Hanna Instruments HI 83900-30 User Manual
Instruction Manual
HI 83900
Suction Lysimeter
www.hannainst.com
1
Dear Customer,
Thank you for choosing a HANNA instruments
Please read this instruction manual carefully before using the equipment. It will pro-
vide 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.
®
product.
PRELIMINARY EXAMINATION
Remove the equipment from the packing material and examine it carefully to make
sure that no damage has occurred during shipping. If there is any noticeable damage, immediately notify your dealer.
Each kit includes:
• 1 x sampler tube ending with porous ceramic tip
• 1 x capillary rubber tube with rubber cap and finger clamp
• 1 x cleaning solution starter kit (120 mL bottle)
• 1 x 30 mL syringe
• instruction manual
Note Save all packing materials until you are sure that the equipment functions
correctly. Any damaged or defective items must be returned in their original
packing materials together with the supplied accessories.
TABLE OF CONTENTS
PRELIMINARY EXAMINATION...................................................................... 3
ORDERING INFORMATION ....................................................................... 3
WARRANTY .............................................................................................. 3
GENERAL USE/OPERATING PRINCIPLES ..................................................... 4
FUNCTIONAL DESCRIPTION ...................................................................... 5
OPERATIONAL GUIDE ............................................................................... 6
• ACTIVATION ........................................................................................6
• INSTALLATION...................................................................................... 7
• SAMPLE EXTRACTION ........................................................................... 8
SUGGESTIONS FOR SAMPLE ANALYSIS....................................................... 9
MAINTENANCE AND STORAGE ............................................................... 10
TROUBLESHOOTING............................................................................... 11
Hanna Instruments reserves the right to modify the design,
construction and appearance of its products without advance notice.
ORDERING INFORMATION
HI 83900-30: Suction lysimeter, 30 cm (0.98’) tube
HI 83900-60: Suction lysimeter, 60 cm (1.97’) tube
HI 83900-90: Suction lysimeter, 90 cm (2.95’) tube
HI 83900-25: Cleaning solution replacement kit, 500 mL bottle
WARRANTY
This equipment is guaranteed for two 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. 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 shipping costs prepaid.
When shipping any instrument, make sure it is properly packaged for complete protection.
2 3
GENERAL USE / OPERATING PRINCIPLES
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. In this way the operator can easily monitor the level of
fertilization nutrients, such as ammonia, nitrate, phosphorous and potassium.
The ceramic tip of the lysimeter can be used in all types of soil, and it is made of
sinterized material that does not react with nutrient elements. The soil solution, therefore, is not affected by the chemical composition of the ceramic cap, and the test
results are always precise and reliable.
FUNCTIONAL DESCRIPTION
Use our chemical test kits or photometers for accurate analysis (see the HANNA
instruments
®
general catalog or visit our web site at www.hannainst.com for a
complete list of equipments, reagents and accessories).
The HI 83900 allows to extract a solution from the soil by creating a vacuum (nega-
tive pressure or suction) inside the sampler tube, that exceeds the soil water tension.
This will establish an hydraulic gradient for the solution to flow through the porous
ceramic cap and into the lysimeter tube. Typically, a vacuum of about -60 cb (centibar) should be drawn.
For better monitoring the soil solution composition throughout an entire growth period of crops, at least two lysimeters should be installed in the root zone of a representative plant, one at the upper part and the other in the lower part of the root zone.
For better accuracy and repeatability of results, it is recommended to replicate the
above described installation in at least two more locations.
1. Rubber cap
2. Soil solution sampler tube
3. Porous ceramic tip
4. 30 mL syringe (pump)
5. Rubber suction capillary
6. Finger clamp
4 5
Loading...