RKI Instruments SDM-E2 - Manual (Page 59)

Bump Testing Standard 4-Gas Instrument(s) • 54
11. The pump will start and the program will indicate that air is flowing. The AIR
indicator on the program screen will be on and air will be applied to the
instrument(s) for 45 seconds, then the PC Controller Program will perform a
zero adjustment on all the channels. The BUMP
T
LED on the SDM-E2
control panel will be flashing amber.
Figure 35: Air Flowing
The PC Controller Program will analyze the zero adjustment results. If any
sensors failed the zero adjustment, the bump test will be aborted.