MSA Altair Mode D'emploi page 22

Figure 3-1. Bump Test Flow Chart
Table 3-1. Calibration/Bump Test Values
INSTRUMENT TYPE
CO
H 2 S
O 2
* The O 2 bump test can also be performed by exhaling on the sensor inlet for
approximately three to five seconds.
BUMP TEST GAS
60 ppm
40 ppm
<19%*
CALIBRATION GAS
60 ppm
40 ppm
20.8%
3-3