Instruction Manual
HI 91 10
Portable W aterproof
Wine pH 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 purpose and maintained according to instructions. The
probes are warranted for a period of six
months.
This warranty is limited to repair or replacement
free of charge. Damage due to accidents, misuse,
tampering or lack of prescribed maintenance 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 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 Customer Service department and then send it with
shipment costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection.
All rights are reserved. Reproduction in whole or in
part is prohibited without the written consent of the
copyright owner.
This Instrument is in Compliance
with the CE Directives
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 necessary information for the correct use of the instrument.
This instrument is in compliance with the
directives.
PRELIMINARY EXAMINATION
Remove the instrument from the packing material and examine it carefully to make sure
that no damage has occurred during shipment. If noticeable damage is evident, notify
your dealer.
Note: Save all packing material until you
are sure that the instrument functions
correctly. All defective items must be
returned in the original packing together with the supplied accessories.
GENERAL DESCRIPTION
HI 9110 is a portable, waterproof pH meter
with a special pH electrode (HI 1048B),
which has been designed for application in
must and wine analysis.
This meter provides simple manual temperature compensation and pH calibration
over two points (pH3 and pH7).
The calibration trimmers are sealed behind
a protective cover, so that they cannot be
accidentally moved.
The meter is supplied with:
1048B PTFE junction sleeve, glass-body
• HI
pH electrode with BNC connector and 1 m
(3.3') cable
• ChecktempC Thermometer
• HI 50003 pH 3.00 buffer, 20 mL sachet
• HI 70007 pH 7.01 buffer, 20 mL sachet
• HI 700635 Cleaning solution for incrusted
wine deposits, 20 mL sachet (2 pcs.)
• HI 700636 Cleaning solution for wine stains,
20 mL sachet (2 pcs.)
• 4x1.5V AA alkaline batteries
• calibration screwdriver & instruction manual
• plastic carrying case.
FUNCTIONAL DESCRIPTION
1. Battery cover
2. BNC plug
3. pH7 Calibration trimmer
4. pH3 Calibration trimmer
5. Temperature setting trimmer
6. Mode indicator
7. Liquid Crystal Display
8. "ON/OFF" key, to turn the meter ON and
OFF
9. "pH/°C SET" key, to select pH measurement or manual temperature setting mode
SPECIFICATIONS
Range
Resolution
Accuracy
(@20°C/68°F)
Typical EMC
Deviation
Temperature
Compensation
pH Calibration
through pH3 and pH7 trimmers
Electrode (included)
Battery Ty pe
Battery Life
2000 hours of continuous use
Environment
Dimensions
196 x 80 x 60 mm (7.7 x 3.1 x 2.4”)
Weight
Hanna Instruments reserves the right to modify
the design, construction and appearance of its
products without advance notice.
0.00 to 14.00 pH
±0.02 pH
±0.05 pH
Manual, through trimmer,
from 0 to 100°C
Manual, 2-point,
HI 1048B pH-electrode
with BNC connector
4 x 1.5V AA / IEC LR6
0 to 50°C (32 to 122°F);
RH 100%
320 g (1 1.3 oz.)
ISTR9110 06/03
0.01 pH
OPERATIONAL GUIDE
Initial preparation
Install the supplied batteries by following the instructions in the "Battery replacement" section.
Connect the HI 1048B pH electrode to the BNC
plug on the top of the meter.
Taking measurements
• Turn the instrument ON.
• Remove the electrode protective cap, sub-
merge the tip (4cm/1.5") into the sample to
be tested and allow the reading to stabilize.
• Since pH readings are directly affected by
temperature, for accurate measurements,
follow the instructions for manual temperature compensation. If the temperature of
the sample is significally different from that
at which the electrode was stored, allow a
few minutes to reach thermal equilibrium.
Notes:
• Before taking any measurements:
- make sure the meter is calibrated.
- rinse the electrode thoroughly with some
of the sample to be tested, to avoid cross
contamination.
• After use, switch the instrument off, clean
the electrode with HI 70635 and/or HI 70636
solution (see "Accessories" section) and
then rinse with clean water. Pour a few
drops of HI 70300 storage solution in the
protective cap and replace it before storing
the electrode.
• It is recommended to always keep the electrode wet.
Manual temperature compensation
• Press the "pH/°C SET" key to select the
manual temperature mode.
• Remove the protective cap on
the top of the meter to access
the trimmers.
• Measure the temperature of the
solution with the supplied
ChecktempC thermometer.
• Using the supplied screwdriver, adjust the
"T" trimmer to display the measured temperature value, e.g. 15.0°C.
• Press the "pH/°C SET" key to return to the
normal measurement mode.
CALIBRATION
• Remove the electrode protective cap and
rinse with some pH 7.01 solution.
• Immerse the electrode tip (approximately 4cm/1.5") and the
ChecktempC thermometer in
pH 7.01 buffer solution.
• Stir gently and wait for the reading to stabilize.
Note: Place the ChecktempC thermometer
close to the pH electrode.
• Record the buffer temperature (e.g. 10°C) and
adjust the "T" trimmer accordingly.
• Using the supplied screwdriver, adjust the
"pH7" trimmer until the meter displays the
pH value at the buffer temperature (see table),
e.g. pH 7.07 at 10°C.
• Rinse first with clean water and then with a
small amount of pH 3.00 buffer. Dip the electrode and the ChecktempC into the pH 3.00
buffer, stir gently and wait for the reading to
stabilize.Record the buffer temperature and
adjust the "T" trimmer accordingly.
• Using the supplied screwdriver, adjust the
"pH3" trimmer until the meter displays the
pH value at the buffer temperature (see table),
e.g. pH 3.04 at 10°C.
The calibration is now complete.
Note: Once the calibration procedure is com-
pleted, replace the trimmer cover and tighten
it to ensure a watertight seal.
pH VALUES AT VARIOUS TEMPERATURES
pH3.00
3.08
3.06
3.04
3.02
3.01
3.00
3.00
3.00
2.99
2.99
3.00
3.00
3.00
3.00
3.00
Buffer
pH7.01
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
Temp.
°C
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
BATTERY REPLACEMENT
When batteries become weak,
the "V" tag lights up on the display to alert the user that only a
few hours of working time is left.
If the battery level is low enough to cause erroneous readings, the Battery Error Prevention
System (BEPS) turns the meter off.
Battery replacement must only take place in a
non-hazardous area using 1.5V AA alkaline
type.
Unscrew the two screws on the
meter back, remove the battery
compartment cover and replace
all the four batteries with new
ones, while paying attention to
the correct polarity . Reattach the
cover and tighten the two
screws.
ACCESSORIES
HI 1048B PTFE junction sleeve, glass-
body pH electrode with BNC
connector and 1 m (3.3') cable
ChecktempC Electronic thermometer (range:
-50 to 150°C)
HI 50003P pH 3.00 technical buffer solution,
20 mL sachet (25 pcs.)
HI 5003L pH 3.00 technical buffer solution,
500 mL bottle
HI 70007P pH 7.01 buffer solution, 20 mL
sachet (25 pcs.)
HI 7007L pH 7.01 buffer solution, 500 mL
bottle
HI 70300M Storage solution, 230 mL bottle
HI 70300L Storage solution, 460 mL bottle
HI 7061M General purpose cleaning so-
lution, 230 mL bottle
HI 7061L General purpose cleaning so-
lution, 460 mL bottle
HI 700635P Cleaning solution for incrusted
wine deposits, 20 mL sachet (25
pcs.)
HI 70635M Cleaning solution for incrusted
wine deposits, 230 mL bottle
HI 70635L Cleaning solution for incrusted
wine deposits, 460 mL bottle
HI 700636P Cleaning solution for wine
stains, 20 mL sachet (25 pcs.)
HI 70636M Cleaning solution for wine
stains, 230 mL bottle
HI 70636L Cleaning solution for wine
stains, 460 mL bottle
HI 721312 Hard carrying case
HI 76405 Electrode holder