2011年1月3日星期一

Benchmark Run

Benchmark Run
Benchmarks are periodic tests used to ensure the analyzer is functioning properly. If you perform a
benchmark of each applicable method at the end of start-up, this will provide a reference for later
benchmarks. In order to do benchmarks, the benchmark concentrations must be entered into the Component Definition screen and the benchmark stream must be defined (see "Preparing a Method
Table" in Section 4).
To run a benchmark test:
1. On the Background screen press the F1 (Exit to Commands) soft key.
2. On the Commands screen cursor to TABLE EDIT and then press the F2 (Methods) soft key.
3. The Method Table #?? screen will appear. Use the number keys on the GCC front panel to enter
the number of the method to benchmark. When the desired number appears on the screen,
press the F2 (Edit The Table) soft key.
4. The Cal Define & Cycle Time screen will appear. Note the benchmark stream number that
appears on the Benchmark Stream line.
5. Press the F1 (Continue) soft key.
6. When the next Method Table screen appears, press the F1 (Exit) soft key, then press the F1
(Escape) soft key.
7. When the Commands screen appears, cursor to ANALYSIS CONTROL and then press the F2
(Request Analysis) soft key.
8. On the Request Analysis screen select the method number to be benchmarked.
9. Place the cursor on “Bench” and then press the F2 (Accept The Request) soft key.
10. Press the F1 (Escape) soft key to return to the Commands screen.
11. If the analyzer is running, go to step 14. If the analyzer is stopped, go to step 12.
12. On the Commands screen press the F4 (Start/Stop Analysis) soft key.
13. On the Start/Stop Analysis screen press the F2 (Start Analyzer) soft key. The controller will
perform the benchmark as soon as all other requests have been completed.
14. Press the F1 soft key as necessary to return to the Background screen.
15. Watch the screen to determine when the benchmark stream (noted in step 4) has purged and
starts the benchmark.
16. Press the F3 (Current Report, Basic I/O, and Options) soft key.
17. On the Report, Basic I/O and Options screen, cursor to CURRENT REPORT, if necessary, and
press the F2 (View Current Report) soft key. The desired report will display at the end of the
benchmark run.
18. When the report is complete, press the F1 soft key as necessary to return to the Background
screen. The analyzer will continue to run as directed by the Stream Assignment Table unless it is
stopped by the operator.
19. To stop the analyzer press the F1 (Exit to Commands) soft key.
20. On the Commands screen, cursor to ANALYSIS CONTROL, if necessary, and press the F4
(Start/Stop Analysis) soft key.
21. On the Start/Stop Analysis screen, cursor to “At End of Analysis?” and then press the F2 (Stop
Analyzer) soft key.
22. Press the F1 soft key as necessary to return to the Background screen.
TCD Zero Adjust (Filament TCD Only)
To adjust the Thermal Conductivity Detector (TCD) zero, perform the following steps:
1. On the Background screen press the F2 (Manual Control) soft key.
2. On the Manual Control Mode screen press the F2 (Detector and Graphics) soft key.
3. On the Chroma Board screen press the F3 (Manually Zero Baseline) soft key. The Detector
Reading should change to a value of 2.00 mV ± 0.05 mV.
4. Note the readings (on the Chroma Board screen) for Hardware Zero, Software Zero, and Detector
Reading values.
5. Open the Controller front door.
6. Locate the TCD Amplifier PCB on the left side wall of the GCC and remove the plug covering the
Zero Adjust Potentiometer (see Figure 2-16).
7. Adjust the Zero Adjust potentiometer until the Detector Reading is equal to the sum of the
Hardware Zero and Software zero values noted in step 4.
8. Press the F3 (Manually Zero Baseline) soft key and recheck the readings. The detector is
adequately zeroed when the Hardware Zero percentage is less than 10%.
Stopping the Analyzer
To stop the analyzer perform the following steps:
On the Background screen press the F1 (Exit to Commands) soft key.
2. On the Commands screen cursor to ANALYSIS CONTROL, if necessary, and then press the F4
(Start/Stop Analysis) soft key.
3. On the Start/Stop Analysis screen, verify that the highlighted area is on "At End of Analysis?" and
press the F2 (Stop Analyzer) soft key. The analyzer will stop at the end of the analysis.
Press the F1 soft key as necessary to return to the Background screen.


Checking Calibration
If you have a calibration run specified for your analyzer, request a calibration run and compare the
results with those in the Data Package. To do this perform a single calibration run

1. On the Background screen press the F1 (Exit to Commands) soft key.
2. On the Commands screen cursor to ANALYSIS CONTROL, if necessary, and then press the F2
(Request Analysis) soft key.
On the Request Analysis screen (see Figure 3-5) select the method number to be calibrated.
4. Place the cursor on “Cal” and press the F2 (Accept The Request) soft key.
5. Press the F1 (Escape) soft key to return to the Commands screen.
6. On the Commands screen press the F4 (Start/Stop Analysis) soft key.
7. On the Start/Stop Analysis screen press the F2 (Start Analyzer) soft key. The controller will run
the calibration when all other requests have been completed.
8. When the calibration run is complete, verify that the Commands screen is displayed and then
press the F4 (Start/Stop Analysis) soft key.
9. On the Start/Stop Analysis screen, cursor to “At End of Analysis?” and then press the F2 (Stop
Analyzer) soft key.
10. Press the F1 soft key as necessary to return to the Background screen.
11. On the Background screen press the F3 (Cur Report, Basic I/O & Options) soft key. The screen
will display the current report. The analyzer will run the calibration when it clears other requests
and the report will appear on the screen as it happens.
12. When you have completed the calibration test, press the F1 soft key to return to the Background
Screen.
Checking Streams
To verify the operation of each stream, perform a single analysis on each one, as follows:
1. On the Background screen press the F1 (Exit to Commands) soft key.
2. On the Commands screen cursor to ANALYSIS CONTROL, if necessary, and then press the F3
(Streams) soft key.
3. On the Stream Assignment screen, determine which streams are active. Then press the F1 (Exit)
soft key to return to the Commands screen.
4. On the Commands screen press the F2 (Request Analysis) soft key.
5. On the Request Analysis screen (see Figure 3-5), select the stream number to be analyzed.
6. Place the cursor on “Stream” and then press the F2 (Accept The Request) soft key.
7. Press the F1 (Escape) soft key to return to the Commands screen.
8. On the Commands screen, press the F4 (Start/Stop Analysis) soft key.
9. On the Start/Stop Analysis screen press the F2 (Start Analyzer) soft key. The controller will start
the analysis on this stream when all other requests have been completed.
10. Press the F1 soft key as necessary to return to the Background screen.
11. Watch the screen to determine when the selected stream has purged and is starting its analysis.
12. Press the F3 (Cur Report, Basic I/O, & Options) soft key.
13. On the Report, Basic I/O and Options screen, cursor to CURRENT REPORT, if necessary, and
press the F2 (View Current Report) soft key. The desired report will display at the end of the
analysis.
14. When the report is complete, press the F1 soft key as necessary to return to the Background
screen.
15. To repeat the process for remaining streams or to rerun this stream, repeat steps 1 through 14.
16. When checkout is complete press the F1 soft key to return to the Background screen.