Honeywell Midas S2 User Manual page 53

Bump Testing Notes:
1. Use a concentration of 2 ppm.
IMPORTANT: This should only be done once to avoid the danger of poisoning the sensor.
Contact the local Honeywell service representative for more information.
2. The ambient Oxygen level is typically %20.9 by volume. If there is a serious problem with an
Oxygen sensor, the reading will not be %20.9. The flow rate is regulated by the Midas S2 unit.
CO2, test gases must be in a balance of air, not Nitrogen.
As an alternative, the actual target gas can always be used instead of a cross-sensitive gas.
Higher concentrations than the recommended ones can be used if necessary, but extra time
may be needed for the reading to recover to zero.
IMPORTANT: Do not exceed the recommended concentrations or application times
where Hydrogen Sulfide is used to test Silane. Doing this can damage the cell.
Midas S2 53 User Manual