RKI Instruments SDM-2012 Standalone Configuration - Manual (Page 68)

63 • Bump Testing a Gas Tracer
• If the ppm sensor fails the fresh air adjustment, the SDM-2012 will abort
the bump test and will not apply calibration gas. If this happens, the
BUMP
T
LED will flash red indicating a failure and the following screens
will alternate.
In this case continue with step 31.
19. The SDM-2012 will apply GAS 2 calibration gas to the ppm sensor for the time
defined by the GAS TIME bump test parameter. Be sure that the 1000 ppm
methane calibration cylinder is connected to the GAS 2 fitting.
20. The SDM-2012 will analyze the bump test results.
• If the ppm sensor passed the bump test, continue with step 21.
• If the ppm sensor did not pass the bump test, and if AUTO CAL is set to
OFF, continue with step 21.
• If the ppm sensor did not pass the bump test, and if AUTO CAL is set to
ON, a calibration will automatically begin and GAS 2 calibration gas will
continue to be applied. The CAL
S
LED will begin to flash amber.
2500
CH 4
ZERO NG
ppm
F
CH
4
ZERO NG
ppm
9800
ppm
CH
4
BUMP G2