Hanna Instruments HI 9910 - Manual (Page 2)

2
PRELIMINARY EXAMINATION ..................................................... 3
GENERAL DESCRIPTION ............................................................. 3
MECHANICAL LAYOUTS ............................................................. 4
FUNCTIONAL DIAGRAM HI 9910 ............................................... 6
FUNCTIONAL DIAGRAM HI 9911 ............................................... 9
FUNCTIONAL DIAGRAM HI 9920 ............................................. 12
CONNECTIONS & WIRING ....................................................... 14
NORMAL OPERATION & MEASUREMENT ................................... 19
pH CALIBRATION ................................................................... 20
ORP CALIBRATION ................................................................. 22
ADJUSTEMENT OF SETPOINT(S) ............................................... 23
PROPORTIONAL CONTROL ...................................................... 26
OVERDOSAGE TIMER ............................................................... 29
pH VALUES AT VARIOUS TEMPERATURES ................................. 30
REDOX MEASUREMENT (HI 9920) ............................................ 31
ELECTRODE CONDITIONING & MAINTENANCE ............................. 33
SUGGESTED INSTALLATIONS FOR pH/ORP ELECTRODES .............. 34
ACCESSORIES ......................................................................... 35
WARRANTY ............................................................................ 37
OTHER PRODUCTS FROM HANNA ............................................ 38
CE DECLARATION OF CONFORMITY ........................................... 39
ISO 9000 Certified
Company since 1992
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Dear Customer,
Thank you for choosing a Hanna Product.
Please read this instruction manual carefully before using the
instrument. 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 informa-
tion, 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.