Password Protection - Teledyne 2010A Operating Instructions Manual

4 Operation
Use < > arrows to blink
for ZERO/SPAN set appears.
Press < > arrows to blink
(You won't be able to set OFF to ON if a zero interval is entered.) A Span
Every ... (or Zero Every ...) screen appears.
Use Δ Δ Δ Δ Δ ∇ arrows to set an interval value, then use < > arrows to move to the
start-time value. Use Δ Δ Δ Δ Δ ∇ 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
ZERO/SPAN values screen appears, use the < > arrows to blink the ZERO
(or SPAN) and press Enter to go to the next screen. Use < > to select OFF/
ON field. Use Δ Δ Δ Δ Δ ∇ 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

Before a unique password is assigned, the system assigns TAI by default.
This password will be displayed automatically. The operator just presses the
Enter key to be allowed total access to the instrument's features.
If a password is assigned, then setting the following system parameters can
be done only after the password is entered: alarm setpoints, assigning a new
password, range/application selections, and curve algorithm linearization.
(APPLICATION and ALGORITHM are covered in the programming section.)
However, the instrument can still be used for analysis or for initiating a self-test
without entering the password. To defeat security the password must be
changed back to TAI.
NOTE: If you use password security, it is advisable to keep a copy of
the password in a separate, safe location.
4-6 Part I
, and press Enter. A new screen
AUTO—CAL
ZERO in Ød Øh off
SPAN in Ød Øh off
ZERO (or SPAN
Zero schedule: OFF
Day: Ød Hour: Øh
and press Enter again. When the
,
Teledyne Analytical Instruments
), then press Enter again.
Model 2010A