Configuration User Manual

Calibrating a Gas Tracer • 82
• If one or more of the sensors fails the fresh air adjustment, the SDM-2012
will abort the calibration and will not apply calibration gas. If this happens,
the CAL S LED will flash red indicating a failure and the Gas Tracer will
alternate between the following screens. Use the EDIT ENTER button to
scroll between the fresh air adjustment results for the standard three
sensors and the calibration results for the ppm sensor.
Figure 43: Failed Fresh Air Adjustment, Standard Gas Tracer and
GAS Menu Item in Edit Mode Set to ALL
0
20.9
90
%LEL
%
ppm
CH4
O2
ZERO NG
CO
800
ppm
CH4
CAL
P
P
F
%LEL
%
ppm
CH4
O2
ZERO NG
CO
F
ppm
CH4
CAL
EDIT
ENTER