2
ISO 9000 Certified
Company since 1992
TABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTS
TABLE OF CONTENTS
Dear Customer,
Thank you for choosing a Hanna Product.
Please read this instruction manual carefully before using the instru-
ment. This manual will provide you with the necessary information for
a correct use of the instrument, as well as a more precise idea of its
versatility. If you need more technical information, do not hesitate to
e-mail us at [email protected].
These instruments are in compliance with the
directives
EN 50081-1, 50082-1 and 61010-1.
PRELIMINARY EXAMINATION ........................................................ 3
GENERAL DESCRIPTION ................................................................ 3
MECHANICAL LAYOUTS................................................................. 4
FUNCTIONAL DIAGRAM HI 9913 .................................................. 6
FUNCTIONAL DIAGRAM HI 9923 .................................................. 9
FUNCTIONAL DIAGRAM HI 9935 ................................................ 12
CONNECTIONS & WIRING .......................................................... 14
NORMAL OPERATION & MEASUREMENT ..................................... 19
pH CALIBRATION ....................................................................... 20
CONDUCTIVITY/TDS CALIBRATION................................................ 21
ADJUSTMENT OF SETPOINT(S) ................................................... 23
PROPORTIONAL CONTROL .......................................................... 24
CONDUCTIVITY DEAD BAND (HI 9923) ........................................ 26
OVERDOSAGE TIMERS ................................................................ 26
pH VALUES AT VARIOUS TEMPERATURES ................................... 27
pH ELECTRODE CONDITIONING & MAINTENANCE ......................... 28
CONDUCTIVITY/TDS PROBE CLEANING & MAINTENANCE ............... 29
SUGGESTED INSTALLATIONS FOR pH ELECTRODE ........................ 30
SUGGESTED INSTALLATIONS FOR EC/TDS PROBE ........................ 31
ACCESSORIES ............................................................................. 33
WARRANTY ................................................................................ 34
CE DECLARATION OF CONFORMITY .............................................. 35
