RKI Instruments SM-2003U - Manual (Page 30)

30 • Bump Testing and Calibrating a GX-2003 with 100% Volume Methane
following functions:
• It will apply fresh air to the instrument for 30 seconds.
• It will perform a zero operation on the GX-2003.
NOTE: If the %volume methane detector fails the zero
operation, then the calibration station will abort the
bump test or calibration and will not apply calibration
gas. If this happens, the CAL. status LED will blink red
indicating a failure and the CAL. control LED will stop
blinking and be on steadily green.
• It will apply calibration gas to the GX-2003 for the time defined
by the MODE Switch setting if a bump test is being performed or
for 90 seconds if a calibration is being performed.
• Purge the system with fresh air for 30 seconds.
10. After the system is purged, the BUMP or CAL. control LED will stop
blinking and be on steadily green and the CAL. status LED will be
on steadily green if the bump test or calibration passed or steadily
red if the bump test or calibration failed.
11. if a bump test failed and the MODE switch was set to 5, 6, 7, 8, or
9, the calibration will calibrate the GX-2003.
12. The results of the bump test or calibration will be stored in the
calibration station’s memory and will be available to copy to a USB
flash drive. See See “Copying Calibration and Bump Test Records
to a USB Flash Drive” on page 34 for instructions to copy the saved
bump test and calibration data to a USB flash drive.
13. If you wish to disable the %volume calibration function, press and
hold the VOL. button until the VOL. LED turns off.
14. Turn off the instrument by pressing and holding the BUMP and
VOL. control buttons simultaneously for at least one second and
then releasing them. If no control buttons are pressed for 10
minutes, the calibration station will automatically turn off the
instrument.