Manual

Oxygen Analyzer Part I: Control Unit
Part I: 4-5
Teledyne Analytical Instruments
4.3.2 Setting up an Auto-Cal
When the proper calibration gases are connected (see chapter 3, instal-
lation), the Analyzer can cycle itself through a sequence of steps that auto-
matically zero and span the instrument.
Note: If you require highly accurate Auto-Cal timing, use external
Auto-Cal control where possible. The internal clock in the
Model 3010PAC is accurate to 2-3 %. Accordingly, internally
scheduled calibrations can vary 2-3 % per day.
To setup an Auto–Cal cycle:
Choose System from the Function buttons. The LCD will display five
subfunctions.
Contrast Auto—Cal
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Use < > arrows to blink Auto—Cal, and press Enter. A new screen for
Span/Zero set appears.
Span OFF Nxt: 0d 0h
Zero OFF Nxt: 0d 0h
Press < > arrows to blink Span (or Zero), then press Enter again. (You
won’t be able to set OFF to ON if a zero interval is entered.) A Span
Every ... (or Zero Every ...) screen appears.
Span Every 0 d
Start 0 h from now
Use
∆∆
∆∆
∆∇ arrows to set an interval value, then use < > arrows to move to
the start-time value. Use
∆∆
∆∆
∆∇ arrows to set a start-time value.
To turn ON the Span and/or Zero cycles (to activate Auto-Cal): Press
System again, choose Auto—Cal, and press Enter again. When the Span/
Zero values screen appears, use the < > arrows to blink the Span (or Zero)
OFF/ON field. Use
∆∆
∆∆
∆∇ arrows to set the OFF/ON field to ON. You can
now turn these fields ON because there is a nonzero span interval defined.
4.3.3 Password Protection
If a password is assigned, then setting the following system parameters
can be done only after the password is entered: span and zero settings,
alarm setpoints, analysis range definitions, switching between autoranging
and manual override, setting up an auto-cal, and assigning a new password.
However, the instrument can still be used for analysis or for initiating a self-
test without entering the password.
Contrast Function is DISABLED
(Refer to Section 1.3)