Hanna Instruments HI98330 Manuale utente
Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA
www.hannainst.com
INSTRUCTION MANUAL
HI98330
Nutrient Tester
EC/TDS
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner,
Hanna Instruments Inc., Woonsocket, Rhode Island, 02895, USA.
Hanna Instruments reserves the right to modify the design, construction, or appearance of its products without advance notice.
Dear Customer,
Thank you for choosing a Hanna Instruments®product.
Please read this instruction manual carefully before using this instrument as it provides the necessary
information for correct use of this instrument as well as a precise idea of its versatility.
Visit www.hannainst.com for more information about Hanna Instruments and our products.
TABLE OF CONTENTS
1. Preliminary Examination .................................................................................................................3
2. General Description & Intended Use................................................................................................3
3. Specifications....................................................................................................................................3
4. Main Features...................................................................................................................................4
5. Operational Guidelines ....................................................................................................................4
5.1. Remove Battery Film ....................................................................................................................4
5.2. EC/TDS Measurement...................................................................................................................4
5.3. Battery Replacement.....................................................................................................................5
6. Cleaning & Maintenance ..................................................................................................................5
7. Storage.............................................................................................................................................5
Certification ...........................................................................................................................................6
Recommendations for Users..................................................................................................................6
Warranty................................................................................................................................................6
3 Preliminary Examination
1. PRELIMINARY EXAMINATION
Remove the tester from the packing material and examine it carefully. For further assistance, please contact
Each HI98330 is supplied with quick reference guide with instrument quality certificate.
Note: Save all packing material until you are sure that the instrument works correctly. Any damaged or defective
item must be returned in its original packing material with the supplied accessories.
2. GENERAL DESCRIPTION & INTENDED USE
Ideal for hydroponics and agriculture applications, the HI98330 GroLine®Nutrient Tester accurately measures the
electrical conductivity (EC) in mS/cm and the total dissolved solids (TDS) conversion in parts per million (ppm) of the
nutrients in water.
Suitable for plants that need a higher EC, the tester features an extended range up to 6.0 mS/cm (EC), 3000 ppm
(500 ppm scale), and 4200 ppm (700 ppm scale).
The IP67 waterproof rated and floating casing houses the EC graphite electrodes and temperature sensor, and
is suitable for stirring and testing simultaneously.
3. SPECIFICATIONS
EC
Range 0.2 to 6.0 mS/cm
Resolution 0.1 mS/cm (0.2 to 4.0 mS/cm)
0.25 mS/cm (4.0 to 6.0 mS/cm)
Accuracy ±4 % of reading ±1 resolution point
TDS
Range 100 to 3000 ppm (500 ppm scale)
140 to 4200 ppm (700 ppm scale)
Resolution
50 ppm (100 to 2000 ppm)
125 ppm (2000 to 3000 ppm)
70 ppm (140 to 2800 ppm)
175 ppm (2800 to 4200 ppm)
Accuracy ±4 % of reading ±1 resolution point
Calibration Factory calibrated
Probe Graphite electrodes in ABS+PC body
Temperature compensation Automatic from 5.0 to 50.0 °C (41.0 to 122.0 °F)
Battery type 3×1.5V AA alkaline
Battery life Approx. 3 years (10 measurements/day)
Measurement display 24 blue LEDs
Environment 0 to 50 °C (32 to 122 °F)
Dimensions 444 mm (17.48”)
Ø 30 mm (1.18”)
Weight with batteries 265 g (9.3 oz.)
Casing protection IP67, floating
Main Features 4
4. MAIN FEATURES
• IP67 waterproof and floating design
• No user calibration needed
• Rugged and doubles as a stirring stick
• Auto‑on when placed in nutrient water / Auto‑off set to 30 seconds
• Low‑battery warning
• Readings displayed by 24 brightly lit LED lights
• Conductivity scales and operational instructions printed on the tester body
• Easy to clean (detachable crown‑shaped cap)
5. OPERATIONAL GUIDELINES
5.1. REMOVE BATTERY FILM
1. Rotate the battery cap counter clockwise to remove the protective film.
2. Tightly screw the battery cap back on.
LED lights on the side light up along the conductivity scale (and back), and display battery level status:
42003000
6.0
100 % battery level
420300
0.6
10 % battery level
5.2. EC/TDS MEASUREMENT
Place the tester in nutrient water and stir.
LED lights on the side indicate measurement status as per examples given here:
22401600
3.2
reading not stable
22401600
3.2
reading stable
3.0
22401600
3.2
23801700
3.4
read value 3.3 mS/cm
Note: A change in conductivity level resets the auto-off timer. To take another
reading, simply remove the tester from water then place it back in the water.
140100
0.2
reading under range
42003000
6.0
reading over range
5 Cleaning & Maintenance
After approximately 3 years of use batteries require replacement. When the tester is placed in nutrient water
LED lights light up along the conductivity scale (and back), and display low‑battery warning:
420300
0.6
replace batteries
Users should replace the batteries before they run out as the accuracy of readings may decrease as the batteries
run out.
5.3. BATTERY REPLACEMENT
Do not mix different brands of batteries or old batteries with new ones.
To replace the batteries:
1. Rotate the battery cap counter clockwise to remove.
2. Take out the old batteries.
3. Insert the new batteries (1.5V AA type) with negative end (–) first.
4. Tightly screw the battery cap back on.
6. CLEANING & MAINTENANCE
Quickly rinse the tester after use to prevent build up of excess between the two graphite electrodes.
If a more thorough cleaning is required:
1. Rotate the crown‑shaped cap counter clockwise to remove.
2. Rinse under a stream of running tap water.
3.
Use a soft material (soft bristle brush) and soapy surfactant to thoroughly clean the space between the
electrodes.
4. Rinse and shake excess water off.
7. STORAGE
The tester should be stored dry and clean.
Certication 6
CERTIFICATION
All Hanna®instruments conform to the CE European Directives and UK Standards.
Disposal of Electrical & Electronic Equipment. The product should not be treated as household waste.
Instead, hand it over to the appropriate collection point for the recycling of electrical and electronic equipment,
which will conserve natural resources.
Disposal of waste batteries. This product contains battery, do not dispose of it with other household waste.
Hand it over to the appropriate collection point for recycling.
Ensuring proper product and battery disposal prevents potential negative consequences for the environment and
human health. For more information, contact your city, your local household waste disposal service, or the place
of purchase.
RECOMMENDATIONS FOR USERS
Before using Hanna products, make sure that they are entirely suitable for your specific application and for
the environment in which they are used. Any variation introduced by the user to the supplied equipment may
degrade the instrument’s performance. For your and the instrument’s safety do not use or store it in hazardous
environments.
WARRANTY
HI98330 is warranted for a period of six years against defects in workmanship and materials when used for their
intended purpose and maintained according to instructions. This warranty is limited to repair or replacement
free of charge. Damage due to accidents, misuse, tampering, or lack of prescribed maintenance is not covered.
If service is required, contact your local Hanna Instruments office. If under warranty, report the model number,
date of purchase, serial number, and the nature of the problem. 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 office, first obtain a Returned Goods Authorization (RGA)
number from the Technical Service department and then send it with shipping costs prepaid. When shipping
any instrument, make sure it is properly packaged for complete protection.
MAN98330 03/23
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