Hach ORBISPHERE 3650 Atex User Manual page 4

Table of Contents
5.4.4 Locking out the instrument's CAL button...........................................................................37
5.4.5 Sensor calibration range checking ....................................................................................37
5.4.6 Entering a span gas value.................................................................................................37
5.4.7 Dual use (model 3650Ex/113 only) ...................................................................................38
Section 6 Calibrations
6.1 Atmospheric pressure equilibrium ..............................................................................................39
6.2 Pressure calibration....................................................................................................................39
6.3 Calibration range checking.........................................................................................................39
6.4 Sensor calibration.......................................................................................................................40
6.4.1 Calibration in a span gas...................................................................................................40
6.4.2 Calibration in line...............................................................................................................41
6.4.3 Calibration in air (oxygen sensors only) ............................................................................42
Section 7 Maintenance and Troubleshooting
7.1 Maintenance...............................................................................................................................43
7.1.1 Instrument .........................................................................................................................43
7.1.2 Sensor ...............................................................................................................................43
7.2 Troubleshooting..........................................................................................................................43
7.2.1 Serial test ..........................................................................................................................43
7.2.2 Keyboard test ....................................................................................................................43
7.2.3 Display test........................................................................................................................44
7.2.4 Clock settings ....................................................................................................................44
7.2.5 Analog voltages view.........................................................................................................45
7.2.6 Measurements view ..........................................................................................................45
Section 8 Part Lists
8.1 Instrument configurations ...........................................................................................................47
8.2 Spare parts.................................................................................................................................47
8.3 Accessories ................................................................................................................................48
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