The Model Screen; Checking Linearity With Algorithm - Teledyne 7120 Operating Instructions Manual

4 Operation
The self diagnostics are run automatically by the analyzer whenever the
instrument is turned on, but the test can also be run by the operator at will. To
initiate a self diagnostic test during operation, use the UP/DOWN key to scroll
through the MAIN MENU to the SELF–TEST and Enter. The screen will follow
the running of the diagnostic.
When the testing is complete, the results are displayed.
The module is functioning properly if it is followed by OK. A number
indicates a problem in a specific area of the instrument. Refer to Chapter 5
Maintenance and Troubleshooting for number-code information. The results
screen alternates for a time with:
Then the analyzer returns to the initial System screen.

4.3.6 The Model Screen

Scroll through the MAIN MENU to MODEL and Enter. The screen
displays the manufacturer, model, and software version information.

4.3.7 Checking Linearity with ALGORITHM

Use UP/DOWN control to select ALGORITHM, and Enter.
Use the UP/DOWN Control to select the range: 01, 02, or 03. Then press
Enter.
Enter again.
Use UP/DOWN key to select and Enter VERIFY to check whether the
linearization has been accomplished satisfactorily.
4-10
RUNNING DIAGNOSTIC
Testing Preamp — Cell
Power: OK
Cell: 2
Press Any Key
To Continue...
sel rng to set algo:
—> Ø1 Ø2
Gas Use:
Range: Ø
Algorithm setup:
VERIFY
Teledyne Analytical Instruments
Analog: OK
Preamp: 3
Ø3 <—
CO2
— 10%
SET UP
Model 7120