Table Of Contents - Hanna Instruments HI 720 Instruction Manual

Conductivity process controller with inductive probe

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WARRANTY .....................................................................................................4

PRELIMINARY EXAMINATION ............................................................................5

MODEL IDENTIFICATION ..................................................................................5

GENERAL DESCRIPTION & THEORY OF OPERATION .......................................... 6

SPECIFICATIONS ..............................................................................................9

FUNCTIONAL DESCRIPTION ........................................................................... 10

INSTALLATION ................................................................................................ 12

OPERATIONAL GUIDE .................................................................................... 14

• SETUP MODE .......................................................................................... 14

• CALIBRATION MODE ............................................................................... 34

• CONTROL MODE .................................................................................... 37

• IDLE MODE ............................................................................................. 43

• LAST CALIBRATION DATA VIEWING MODE ................................................. 43

• DIAGNOSTIC MODE ............................................................................... 44

TEMPERATURE COMPENSATION ..................................................................... 46

CONCENTRATION CURVES ............................................................................ 48

HOLD MODE ................................................................................................ 50

IN-LINE CLEANING ........................................................................................ 52

COMMUNICATION ........................................................................................ 54

• PC COMMUNICATION ............................................................................ 54

• SHORT MESSAGING SERVICE (SMS) .......................................................... 67

• MODEM CONNECTION .......................................................................... 71

ERRORS - FAULT CONDITIONS ....................................................................... 73

ALARM - ERROR CONFIGURATION ................................................................. 74

SELFTEST PROCEDURES .................................................................................. 77

ACCESSORIES ................................................................................................ 80

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