Instruction Manual HI 83900 Suction Lysimeter www.hannainst.
Dear Customer, Thank you for choosing a HANNA instruments® product. Please read this instruction manual carefully before using the equipment. It will provide you with the necessary information for a correct use. For additional technical information, do not hesitate to e-mail us at tech@hannainst.com or see the back cover for our worldwide contact list. PRELIMINARY EXAMINATION TABLE OF CONTENTS ORDERING INFORMATION PRELIMINARY EXAMINATION...................................................................
GENERAL USE / OPERATING PRINCIPLES FUNCTIONAL DESCRIPTION The HI 83900 suction lysimeter is built with a porous ceramic cap connected to a transparent tube for soil solution extraction. A rubber capillary is inserted in the tube passing through a rubber cap and reaching the ceramic tip. The lysimeter is an ideal tool for collecting soil solution samples and then perform quantitative chemical analysis.
OPERATIONAL GUIDE INSTALLATION Location Assemble the unit by inserting the rubber capillary in the sampler tube and closing with the rubber cap. Check that the rubber capillary is into the ceramic tip, then remove the plastic bag from the ceramic part and follow the activation procedure explained below. Important: NEVER TOUCH THE CERAMIC SENSITIVE PART WITH YOUR FINGER BEFORE AND DURING THE ACTIVATION PROCESS.
SAMPLE EXTRACTION SUGGESTIONS FOR SAMPLE ANALYSIS Warning! Never operate the lysimeter in the following conditions: • immediately after irrigation, otherwise the extracted solution will be the irrigation water and not the soil solution. • before the irrigation water reaches the depth of the ceramic tip, because necessary tension can never be obtained if the sensitive tip is dry. • Sample extraction needs a vacuum of approximately -60 cb (centibar) to be created inside the sampler tube.
MAINTENANCE AND STORAGE TROUBLESHOOTING The lysimeter should remain installed for all the crop season, and the ceramic cap must be sterilized against fungi and algae at least every two months, without removing it from the ground. • Fill the syringe with the supplied cleaning solution (approximately 10 mL). • With the finger clamp open, inject the solution into the lysimeter tube for about 10 seconds. Draw up the rest of the solution and dispose of it.
SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: Tel. (21) 4584.2941 • Fax (21) 4584.2942 Japan: Tel. (03) 3258.9565 • Fax (03) 3258.9567 Korea: Tel. (02) 2278.5147 • Fax (02) 2264.1729 Malaysia: Tel. (603) 5638.9940 • Fax (603) 5638.9829 Singapore: Tel. 6296.
