Instruction Manual Model 3100 Analyzer
Manual P/N: C5-06-4900-16-0
Manual file name: MN-A-0005, Rev. C
Page 15
3 Operation
3.1 Overview
The Model 3100 has two types of operational modes – User-type, and System-type. User modes are
initiated and controlled by the user and used to setup and maintain the analyzer. The User modes are:
Calibration, Set/view Alarm-1, Set/view Alarm-2, View Active Faults, and Setup. Operating modes are
accessed automatically by the analyzer during normal operation, according to its programming and
configuration parameters. The operating modes are: Self-Test & Warm-up, Run, Alarm-1 Active, Alarm-2
Active, and Fault Active (see Figure 13).
3.2 User modes
At any time, the user can initiate any of the user modes either from the control panel or through the
service port. Control panel access of the Calibration, Set/view Alarm-1, Set/view Alarm-2 and View Active
Faults modes will be covered in this section. System setup mode and user access via the service port will
be covered in section 4.1.
The user modes -- Calibration, Set/view Alarm-1, Set/view Alarm-2 and View Active Faults -- are
accessed serially via the control panel, by repeatedly pressing and releasing the “MODE” key. When a
user mode is accessed via the control panel, the Model 3100 aborts any system mode active and holds
the state of Alarm-1 and Alarm-2 outputs until the user returns the unit to “RUN” mode.
Note: All analog electrical outputs from the Model 3100 analyzer follow the oxygen readout displayed on
the 7-segment LED display during the calibrate, set/view alarm-1, and set/view alarm-2 modes.
Fig. 13, Operational modes
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