Teledyne 3020T - Manual (Page 39)

Trace Oxygen Analyzer Operation 4
4-3 Teledyne Analytical Instruments
2 PWD : Used to establish password protection or change the
existing password.
3 LOGOUT : Logging out prevents unauthorized tampering with
the analyzer settings.
4 VERSION : Displays Manufacturer, Model, and Software version
of the instrument.
5 SELF-TEST : The instrument performs a self-diagnostic routine
to check the integrity of the power supply, output boards and
amplifiers.
6 SPAN : Set up and/or start a span calibration.
7 ZERO : start a zero calibration.
8 ALARMS: Used to set the alarm setpoints and determine
whether each alarm will be active or defeated, HI or LO acting,
latching or not, and failsafe or not.
Figure 4-1: Modes and Functions
Contrast Function is DISABLED
(Refer to Section 1.6)