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Model LXT-230 Instruction Manual / 2
TABLE OF CONTENTS
UNPACKING THE INSTRUMENT.................................................................................... 4
1.0 GENERAL DESCRIPTION........................................................................................ 4
1.1 Membrane Switches .......................................................................................... 4
1.2 Digital Display .................................................................................................. 4
1.3 Automatic Buffer Calibration............................................................................... 4
1.4 Back To Factory Calibration ................................................................................ 4
1.5 Current Output ................................................................................................. 4
1.6 Temperature Conversion .................................................................................... 4
1.7 PID Output (Optional)........................................................................................ 5
1.8 Dual Input (Optional) ........................................................................................ 5
1.9 Dual Output (Optional) ...................................................................................... 5
1.10 Three Outputs (Optional).................................................................................. 5
1.11 Optional Software............................................................................................ 5
1.11.1 Security Access ......................................................................................... 5
1.11.2 Differential Output..................................................................................... 5
1.11.3 Ratio Output ............................................................................................. 5
1.11.4 Averaged Outputs...................................................................................... 5
1.12 Identification .................................................................................................. 5
2.0 INSTALLATION..................................................................................................... 6
2.1 Mounting.......................................................................................................... 6
2.2 Power Wiring .................................................................................................... 6
2.3 Sensor Wiring................................................................................................... 6
3.0 FAMILIARIZATION................................................................................................ 7
3.1 Key Functions ................................................................................................... 7
3.1.1 Menu Selection Keys.................................................................................... 7
3.1.2 Calibrate Keys............................................................................................. 7
3.2 Display Menus and Screens ................................................................................ 7
3.2.1 Contrast Menu ............................................................................................ 7
3.2.2 Main Menu.................................................................................................. 8
3.2.3 Electrode Diagnostic Screen.......................................................................... 8
3.2.4 Electrode Standardization Menu .................................................................... 8
3.2.5 Electrode Span Menu ................................................................................... 8
3.2.6 Output Calibration Menu............................................................................... 9
3.2.7 Temperature Calibration Menu ...................................................................... 9
4.0 SENTINEL DIAGNOSTICS .................................................................................... 10
4.1 Diagnostic set up and configuration menus......................................................... 10
4.1.1 Main Menu................................................................................................ 10
4.1.2 SENTINEL DIAGNOSTIC SCREEN ................................................................. 10
5.0 MAINTENANCE................................................................................................... 12
5.1 Cleaning ........................................................................................................ 12
5.2 Replacement of the Microprocessor ................................................................... 12
6.0 CALIBRATION .................................................................................................... 13
6.1 Manual Output Mode........................................................................................ 13
6.2 Contrast Adjustment........................................................................................ 13
6.3 One-Point Buffer Calibration (Standardize) ......................................................... 13
6.4 Two-Point Buffer Calibration (Span)................................................................... 14
6.5 Calibration Using a Grab Sample as a Standard................................................... 15