3
2
TABLE OF CONTENTS
PRELIMINARY EXAMINATION . . . . . . . . . . . . . . . . . . 4
GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . 4
FUNCTIONAL DESCRIPTION . . . . . . . . . . . . . . . . . . 6
MECHANICAL DIMENSIONS . . . . . . . . . . . . . . . . . . 7
SPECIFICATIONS pH 502 & mV 602 . . . . . . . . . . . . . 8
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
SETUP MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CONTROL MODE . . . . . . . . . . . . . . . . . . . . . . . . . 17
IDLE MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
ANALOG OUTPUT . . . . . . . . . . . . . . . . . . . . . . . . 26
RS 485 COMMUNICATION . . . . . . . . . . . . . . . . . . 28
CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
LAST CALIBRATION DATA . . . . . . . . . . . . . . . . . . . . 48
STARTUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
FAULT CONDITIONS AND SELFTEST PROCEDURES . . 52
pH VALUES AT VARIOUS TEMPERATURES . . . . . . . . . 56
ELECTRODE CONDITIONING AND MAINTENANCE . . 57
TAKING REDOX MEASUREMENTS . . . . . . . . . . . . . . 61
ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
CE DECLARATION OF CONFORMITY . . . . . . . . . . . 70
© 1999 Hanna Instruments
All rights are reserved. Reproduction in whole or in part is prohibited without the written
consent of the copyright owner.
Dear Customer,
Thank you for choosing a Hanna Product.
Please read this instruction manual carefully before using the
instrument. It will provide you with the necessary information
for the correct use of the instrument, as well as a precise idea
of its versatility.
If you need additional technical information, do not hesitate
to e-mail us at
These instruments are in compliance with the
directives.
MODEL IDENTIFICATION
The models
pH502 XYZ-
α
αα
αα
are pH controllers, while the mod-
els
mV602 XYZ-
α
αα
αα
are ORP controllers.
The meaning of the last letters is according to the following
codifications:
