Crowcon Gas-Pro - Detecting gas

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2.4 Detecting gas
When sampling an area that may contain water, use the ball oat probe to reduce the potential for
water travelling up the sample line.
2.4.1 Diffusion monitoring
If you wish to monitor gases in ambient air for dangerous levels, the Gas-Pro can be worn by either
clipping the strong alligator clip to clothing/overalls in the breathing zone or through the use of a
chest harness.
In the default, non-alarm state, Gas-Pro’s sounder
À will emit a beep every 10 secs, its condence
LEDs Á will ash green, the +ve Safety™ indicator  will show the current status, and the LCD display
à will indicate it is running by ashing the icon.
Figure 14: Gas-Pro indicators
In the alarm state, Gas-Pro will vibrate, its sounder
À will emit a rapid tone, the alarm LEDs Á will ash
red and blue, the +ve Safety™ indicator  will be off in alarm, the LCD display à will also be red and
highlight the gas in alarm.
À
Á
Â
Ã
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