Teledyne 3000ZA2G - Zirconium oxide analyzer - Manual (Page 45)

Trace Oxygen Analyzer Operation
Teledyne Analytical Instruments 33
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, and 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 auto ranging and manual override
 Setting up an auto-cal
 Assigning a new password
However, the instrument can still be used for analysis or for
initiating a self- test without entering the password.
If you have decided not to employ password security, use the
default password TAI. This password will be displayed automatically by
the microprocessor. The operator just presses the Enter key to be
allowed total access to the instrument’s features.