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4. "RST/LEL – This is the LEL SENSOR RESET mode. It is only available if you
have this card in LEL gas mode. This allows you to reset/zero the LEL sensor
if it has a gas value higher than 1.0 when turning on or calibrating and it
should be showing 0. When in this mode you will hit the UP button and you
will see it show "1 then it will show c3. Once you see c3 you can hit the
menu button until your in normal mode. (this is the best way to zero out
the LEL sensor)
5. "dFt/rLd" – This is the Default reload mode. Its to reset the head back to
factory settings. This mode is most useful when using an LEL and you need
to reset the sensor. When you use this mode it will set the card to default
settings which will change the default gas type to LEL.
6. "(gastype*/Cal Limit*) - For example "H2S/025" this indicates the head is
set for H2S and the Cal limit is set to 25ppm. So when you go to give it Cal
gas it should be 25ppm.
7. "HrS/###" – This is the Hours mode. It shows how many active hours it has
from the last battery change. Currently it maxes out at 999 hours.
8. "000" – This should be the normal operating mode. In this mode if you hit it
with gas it should climb up to the correct ppm and set the monitor off.
9. "null/000" – This is the zero mode. If you have a very small floating value,
under 3 ppm this is the mode that you can Re-zero your head by clicking
the up or down buttons. (if you cant get this to clear all the way to 0 in LEL
mode use the RST/LEL mode).
10. "CAL/000" – This is the Calibration Mode. You will give it Cal Gas in this
mode and when it quits climbing higher you will hit the up button and it will
set it to what your cal limit is. This mode will not set your monitor off. If you
call it up to 25 ppm and exit this mode it will not set the monitor off either.
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