Part i 3-5 – Teledyne 6020 - Photometric analyzer User Manual
Page 29
Photometric Analyzer
Operation 3
Part I 3-5
Teledyne Analytical Instruments
•
APPLICATION
: Used to define the analysis ranges and application
(gas used).
•
MODEL
: Displays model number and software version.
•
OUTPUT_CAL
: 4-20 MA: Adjust 4 and 20 mA output.
The hierarchy of the system menu is shown in figure 3-1.
3.3.1 Setting up an AUTO-CAL
When proper automatic valving is connected, the Analyzer can cycle itself
through a sequence of steps that automatically zero and span the instrument.
Note: Before setting up an AUTO-CAL, be sure you understand the
Zero and Span functions as described in section 3.4, and
follow the precautions given there.
Note: If you require highly accurate AUTO-CAL timing, use external
AUTO-CAL control where possible. The internal clock in the
Model 6020 is accurate to 2-3 %. Accordingly, internally sched-
uled calibrations can vary 2-3 % per day.
To setup an
Auto–Cal
cycle:
Choose
System
from the main manu. TheVFD will display five subfunc-
tions.
_
С
_
С
_
С
_
С
_
С
Select
and Enter
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Use UP/DOWN to blink
Ñ
, and
Enter
. A new screen for
ZERO/SPAN
set appears.
Use UP/DOWN to blink
(or
), then
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.
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