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Instruction Manual

HI8314

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.

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.

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.

Summary of Contents for HI 8314

Page 1: ...Instruction Manual HI8314 Portable pH mV ºC meter ...

Page 2: ...ation 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 measure...

Page 3: ...lectrode 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 i...

Page 4: ...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 rep...

Page 5: ...isplay 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 m...

Page 6: ...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 therma...

Page 7: ... panel until the LCD shows the pH value at the noted temperature Press CAL The pH calibration is now complete 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 7...

Page 8: ...tection All rights are reserved Reproduction in whole or in part is prohibited without the written consent of the copyright owner 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 no...

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