Hanna Instruments HI 9931 - Manual (Page 2)

2
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.
ISO 9000 Certified
Company since 1992
PRELIMINARY EXAMINATION ........................................................ 3
GENERAL DESCRIPTION ................................................................ 3
MECHANICAL LAYOUTS................................................................. 4
FUNCTIONAL DIAGRAM HI 9931 .................................................. 6
FUNCTIONAL DIAGRAM HI 9934 .................................................. 9
CONNECTIONS & WIRING .......................................................... 12
NORMAL OPERATION & MEASUREMENT ..................................... 15
CALIBRATION ............................................................................. 16
ADJUSTEMENT OF SETPOINT ...................................................... 17
PROPORTIONAL CONTROL .......................................................... 18
OVERDOSAGE TIMER .................................................................. 20
PROBE CLEANING & MAINTENANCE ............................................ 20
SUGGESTED INSTALLATIONS FOR EC/TDS PROBES....................... 21
ACCESSORIES ............................................................................. 23
WARRANTY ................................................................................ 25
OTHER PRODUCTS FROM HANNA ............................................... 26
CE DECLARATION OF CONFORMITY .............................................. 27
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