Hanna Instruments HI 931100 User manual

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Instruction Manual
HI 931100
HI 931101
HI 931102
Water-resistant
Microprocessor-based
Sodium / Sodium Chloride
Meters
Foodcare
This Instrument is in Compliance with the CE Directives
WWW.HANNAINST.COM
mannacl_r1.P65
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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 all the nec-
essary information for the correct use of the
instrument, as well as a precise idea of its
versatility in a wide range of applications.
These instruments are in compliance with
directives.
TABLEOFCONTENTSTABLEOFCONTENTS
TABLEOFCONTENTSTABLEOFCONTENTS
TABLEOFCONTENTS
Preliminary Examination ............................. 3
General Description .................................... 3
Functional Description HI931100 ................ 4
Specifications HI931100 ............................. 5
Functional Description HI931101 ................ 6
Specifications HI 931101 ............................ 7
Functional Description HI931102 ................ 8
Specifications HI931102 ............................. 9
Operational Guide ..................................... 10
Na Calibration (HI931101) ......................... 14
NaCl Calibration (HI931100/HI931102) ...... 18
Special Applications & Add'l Information .. 22
Temperature Calibration ............................ 25
FC300B Conditioning & Maintenance ....... 28
Battery Replacement ................................ 33
Accessories .............................................. 34
Warranty ................................................... 38
CE Declaration of Conformity ................... 39

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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 noticeable damage,
notify your Dealer.
Each meter is supplied complete with 4 x 1.5V
AA size batteries and rugged carrying case.
Note: Save all packing materials until you
are sure that the instrument functions
correctly. All defective items must be
returned in the original packing materials
together with the supplied accessories.
Hanna Instruments microprocessor-based So-
dium (HI 931101) / Sodium Chloride
(HI931100/HI 931102) analysers, are housed
in rugged, lightweight material designed for
single-handed use.
To assure trouble-free operations, the meters'
circuitry has a built-in protection against elec-
tromagnetic interference.
All meters come equipped with a large and
easy-to-read LCD, which shows sodium/so-
dium chloride and temperature values simul-
taneously and guides the user through the
calibration procedure with easy-to-follow
graphic symbols.
In addition, HI 931101 and HI 931102 provide
pNa or % NaCl readings respectively through
the MODE key.
Automatic calibration, rundown batteries indi-
cator and water-resistant housing are the fea-
tures which make these meters easy to use
and versatile both in the laboratory and in
the field applications.
GENERAL DESCRIPTION
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FUNCTIONAL DESCRIPTION
HI 931100
1. Battery Cover
2. BNC Electrode socket
3. RCA Temperature Probe socket
4. LCD Display
5. ON/OFF key, to turn the instrument on or off
6. CAL key, to enter or exit calibration mode
7. CFM key, to confirm calibration
8. BUF key, to select the calibration buffer value

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Measurement
NaCl
°C
Resolution
NaCl
°C
Accuracy NaCl
(@20°C/68°F) °C
Typical NaCl
EMC Deviation °C
Calibration
Temperature
Compensation
Electrode
Temperature
Probe
Battery Type
Life
Environment
Dimensions
Weight
SPECIFICATIONS HI 931100
HI 931100
0.150 to 1.500 g/L
1.50 to 15.00 g/L
15.0 to 150.0 g/L
150 to 300 g/L
0.0 to 80.0°C
0.001 g/L
0.01 g/L
0.1 g/L
1 g/L
0.1°C
±5% of reading
±0.5°C
±2% F.S.
±0.5°C
Automatic 1 or 2 point
at 3.00 g/L (HI 7083)
and 0.30 g/L (HI 7085)
or 30.0 g/L (HI 7081)
fixed at 25°C (77°F)
FC 300B glass combination
sodium-sensitive electrode
(not included)
HI 7662 temperature probe
(not included)
4 x 1.5V AA size
200 hours of continuous use
0 to 50°C (32 to 122°F); 100% RH
196 x 80 x 60 mm (7.7 x 3.1 x 2.4")
450 g (15.8 lb.)
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FUNCTIONAL DESCRIPTION
HI 931101
1. Battery Cover
2. BNC Electrode connector
3. RCA Temperature Probe socket
4. LCD Display
5. ON/OFF key to turn the instrument on or off
6. CAL key to enter or exit calibration mode
7. MODE key, to select the scale (Na or pNa)
8. CFM key, to confirm calibration
9. BUF key, to select the calibration buffer value

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0.00 to 3.00
15.0 to 150.0 mg/L (ppm)
0.150 to 1.500 g/L
1.50 to 15.00 g/L
15.0 to 60.0 g/L
0.0 to 80.0°C
0.01
0.001 g/L
0.01 g/L
0.1 g/L
1 g/L
0.1°C
±0.05
±5% of reading
±0.5°C
±2% F.S.
±2% F.S.
±0.5°C
Automatic 1 or 2 point
at 2.3 g/L (HI 7080/HI 8080)
and 0.23g/L (HI 7087/HI 8087)
or 23.0 g/L (HI 7086/HI8086)
fixed at 25°C (77°F)
FC 300B glass combination
sodium-sensitive electrode
(not included)
HI 7662 temperature probe
(not included)
4 x 1.5V AA size
200 hours of continuous use
0 to 50°C (32 to 122°F); 100% RH
196 x 80 x 60 mm (7.7 x 3.1 x 2.4")
450 g (15.8 lb.)
Measurement
pNa
Na
°C
Resolution
pNa
Na
°C
Accuracy pNa
(@ 20°C/68°F) Na
°C
Typical EMC pNa
Deviation Na
°C
Calibration
Temperature
Compensation
Electrode
Temperature
Probe
Battery Type
Life
Environment
Dimensions
Weight
SPECIFICATIONS HI 931101
HI 931101
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FUNCTIONAL DESCRIPTION
HI 931102
1. Battery Cover
2. BNC Electrode connector
3. RCA Temperature Probe socket
4. LCD Display
5. ON/OFF key, to turn the instrument on or off
6. CAL key, to enter or exit calibration mode
7. MODE key, to select the NaCl scale
(g/L or %)
8. CFM key, to confirm calibration
9. BUF key, to select the calibration buffer value

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Measurement
NaCl
NaCl %
°C
Resolution
NaCl
NaCl %
°C
Accuracy NaCl
(@20°C/68°F) NaCl%
°C
Typical NaCl
EMC NaCl%
Deviation °C
Calibration
Temperature
Compensation
Electrode
Temperature
Probe
Battery Type
Life
Environment
Dimensions
Weight
0.150 to 1.500 g/L
1.50 to 15.00 g/L
15.0 to 150.0 g/L
150 to 300 g/L
0.00 to 30.00
0.0 to 80.0
0.001 g/L
0.01 g/L
0.1 g/L
1 g/L
0.01
0.1
±5% of reading
±5% of reading
±0.5
±2% F.S.
±2% F.S.
±0.5
Automatic 1 or 2 point
at 3.00 g/L (HI 7083)
and 0.30 g/L (HI 7085)
or 30.0 g/L (HI 7081)
fixed at 25°C (77°F)
FC 300B glass combination
sodium-sensitive electrode
(not included)
HI 7662 temperature probe
(not included)
4 x 1.5V AA size
200 hours of continuous use
0 to 50°C (32 to 122°F);
100% RH
196 x 80 x 60 mm
(7.7 x 3.1 x 2.4")
450 g (15.8 lb.)
SPECIFICATIONS HI 931102
HI 931102
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OPERATIONAL GUIDE
INITIAL PREPARATIONINITIAL PREPARATION
INITIAL PREPARATIONINITIAL PREPARATION
INITIAL PREPARATION
Each meter is supplied
complete with 4x1.5V AA
batteries.
Remove the back cover,
unwrap the batteries and
install them while paying
attention to their polarity.
PROBES CONNECTIONPROBES CONNECTION
PROBES CONNECTIONPROBES CONNECTION
PROBES CONNECTION
Connect the sodium-sen-
sitive electrode FF
FF
FCC
CC
C300B300B
300B300B
300B
to the BNC socket on
the top of the instrument.
Connect the optional tem-
perature probe HH
HH
HII
II
I76627662
76627662
7662 to
the RCA socket.
The temperature probe can be used indepen-
dently to take temperature measurements.
If the probe is
not plugged in,
the secondary
display reads
25°C and the
"°C" indicator
blinks.
To switch the instrument on,
press and hold the ON/OFF
key for a fraction of a second.
These meters have a built-in
protection against electromag-
netic interferences and the
holding of the keys is to en-
FC 300B
SODIUM
ELECTRODE
HI 7662N
TEMPERATU
RE
PROBE
gm
°C
NaCl
ON/OFF
ON/OFF

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sure that the commands are not mistaken for
erroneous signals.
In order to take accurate measurements,In order to take accurate measurements,
In order to take accurate measurements,In order to take accurate measurements,
In order to take accurate measurements,
make sure the instrument is calibratedmake sure the instrument is calibrated
make sure the instrument is calibratedmake sure the instrument is calibrated
make sure the instrument is calibrated
before use (see page 12 for Hbefore use (see page 12 for H
before use (see page 12 for Hbefore use (see page 12 for H
before use (see page 12 for HII
II
I931101 and931101 and
931101 and931101 and
931101 and
page 16 for Hpage 16 for H
page 16 for Hpage 16 for H
page 16 for HII
II
I931100 & H931100 & H
931100 & H931100 & H
931100 & HII
II
I931102).931102).
931102).931102).
931102).
For greatest accuracy, calibration should be
performed (or at least verified) every day for
measurements taken in the same type of
samples (e.g. cheese) or every time the
sample type is changed (e.g. cheese, meat,
sea water, etc.).
The best working temperature is around 20-
25°C (68-77°F). For greater accuracy, per-
form the calibration of the meter with stan-
dard solution at a temperature as close as
possible to the temperature of the sample
(± 1°C/±2°F).
TAKING SODIUM MEASUREMENTSTAKING SODIUM MEASUREMENTS
TAKING SODIUM MEASUREMENTSTAKING SODIUM MEASUREMENTS
TAKING SODIUM MEASUREMENTS
Remove the protective cap
of the FC300B sodium-sen-
sitive electrode and, if pos-
sible, rinse it with some of
the sample you are going to
measure.
Lower the rubber sleeve to
get the junction to work prop-
erly.
Immerse the tip of the
FC300B electrode (2.5 cm/
1" i.e. the electrode junc-
tion must be completely im-
mersed) into the sample to
be tested without touching
the bottom of the beaker.
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Wait for up to 10 to 15 minutes to allow for
the electrode to adjust and stabilize, i.e.
until there is no drifting for at least a couple
of minutes.
During measurement, if possible, the sample
should be gently stirred (100 rpm).
pNa (for HI931101) and NaCl% (for HI931102)
measurements
Press the MODE key during measurement to
convert the displayed value of HI 931101 to
pNa.
pNa = -log aNa
where aNa is the activity of ion Na.
Press the MODE key during measurement to
convert the displayed value of HI 931102 to
%.
Press the same key to return to g/L mea-
surements.
MAGNETIC STIRRER
HI 190M
POWER
SPEED
ON
OFF MAX
°C
MODE
MODE

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TAKING TEMPERATURE MEASURE-
MENTS
To take temperature measure-
ments, connect the tempera-
ture probe, turn the instrument
on and dip the liquid/general
purpose temperature probe
HI 7662 into the sample. Al-
low the reading to stabilize.
Note: the temperature is al-
ways displayed on the
secondary display.
AFTER USE
Turn the meter off by press-
ing the ON/OFF key again.
For a faster and accurate mea-
sure, the electrode should be
stored in a solution with a Na/
NaCl concentration similar to
the sample to be measured.
Upper the rubber sleeve after
use.
For infrequent use (once a
month or less) store the elec-
trode dry. Before using it
again, let it condition over-
night in HI7081/HI8081 (30.0
g/L NaCl) or HI7086/HI8086
(23 g/L Na 1M)
To avoid very long re-
sponse time, do not store
or rinse the electrode with
deionized water. Never rub
or blot the electrode.
gm
°C
NaCl
ON/OFF
ON/OFF
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Na CALIBRATION (HI 931101)
The calibration is performed by immersing
the FC 300B sodium-sensitive electrode in 2
different standard Na solutions to achieve ac-
curate 2 point calibration.
It is also possible to calibrate just the offset
(2.3 g/L Na) following the single point calibra-
tion procedure described below.
For best accuracy, a two-point calibration is
recommended (see below).
PREPARATION
• Pour small quantities of
HI7080 or HI8080 (2.3
g/L Na) solution and
HI7087 or HI8087 (0.23
g/L Na) or HI7086 or
HI8086 (23 g/L Na) into
two clean beakers.
To obtain accurate readings, use HI7080/
HI8080 and HI7087/HI8087 if you are go-
ing to measure samples with low sodium
content (below 2.3 g/L) or HI7080/HI8080
and HI7086/HI8086 if you are going to
measure samples with high sodium con-
tent (over 2.3 g/L).
• For accurate calibra-
tion use two bea-
kers for each buffer
calibration, the first
one for rinsing the electrode, the second
one for calibration. This way, contamina-
tion of the buffer is minimized. Whenever
possible use plastic beakers to minimize
any EMC interferences.
• Turn the meter on by
pressing the ON/OFF key.
HI 7080 HI 7087
HI 7080
ON/OFF
HI 7080 HI 7080
RINSE CALIBRATION

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• Remove the protective cap of the
electrode and rinse it with some of
the buffer calibration solution you are
going to use first.
• Lower the rubber sleeve to get the
junction to work properly
SINGLE POINT CALIBRATION (OFFSET)
• Dip the FC 300B sodium
electrode into the
2.3 g/L Na solution
(HI 7080 or HI 8080).
Note: the electrode
should be im-
mersed approxi-
mately 2.5 cm (1")
into the solution.
• Press the CAL key. The "CAL" and "BUF"
indicators will be displayed with the "BUF"
and the " " symbols blinking.
• As soon as the standard
solution is recognized,
the BUF symbol stays
still while the " "
symbol continues to
blink indicating that the
electrode is stabilizing.
The value of the stan-
dard solution being used
will be displayed on the
primary LCD.
• As soon as the electrode
is stabilized, "CON"
symbol will appear on
the display.
2.3 g/L
Na
CAL
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For best results, wait for a
couple of minutes before
pressing the CFM key.
• HI 931101 will display
"0.230 gm".
• If the CAL key is pressed
at this point, the calibra-
tion process is ended pro-
viding only one point cali-
bration. For better accu-
racy however, it is recom-
mended that a two-point
calibration is performed.
TWO POINT CALIBRATION
• Proceed as described in "Single Point Cali-
bration" but do not quit calibration by press-
ing the CAL key.
• After the first point is con-
firmed, immerse the
FC 300B electrode into the
second buffer solution at
0.23 g/L Na (HI7087/
HI 8087)or 23 g/L Na
(HI 7086/HI8086).
Note: the electrode should
be immersed ap-
proximately 2.5 cm
(1") into the solu-
tion.
• Select the buffer value by
pressing the BUF key.
Make sure that the buffer
value selected through the
BUF key corresponds to
the one being used for the
second point calibration.
CFM
gm
°C
BUF
CAL
CAL
0.23 g/L or 23 g/L
Na
BUF

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• If the reading is not close
to the selected buffer, the
"BUF" prompt will continue
to blink.
If on the other hand, the
reading is close to the se-
lected buffer, the meter
will recognize the standard
solution. The BUF symbol
will stay still on the dis-
play, while the " " sym-
bol will blink, indicating that
the meter is stabilizing its
reading.
• Once stabilized "CON"
symbol will appear on
the display.
Wait for a couple of min-
utes and press the CFM
key.
• The meter will return to its normal mode
and the two point calibration process is
completed.
CFM
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NaCl CALIBRATION (HI931100/HI931102)
The calibration is performed by immersing
the FC 300B sodium-sensitive electrode in 2
different standard NaCl solutions to achieve
accurate 2 point calibration.
It is also possible to calibrate just the offset
(3.00 g/L NaCl) following the single point cali-
bration procedure described below.
For best accuracy, a two-point calibration is
recommended (see below).
PREPARATION
• For HI931100 and HI931102:
Pour small quantities of
HI 7083 or HI 8083 (3.00 g/L
NaCl) solution and HI 7085
or HI 8085 (0.30 g/L) or
HI 7081 or HI 8081 (30 g/L)
into two clean beakers.
To get accurate readings use HI 7083/HI 8083
and HI 7085/HI8085 if you are going to mea-
sure samples with low sodium chloride con-
tent (below 3 g/L) or HI 7083/HI8083 and
HI 7081/HI8081 if you are going to measure
samples with high sodium chloride content
(over 3 g/L).
• For accurate calibra-
tion, use two bea-
kers for each buffer
calibration, the first
one for rinsing the electrode, the second
one for calibration. This way, contamina-
tion of the buffer is mini-
mized. Whenever possible
use plastic beakers to mini-
mize any EMC interferences.
• Turn the meter on by
pressing the ON/OFF key.
• Remove the protective cap
of the electrode and rinse
HI 7083 HI 7085
HI7083
ON/OFF
ON/OFF

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it with some of the buffer calibration
solution you are going to use first.
• Lower the rubber sleeve to get the
junction to work properly
SINGLE POINT CALIBRATION (OFFSET)
• Dip the FC 300B sodium
electrode into the 3.00 g/L
NaCl solution (HI 7083 or
HI 8083).
Note: the electrode should
be immersed ap-
proximately 2.5 cm
(1") into the solu-
tion.
• Press the CAL key. The
"CAL" and "BUF" indica-
tors will be displayed with
the "BUF" and the " "
symbols blinking.
• As soon as the standard
solution is recognized, the
BUF symbol will stay still
while the " " symbol
will continue to blink indi-
cating that the electrode
is stabilizing.
The value of the standard
solution being used will be
displayed on the primary
LCD.
• As soon as the electrode
is stabilized, "CON" sym-
bol will appear on the dis-
play.
For best results, wait for a
couple of minutes before
CAL
CAL
3 g/L
NaCl
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pressing the CFM key. HI931100 and
HI931102 will then display "30.0 gm".
• If the CAL key is pressed
at this point, the calibra-
tion process is ended pro-
viding only one point cali-
bration. For better accu-
racy however, it is recom-
mended that a two-point
calibration is performed.
TWO POINT CALIBRATION
• Proceed as described in "Single Point Cali-
bration" but do not quit calibration by press-
ing the CAL key.
• After the first point is con-
firmed, immerse the
FC 300B electrode into the
second buffer solution at
0.3 g/L NaCl (HI 7085/
HI8085) or 30 g/L NaCl
(HI 7081/HI8081).
Note: the electrode should
be immersed ap-
proximately 2.5 cm
(1") into the solu-
tion.
CFM
CFM
gm
°C
NaCl
BUF
CAL
CAL
CAL
0.3 g/L or 30 g/L
NaCl

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• Select the buffer value by
pressing the BUF key.
Make sure that the buffer
value selected through the
BUF key corresponds to
the one being used for the
second point calibration.
• If the reading is not close
to the selected buffer, the
"BUF" prompt will blink.
If on the other hand, the
reading is close to the se-
lected buffer, the meter will
recognize the standard so-
lution. The BUF symbol will
stay still on the display,
while the " " symbol
will blink, indicating that
the meter is stabilizing its
reading.
• Once stabilized "CON"
symbol will appear on the
display.
For best results, wait for a
couple of minutes and
press the CFM key.
• The meter will return to its normal mode
and the two point calibration process is
completed.
BUF
BUF
CFM
CFM
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HOW TO MEASURE SODIUM CHLORIDE
IN CHEESE AND MEAT (HI931100 &
HI931102)
1. Take a sample of cheese or
meat to be analyzed.
2. Grind the sample.
3. Pour a quantity of X g in a
glass beaker. Add (X) x 10mL
of deionized water (note: ignoring water
content in cheese and meat).
4. Cover the beaker to prevent any spilling
during stirring, place the beaker on the
top of a hot plate stirrer and agitate the
sample at 40-50°C (104-122°F) for 15-20
minutes.
5. Let the sample cool to the ambient tem-
perature, then filter it.
SPECIAL APPLICATIONS &
ADDITIONAL INFORMATION

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MAGNETIC STIRRER
HI 190M
POWER
SPEED
ON
OFF MAX
FILTERE
D
SOLUTIO
N
6. Dip the sodium electrode FC300B into the
filtered sample. The tip of the electrode
should be immersed for approximately
2.5 cm/1" (i.e. the electrode junction must
be completely immersed) without touch-
ing the bottom of the beaker. During mea-
surement, the sample should be gently
stirred (100 rpm).
7. Wait for the reading to stabilize, i.e. no
drift for at least a couple of minutes.
Take note of the measured value.
8. Since the dilution rate is 1/10, the reading
in the g/L range has to be divided by 100
to get the actual reading of NaCl (per
gram of cheese or meat) or it can be
considered the value directly expressed in
% of NaCl.
Note: 10 to 15 minutes as response time, in
the first measurement taken in samples
of cheese or meat, is the right amount
of time needed by the electrode to
stabilize. The next measurements in
cheese or meat samples will have a
shorter response time (less than 2 min-
utes). Do not rinse the sodium elec-
trode between measurements since con-
tamination is negligible.
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IONIC STRENGTH ADJUSTER (ISA)
It is recommend the use of HI 7090 ISA solu-
tion when the NaCl concentration of the
sample is lower than 5 g/L. In such case, the
calibration of the meters should be performed
with standard solution containing 2% of ISA.
ISA (Ionic Strength Adjuster) = 50% of NH4
Cl 4M +50% of NH4OH 4M (use 2mL of ISA
every 100 mL of sample).
TEMPERATURE
The best working temperature is around 20-
25°C (68-77°F).
For greatest accuracy, we suggest to perform
the calibration of the meter with standard
solution at a temperature as close as pos-
sible to the temperature of the sample (± 1°C/
±2°F).
Na CONCENTRATION WITH HI 931100 AND
HI 931102
It is always possible to determine the Na
concentration by using the formula:
XNa = XNaCl • (23 / 58.4)
where
XNa = Na concentration
and
XNaCl = NaCl concentration

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TEMPERATURE CALIBRATION
(FOR TECHNICAL PERSONNEL ONLY)
INITIAL PREPARATION
Prepare a container of ice and water and
another container with hot water at a known
temperature of 50°C/122°F. Place insulation
material around the containers to minimize
temperature changes.
Use a Checktemp or a calibrated thermom-
eter with a resolution of 0.1 as reference
thermometer.
Note: A blinking "°C" indicates
that the temperature
probe is disconnected.
PROCEDURE
• Connect the temperature probe HI7662 to
the RCA socket on the top of the instru-
ment.
• Turn the instrument off.
•Press the
CAL and
the ON/
OFF keys
simulta-
neously.
0 °C
(32 °F)
°C
50 °C
(122 °F)
°C
gm
°C
NaCl
+
+
CAL
CAL
ON/OFF
ON/OFF
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•Immerse the temperature
probe into the 0°C (32°F)
bath.
•When the reading stabilizes, press the
CAL key and the "0.0°C", "CAL" and "BUF"
symbols will be displayed. " " symbol
will blink for a few seconds.
• "" symbol will disappear from the dis-
play when the input value is stable and
"CON" will start blinking. Press the CFM
key to confirm the calibration value.
• Immerse the temperature
probe into the 50°C
(122°F) bath.
°C
0°C
(32°F)
CAL
CAL
BUF
CAL
°C
°C
CON
CFM
CFM
°C
50°C
(122°F)

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•Press the CAL key to display the "0.0°C"
and then press the BUF key to select
"50.0°C". "CAL" and "BUF" symbols. " "
symbol will blink for a few seconds
• "" will disappear from
the display when the input
value is stable and "CON"
will start blinking.
• Press the CFM key to con-
firm the calibration value.
• The calibration is now com-
plete.
• Turn the meter off and on
again to resume the nor-
mal operating mode.
CAL
CAL
BUF
BUF
BUF
CAL
°C
°C
CON
CFM
CFM
ON/OFF
ON/OFF
mannacl_r1.P65
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FC300B CONDITIONING &
MAINTENANCE
PREPARATION
Remove the protective cap.
DO NOT BE ALARMED IF
ANY SALT DEPOSITS ARE
PRESENT.
This is normal with sodium
electrodes and they will disap-
pear when rinsed with water.
During transport tiny bubbles
of air may have formed inside
the glass bulb. The electrode
cannot function properly under
these conditions. These
bubbles can be removed by
"shaking down" the electrode
as you would do with a glass
thermometer.
If the bulb and/or
junction are dry,
soak the electrode
overnight in
HI 7081 NaCl
30.0 g/L solution
before using with
the HI 931100 or
HI 931102 sodium
meter. Soak it over-
night in HI 7086 or
HI 8086 Na 23 g/L
solution before us-
ing with the
HI 931101 sodium
meter.
If the fill solution
(electrolyte) is
more than 1 cm
(½") below the fill

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hole, add HI 8093 1M KCl+AgCl Electrolyte
Solution.
Lower the rubber sleeve during measurements
and calibration.
SODIUM MEASUREMENT
Rinse the sodium elec-
trode tip with some of
the sample to be tested
to remove any contami-
nation.
Immerse the tip (2.5 cm
/1") in the sample and
stir gently.
The sensitive bulb should
not touch the bottom of
the beaker.
The Hanna HI 76405
electrode holder can be
used for this purpose
(see page 35).
During measurement,
the sample should be
gently stirred (approx.
100 rpm). The Hanna
HI 190M stirrer can be
used for this purpose
(see page 34).
STORAGE
When used frequently, the electrode should
be stored in a solution with a Na or NaCl
concentration similar to the sample to be
measured. For longer periods of storage, the
electrode should be capped with a few drops
of appropriate solution.
MAGNETIC STIRRER
HI 190M
POWER
SPEED
ON
OFF MAX
mannacl_r1.P65
30
30
For frequent use in different samples (1 or 2
times per week), store the electrode in HI7081
or HI 8081 (30.0 g/L NaCl) if used for NaCl
measurements (in conjunction with HI 931100
or HI 931102).
Store the electrode in HI7080 or HI 8080
(2.3 g/L Na) if used for Na measurements (in
conjunction with HI 931101).
For occasional use (once a month or less)
store the electrode dry and let it conditioning
overnight in HI7081 or HI8081 (30.0 g/L NaCl)
or HI 7086 or HI 8086 (23 g/L Na) before use.
Note: NEVER STORE OR RINSE THE ELEC-
TRODE IN DISTILLED OR DEIONIZED
WATER.
PERIODIC MAINTENANCE
Inspect the electrode and the cable. The cable
used for connection to the meter must be
intact and there must be no points of broken
insulation on the cable or cracks on the
electrode stem or bulb. Connectors must be
perfectly clean and dry.
If any scratches or cracks are present, re-
place the electrode.
Rinse off any salt deposits with water.
Refill the electrode with fresh electrolyte
(HI8093) and let it stand upright for 1 hour.
Follow the Storage Procedure above.
CLEANING PROCEDURE
General Soak in Hanna HI 7061 or HI 8061
General Cleaning Solution for
approximately 1 hour.

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31
Removal of films, dirt or deposits on the
membrane/junction:
-
Protein Soak in Hanna HI 7073 or HI 8073
Protein Cleaning Solution for
15 minutes.
-
Inorganic Soak in Hanna HI 7074 or HI 8074
Inorganic Cleaning Solution
for 15 minutes.
-
Oil/grease Rinse with Hanna HI 7077 or
HI 8077 Oil and Fat Cleaning
Solution.
IMPORTANT: After performing any of the
cleaning procedures rinse the electrode
thoroughly with a solution containing 2%
ISA (see page 22), refill (if necessary)
the reference chamber with fresh electro-
lyte (HI8093) and soak the electrode in
a solution very close to the next
sample to be measured for at least 1
hour before taking measurements.
NEVER RUB OR BLOT DRY
THE ELECTRODE.
TROUBLESHOOTING
Evaluate your electrode performance based
on the following.
• Noise (Readings fluctuate up and down)
could be due to:
- Clogged/Dirty Junction: Refer to the
Cleaning Procedure above.
- Loss of shielding due to low electrolyte
level: HI 8093
mannacl_r1.P65
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32
• Dry Membrane/Junction: Soak it over-
night in HI7081 or HI8081 (30.0 g/L NaCl)
or HI7086 or HI8086 (23 g/L Na) before
use.
• Drifting: Soak the electrode tip in warm
Hanna Solution HI 8093 for one hour. Refill
with fresh HI 8093 electrolyte solution.
• Low Slope: Refer to the cleaning proce-
dure above.
• No Slope: Check the electrode for cracks
in glass stem or bulb and replace the
electrode.
• Slow Response/Excessive Drift: Soak
the tip in Hanna Solution HI7061 or HI 8061
for 30 minutes, rinse thoroughly in a solu-
tion with 2% of ISA (see page 22) and
then follow the Cleaning Procedure above.

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33
BATTERY REPLACEMENT
If the batteries become weak
the LCD will display "LOW
BAT".
Battery replacement must only take place in
a non hazardous area using the battery types
specified in this instruction manual (see
page 34).
To replace rundown batteries, remove the two
screws in the rear cover of the instrument
and replace all the 1.5V AA batteries with
new ones, paying attention to the correct
polarity. Replace the cover and tighten the
two screws.
LOW BAT
mannacl_r1.P65
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34
ACCESSORIES
Na CALIBRATION (& STORAGE) SOLU-
TIONS FOR HI931101:
HI 7080M 2.3 g/L Na solution, 230 mL
HI 7080L 2.3 g/L Na solution, 460 mL
HI 7086M 23 g/L Na solution, 230 mL
HI 7086L 23 g/L Na solution, 460 mL
HI 7087M 0.230 g/L Na solution, 230 mL
HI 7087L 0.230 g/L Na solution, 460 mL
Na CALIBRATION (& STORAGE) SO-
LUTIONS IN FDA APPROVED BOTTLES
FOR HI931101:
HI 8080M 2.3 g/L Na solution, 230 mL
HI 8080L 2.3 g/L Na solution, 460 mL
HI 8086M 23 g/L Na solution, 230 mL
HI 8086L 23 g/L Na solution, 460 mL
HI 8087M 0.230 g/L Na solution, 230 mL
HI 8087L 0.230 g/L Na solution, 460 mL
NaCl CALIBRATION (& STORAGE) SOLU-
TIONS FOR HI 931100 & HI 931102:
HI 7081M 30 g/L NaCl solution, 230 mL
HI 7081L 30 g/L NaCl solution, 460 mL
HI 7083M 3.0 g/L NaCl solution, 230 mL
HI 7083L 3.0 g/L NaCl solution, 460 mL
HI 7085M 0.3 g/L NaCl solution, 230 mL

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35
HI 7085L 0.3 g/L NaCl solution, 460 mL
HI 7090M ISA solution, 230 mL
HI 7090L ISA solution, 460 mL
NaCl CALIBRATION (& STORAGE) SO-
LUTIONS IN FDA APPROVED BOTTLES
FOR HI 931100 & HI 931102 :
HI 8081M 30 g/L NaCl solution, 230 mL
HI 8081L 30 g/L NaCl solution, 460 mL
HI 8083M 3.0 g/L NaCl solution, 230 mL
HI 8083L 3.0 g/L NaCl solution, 460 mL
HI 8085M 0.3 g/L NaCl solution, 230 mL
HI 8085L 0.3 g/L NaCl solution, 460 mL
HI 8090M ISA solution, 230 mL
HI 8090L ISA solution, 460 mL
ELECTRODE CLEANING SOLUTIONS:
HI7061M General Cleaning Sol., 230 mL
HI7061L General Cleaning Sol., 460 mL
HI7073M Protein Cleaning Sol., 230 mL
HI7073L Protein Cleaning Sol., 460 mL
HI7074M Inorganic Cleaning Sol., 230 mL
HI7074L Inorganic Cleaning Sol.,460 mL
HI7077M Oil & Fat Cleaning Sol., 230 mL
HI7077L Oil & Fat Cleaning Sol.,460 mL
mannacl_r1.P65
36
36
ELECTRODE CLEANING SOLUTIONS IN
FDA APPROVED BOTTLES:
HI 8061M General Cleaning Solution, 230 mL
HI 8061L General Cleaning Solution, 460 mL
HI 8073M Protein Cleaning Solution, 230 mL
HI 8073L Protein Cleaning Solution, 230 mL
HI 8077M Oil & Fat Cleaning Solution, 230mL
HI 8077L Oil & Fat Cleaning Solution, 460mL
REFILLING ELECTROLYTE SOLUTION IN
FDA APPROVED BOTTLE:
HI 8093 1M KCl + AgCl Electrolyte, 4x50mL
OTHER ACCESSORIES:
ChecktempC Pocket-size thermometer with
penetration probe and 0.1°C
resolution (range -50.0 to
150.0°C)
FC 300B Sodium electrode, glass body,
single junction, refillable, with
1 meter (3.3') cable
HI190M/D Mini-stirrer 220V (max. stirring
capacity 1 liter, speed range
min.100 max. 1000 rpm)
HI190M/U Mini-stirrer 115V (max. stirring
capacity 1 liter, speed range
min.100 max. 1000 rpm)

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HI 710031 Rugged carrying case
HI 721308 1.5V AA alkaline battery (10
pcs)
HI 7662 Temperature probe with 1 m
(3.3') cable
HI 76405 Electrode holder
MANNACLR1 Instruction manual
mannacl_r1.P65
38
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AllHannaInstruments metersarewarranted
fortwoyearsagainstdefectsinworkmanship
and materials when used for their intended
purpose and maintained according to instruc-
tions.
The electrodes and the probes are war-
ranted for a period of six months.
Thiswarrantyislimitedtorepairorreplacement
freeofcharge.
Damages due to accident, misuse, tampering
orlackofprescribedmaintenancearenotcov-
ered.
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 war-
ranty, you will be notified of the charges in-
curred. If the instrument is to be returned to
HannaInstruments,firstobtainaReturnedGoods
AuthorizationNumberfromtheCustomerSer-
vicedepartmentandthensenditwithshipment
costsprepaid.When shippinganyinstrument,
makesureitisproperlypackagedforcomplete
protection.
Tovalidateyourwarranty,filloutandreturnthe
enclosedwarrantycardwithin14daysfromthe
dateofpurchase.
Allrightsarereserved.Reproductioninwholeor
inpartisprohibitedwithoutthewrittenconsent
ofthecopyrightowner.
Hanna Instruments reserves the right to
modify the design, construction and
appearance of its products without advance
notice.
WARRANTY

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Recommendations for Users
Before using these products, make sure that they are entirely suitable for the
environment in which they are used.
Operation of these instruments in residential area could cause unacceptable
interferences to radio and TV equipments, requiring the operator to take all necessary
steps to correct interferences.
Any variation introduced by the user to the supplied equipment may degrade the
instruments' EMC performance.
To avoid electrical shock, do not use these instruments when voltages at the
measurement surface exceed 24VAC or 60VDC.
To avoid damages or burns, do not perform any measurement in microwave ovens.
DECLARATION OF CONFORMITY
We
Hanna Instruments Srl
V.le delle industrie 12
35010 Ronchi di Villafranca (PD)
ITALY
herewith certify that the meters
have been tested and found to be in compliance with the following regulations:
IEC 801-2 Electrostatic Discharge
IEC 801-3 RF Radiated
EN 55022 Radiated, Class B
Date of Issue: 13-03-1996
D.Volpato - Engineering Manager
On behalf of
Hanna Instruments S.r.l.
HI 931100 HI 931101 HI 931102
CE DECLARATION OF CONFORMITY
mannacl_r1.P65
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40
MANNACLR1
03/96
http://www.hannainst.com
Importør:
Impex Produkter AS
Gamle Drammensvei 107
1363 HØVIK
Tel. [phone]
[email protected]
www.impex.no