Hanna Instruments HI 931100 User Manual
Instruction Manual
HI 931 100 • HI 931101
W aterproof Instrument s
for Salinity and Sodium
Content Measurements
www.hannainst.com
1
PRELIMINARY EXAMINATION
Dear Customer,
Thank you for choosing a HANNA instruments
product.
Please read this instruction manual carefully before
using the instrument.
If you need additional technical information, do not
hesitate to e-mail us at tech@hannainst.com
These instruments are in compliance with the
directives.
TABLE OF CONTENTS
Preliminary Examination...................................... 3
General Description ............................................. 3
Functional Description HI931100 ......................... 4
Specifications HI931100 ...................................... 5
Functional Description HI931101 ......................... 6
Specifications HI 931101 ..................................... 7
Operational Guide................................................ 8
Na Calibration (HI 931101)................................. 12
NaCl Calibration (HI 931100) ............................. 15
Special Applications & Additional Info ............... 18
Temperature Calibration ..................................... 21
FC 300B Conditioning & Maintenance............... 23
Battery Replacement ......................................... 26
Accessories....................................................... 27
Warranty ............................................................ 29
CE declaration of conformity ............................. 30
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, immediately notify your
dealer.
Each meter is supplied with batteries, rugged
carrying case and instructions
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.
GENERAL DESCRIPTION
HANNA instruments® has designed these two rugged
waterproof salinity and sodium meters for regular use
in the lab, as well as in harsh processing
environments.
HI 931100 is an ion-selective meter that uses a sodium
electrode to read the salt (NaCl) content of a solution.
HI 931100 autoranges (4 scales available) from sample
to sample allowing an extremely wide range of
measurements without recalibration.
HI 931101 employs the FC 300B combination
sodium electrode to provide sodium readings from 15.0
mg/L to 60 g/L.
The calibration is automatic at 2 points, the first is at
2.3 g/L while the second can be either at 0.23 g/L (low
range) or at 23.0 g/L (high range).
A separate temperature probe, HI 7662, provides temperature readings from 0 to 80ºC.
32
SPECIFICATIONS HI 931100FUNCTIONAL DESCRIPTION HI 931100
Range
0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 150.0
150 to 300 g/L NaCl
0.0 to 80.0°C
Resolution
0.001 / 0.01 / 0.1 / 1 g/L NaCl
0.1°C
Accuracy ±5% of reading (NaCl)
(@20°C) ±0.5°C
Typical EMC Deviation
±2% FS (NaCl) / ±0.5°C
Calibration 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)
Temperature Compensation
25°C (77°F)
Electrode FC300B sodium electrode
with BNC and 1 m (3.3) cable (not included)
Temperature Probe
HI 7662 (not included)
Input Impedance 1012 Ohm
Battery Type / Life
4 x 1.5V AA / approx. 200 hours of use
Environment 0 to 50°C (32 to 122°F);
RH max 100%
Dimensions 196 x 80 x 60 mm
(7.7 x 3.1 x 2.4")
Weight 500 g (1.1 lb.)
1. Battery compartment
2. BNC connector for electrode
3. Temperature probe socket
4. LCD (Liquid Crystal Display)
5. ON/OFF key, to turn the meter on or off
6. CAL key, to enter/exit calibration mode
7. CFM key, to confirm calibration
8. BUF key, to select calibration buffer value
54
1. Battery compartment
2. BNC connector for electrode
3. Temperature probe socket
4. LCD (Liquid Crystal Display)
5. ON/OFF key, to turn the meter on or off
6. CAL key, to enter/exit calibration mode
7. MODE key, to select Na or pNa range
8. CFM key, to confirm calibration
9. BUF key, to select calibration buffer value
SPECIFICATIONS HI 931101FUNCTIONAL DESCRIPTION HI 931101
Range 0.00 to 3.00 pNa
15.0 to 150.0 mg/L Na
0.150 to 1.500 / 1.50 to 15.00 / 15.0 to 60.0 g/L Na
0.0 to 80.0°C
Resolution 0.01 pNa / 0.1 mg/L Na
0.001 / 0.01 / 0.1 / 1 g/L Na
0.1°C
Accuracy ±0.05 pNa
(@20°C) ±5% of reading (Na)
±0.5°C
Typical EMC Deviation
±2% FS (pNa and Na) / ±0.5°C
Calibration Automatic, 1 or 2 point
at 2.3 g/L (HI 7080) and
0.23 g/L (HI 7087) or 23.0 g/L (HI 7086)
Temperature Compensation
25°C (77°F)
Electrode FC300B sodium electrode
with BNC an 1 m (3.3) cable (not included)
Temperature Probe
HI 7662 (not included)
Input Impedance 1012 Ohm
Battery Type / Life
4 x 1.5V AA / approx. 200 hours of use
Environment 0 to 50°C (32 to 122°F);
RH max 100%
Dimensions 196 x 80 x 60 mm
(7.7 x 3.1 x 2.4")
Weight 500 g (1.1 lb.)
76
OPERATIONAL GUIDE
FC 300B
HI 7662N
E
INITIAL PREPARATION
Each meter is supplied complete with four 1.5V AA batteries.
Remove the back cover, unwrap
the batteries and install them
while paying attention to their
polarity.
PROBE CONNECTION
Connect the FC300B sodium
electrode to the BNC socket on
the top of the instrument.
Connect the HI 7662 temperature probe to the RCA socket.
SODIUM
ELECTRODE
TEMPERATUR
PROBE
For accurate readings, calibration should be performed (or verified) every day if measuring the same
type of samples (e.g. cheese), or every time the
sample type is changed (e.g. cheese, meat, sea
water, etc.).
The recommended working temperature is around
20-25°C (68-77°F). For greater accuracy, perform
the calibration with standard solutions at a temperature as close as possible to the temperature of the
sample.
TAKING SODIUM MEASUREMENTS
Remove the protective cap from the
FC300B sodium electrode and, if
possible, rinse it with some of the
sample to be measured.
The temperature probe can be
used independently to take temperature measurements.
If the probe is not plugged in,
the secondary display shows
NaCl
gm
"25°C" with the "°C" indicator
blinking.
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 electromagnetic interferences and the holding of the
keys is to ensure that the commands are not mistaken for erroneous signals.
In order to take accurate measurements, make
sure the instrument is calibrated before use
(see "Calibration" sections for details).
Shift downwards the rubber sleeve
(see picture) to have a properly working junction.
°C
Immerse the tip of the FC300B electrode (at least 2.5 cm/1") into the
sample to be tested while making
sure that the electrode junction is
completely immersed, and without
touching the bottom of the beaker.
Wait for approximately 10 to 15 minutes to allow
for the electrode to adjust and stabilize, i.e. until
no drifting is observed for at least a couple of
minutes.
During measurement, if possible,
the sample should be gently
stirred (100 rpm).
MAGNETIC STIRRER
HI 190M
ON
POWER
OFF MAX
SPEED
98
TAKING pNa MEASUREMENTS (HI 931101 only)
Press the MODE key during measurement to convert the value displayed by the HI 931101 to pNa.
Note that
pNa = -log a
Na
where aNa is the activity of ion Na.
°C
MODE
Press the MODE key again to return to g/L measurements.
TEMPERATURE MEASUREMENTS
Connect the temperature probe to
the meter and turn on.
Dip the HI 7662 temperature probe
into the sample. Allow the reading
to stabilize.
If the electrode is used rarely (once a month or
less), store it dry. Before using it again, let it
condition overnight in HI 7081 (30.0 g/L NaCl) or HI
7086 (23 g/L Na 1M)
To avoid very long response time, do not store
or rinse the electrode with deionized water. Do
not rub the electrode.
Note: The temperature is always
displayed on the secondary
NaCl
gm
LCD.
AFTER USE
Turn the meter off by pressing the
ON/OFF key again.
For faster and accurate measurements, the electrode
should be stored in a solution with a Na/NaCl concentration similar to the sample to be measured.
After use, shift back upwards the
rubber sleeve (see picture).
°C
1110
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