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Bump 30 – RKI Instruments GX-2012 Manual User Manual

Page 76

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68 • Calibration Mode

GX-2012 Operator’s Manual

5. Press and release the POWER ENTER button to display the bump test

gas values.

6. Use the AIRS or (SHIFT)T buttons to see the %volume combustible

gas bump test value.

7. A bump test may be performed on the standard 4 sensors or on the

%volume combustible sensor. Use the AIRS or (SHIFT)T buttons to
display the screen for the sensor(s) you wish to bump test.

8. Before proceeding, confirm that the bump test gas value(s) are the same

as the concentration(s) in the calibration cylinder. If they are not, adjust
the bump test gas value(s) by entering the AUTO CAL menu item,
changing the values there, and reentering the BUMP menu.

9. Connect the tubing from the demand flow regulator to the rigid tube on

the probe then quickly press and release the POWER ENTER button. The
unit will begin counting down from 30.

50

12.0
50
25.0

%LEL

%

ppm

ppm

MAINTENANCE

CH

4

O

2

BUMP 30

CO

H

2

S

100


vol%

MAINTENANCE

CH

4

BUMP 30