Hanna Instruments HI 2300 User manual

1
EC/TDS/NaCl
Bench Meter
HI 2300
Instruction Manual
www.hannainst.com
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2
TABLE OF CONTENTS
WARRANTY .................................................................................................... 2
PRELIMINARY EXAMINATION ............................................................................ 3
GENERAL DESCRIPTION .................................................................................... 3
FUNCTIONAL DESCRIPTION .............................................................................. 4
SPECIFICATIONS ............................................................................................. 5
OPERATIONAL GUIDE ....................................................................................... 7
AUTO-RANGING .............................................................................................. 9
ECS/TDS CALIBRATION .................................................................................... 10
CONDUCTIVITY VERSUS TEMPERATURE CHART ...................................................12
NaCl CALIBRATION ......................................................................................... 13
GOOD LABORATORY PRACTICE (GLP) .................................................................14
LOGGING FUNCTION ....................................................................................... 16
SETUP ..........................................................................................................21
TEMPERATURE CALIBRATION (for technical personnel only) .................................25
PC INTERFACE ............................................................................................... 27
PROBE MAINTENANCE .................................................................................... 31
TROUBLESHOOTING GUIDE .............................................................................. 32
ACCESSORIES ............................................................................................... 33
WARRANTY
HI 2300 is guaranteed for two years against defects in workmanship and
materials when used for its intended purpose and maintained according to
instructions. Electrodes and probes are guaranteed for six months. 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 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 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, first obtain
a Returned Goods Authorization number from the Technical Service
department and then send it with shipping costs prepaid. When shipping
any instrument, make sure it is properly packed for complete protection.
Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using thisinstrument.
This manual will provide you with the necessary information for correct
use of this instrument, as well as a precise idea of its versatility.
If you need additional technical information, do not hesitate to e-mail
us at [email protected] or view our worldwide contact list at
www.hannainst.com.
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GENERAL DESCRIPTION
The HI 2300 is a logging microprocessor-based Conductivity (EC), TDS,
NaCl and Temperature bench meter.
The conductivity measurements are compensated for temperature
effect manually or automatically with the temperature sensor inside
the conductivity probe. It is also possible to disable the temperature
compensation and measure the actual conductivity.
The auto-ranging feature of the EC and TDS ranges automatically sets
the instrument to the scale with the highest possible resolution.
The temperature coefficient on EC range is user selectable.
The GLP feature provides a guarantee of data consistency.
The instrument can store data in memory for later retrieval. The meter’s
memory can hold 500 manually logged points.
An USB connection ensure communication with a PC.
PRELIMINARY EXAMINATION
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
damage, notify your Dealer or the nearest Hanna Customer Service Center.
Each instrument is supplied with:
•HI 76310 Conductivity / TDS probe
•12VDC Power Adapter
•Instruction Manual
Note:Save all packing material until you are sure that the instrument
functions correctly. All defective items must be returned in the
original packing with the supplied accessories.
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1) Liquid Crystal Display (LCD).
2) CAL key, to enter and exit calibration mode.
RCL key (alternate function), to enter and exit memory recall.
3) CFM/GLP key, to confirm calibration selection, different setup values
or to display Good Laboratory Practice information.
4) ºC key, to manually increase temperature value or other parameters.
TC key (alternate function), to view temperature coefficient value.
5) ºC key, to manually decrease temperature value or other parameters.
ATC key (alternate function), to select EC temperature compensation mode.
6) SETUP key, to enter/exit SETUP mode.
LOCK key (alternate function), to freeze current EC range on the LCD.
7) RANGE key, to select measurement range (EC, TDS, NaCl), switch to
focused data in SETUP or toggle between standard value and
temperature during calibration.
8) LOG/CLR key, to store a value into memory, or to select to delete log
records.
9) ALT key, to select alternate function.
10) ON/OFF switch.
11) Power supply socket.
12) USB connector.
13) EC probe connector.
Front Panel
Rear Panel
FUNCTIONAL DESCRIPTION
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EGNAR
99.92ot00.0 µmc/S
9.992ot0.03 µmc/S
003 .9992ot .µmc/S
mc/Sm99.92ot00.3
mc/Sm0.002ot0.03
lautcamc/Sm0.005otpu
)*(
ytivitcudnoc
mpp99.41ot00.0
mpp9.941ot0.51
051 .9941ot .mpp
l/g99.41ot05.1
l/g0.001ot0.51
l/g0.004otpu lautca
)*(
SDT
)rotcaf08.0htiw(
lCaN%0.004ot0.0
Cº0.021ot0.02–
NOITULOSER
10.0 µmc/S
01.0 µmc/S
0.0 1µmc/S
mc/Sm10.0
0mc/Sm1.0
mpp10.0
mpp1.0
mpp1
l/g10.0
l/g1.0
lCaN%1.0
Cº1.0
YCARUCCA
F°86/C°02@
50.0±(gnidaerfo%1± µ1romc/S
)retaergrevehcihw,tigid
(gnidaerfo%1± ± 1rompp30.0
)retaergrevehcihw,tigid
gnidaerfo%1±
)rorreeborpgnidulcxe(Cº4.0±
(*)Actual conductivity (or TDS) is the conductivity (or TDS) value without temperature
compensation.
SPECIFICATIONS
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noitarbilaCCE
;noitarbilacepolstniop1
:elbaliavasreffub6
3141,0.48 µmc/S
mc/Sm8.111,0.08,88.21,00.5
:tesffotniop1
00.0 µmc/S
noitarbilaClCaN htiwtniop1 L7307IH )lanoitpo(reffub
erutarepmeT
noitasnepmoc
:morfcitamotuArolaunaM
Cº0.021ot0.02–
lautcaerusaemotdelbasidebnac(
)ytivitcudnoc
ytivitcudnoC
tneiciffeocerutarepmet
Cº/%00.6ot00.0
)ylnoSDTdnaCErof(
Cº/%09.1sieulavtluafed
rotcafSDT 08.0ot04.0
)05.0sieulavtluafed(
eborPCE 01367IH
erutaefdnamednogoL sdrocer005
noitacinummocCP BSUdetalosiotpO
ylppusrewoP retpadaCDV21
snoisnemiD )”3.4x7.8x2.9(mm901x222x532
thgieW ;)bl9.2(gK3.1
)bl6.4(gK1.2redlohhtiwtik
tnemnorivnE )Fº221–23(Cº05–0
gnisnednoc-nonHR%59.xam
ytnarraW sraey2
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OPERATIONAL GUIDE
POWER CONNECTION
Plug the 12 VDC adapter into the power supply socket.
Notes:•This instrument uses non volatile memory to retain the calibration
parameters and all other settings, even when unplugged.
•Make sure a fuse protects the main line.
PROBE CONNECTION
For EC/TDS or temperature measurements connect the probe to the 7-pin
connector. Make sure the probe sleeve is properly inserted.
INSTRUMENT START-UP
•Turn the instrument on by pressing the ON/OFF switch located on
the rear panel.
•All LCD tags are displayed and a beep is sounded while the
instruments perform a self test.
•The instrument will display “LoAd” message and “” blinking until
initialization is complete.
Notes:•The instrument starts in the same range and mode as it was
at power off.
•The RANGE key toggles between measurement ranges:
- EC, TDS and NaCl.
CONDUCTIVITY MEASUREMENTS
Connect the conductivity probe to the instrument.
•Press the RANGE key to enter conductivity measurement range (EC).
•Submerse the probe into the solution to be tested. The
sleeve holes must be completely submersed. Tap the
probe repeatedly to remove any air bubbles that may
be trapped inside the sleeve.
•The conductivity value will be displayed on the primary
LCD and the temperature on the secondary LCD.
•If the reading is out of range, the full-scale value (200.0 for Mtc/Atc
mode or 500.0 for actual conductivity) will be displayed blinking.
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The conductivity reading is affected by temperature.
Three options for temperature compensation are available in conductivity
measurement mode.
Note:The compensation is referenced at the selected reference temperature
(see SETUP for details, page 21).
To select the desired option, press the
ALT&ATC keys until the option is displayed
on the LCD.
Automatic (Atc): The conductivity probe has a built-in temperature
sensor; the temperature value is used to automatically compensate the
EC/TDS reading.
Manual (Mtc): The temperature value, shown on the secondary LCD,
can be manually set with the ARROW keys. The “ºC” tag blinks when
this option is active. This value will be used to compensate the ECT/TDS
reading.
No Compensation (notc): The temperature value is displayed, but not
taken into account. When this option is selected the “ºC” tag will blink
with slower frequency. The reading displayed on the primary LCD is the
uncompensated EC or TDS value.
Notes:•The default compensation mode is Atc.
•If no temperature probe is detected, Atc mode can not be selected
and the instrument displays “----” on the secondary LCD.
If temperature compensation is selected, measurements are compensated
using the temperature coefficient (default value 1.90 %/ºC). To change
the temperature coefficient, enter the setup mode and select “tc” (see
SETUP for details, page 21). The current temperature coefficient can be
quickly viewed by pressing the ALT&TC keys in Atc and Mtc modes. The
value is briefly displayed on the secondary LCD.
•If the temperature reading exceeds the limits of the meter (–20.0 ºC
to 120.0 ºC), the “ºC” tag will blink and the closest full-scale value
will be displayed.
TDS MEASUREMENTS
Press the RANGE keys while in EC range. The instrument will switch to
TDS measuring range. The TDS reading will be displayed on the primary
LCD and the temperature reading on the secondary LCD.
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•If the reading is out of range, the full-scale value (100.0 for Mtc/Atc
mode or 400.0 for uncompensated TDS) will be displayed blinking.
•If LOCK was pressed to freeze the LCD range and the reading goes out of
range, the full-scale value of the frozen range will be displayed blinking.
NaCl MEASUREMENTS
Press the RANGE keys while in EC range until NaCl is displayed on the
LCD. The instrument will display the NaCl reading on the primary LCD
and the temperature reading on the secondary LCD line.
•If the reading is out of range, the full-scale value (400.0%) will be
displayed blinking.
AUTO-RANGING
The EC and TDS scales are auto-ranging. The meter automatically sets
the scale with the highest possible resolution.
By pressing ALT&LOCK, the auto-ranging feature is disabled and the
current range is frozen on the LCD. The “LOCK” tag will be displayed on
the LCD.
Note:Auto-ranging is automatically restored if the range is changed, if
the setup or calibration modes are entered and if the meter is
turned off and back on again.
When auto-ranging is disabled and the reading goes out of range,
the full-scale value of the frozen range will be displayed blinking.
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EC/TDS CALIBRATION
Selectable calibration points for conductivity are 0.00 µS for offset and
84.0 µS, 1413 µS, 5.00 mS, 12.88 mS, 80.0 mS, 111.8 mS for slope.
Rinse the probe with calibration solution or deionized
water. Submerse the probe into the solution. The sleeve
holes must be completely submersed. Tap the probe
repeatedly to remove any air bubbles that may be trapped
inside the sleeve.
To enter EC calibration, select the EC range and press
CAL.
The “BUF” and “CAL” tags are displayed. The primary LCD will display
the EC reading. The secondary LCD will display the standard value. The
“”and “~” tags will blink and the information about temperature
compensation is displayed.
Note:The TDS reading is automatically derived from the EC reading and
no specific calibration for TDS is needed. Pressing CAL when TDS
range is selected has no effect.
For zero calibration, just leave the dry probe in the air. This calibration
is performed in order to correct the reading at 0.00 µS. The slope is
evaluated when the calibration is performed at any other point.
Select the desired value with the ARROW keys, if necessary.
When the reading is stable, “CFM” tag starts blinking on the LCD,
asking for confirmation.
Press CFM to confirm calibration.
The instrument stores the calibration value and returns
to measurement mode.
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Notes:•If the reading is too far from the expected value, the
“WRONG” and “ ” tags will blink. Calibration can not be
confirmed.
In this case check if the calibration solution has been used
correctly or clean the probe by following the Probe Maintenance
(see page 31).
•If the meter is in Atc or Mtc mode and the temperature is
out of the 0.0 to 60.0 ºC interval, “WRONG”, “ºC” tags
and the temperature will blink.
•For best results choose an EC standard value close to the
sample to be measured.
•In order to minimize any EMC interference, use plastic or
glass beakers.
•It is possible to set the cell constant value directly, without
following the calibration procedure. To set the cell constant,
enter SETUP mode and select “CELL” (see SETUP for details,
page 21).
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CONDUCTIVITY VERSUS
TEMPERATURE CHART
The conductivity of an aqueous solution is a measure of its ability to carry
an electrical current by means of ionic motion.
The conductivity invariably increases with increasing temperature.
It is affected by the type and number of ions in the solutions and by
the viscosity of the solution itself. Both parameters are temperature
dependent. The dependency of conductivity on temperature is
expressed as a relative change per Celsius degrees at a particular
temperature, commonly as %/ºC.
The following table lists the temperature dependence of HANNA EC
calibration standards.
Cº Fº
0307IH
0308IH
(µ)mc/S
1307IH
1308IH
(µ)mc/S
3307IH
3308IH
(µ)mc/S
4307IH
4308IH
(µ)mc/S
5307IH
5308IH
(µ)mc/S
9307IH
9308IH
(µ)mc/S
0 23 0517 677 46 00384 00456 0672
5 14 0228 698 56 00535 00147 0813
01 05 0339 0201 76 00695 00238 5163
51 95 08401 7411 86 00456 00529 3604
61 8.06 02701 3711 07 00276 00449 5514
71 6.26 05901 9911 17 00586 00369 5424
81 4.46 09111 5221 37 00896 00289 7334
91 2.66 03411 1521 47 00317 002001 9244
02 86 07611 8721 67 00427 001201 3254
12 8.96 01911 5031 87 00047 000401 7164
22 6.17 05121 2331 97 00257 009501 1174
32 4.37 09321 9531 18 00567 009701 5084
42 2.57 04621 6831 28 00387 008901 2094
52 77 08821 3141 48 00008 008111 0005
62 8.87 03131 0441 68 00318 008311 6905
72 6.08 07331 7641 78 00038 007511 0915
82 4.28 02631 4941 98 00948 007711 6825
92 2.48 07831 1251 09 00368 007911 3835
03 68 02141 8451 29 00288 008121 9745
13 8.78 07341 5751 49 00009 009321 5755
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NaCl CALIBRATION
NaCl calibration is a one-point calibration at 100.0% NaCl. Use the
HI 7037L calibration solution (sea water solution) as a 100% NaCl
calibration solution.
Rinse the probe with some of the calibration solution or
deionized water. Submerse the probe into HI 7037L
solution. The sleeve holes must be completely submersed.
Tap the probe repeatedly to remove any air bubbles that
may be trapped inside the sleeve.
To enter NaCl calibration select the NaCl range and press
CAL.
The “BUF” and “CAL” tags are displayed. The primary LCD will display
the NaCl reading in percentage. The secondary LCD will display “100”.
The “ ”and “~” tags will blink.
When the reading is stable, the “CFM” tag starts blinking on the LCD,
asking for confirmation.
Press CFM to confirm calibration.
The instrument stores the calibration value and returns to
measurement mode.
Notes:•If the reading is too far from the expected value,“WRONG”
“” tags will blink. Calibration cannot be confirmed.
•If the temperature of the standard is out of the 0.0 ºC to
60.0 ºC temperature interval, the “WRONG” and “ºC”
tags and the temperature will blink.
•If a new EC calibration is performed, the NaCl calibration is
automatically cleared. A new NaCl calibration is required.
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GLP is a set of functions that allows storage and retrieval of data
regarding the maintenance and status of the system.
All data regarding EC and NaCl calibration is stored for the user to review
when necessary.
EC CALIBRATION DATA
EC calibration data is stored automatically after a successful calibration.
To view the EC calibration data, press GLP when the instrument is in EC
measurement mode.
The instrument will display the time (hh:mm) of the last calibration.
Use the ARROW key to scroll through the calibration data.
•The date (mm.dd.yyyy).
•The calibration offset factor.
•The cell constant.
•The EC calibration standard.
GOOD LABORATORY PRACTICE (GLP)
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•The temperature coefficient.
•The instrument ID.
NaCl CALIBRATION DATA
NaCl calibration data is stored automatically after a successful calibration.
To view the NaCl calibration data, press GLP when the instrument is in
NaCl measurement mode.
The instrument will display the time (hh:mm) of the last calibration.
Use the ARROW key to scroll through the calibration data.
•The date (mm.dd.yyyy).
•The salinity coefficient.
•The cell constant.
•The instrument ID.
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Notes:•If no temperature compensation is selected during calibration,
the temperature coefficient is not displayed in GLP.
•Press GLP at any moment and the instrument will return to
measurement mode.
•If calibration has not been performed on the selected range,
the instrument displays “no CAL” message blinking.
LOGGING FUNCTION
Up to 500 logged samples can be stored into memory.
LOGGING THE CURRENT DATA
To store the current reading into memory press LOG while the instrument
is in measurement mode.
The instrument will display the current date (mm.dd) on the primary
LCD, the record number on the secondary LCD and “LOG” tag for a few
seconds (see example below: record No. 11):
followed by the number of free records:
If there are less than 6 memory locations remaining, the record number
and “Lo” message will be displayed to alert the user.
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If the log space is full (500 records), “FULL LOG” message will be
displayed and no more data will be saved.
When LOG is pressed, a complete set of information is stored: date, time,
EC, TDS, NaCl, temperature and calibration data.
VIEW LOGGED DATA
Press the ALT&RCL keys while in measurement mode to retrieve the
stored information.
If no data was logged for the current selected measurement range, one
of the next messages will be displayed:
No EC records:
No TDS records:
No NaCl records:
Otherwise, the instrument will display the memorized data, in according
with the selected range.
•If RCL was entered while in EC measurement range:
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In TDS measurement range:
In NaCl measurement range:
Use the ARROW keys, toscroll through the records.
Note:The instrument will automatically skip log records from other
measurement ranges.
For EC Range
•The conductivity value on the primary LCD and the temperature
value on the secondary LCD.
To view additional information press RANGE.
•The time on the primary LCD, along with “TIME” tag and record
number on the secondary LCD.
•The date on the primary LCD, along with “DATE” tag.
•The offset factor on the primary LCD and “OFFS” message on the
secondary LCD.
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•The cell constant on the primary LCD and “CELL” message on the
secondary LCD line.
•The temperature coefficient on the primary LCD and “tc” message
on the secondary LCD.
For TDS Range
•The conductivity value on the primary LCD and the temperature
value on the secondary LCD.
•The time and the date as described in EC Range.
•The TDS factor on the primary LCD and the log number on the
secondary LCD.
•The temperature coefficient and the cell constant as described
in EC Range.
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For NaCl Range
•The conductivity and temperature reading value as described in TDS
Range.
•The time and date as described in EC Range.
•The salinity factor on the primary LCD and the log number on the
secondary LCD, with “RCL” and “NaCl” tags displayed.
•The reference temperature, the temperature compensation mode
and the cell constant message as described above.
Note:When an information that does not display the record number
is selected, pressing the SETUP key will display the record
number on the secondary LCD line.
To delete logged records press the CLR key,while viewing the logged
data. The “dEL” message is displayed on the primary LCD and the
selected record on the secondary LCD, along with ”RCL” tag.
•The ARROW keys can be used to change the record number.
•Press SETUPto select delete all records feature. The display will show
“dEL” in the primary LCD and “ALL” in the secondary LCD.
•Press CFM to confirm delete. While deleting the “ ” tag will blink.
•Press CAL or RANGE or CLR to escape and return to the RCL screen.
•If “dEL ALL” option was selected, all the log on demand records are
deleted. While deleting the “ ” tag is displayed blinking.
•Press ALT&RCL to return to measurement mode at any time.
•If one or more records were deleted the “ ” tag blinks until the log
memory space is reorganized.
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