Trace Oxygen Analyzer Operation 4
4-1
Teledyne Analytical Instruments
Operation4.1 Introduction
Once the analyzer has been installed, it can be configured for your
application. To do this you will:
• Establish and start an automatic calibration cycle, if desired.
(Electrically operated valves required.)
• Define the three user selectable analysis ranges. Then choose
autoranging or select a fixed range of analysis, as required.
• Calibrate the instrument.
• Set alarm setpoints, and modes of alarm operation (latching,
failsafe, etc).
• Establish a security password, if desired, requiring Operator to
log in.
Before you configure your 3020T these default values are in effect:
Ranges: LO = 100 ppm, MED = 1000 ppm, HI = 10,000 ppm.
Auto Ranging: ON
Alarm Relays: Defeated, 1000 ppm, HI, Not failsafe, Not latching.
Zero: Auto, every 0 days at 0 hours.
Span: Auto, at 209,000 ppm, every 0 days at 0 hours.
If you choose not to use password protection, the default password is
displayed on the VFD screen only if you have entered the logout or pass-
word function, as explained later. Then, you must enter the default password
for access.
4.2 Using the Controls
To get the proper response from these controls, turn the control toward
the desired action (ESCAPE or ENTER—DOWN or UP), and then release it.
Turn-and-release once for each action. For example, turn-and-release twice