Teledyne 6000A - Photometric analyzer - Manual (Page 29)

Photometric Analyzer Operation 3
Part I 3-5 Teledyne Analytical Instruments
Note: If you require highly accurate AUTO-CAL timing, use external
AUTO-CAL control where possible. The internal clock in the
Model 6000A 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. TheVFD will display five
subfunctions.
DIG_FILT SELF—TEST
PWD LOGOUT MORE
Select
MORE and press the Enter Key
A U T O C A L FILSOL H O L D
CAL-HOLD-TIMER M O R E
Use < > arrows to blink AUTO—CAL , and press Enter . A new screen
for
ZERO/SPAN set appears.
ZERO in Ød Øh off
SPAN in Ød Øh off
Press < > arrows to blink
ZERO
(or
SPAN
), 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.
Zero schedule: OFF
Day: Ød Hour: Øh
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
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
∆∆∆∆∆∇ arrows to set the OFF/ON field to ON. You can now turn these fields ON
because there is a nonzero span interval defined.
If instrument is turned off, the next time the instrument is powered, the
instrument will automatically perform a calibration cycle after 3 minutes of
entering the sample mode if AUTOCAL functions were on prior to shut down.