Emergency Procedures Flashcards
The MSA Altair Digital gas meter is equipped with two sensors, what are they?
Combustible gas and Oxygen
The Altair digital gas meter is calibrated to detect what component of natural gas? Can it be used to detect other gases?
Methane and yes but we are not to use it to monitor for other gasses
While air monitoring the Altair digital gas meter will emit a vibrating pulse and flashing green LED light every _____ to alert the user that the meter is operating.
30 seconds
In fresh air, the normal sensor readings on the Altair digital gas meter LCD screen should read LEL ___ and O2___
LEL 0.0%
O2 20.8%
The Altair digital gas meter will alarm at the following LCD readings
LEL-
O2 enriched-
O2 deficient-
LEL- 10.0%
O2 enriched- 23.5%
O2 deficient- 19.5%
Can a defective MSA Altair digital gas meter ever be sent through the bag?
No
Can a unit put identifying markings on the MSA Altair digital gas meter?
No
When using the MSA Altair digital gas meter what is the indoor action level and what is the outdoor action level? As these levels are approached, ventilation procedures should be initiated.
Indoor- 10% LEL
Outdoor- 20% LEL
A series of what will display under the COMB/EX icon on the Altair digital gas meter when the atmosphere is above 100% LEL? This is an extremely dangerous atmosphere as it is indicative of a potentially explosive environment that members should not operate in except for life saving purposes
XXX
The low oxygen level alarm is set at what percentage on the Altair digital gas meter? Upon activation of the oxygen sensor , members shall don their SCBA facepiece and notify the IC
19.5%
The high oxygen sensor on the Altair digital gas meter will alarm at what percentage?
23.5%
When the atmosphere is above 30% oxygen what will appear on the screen below the O2 icon on the Altair digital gas meter? This is an extremely dangerous condition.
+++ (plus signs)
