RKI Instruments SDM-2012 PC Controlled Configuration - Manual (Page 90)

85 • Bump Testing a Gas Tracer
15. The pump will start and the program will indicate that air is flowing. The AIR
indicator on the program screen will be on. The BUMP
T
LED on the SDM-
2012 control panel will be flashing amber. Air will be applied to the ppm sensor
for 45 seconds, then the PC Controller Program will perform a zero adjustment
on the ppm channel.
If at any point during the bump test you wish to cancel the bump test, click the
Cancel button in the lower right corner of the screen. The bump test will be
aborted and the BUMP
T
LED will turn solid amber.
Figure 65: Air Flowing to PPM Sensor
The PC Controller Program will analyze the zero adjustment results. If the ppm
sensor failed the zero adjustment, the bump test will be aborted.