Hanna Instruments HI 83749 - Manual (Page 5)

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If protein instability is detected, a next test can help defining the right amount of bentonite to be
added for improving protein stability. It is important not to overdose bentonite, avoiding stripping
wine flavour, body, and significant loss of color, especially in young red wines. Moreover, adding only
the necessary amount of bentonite to obtain the desired protein stability is also costs saving.
Hanna is the first manufacturer of turbidity instruments that has decided to add the unique T.I.S. - Tag
Identification System to portable turbidity meters, to meet the more restrictive needs for traceability
and data management of our clients.
The system is designed for scientific and industrial applications, or to prove during safety audits and
inspections that samples have been truly taken on pre-established locations.
The system is as easy to install as to operate. Just fix the so-called iButton ® tags near your sampling
sites that need to be checked often, and with this the T.I.S. is setup. The tag contains a computer chip
embedded in a durable stainless steel can. It is designed to withstand the harsh environments, indoors
or outdoors. The number of tags that can be installed is practically unlimited, because each tag has a
unique identification code.
Immediately after installation of the tags you can start collecting data. Use the meter to take measurements
and memorize the test result by pressing the Log-on-Demand key. Then, the instrument will ask for the
tag identification. Simply touching the iButton ® with the matching connector on the meter does identify
and authenticate logging, by storing the iButton ® serial number, time and date stamp events.
The power of the T.I.S. features resides in the PC application. Download all test data to your PC and
use our HI 92000 Windows ® compatible application software for further data management. You can
sort or filter all your collected data on different criteria like on a specific sampling location, parameter,
date and time intervals, or fix range to filter measured values. The data can be plotted in a graph,
exported to other common Windows ® applications or printed for reporting purpose.
It is also possible to add new tags later on, thus increasing an already existing database. Each time
the PC software recognizes a not already registered tag, it will ask for a description of the new
sampling location.
TAG IDENTIFICATION SYSTEM
NTU Nephelometric Turbidity Units
FTU Formazin Turbidity Units
USEPA US Environmental Protection Agency
LCD Liquid Crystal Display
RTC Real Time Clock
T.I.S. Tag Identification System
ABBREVIATIONS
iButton ® is registered Trademark of “MAXIM/DALLAS semiconductor Corp.”
Windows ® is registered Trademark of “MICROSOFT Corporation”
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BATTERIES REPLACEMENT
To replace the batteries follow the next steps:
• Turn OFF the instrument by pressin ON/OFF.
• Open the batteries cover by pressing the locking clip.
• Take out the used batteries and insert 4 new 1.5 AA size batteries, paying attention to the correct
polarity as indicated on the battery compartment.
• Replace the cover and press it until it locks.
Warning: Replace batteries only in a non-hazardous area.
For field measurements, HI 83749 is powered by 4 AA batteries.
The battery life is enough for 1500 normal measurements.
When you turn the instrument on, the remaining battery life is
estimated and reported in percents.
To save the battery life, the instrument will turn off after 15
minutes of non-use. The backlight will be turn off after 25
seconds since the last key was pressed.
The battery life is measured each time the lamp is turned on
and if the remaining battery life is less than 10%, the battery
tag will blink on the LCD to advise the user to replace the
batteries.
When the batteries are completely discharged, “0% bAtt” message
will be displayed for one second and the instrument will turn off.
In order to use the instrument again, replace the batteries or
use an AC adapter.
BATTERIES MANAGEMENT