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 nec-
essary information for the correct use of the
instrument, as well as a precise idea of its
versatility in a wide range of applications.
These instruments are in compliance with
directives EN 50081-1 and 50082-1.
Preliminary Examination ............................ 1
General Description ................................... 1
Mechanical Dimensions ............................. 3
Functional Description HI 8510 .................. 4
Functional Description HI 8512 .................. 7
Functional Description HI 8710 ................ 10
Functional Description HI 8711 ................ 14
Functional Description HI 8720 ................ 18
Functional Description HI 931500 ............ 22
Functional Description HI 931501 ............ 24
Functional Description HI 932500 ............ 27
Specifications HI 8510 and HI 8512 ......... 29
Specifications HI 8710 and HI 8711 ......... 30
Specifications HI 8720 and HI 931500 ..... 31
Specifications HI 931501 and HI 932500 . 32
Initial Preparation ..................................... 33
Operational Guide .................................... 36
pH Calibration .......................................... 40
ORP Calibration ....................................... 42
pH Values at Various Temperature ........... 43
pH Diagnostic Tests.................................. 44
ORP Diagnostic Tests .............................. 46
LED Indication.......................................... 47
Taking Redox Measurements ................... 48
Electrode Conditioning and Maintenance. 51
Suggested Installations ............................ 56
Accessories .............................................. 58
Warranty................................................... 64
CE Declaration of Conformity .................. 65
TABLE OF CONTENTS
ISO 9000 Certified
Company since 1992
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