * Conductivity probe with built-in temperature
sensor and 2 m (6.6’) cable
HI 70031P 1413 µS/cm calibration solution, 20 mL sachet
(25 pcs)
HI 70442P 1500 ppm calibration solution, 20 mL sachet
(25 pcs)
HI 70032P 1382 ppm calibration solution, 20 mL sachet
(25 pcs)
HI 7031L 1413 µS/cm calibration solution, 500 mL bottle
HI 70442L 1500 ppm calibration solution, 500 mL bottle
HI 7032L 1382 ppm calibration solution, 500 mL bottle
HI 7061L Electrode cleaning solution, 500 mL bottle
HI 710005 12 Vdc power adapter, US plug
HI 710006 12 Vdc power adapter, European plug
HI 710012 12 Vdc power adapter, Australian plug
HI 710013 12 Vdc power adapter, Southern Africa plug
HI 710014 12 Vdc power adapter, UK plug
* To be replaced by authorized technical personnel only.
Recommendations for Users
Before using these products, make sure that they are entirely suitable
for the environment in which they are used.
Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment.
The metal band at the end of the probe is sensitive to electrostatic discharges. Avoid touching this metal band at all times.
During operation, ESD wrist straps should be worn to avoid possible damage to the probe by electrostatic discharges.
Any variation introduced by the user to the supplied equipment may degrade the instrument’s EMC performance.
To avoid electrical shock, do not use these instruments when voltages at
the measurement surface exceed 24 Vac or 60 Vdc.
Use plastic beakers to minimize any EMC interferences.
To avoid damages or burns, do not perform any measurement in micro-
wave ovens.
ISECTDSGR R2 05/05
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