Hanna Instruments HI 8314 User manual

Instruction Manual
HI 8314
Portable pH/mV/ºC meter
www.hannainst.com
Hanna Instruments reserves the right to modify the design, construction or
appearance of its products without advance notice.
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 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
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 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.
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner.
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].
The instrument is in compliance with CE 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 1217D pH electrode
• calibration and cleaning solution sachets
• 9 V battery, calibration 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
GENERAL DESCRIPTION
HI 8314 is an hand-held pH/ mV/ temperature meter
designed to be rugged, easy-to-use, reliable and practical.
It is ideal for education and for measurements on the field.
The pH, mV and temperature ranges are easily selected using
the rubber keyboard on the front panel.
Calibration procedure is very simple with clear help messages
displayed on LCD and adjustments are easily made with two
trimmers on the front panel.
The built-in temperature sensor in the pH electrode allows
automatic temperature compensation of pH readings.
Moreover, HI 8314 features a low battery indicator that
alerts the user when the battery needs to be replaced.
FUNCTIONAL DESCRIPTION SPECIFICATIONS
1) DIN connector for pH or ORP electrode
2) Liquid Crystal Display (LCD)
3) pH key, to display the pH value
4) 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
5) TEMP key, to display the temperature measurement or
to select temperature unit while temperature is
displayed
6) OFFSET trimmer for OFFSET calibration of pH
7) SLOPE trimmer for SLOPE calibration of pH
8) CAL key, to enter pH calibration
9) ON/OFF key, to turn the meter ON and OFF
Range 0.00 to 14.00 pH
±1999 mV
0.0 to 100.0 °C / 32.0 to 212.0°F
Resolution 0.01 pH / 1 mV / 0.1°C (0.1°F)
Accuracy ±0.01 pH
(@20°C/68°F) ±1 mV
±0.4°C / ±0.8°F (excluding probe error)
pH Calibration Manual, 2 point, through trimmers
Offset Calibration ±1 pH
Slope Calibration 80 to 110%
Temperature Compensation
Automatic, 0 to 100°C (32 to 212°F)
Electrode (*) HI 1217D (included)
Battery Type 1 x 9V alkaline
Battery Life 450 hours of continuous use
Environment 0 to 50°C (32 to 122°F);
RH max 95% non-condensing
Auto-Shut off after 8’ of non-use
Dimensions 145 x 80 x 36 mm (5.7 x 3.1 x 1.4")
Weight 230 g (8.1 oz.)
(*) The max. operating temperature of the HI 1217D pH electrode is 80ºC. To
perform measurements at higher temperature use adequate electrodes.
DISPLAY CODE GUIDE
°C or °F symbol indicates the meter is in temperature mode.
pH symbol indicates the meter is in pH mode.
mV symbol indicates the meter is in mV mode.

OPERATIONAL GUIDE
IST8314Z 08/12
INITIAL PREPARATION
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 to the DIN connector on the top of the
instrument.
Turn the meter ON by pressing the ON/OFF key.
The instrument will display all used tags for
few seconds followed by the battery percentage.
TAKING pH MEASUREMENTS
To take a pH measurement simply submerge
the electrode tip (at least 4 cm / 1½") into
the sample to be tested.
Select the pH mode. Shake briefly and wait
a couple of minutes for the reading to
stabilize. 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.
TAKING ORP MEASUREMENTS
Connect the ORP electrode to the DIN
connector on the top of the meter.
To enter the "mV" mode (ORP, Oxidation
Reduction Potential) turn the instrument
ON and press the mV key.
To take the mV measurement of a sample submerge the ORP
electrode tip (at least 4 cm / 1½") into the solution to be tested.
Wait a few minutes for the reading to stabilize.
TAKING TEMPERATURE MEASUREMENTS
Turn the instrument ON, press the TEMP key
and allow the reading to stabilize. To select
temperature unit press TEMP key while in
temperature mode.
Note: If the reading is out of the specific range the range limit
is displayed blinking.
For greatest accuracy, frequent 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 if you are going to measure acidic samples, or
pH7.01 (HI 7007) and pH10.01 (HI 7010) for alkaline
measurements.
If you need to calibrate the meter to NIST standards, use
pH6.86 (HI 7006) instead of pH7.01 and pH9.18 (HI 7009)
instead of pH10.01.
PROCEDURE
•Connect the pH electrode and switch the meter ON.
•Remove the protective cap from the electrode, rinse the tip
with some pH7.01 solution, then immerse the electrode into
a pH7.01 buffer solution; stir gently and wait a couple of
minutes for thermal equilibrium to be reached.
Note: The electrode should be submerged approximately 4 cm
(1½") into the solution.
•Press CAL. The calibration buffer is automatically recognized
and the corresponding help menu for offset /
slope calibration is displayed.
•Press the TEMP key to read the temperature
of the buffer.
•Press the pH key to read pH values. Stir
gently and wait for a couple of minutes.
•In 7.01/6.86 pH adjust the OFFSET trimmer
on the lower left of the front panel until LCD
shows the pH value at the noted temperature.
pH CALIBRATION
BATTERY REPLACEMENT
ACCESSORIES
HI 1217D Double junction, gel filled pH-electrode with built-
in temperature sensor, DIN connector and 1 m
(3.3’) cable
HI 3618D Platinum ORP-electrode with built-in temperature
sensor, DIN connector and 1 m (3.3’) cable
HI 4619D Gold ORP-electrode with built-in temperature sensor,
DIN connector and 1 m (3.3’) cable
HI 7004M pH 4.01 buffer solution, 230 mL bottle
HI 7007M pH 7.01 buffer solution, 230 mL bottle
HI 7010M pH 10.01 buffer solution, 230 mL bottle
HI 70300M Storage solution, 230 mL bottle
HI 7061M General 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
pH BUFFER VALUES
AT VARIOUS TEMPERATURES
This meter is powered by a 9V alkaline battery.
When ‘’BATT’’ tag is displayed blinking
a low battery condition is indicated.
When the low battery indication appears,
only a few hours of working time are left.
It is recommended to replace the battery.
When the battery level is too low to ensure reliable measurements,
the meter turns off. It is recommended to replace the battery
immediately. Battery replacement must only take place in a
nonhazardous area using a 9V alkaline battery.
Unscrew the three screws on the rear of the meter, remove the
battery compartment cover and replace the 9V battery with a
new one, while observing the correct polarity.
Make sure the battery contacts are tight and secure before
replacing the cover.
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
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
7.00
7.01
7.02
7.03
7.04
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
9.74
9.73
9.74
9.75
9.76
TEMP pH VALUES
°C 4.01 7.01 10.01
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
4.14
4.16
4.17
4.19
4.20
•Press pH.
•Rinse and immerse the pH electrode in pH4.01 or pH10.01
buffer (2nd calibration point) and stir gently.
•Press TEMP to read buffer temperature.
•Press pH to display pH reading.
•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.
•Press CAL.
The pH calibration is now complete.
Recommendations for Users
Before using this product, make sure that it is entirely suitable for your specific application
and for the environment in which it is used. Operation of this instrument may cause
unacceptable interferences to other electronic equipment, this requiring the operator to take
all necessary steps to correct interferences. Any variation introduced by the user to the
supplied equipment may degrade the instrument EMC performance. To avoid electrical shock,
do not use this instrument when voltage at the measurement surface exceeds 24 Vac or
60 Vdc. To avoid damages or burns, do not put the instrument in microwave ovens. For yours
and the instrument safety do not use or store the instrument in hazardous environments.