1-4
1 Introduction
Model 3000MA
Teledyne Analytical Instruments
Function Keys: Six touch-sensitive membrane switches are used to
change the specific function performed by the analyzer:
•
Analyze
Perform analysis for oxygen content of a sample gas.
•
System
Perform system-related tasks (described in detail in
chapter 4, Operation.).
•
Span
Span calibrate the analyzer.
•
Zero
Zero calibrate the analyzer.
•
Alarms
Set the alarm setpoints and attributes.
•
Range
Set up the 3 user definable ranges for the instrument.
Data Entry Keys: Six touch-sensitive membrane switches are used to
input data to the instrument via the alphanumeric VFD display:
•
Left & Right Arrows
Select between functions currently
displayed on theVFD screen.
•
Up & Down Arrows
Increment or decrement values of
functions currently displayed.
•
Enter
Moves VFD display on to the next screen in a series. If
none remains, returns to the
Analyze
screen.
•
Escape Moves VFD display back to the previous screen in a
series. If none remains, returns to the
Analyze
screen.
Digital Meter Display: The meter display is a LED device that
produces large, bright, 7-segment numbers that are legible in any lighting
environment. It produces a continuous readout from 0-100 %. It is accurate
across all ranges without the discontinuity of analog range switching.
Alphanumeric Interface Screen: The VFD screen is an easy-to-use
interface from operator to analyzer. It displays values, options, and messages
that give the operator immediate feedback.
Flowmeter: Monitors the flow of gas past the sensor. Readout is 0 to
1000 standard cubic centimeters per minute (SCCM).
Standby Button: The
Standby
turns off the display and outputs,
but circuitry is still operating.
CAUTION: The power cable must be unplugged to fully
disconnect power from the instrument. When
chassis is exposed or when access door is open
and power cable is connected, use extra care to
avoid contact with live electrical circuits.
