User's Manual
2
ISO 9000 Certified
Company since 1992
TABLE OF CONTENTSTABLE OF CONTENTS
TABLE OF CONTENTSTABLE 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 tech@hannainst.com.
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