19
When the autozero has nished or been skipped, the next screen is the home screen (Figure 12)
and displays the gas levels.
The next screen on the Tank-Pro edition of Gas-Pro is the Tank Check
screen. See the Tank
Check Mode section (see Section 2.9 on page 34) for more information.
i
Figure 12 shown below is for 5 gases in clean air.
Figure 12: Home screen
À Gas type
Á Unit
 Level
à Home Screen icon
Ä Battery level
Å Pump present
(rotating when on)
In ‘clean air’, CO
2
and Oxygen levels are typically 0.04% and 20.9% respectively. In zero mode,
these gases will actually run an ‘offset’ zero.
The Gas-Pro is now ready for use.
!
From the 1st November 2010, EN60079-29 part 1 has been harmonised under the ATEX
directive 94/9/EC. Therefore to comply with the ATEX directive, portable apparatus sensing
ammable gases should have a functional check with ammable gas before each day of
use (see Gas testing and calibration on page 37). Other testing regimes may be employed
depending on local circumstances.
À Á
Â
Ã
Ä
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