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│ 9 Appendix
9.15
Technical terms
Acknowledgement
Error message or an alarm to be noted and requiring a re-
sponse. Depending on the measurement situation, either only
the audible alarm signal can be muted or in addition the visual
signal and symbol can also be disabled.
Clean air
Air that is free from hydrocarbons and toxic gases.
Gas type
Hydrocarbon C
x
H
y
, which can be measured with the device
The device can measure only one gas type at a time. If you do
not want to measure with the preset gas type, during operation
you can switch between the gas types that are set up.
Inspection
Event for which the user can be reminded the device. The user
decides individually which event with which the reminder is as-
sociated (e.g. handing over the device to the device inspector).
An inspection that is due will be displayed on a start screen.
The reminder date is set in the
GasCom
software.
Long time exposure limit (LTEL)
Occupational exposure limit value over an averaging period
of 8 hours.
Occupational exposure limit (OEL)
Time weighted average concentration of a substance in the air
at the workplace. (Source: Wikipedia)
Recording
Contains the saved measurement values for a certain period
of time.
