Tend equipment that measure amount of coal dust suspended in air.
What does a Dust Sampler do?
Tends equipment that measures amount of coal dust suspended in air in underground coal mine: Places sampling devices in predetermined locations in mine at beginning of work shift. Monitors apparatus periodically to ensure that dust suspension remains within safe limits. Removes collected samples at end of shift, records suspension level, and mails sample to central laboratory for analysis. Cleans and maintains equipment daily.