Hanna Instruments HI 993310 - Manual (Page 2)

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PRELIMINARY EXAMINATION
GENERAL DESCRIPTION
The soil activity, the conductivity of nutritive solutions, irrigation water
and saturated soil-paste are important parameters for growers and
horticulturists.
With HI 993310 it is possible to directly measure, in a quick and simple
way, the soil activity in the ground as well as the conductivity of irrigation
water, nutritive solutions and saturated soil-paste.
The meter is supplied with two probes: HI 76305 with stainless steel conic
tip for direct soil measurements, and HI 76304 for fertilizer enriched
solutions.
The meter allows readings in two different scales and is provided with two
LED’s for indicating which parameter is being tested.
HI 993310 is also equipped with an alarm LED that automatically lights
up if the soil is too dry, or nutritive substances are lacking.
Calibration for conductivity measurements can be performed with a simple
knob located on the front of the meter, and, since the conductivity and
the soil activity are correlated parameters, the soil activity measurements
are calibrated through the conductivity calibration.
Conductivity measurements are influenced by temperature, while the soil
activity depends on the soil texture and its hydric property; both the
supplied probes incorporate a temperature sensor which allows the meter
to automatically compensate for the temperature variations.
HI 993310 comes in a rugged splashproof case suitable to outdoor
measurements.
Remove the instrument from the packing material and examine it
carefully to make sure that no damage has occurred during shipping.
If there is any noticeable damage, notify your Dealer or the nearest
Hanna office immediately.
The meter is supplied with:
• HI 76304 plastic body, conductivity probe with built-in tempera-
ture sensor and 1 m (3.3’) cable
• HI 76305 probe for direct soil measurements with stainless steel
conic tip, built-in temperature sensor and 1 m (3.3’) cable
• one 9V battery & Instruction manual
Note: Save all packing materials until you are sure that the
instrument functions correctly. Any damaged or defective item
must be returned in its original packing materials together
with the supplied accessories.
Dear Customer,
Thank you for choosing a Hanna product.
Please read this instruction manual carefully before using the meter.
This manual will provide you with the necessary information for correct
use of the instrument, as well as a more precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail
us at [email protected].
This instrument is in compliance with the
directives.
PRELIMINARY EXAMINATION ...................................................... 3
GENERAL DESCRIPTION .............................................................. 3
SOIL ACTIVITY ........................................................................... 4
WATER CONDUCTIVITY ................................................................ 8
FUNCTIONAL DESCRIPTION ...................................................... 12
SPECIFICATIONS ....................................................................... 13
CALIBRATION ........................................................................... 14
OPERATIONAL GUIDE ............................................................... 15
PROBE MAINTENANCE .............................................................. 16
BATTERY REPLACEMENT ............................................................ 17
ACCESSORIES ........................................................................... 18
TABLE OF CONTENTS
All Hanna Instruments meters are warranted for two years against
defects in workmanship and materials when used for their intended
purpose and maintained according to instructions. The electrodes and
the probes are warranted for a period of six months. This warranty
is limited to repair or replacement free of charge.
Damages due to accidents, 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 depart-
ment and then send it with shipping costs prepaid. When shipping any
instrument, make sure it is properly packaged for complete protection.
WARRANTY