Hanna Instruments HI 8314 User manual

Instruction Manual
HI8314
Portable pH/mV/ºC meter
Dear Customer,
Thank you for choosing a Hanna Instruments 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 examine
it carefully to make sure that no damage has occurred during
shipment. If there is any damage, please contact your local
Hanna Instruments Office.
The meter is supplied complete with:
• HI1217D pH electrode
• calibration and cleaning solution sachets
• 9 V battery, calibration screwdriver and instructions
• quality certificate
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
HI8314 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, HI8314 features a low battery indicator that alerts
the user when the battery needs to be replaced.
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Hanna Instruments reserves the right to modify the design,
construction or appearance of its products without advance notice.
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
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.
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
(@20 °C/ 68 °F)
±0.01 pH
±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 (*) HI1217D (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.)
BATTERY REPLACEMENT
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 measure-
ments, 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.
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OPERATIONAL GUIDE
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 HI70300 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 (HI7007) and pH4.01
(HI7004) 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 (HI7007) and pH4.01
(HI7004) buffers if you are going to measure acidic samples,
or pH7.01 (HI7007) and pH10.01 (HI7010) for alkaline
measurements.
If you need to calibrate the meter to NIST standards, use
pH6.86 (HI7006) instead of pH7.01 and pH9.18 (HI7009)
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 auto-
matically 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
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IST8314 08/18
ACCESSORIES
pH BUFFER VALUES
AT VARIOUS TEMPERATURES
• 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.
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 your local Hanna Instruments Office.
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.
TEMP pH VALUES
°C 4.01 7.01 10.01
0 4.01 7.13 10.32
5 4.00 7.10 10.24
10 4.00 7.07 10.18
15 4.00 7.04 10.12
20 4.00 7.03 10.06
25 4.01 7.01 10.01
30 4.02 7.00 9.96
35 4.03 6.99 9.92
40 4.04 6.98 9.88
45 4.05 6.98 9.85
50 4.06 6.98 9.82
55 4.07 6.98 9.79
60 4.09 6.98 9.77
65 4.11 6.99 9.76
70 4.12 6.99 9.75
75 4.14 7.00 9.74
80 4.16 7.01 9.73
85 4.17 7.02 9.74
90 4.19 7.03 9.75
95 4.20 7.04 9.76
Before using this product, make sure it is entirely suitable for your
specific application and for the environment in which it is used. Any
variation introduced by the user to the supplied equipment may degrade
the meters’ performance. For yours and the meter’s safety do not use
or store the meter in hazardous environments.
RECOMMENDATIONS FOR USERS
HI1217D
Double junction, gel filled pH-electrode with built-in
temperature sensor, DIN connector and 1 m (3.3’)
cable
HI3618D Platinum ORP-electrode with built-in temperature
sensor, DIN connector and 1 m (3.3’) cable
HI4619D Gold ORP-electrode with built-in temperature sensor, DIN
connector and 1 m (3.3’) cable
HI7004M pH4.01 buffer solution, 230 mL bottle
HI7007M pH7.01 buffer solution, 230 mL bottle
HI7010M pH10.01 buffer solution, 230 mL bottle
HI70300M Storage solution, 230 mL bottle
HI7061M General cleaning solution, 230 mL bottle
HI7091M Reducing pretreatment solution, 230 mL bottle
HI7092M Oxidizing pretreatment solution, 230 mL bottle
HI731326 Calibration screwdriver (20 pcs)
HI76405 Electrode holder
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