Hanna Instruments HI 83141 User manual

Instruction Manual
HI 83141
Portable pH/mV/ºC meter
www.hannainst.com
WARRANTY
All Hanna Instruments meters are warranted for two years against
defects in workmanship and materials when used for their intended pur-
pose and maintained according to instructions.
The electrodes and the probes are warranted for a period of six
months. This warranty is limited to repair or replacement free of charge.
Damages due to accident, misuse, tampering or lack of prescribed mainte-
nance are 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 failure.
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 Customer
Service department and then send it with shipment costs prepaid.
When shipping any instrument, make sure it is properly packaged for
complete protection.
Dear Customer,
Thank you for choosing a Hanna product. This manual will
provide you with the necessary information for the correct
operation of the meter. Please read it carefully before using the
meter. If you need additional technical information, do not
hesitate to e-mail us at [email protected].
This instrument is in compliance with the directives.
Remove the instrument from the packing material and exam-
ine it carefully to make sure that no damage has occurred
during shipment. If there is any damage, notify your Dealer.
The meter is supplied complete with
• HI 1230B plastic-body, double-junction, gel, com-
bination pH electrode with BNC and 1 m cable
• HI 7669AW temperature probe with 1 m cable
• 1 x 9V battery, screwdriver and instructions.
Note: Conserve all packing material until the instrument has
been observed to function correctly. Any defective item
must be returned in its original packing.
PRELIMINARY EXAMINATION
FUNCTIONAL DESCRIPTION SPECIFICATIONS
1) BNC connector for pH (or ORP) electrode.
2) Liquid Crystal Display.
3) mV key, to display the mV (ORP) readings when using
an ORP electrode or the mV equivalent to pH values
when using a pH electrode.
4) Trimmer for pH OFFSET calibration.
5) Trimmer for pH SLOPE calibration.
6) °C key, to display the temperature measurement.
7) pH key, to display the pH value.
8) ON/OFF key.
9) Socket for HI 7669AW temperature probe.
Range 0.00 to 14.00 pH
±1999 mV
0.0 to 100.0°C
Resolution 0.01 pH / 1 mV /0.1°C
Accuracy (@20°C/68°F) ±0.01 pH / ±1 mV
±0.4°C
Typical EMC Deviation ±0.07 pH / ±5 mV / ±1°C
pH Calibration Manual, at 2 points through
offset and slope trimmers
Offset Calibration ±1 pH
Slope Calibration from 85 to 105%
ORP Calibration Factory calibrated
Temperature Calibration Factory calibrated
Temperature Compensation
Automatic, from 0 to 70°C
Probes (included)HI 1230B pH-electrode
HI 7669AW temperature probe
Battery Type 1 x 9V alkaline
Battery Life 100 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
max 95% RH non-condensing
Dimensions 164 x 76 x 45 mm
(6.5 x 3.0 x 1.8")
Weight 180 g (6.3 oz.)
ACCESSORIES
HI 1230B Plastic body, double-junction, gel, combination pH-
electrode with BNC connector and 1 m cable
HI 3131B Glass-body, refillable, combination platinum ORP-
electrode with BNC connector and 1 m cable
HI 7669AW Temperature probe with 1 m screened cable
HI 7004M pH 4.01 buffer solution, 230 ml bottle
HI 7006M pH 6.86 buffer solution, 230 ml bottle
HI 7007M pH 7.01 buffer solution, 230 ml bottle
HI 7009M pH 9.18 buffer solution, 230 ml bottle
HI 7010M pH 10.01 buffer solution, 230 ml bottle
HI 70300M Storage solution, 230 ml bottle
HI 7061M Cleaning solution, 230 ml bottle
HI 7091M Reducing pretreatment solution, 230 ml bottle
HI 7092M Oxidizing pretreatment solution, 230 ml bottle
HI 731326 Calibration screwdriver (20 pcs)
HI 76405 Electrode holder
Consult the Hanna General Catalog for a complete and
wide selection of electrodes.
Hanna Instruments reserves the right to modify the design, construction
and appearance of its products without advance notice.
RecommendationsforUsers
Before using this product, make sure that it is entirely suitable for the environment in which it
isused. Operationof thisinstrument inresidential areacould causeunacceptableinterferenceto
radioand TVequipment,requiring theoperator totakeall necessarystepstocorrectinterference.
The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid
touching this glass bulb at all times.
To maintain the EMC performance of equipment, the recommended cables noted in the user's
manual must be used. Any variation introduced by the user to the supplied equipment may
degrade the instruments' EMC performance.
Toavoidelectricalshock,donot usetheseinstruments whenvoltagesatthe measurementsurface
exceed24Vacor 60Vdc.Toavoiddamage orburns,donot performanymeasurementinmicrowave
ovens.

OPERATIONAL GUIDE
IST83141 12/04
The meter is supplied complete with a 9V battery. Remove the
battery compartment cover on the back of the meter, install the
battery while paying attention to its polarity.
Always remove the electrode protective cap before taking any
measurements. If the electrode has been left dry, soak the tip in
HI 70300 Storage Solution for half an hour to reactivate it.
Connect the pH electrode and the temperature probe to the
proper connectors on the top of the instrument.
Turn the meter ON by pressing the ON/OFF key.
To take pH measurements simply sub-
merge the pH electrode (at least 4cm/1½")
and the temperature probe (as close as
possible to the electrode) into the sample to
be tested.
The temperature probe can be used independently to take
temperature measurements, or it can be used in conjunction
with the pH electrode to utilize the meter's ATC capability.
Select the pH mode. Shake briefly and wait
a couple of minutes for the reading to stabi-
lize. The display will show the pH value
automatically compensated for temperature
variations.
In order to take accurate pH measurements, make sure that the
instrument has been calibrated for pH before use.
If measurements are taken in different samples successively, it is
recommended to rinse the electrode thoroughly to avoid cross-
contamination. After cleaning, rinse the electrode with some of the
sample to be measured.
To take temperature measurements make sure the tem-
perature probe is connected to the meter,
immerse it in the sample to be measured and
press the °C key to enter the temperature
mode.
Note: If the temperature probe is not connected, the pH
reading will be compensated at 25°C.
To take ORP (mV) measurements connect an ORP elec-
trode (optional) to the BNC connector on the top of the meter,
submerge the tip (at least 4 cm/1½") into
the solution, enter the "mV" mode by press-
ing the mV key and wait a few minutes for
the reading to stabilize.
The ORP (mV) and temperature ranges are factory cali-
brated. Contact the nearest Hanna Service Center for
recalibration, if needed.
For greatest accuracy, frequent pH calibration of the instrument
is recommended. The instrument should be recalibrated for pH:
a) Whenever the pH electrode is replaced.
b) At least once a month.
c) After testing aggressive chemicals.
d) Where extreme accuracy is required.
Preparation
Pour small quantities of pH7.01 (HI 7007) and pH4.01 (HI 7004)
buffer solutions into two clean beakers.
For accurate calibration use two beakers for each buffer solution,
the first one for rinsing the tip of the electrode, the second one for
calibration. In this way contamination of the buffers is minimized.
To obtain accurate readings, use pH7.01 (HI 7007) and pH4.01
(HI 7004) buffers for measuring acidic samples, or pH7.01
(HI 7007) and pH10.01 (HI 7010) for alkaline measurements.
If a calibration with NBS standards is needed, use pH6.86
(HI 7006) instead of pH7.01 and pH9.18 (HI 7009) instead of
pH10.01.
Procedure
• Connect pH electrode and temperature probe to the meter
and switch it ON.
• Remove the protective cap, rinse the tips of pH electrode and
temperature probe with some pH7.01 solution. Immerse them
into a pH7.01 buffer solution, stir gently and wait a couple of
minutes for stable reading.
Note: The electrode should be submerged approximately 4 cm
(1½") into the solution and the temperature probe should
be located as close as possible to the electrode.
• Press the °C key to display
the temperature of the
buffer (e.g. 20°C).
• Press the pH key to read pH values. Stir
gently and wait for a couple of minutes.
• Adjust the OFFSET trimmer on the lower left of the front panel
until LCD shows the pH value at the noted temperature.
CALIBRATION BATTERY REPLACEMENT
When the battery becomes weak, the meter
displays a blinking additional decimal point
on the left side of the LCD.
When the low battery indicator appears only a few hours of
battery life is remaining. A low battery level may also result in
unreliable measurements. It is recommended to replace the
battery immediately. Replacement must only take place in a
non-hazardous area using an alkaline 9V battery.
Unscrew the 3 screws on the back of the meter, remove the
battery cover and replace the battery while paying attention
to its polarity.
TEMP pH VALUES
°C 4.01 7.01 10.01
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
4.01
4.00
4.00
4.00
4.00
4.01
4.02
4.03
4.04
4.05
4.06
4.07
4.09
4.11
4.12
7.13
7.10
7.07
7.04
7.03
7.01
7.00
6.99
6.98
6.98
6.98
6.98
6.98
6.99
6.99
10.32
10.24
10.18
10.12
10.06
10.01
9.96
9.92
9.88
9.85
9.82
9.79
9.77
9.76
9.75
pH VALUES AT
VARIOUS TEMPERATURES
•Rinse and immerse the pH electrode in pH4.01 or pH10.01
buffer (2nd calibration point) and stir gently.
• Wait a couple of minutes and adjust the SLOPE trimmer on
the lower right of the front panel until the LCD shows the pH
value at the noted temperature.
The pH calibration is now complete.
ºC
CE DECLARATION OF CONFORMITY
pH
pH