Analytical-industries GPR-1200 ATEX Portable Trace PPM Oxygen Analyzer Manuel d'utilisateur télécharger pdf (Page 16)

For example, if the analyzer is reading 1% on the 0-10% range and an upset occurs, the display will shift to the 0-25% range

when the oxygen reading exceeds 9.9%. Conversely, once the upset condition is corrected, the display will shift back to the 0-

10% range when the oxygen reading drops to 8.5%.

Manual Sampling:

1. Access the MAIN MENU by pressing the MENU key.

2. Advance the reverse shade cursor to highlight MANUAL SAMPLE.

3. Press the ENTER key to select the highlighted menu option and the following displays appear:

MAIN MENU

AUTO SAMPLE

MANUAL SAMPLE

CALIBRATION

>>>

MANUAL RANGE

25%

1000 PPM

100 PPM

10 PPM

4. Advance the reverse shade cursor to highlight the desired RANGE.

5. Press the ENTER key to select the highlighted menu option.

6. The following display(s) appear depending on the range selected and oxygen concentration of the sample gas:

3.3PPM

MANUAL SAMPLING

10 PPM RANGE

24.5 C

00.00 PPM

OVERRANGE

AUTO SAMPLING

10 PPM RANGE

24.5 C

7. The display will not shift automatically. Instead, when the oxygen reading (actually the sensor’s signal output) exceeds

110% of the upper limit of the current range an OVER RANGE warning will be displayed.

8. Once the OVER RANGE warning appears the user must advance the analyzer to the next higher range via the menu and

keypad Press MENU, select MANUAL SAMPLING, press ENTER, select the appropriate MANUAL RANGE and press ENTER

again.

Start-Up is complete . . .

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Analytical-industries GPR-1200 ATEX Portable Trace PPM Oxygen Analyzer Manuel d'utilisateur Page 16