RKI Instruments SDM-2012 PC Controlled Configuration - Manual (Page 111)

Calibrating a Gas Tracer • 106
17. After air is applied, and if all 3 channels and the %volume channel (if installed)
passed the zero adjustment, calibration gas from the GAS 1 cylinder will be
applied. The GAS 1 indicator on the program screen will come on. GAS 1
calibration gas will be applied to the instrument(s) for 90 seconds.
Figure 84: GAS 1 Flowing
The PC Controller Program will analyze the results.
18. If you are not calibrating an instrument or instruments with a %volume sensor
installed, continue to step 22.
If you are calibrating an instrument or instruments with a %volume sensor
installed, you will be prompted to change the GAS 2 cylinder. The pump(s) on
the instrument(s) will stop.
19. Change the cylinder connected to the GAS 2 fitting to the %volume calibration
cylinder.