MeshGuard User’s Guide
When the gas flow starts, the LCD displays “gAS” and the span
concentration value.
The MeshGuard now counts down to 0.
Note:
The countdown time varies according to the type of sensor used in
the MeshGuard.
After counting down and reaching 0, the LCD displays “dn.” The reading
should be the span concentration value. Otherwise, the span calibration
should be repeated.
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