Hanna Instruments HI 2300 User manual

1
Instruction Manual
HI 2300
Auto-ranging
Microprocessor
EC/TDS/NaCl/ºC
Bench Meter
C
HI2300
Microprocessor Conductivity Meter
ALT FunctionsFunctions
TC
ATC
ALT
LOCK
SETUP
GLP
RANGE
CFM
CAL
CALT
Display TC Factor
TC
View Calibration
Data
GLP
SETUP Enter Setup Mode
Start Temperature
Calibration
CALT
Temperature
Compensation
ATC
Confirm Value
CFM
Change Value
/
Lock Current Range
LOCK
Start Calibration
CAL
Select Measurement
Range
RANGE
www.hannainst.com

2
TABLE OF CONTENTS
WARRANTY
HI 2300 is guaranteed for two years against defects in workmanship and
materials when used for their 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 packaged for complete protection.
Dear Customer,
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using the instrument.
This manual will provide you with the necessary information for correct use of
the 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 turn to the back cover for our worldwide contact list.
This instrument is in compliance with directives.
WARRANTY ..................................................................................................... 2
PRELIMINARY EXAMINATION .............................................................................. 3
GENERAL DESCRIPTION .................................................................................... 3
FUNCTIONAL DESCRIPTION ................................................................................ 4
SPECIFICATIONS ............................................................................................... 5
OPERATIONAL GUIDE ........................................................................................ 7
AUTORANGING ................................................................................................ 8
TEMPERATURE COMPENSATION ......................................................................... 8
EC/TDS CALIBRATION ....................................................................................... 9
NaCl CALIBRATION ......................................................................................... 10
TEMPERATURE CALIBRATION (for technical personnel only) .................................. 12
TEMPERATURE ADJUSTMENT .......................................................................... 12
CONDUCTIVITY VERSUS TEMPERATURE CHART ................................................. 13
SETUP .......................................................................................................... 14
GOOD LABORATORY PRACTICE ........................................................................ 15
DATA TRANSFER TO PC ................................................................................... 17
PROBE MAINTENANCE .................................................................................... 18
ACCESSORIES ................................................................................................ 18

3
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
•12V 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.
The HANNA HI 2300 is a bench microprocessor-based Conductivity/TDS/
NaCl/Temperature meter.
The autoranging feature of the EC and TDS ranges automatically sets the
instrument to the scale with the highest possible resolution.
The conductivity measurements are manually or automatically compensated
for temperature effect, with the temperature sensor inside the conductivity
probe. It is also possible to disable the temperature compensation and mea-
sure the actual conductivity.
The temperature coefficient is user selectable.
The instrument is equipped with a stability indicator. With this feature the
user will always know when to record a measurement.
HI 2300 includes also GLP capability and data transfer to a computer
through a RS232 port.
In addition, the meter allows the user to enter an ID code to uniquely identify
the instrument.
GENERAL DESCRIPTION
Hanna Instruments reserves the right to modify the design,
construction and appearance of its products without advance notice.

4
FUNCTIONAL DESCRIPTION
1) Liquid Crystal Display (LCD).
2) CAL key, to enter/exit calibration mode.
CALTkey (alternate function), to enter temperature calibration mode.
3) CFM key, to confirm different values.
4) key, to manually decrease temperature value or other parameters.
SETUP key (alternate function), to enter/exit SETUP mode.
5) key, to manually increase temperature value or other parameters.
GLP key (alternate function), to display Good Laboratory Practice information.
6) ATC key, to select temperature compensation mode.
TC key (alternate function), to view the temperature coefficient value.
7) ALT key, to select alternate key function.
8) LOCK key, to freeze current range on the LCD.
9) RANGE key, to select the measurement unit or to switch the focused data.
10) ON/OFF switch.
11) Power supply socket.
12) Probe connector.
13) RS232 serial communication connector.
11
CAL
CFM
ppm
BUF
g / l %
NaCl C
HI 2300
Microprocessor Conductivity Meter
ALT FunctionsFunctions
TC
ATC
ALT
LOCK SETUP GLP
RANGE CFM
CAL
CALT
Display TC Factor
TC
View Calibration
Data
GLP
SETUP Enter Setup Mode
Start Temperature
Calibration
CALT
Temperature
Compensation
ATC
Confirm Value
CFM
Change Value
/
Lock Current Range
LOCK
Start Calibration
CAL
Select Measurement
Range
RANGE
RS232
PROBEPOWER
12VDC
Front Panel
Primary LCD
Secondary LCD
1
2
8
4
6
3
12
Rear Panel
9
10
5
7
13

5
SPECIFICATIONS
EGNAR
CE
99.92ot00.0 µmc/S
9.992ot0.03 µmc/S
9992ot003 µmc/S
mc/Sm99.92ot00.3
mc/Sm0.002ot0.03
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SDT
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)mpp(L/gm9.941ot0.51
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NOITULOSER
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10.0 µmc/S
1.0 µmc/S
1µmc/S
mc/Sm10.0
mc/Sm1.0
SDT
L/gm10.0
L/gm1.0
L/gm1
L/g10.0
L/g1.0
lCaN %1.0
pmeT C°1.0
YCARUCCA
F°86/C°02@
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*Actual conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation.

6
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SPECIFICATIONS (cont.)

7
OPERATIONAL GUIDE
CONNECTIONS
Plug the 12 VDC adapter into the power supply socket.
Note: This instrument use non volatile memory to retain the calibration
parameters and all the other settings even when unplugged.
Connect the EC/TDS probe to the 7-pin connector. Tighten the threaded ring.
Make sure the probe sleeve is properly inserted, as shown below:
INSTRUMENT START-UP
•Turn the instrument on by pressing the ON/OFF switch.
•All LCD tags are displayed and a beep is generated while the instrument
performs self test.
TAKING MEASUREMENTS
Immerse the probe into the solution to be tested. The sleeve
holes must be completely submerged. Tap the probe repeat-
edly to remove any air bubbles that may be trapped inside
the sleeve.
If needed, press RANGE repeatedly until the desired range (EC, TDS, NaCl) is
selected on the LCD (displaying µS[mS], ppm[g/L] or %).
Allow for the reading to stabilize. The upper LCD displays the measurement in
the selected range, while the temperature is displayed on the lower LCD.
RS232
PROBEPOWER
12VDC
CAL
CFM
ppm
BUF
g / l %
NaCl C
RANGE
C

8
Notes:
•If the meter displays “----”, the reading is out of range.
•If the stability indicator “~” blinks, the reading is unstable.
•Make sure the meter is calibrated before taking measurements.
•If measurements are taken successively in different samples, for accu-
rate readings it is recommended to rinse the probe thoroughly with
deionized water before immersing it into the samples.
•TDS reading is obtained by multiplying the EC reading by the TDS
factor, which has a default value of 0.50. It is possible to change the
TDS factor in the 0.40 to 0.80 range by entering setup mode and
selecting the “tdS” item (see SETUP for details).
•When the use of an alternate function (SETUP, TC, GLP or CALT) is
requested, press and hold the ALT key first, and then the second key.
AUTORANGING
The EC and TDS scales are autoranging. The meter automatically sets the scale
with the highest possible resolution.
By pressing LOCK, the autoranging feature is disabled and
the current range is frozen on the LCD. “1” tag starts
blinking. To restore the autoranging option press LOCK
again.
Note: Autoranging is automatically restored if the range is changed, if the
setup or calibration modes are entered, or if the meter is turned off and
back on again.
TEMPERATURE COMPENSATION
Three options of compensating temperature are available:
Automatic (Atc): The EC probe has a built-in temperature sensor; the
temperature value is used to automatically compensate the EC/TDS reading
(from –9.9 °C to 120.0 °C), using the selected reference temperature.
Manual (Mtc): The temperature value, shown on the secondary LCD, can be
manually set with the ARROW keys. The compensation is referenced at the
selected reference temperature. The “°C” tag blinks when this option is active.
No Compensation (notc): The temperature value shown on the secondary LCD
is not taken into account. The reading displayed on the primary LCD is the actual
EC or TDS value. The “°C” tag blinks when this option is active.
Note: The default compensation mode is ATC.
LOCK

9
To select the desired option press ATC until the option is
displayed on the LCD.
If temperature compensation is active, measurements are
compensated using the temperature coefficient (default value
1.90 %/°C).
To change the temperature coefficient,enter the setup mode and select the “tc”
item (See SETUP for details, page 14). The current temperature coefficient can be
quickly viewed by pressing ALT+TC keys. The value is briefly displayed on the
secondary LCD.
•If the temperature reading is out of –9.9 °C - 120.0 °C interval and Atc or
Mtc option is selected,the temperature limit range value will be displayed,
together with the “°C” tag blinking and the instrument will do no
temperature compensation.
EC/TDS CALIBRATION
EC calibration is a one-point procedure. Selectable calibration points are:
0.00 µS, 84.0 µS, 1413 µS, 5.00 mS, 12.88 mS, 80.0 mS, 111.8 mS.
To enter EC calibration, select the EC range and press CAL.
Note: 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.
Rinse the probe with calibration solution or deionized water.
Immerse the probe into the solution. The sleeve holes must be
completely submerged. Tap the probe repeatedly to remove any
air bubbles that may be trapped inside the sleeve.
For zero calibration, just leave the dry probe in the air.
The “BUF” and “CAL” tags are displayed. The primary LCD displays the
uncalibrated EC reading. The secondary LCD displays the buffer value. The
“~” tag blinks.
CAL
BUF
ALT TC
CAL
ATC

10
NaCl calibration is a one-point procedure at 100.0% NaCl. Use the
HI 7037L calibration solution (sea water solution) as a 100% NaCl
standard solution.
To enter NaCl calibration select the NaCl range and
press CAL.
Rinse the probe with some of the calibration solution or
deionized water. Immerse the probe into HI 7037L
solution. The sleeve holes must be completely submerged.
Tap the probe repeatedly to remove any air bubbles
that may be trapped inside the sleeve.
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 displays the “Stor Good” message and returns to measurement mode.
Notes:
•If the uncalibrated reading is too far from the expected value or the
temperature value is out of 0 –60 ºC range, calibration is not recognized.
The “CFM” tag does not appear; the “~” and “BUF” tags blink to signal
wrong or contaminated calibration solution. If the temperature value is out
of 0 –60 ºC range, the “ºC” tag will also be displayed blinking on the LCD.
•ForbestresultschooseanECbuffervalueclosetothesampletobemeasured.
•In order to minimize any EMC interferences, use plastic beakers.
•The meter uses 1.90 %/°C compensation factor during calibration. If
the setup item “tc” has been set to a different value, when exiting
calibration mode, the displayed value on the upper LCD might be
different from the nominal buffer value.
•It is possible to set the cell constant value directly, without following the
calibration procedure. To set the cell constant enter the setup mode
and select “CEL” (see SETUP for details).
NaCl CALIBRATION
CAL
CFM
BUF
OR
CFM
CAL