Rki-instruments GX-2012 Manual Manual de usuario descargar pdf (Pagina 113)

GX-2012 Operator’s Manual Using Maintenance Mode • 105

Calibrating Using Auto Calibration

If CL EXPRD is set to NOT USE and calibration becomes due, then the unit

must be calibrated using this menu item and/or the next menu item, ONE

CAL, because it will not be possible to enter normal operation. See

“Calibration/Bump Test Supplies and Equipment” on page 57 for the items

you will need to perform a calibration. These instructions assume you are

using a 4-gas cylinder and a %volume methane cylinder.

NOTE: If the combustible gas channel(s) are calibrated to a gas other than

methane, use an appropriate multigas cylinder or use single

calibration to calibrate the combustible channel(s).

1. Perform a fresh air adjust. See previous section for instructions.

2. Install the demand flow regulator onto the calibration cylinder.

3. Connect the sample tubing to the demand flow regulator.

4. Install the hose and probe to the GX-2012.

5. You may only calibrate either the standard 4 sensors or the % volume

combustible gas sensor at a time. Once you are finished, you are returned

to the initial AUTO CAL screen and must begin the auto calibration

process again.

6. Use the AIRS or (SHIFT)T buttons to display the AUTO CAL menu

item. Press and release the POWER ENTER button to display the

calibration values screen. If you want to exit back to the main menu

without completing a calibration, press and release the DISPLAY (ADJ)

button.

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Rki-instruments GX-2012 Manual Manual de usuario Pagina 113